gistfile1.txt

  fabrice@xps13:~/dev/servonk$ /home/fabrice/dev/cargo/target/release/cargo update -p gcc
    Updating registry `https://github.com/rust-lang/crates.io-index`
error: failed to select a version for `mio`.
    ... required by package `actix-web v0.4.0`
    ... which is depended on by `servonk v0.1.0 (file:///home/fabrice/dev/servonk)`
versions that meet the requirements `^0.6.13` are: 0.6.14, 0.6.13

all possible versions conflict with previously selected packages.

  previously selected package `mio v0.6.9`
    ... which is depended on by `ipc-channel v0.9.0`
    ... which is depended on by `profile v0.0.1 (https://github.com/fabricedesre/servo?branch=gonk#063e5f3e)`
    ... which is depended on by `libservo v0.0.1 (https://github.com/fabricedesre/servo?branch=gonk#063e5f3e)`
    ... which is depended on by `servonk v0.1.0 (file:///home/fabrice/dev/servonk)`

failed to select a version for `mio` which could resolve this conflict
  fabrice@xps13:~/dev/servonk$ /home/fabrice/dev/cargo/target/release/cargo update -p mio
    Updating registry `https://github.com/rust-lang/crates.io-index`
error: failed to select a version for `gcc`.
    ... required by package `ring v0.12.0`
    ... which is depended on by `cookie v0.10.1`
    ... which is depended on by `net v0.0.1 (https://github.com/fabricedesre/servo?branch=gonk#063e5f3e)`
    ... which is depended on by `constellation v0.0.1 (https://github.com/fabricedesre/servo?branch=gonk#063e5f3e)`
    ... which is depended on by `libservo v0.0.1 (https://github.com/fabricedesre/servo?branch=gonk#063e5f3e)`
    ... which is depended on by `servonk v0.1.0 (file:///home/fabrice/dev/servonk)`
versions that meet the requirements `^0.3.53` are: 0.3.54, 0.3.53

all possible versions conflict with previously selected packages.

  previously selected package `gcc v0.3.47`
    ... which is depended on by `backtrace-sys v0.1.11`
    ... which is depended on by `backtrace v0.3.5`
    ... which is depended on by `constellation v0.0.1 (https://github.com/fabricedesre/servo?branch=gonk#063e5f3e)`
    ... which is depended on by `libservo v0.0.1 (https://github.com/fabricedesre/servo?branch=gonk#063e5f3e)`
    ... which is depended on by `servonk v0.1.0 (file:///home/fabrice/dev/servonk)`

failed to select a version for `gcc` which could resolve this conflict