[INFO] updating cached repository https://github.com/peterdelevoryas/what-color-is-tokio
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fdf116d92519ed8fb063a410bcd1e57de4e3d6e5
[INFO] checking peterdelevoryas/what-color-is-tokio against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeterdelevoryas%2Fwhat-color-is-tokio" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/peterdelevoryas/what-color-is-tokio on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/peterdelevoryas/what-color-is-tokio
[INFO] finished tweaking git repo https://github.com/peterdelevoryas/what-color-is-tokio
[INFO] tweaked toml for git repo https://github.com/peterdelevoryas/what-color-is-tokio written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/peterdelevoryas/what-color-is-tokio already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] aa4d74011ae0cecc30ea7684283d124be6f5c5995336c5cdf0230feadaefc760
[INFO] running `"docker" "start" "-a" "aa4d74011ae0cecc30ea7684283d124be6f5c5995336c5cdf0230feadaefc760"`
[INFO] [stderr]    Compiling error-chain v0.7.2
[INFO] [stderr]    Compiling openssl v0.9.6
[INFO] [stderr]     Checking futures v0.1.9
[INFO] [stderr]     Checking nix v0.7.0
[INFO] [stderr]    Compiling metadeps v1.1.1
[INFO] [stderr]    Compiling openssl-sys v0.9.6
[INFO] [stderr]     Checking mio v0.6.2
[INFO] [stderr]     Checking tokio-core v0.1.3
[INFO] [stderr]     Checking native-tls v0.1.1
[INFO] [stderr]     Checking what-color-is-tokio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]   --> src/bin/sync.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let result = match read(&stream, &mut buf).wait() {
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]   --> src/bin/sync.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let result = match read(&stream, &mut buf).wait() {
[INFO] [stderr]    |         ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.16s
[INFO] running `"docker" "inspect" "aa4d74011ae0cecc30ea7684283d124be6f5c5995336c5cdf0230feadaefc760"`
[INFO] running `"docker" "rm" "-f" "aa4d74011ae0cecc30ea7684283d124be6f5c5995336c5cdf0230feadaefc760"`
[INFO] [stdout] aa4d74011ae0cecc30ea7684283d124be6f5c5995336c5cdf0230feadaefc760