[INFO] cloning repository https://github.com/ra-kete/brainrust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ra-kete/brainrust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fra-kete%2Fbrainrust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fra-kete%2Fbrainrust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 131f584790990b3b42541e2b4321254f837a1503
[INFO] checking ra-kete/brainrust against master#c5fbcd35a8217a17f6b63a22217ace06cf8f5f02 for pr-86194
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fra-kete%2Fbrainrust" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ra-kete/brainrust on toolchain c5fbcd35a8217a17f6b63a22217ace06cf8f5f02
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ra-kete/brainrust
[INFO] finished tweaking git repo https://github.com/ra-kete/brainrust
[INFO] tweaked toml for git repo https://github.com/ra-kete/brainrust written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/ra-kete/brainrust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1199b35ae50d01143df6f6550b3ac7b3c66dc0f8bfd90fe318afd21c70b3a240
[INFO] running `Command { std: "docker" "start" "-a" "1199b35ae50d01143df6f6550b3ac7b3c66dc0f8bfd90fe318afd21c70b3a240", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1199b35ae50d01143df6f6550b3ac7b3c66dc0f8bfd90fe318afd21c70b3a240", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1199b35ae50d01143df6f6550b3ac7b3c66dc0f8bfd90fe318afd21c70b3a240", kill_on_drop: false }`
[INFO] [stdout] 1199b35ae50d01143df6f6550b3ac7b3c66dc0f8bfd90fe318afd21c70b3a240
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3491d325e1561d97e705e8b91cf42e519194f26807f75affa417bf8ab5064a1a
[INFO] running `Command { std: "docker" "start" "-a" "3491d325e1561d97e705e8b91cf42e519194f26807f75affa417bf8ab5064a1a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.14
[INFO] [stderr]     Checking unicode-width v0.1.3
[INFO] [stderr]     Checking strsim v0.4.1
[INFO] [stderr]     Checking ansi_term v0.7.5
[INFO] [stderr]     Checking bitflags v0.5.0
[INFO] [stderr]     Checking term_size v0.1.0
[INFO] [stderr]     Checking clap v2.9.3
[INFO] [stderr]     Checking brainrust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:51:16
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let file = try!(File::open(filename));
[INFO] [stdout]    |                ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let byte = try!(b);
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:51:16
[INFO] [stdout]    |
[INFO] [stdout] 51 |     let file = try!(File::open(filename));
[INFO] [stdout]    |                ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |         let byte = try!(b);
[INFO] [stdout]    |                    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.22s
[INFO] running `Command { std: "docker" "inspect" "3491d325e1561d97e705e8b91cf42e519194f26807f75affa417bf8ab5064a1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3491d325e1561d97e705e8b91cf42e519194f26807f75affa417bf8ab5064a1a", kill_on_drop: false }`
[INFO] [stdout] 3491d325e1561d97e705e8b91cf42e519194f26807f75affa417bf8ab5064a1a