[INFO] cloning repository https://github.com/mchesser/snake-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mchesser/snake-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmchesser%2Fsnake-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmchesser%2Fsnake-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 53f12862dcf73d41bb50ffa24aebeceb979f2390
[INFO] checking mchesser/snake-rs against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmchesser%2Fsnake-rs" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mchesser/snake-rs on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mchesser/snake-rs
[INFO] finished tweaking git repo https://github.com/mchesser/snake-rs
[INFO] tweaked toml for git repo https://github.com/mchesser/snake-rs written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/mchesser/snake-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6948ea7485504b9a026dc7d37ca749161c962764951b1b6ae8eb9dbea49a8d7
[INFO] running `Command { std: "docker" "start" "-a" "c6948ea7485504b9a026dc7d37ca749161c962764951b1b6ae8eb9dbea49a8d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6948ea7485504b9a026dc7d37ca749161c962764951b1b6ae8eb9dbea49a8d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6948ea7485504b9a026dc7d37ca749161c962764951b1b6ae8eb9dbea49a8d7", kill_on_drop: false }`
[INFO] [stdout] c6948ea7485504b9a026dc7d37ca749161c962764951b1b6ae8eb9dbea49a8d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ea520b79f92c2f4cd6ad56c24abce1c9df3f5258d46788a1c12f6acde6364a7
[INFO] running `Command { std: "docker" "start" "-a" "7ea520b79f92c2f4cd6ad56c24abce1c9df3f5258d46788a1c12f6acde6364a7", kill_on_drop: false }`
[INFO] [stderr]     Checking num-traits v0.1.32
[INFO] [stderr]     Checking libc v0.2.10
[INFO] [stderr]     Checking rustc-serialize v0.3.19
[INFO] [stderr]    Compiling sdl2-sys v0.8.1 (https://github.com/AngryLawyer/rust-sdl2#217d55f8)
[INFO] [stderr]     Checking interpolate v0.1.0 (https://github.com/quvarxa/interpolate#d055123f)
[INFO] [stderr]     Checking libc v0.1.12
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking bitflags v0.5.0
[INFO] [stderr]     Checking clock_ticks v0.1.0
[INFO] [stdout] error[E0642]: patterns aren't allowed in functions without bodies
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.19/src/serialize.rs:147:45
[INFO] [stdout]     |
[INFO] [stdout] 147 | ...                   &f_name: &str,
[INFO] [stdout]     |                       ^^^^^^^ pattern not allowed in function without body
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand v0.3.14
[INFO] [stderr]     Checking num-integer v0.1.32
[INFO] [stderr]     Checking num-iter v0.1.32
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0642`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-serialize`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "7ea520b79f92c2f4cd6ad56c24abce1c9df3f5258d46788a1c12f6acde6364a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ea520b79f92c2f4cd6ad56c24abce1c9df3f5258d46788a1c12f6acde6364a7", kill_on_drop: false }`
[INFO] [stdout] 7ea520b79f92c2f4cd6ad56c24abce1c9df3f5258d46788a1c12f6acde6364a7