[INFO] cloning repository https://github.com/alonn24/rustlang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alonn24/rustlang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falonn24%2Frustlang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falonn24%2Frustlang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 170039094ca130b44bac27c329c24ac1bd962160
[INFO] checking alonn24/rustlang against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falonn24%2Frustlang" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alonn24/rustlang on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alonn24/rustlang
[INFO] finished tweaking git repo https://github.com/alonn24/rustlang
[INFO] tweaked toml for git repo https://github.com/alonn24/rustlang written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/alonn24/rustlang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e710d90533c1f730d87437a2e0c36dba474757a2b1d7395232985cb292a8fb77
[INFO] running `Command { std: "docker" "start" "-a" "e710d90533c1f730d87437a2e0c36dba474757a2b1d7395232985cb292a8fb77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e710d90533c1f730d87437a2e0c36dba474757a2b1d7395232985cb292a8fb77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e710d90533c1f730d87437a2e0c36dba474757a2b1d7395232985cb292a8fb77", kill_on_drop: false }`
[INFO] [stdout] e710d90533c1f730d87437a2e0c36dba474757a2b1d7395232985cb292a8fb77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 271ab7f32083de2859edaded5828709e856ea410a08472420ccf9a71a4d4ee3e
[INFO] running `Command { std: "docker" "start" "-a" "271ab7f32083de2859edaded5828709e856ea410a08472420ccf9a71a4d4ee3e", kill_on_drop: false }`
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking difference v1.0.0
[INFO] [stderr]     Checking rustlang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/adventofcode2019/day3/part2.rs:44:22
[INFO] [stdout]    |
[INFO] [stdout] 44 |   let mut found: Vec<((i32, i32))> = vec![];
[INFO] [stdout]    |                      ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking pretty_assertions v0.4.1
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/adventofcode2019/day3/part2.rs:44:22
[INFO] [stdout]    |
[INFO] [stdout] 44 |   let mut found: Vec<((i32, i32))> = vec![];
[INFO] [stdout]    |                      ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "271ab7f32083de2859edaded5828709e856ea410a08472420ccf9a71a4d4ee3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "271ab7f32083de2859edaded5828709e856ea410a08472420ccf9a71a4d4ee3e", kill_on_drop: false }`
[INFO] [stdout] 271ab7f32083de2859edaded5828709e856ea410a08472420ccf9a71a4d4ee3e