[INFO] cloning repository https://github.com/uzuna/wordcount-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uzuna/wordcount-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuzuna%2Fwordcount-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuzuna%2Fwordcount-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 331694bef859c9ac2151b59fd78243f6cfe4cae7
[INFO] checking uzuna/wordcount-rust against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuzuna%2Fwordcount-rust" "/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/uzuna/wordcount-rust on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/uzuna/wordcount-rust
[INFO] finished tweaking git repo https://github.com/uzuna/wordcount-rust
[INFO] tweaked toml for git repo https://github.com/uzuna/wordcount-rust written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/uzuna/wordcount-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7fbc3bfe3ebb8230e28352654544ba60f0aeaed3a829eff2662e262aebae14f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e7fbc3bfe3ebb8230e28352654544ba60f0aeaed3a829eff2662e262aebae14f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7fbc3bfe3ebb8230e28352654544ba60f0aeaed3a829eff2662e262aebae14f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7fbc3bfe3ebb8230e28352654544ba60f0aeaed3a829eff2662e262aebae14f", kill_on_drop: false }`
[INFO] [stdout] e7fbc3bfe3ebb8230e28352654544ba60f0aeaed3a829eff2662e262aebae14f
[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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02295b5156533e67e343b5d1cd15fc07b02a8a25ec1c3050ad7427a385a35f90
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "02295b5156533e67e343b5d1cd15fc07b02a8a25ec1c3050ad7427a385a35f90", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking wordcount v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]   --> src/lib.rs:92:1
[INFO] [stdout]    |
[INFO] [stdout] 92 | / macro_rules! assert_map {
[INFO] [stdout] 93 | |   ($expr: expr, {$($key: expr => $value:expr),*}) => {
[INFO] [stdout] 94 | |     $(assert_eq!($expr[$key], $value));*
[INFO] [stdout] 95 | |   };
[INFO] [stdout] 96 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_macros)]` 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 2.22s
[INFO] running `Command { std: "docker" "inspect" "02295b5156533e67e343b5d1cd15fc07b02a8a25ec1c3050ad7427a385a35f90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02295b5156533e67e343b5d1cd15fc07b02a8a25ec1c3050ad7427a385a35f90", kill_on_drop: false }`
[INFO] [stdout] 02295b5156533e67e343b5d1cd15fc07b02a8a25ec1c3050ad7427a385a35f90