[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 try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuzuna%2Fwordcount-rust" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/uzuna/wordcount-rust on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "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-6/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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 061fca5b8f4e927687b9f3cfe0bee49e193a62ed473c0410351c131a7963bbdc
[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" "061fca5b8f4e927687b9f3cfe0bee49e193a62ed473c0410351c131a7963bbdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "061fca5b8f4e927687b9f3cfe0bee49e193a62ed473c0410351c131a7963bbdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "061fca5b8f4e927687b9f3cfe0bee49e193a62ed473c0410351c131a7963bbdc", kill_on_drop: false }`
[INFO] [stdout] 061fca5b8f4e927687b9f3cfe0bee49e193a62ed473c0410351c131a7963bbdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 781e5576efca3fc2c2601d7e8ab1e75b0c97fcd4b9323201bdddfba14bd9df8f
[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" "781e5576efca3fc2c2601d7e8ab1e75b0c97fcd4b9323201bdddfba14bd9df8f", kill_on_drop: false }`
[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 1.30s
[INFO] running `Command { std: "docker" "inspect" "781e5576efca3fc2c2601d7e8ab1e75b0c97fcd4b9323201bdddfba14bd9df8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "781e5576efca3fc2c2601d7e8ab1e75b0c97fcd4b9323201bdddfba14bd9df8f", kill_on_drop: false }`
[INFO] [stdout] 781e5576efca3fc2c2601d7e8ab1e75b0c97fcd4b9323201bdddfba14bd9df8f