[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#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuzuna%2Fwordcount-rust" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/uzuna/wordcount-rust on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", 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-8/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" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "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] 4b4f92b8ad5b298271c0aaf3b8222fe6b1aed79224df1a125ac922900170233f
[INFO] running `Command { std: "docker" "start" "-a" "4b4f92b8ad5b298271c0aaf3b8222fe6b1aed79224df1a125ac922900170233f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b4f92b8ad5b298271c0aaf3b8222fe6b1aed79224df1a125ac922900170233f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b4f92b8ad5b298271c0aaf3b8222fe6b1aed79224df1a125ac922900170233f", kill_on_drop: false }`
[INFO] [stdout] 4b4f92b8ad5b298271c0aaf3b8222fe6b1aed79224df1a125ac922900170233f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56f1ffebb1da1c25a2224aa8d766185e77f39445787f81b3111fa939c3c1b911
[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" "56f1ffebb1da1c25a2224aa8d766185e77f39445787f81b3111fa939c3c1b911", kill_on_drop: false }`
[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 0.86s
[INFO] running `Command { std: "docker" "inspect" "56f1ffebb1da1c25a2224aa8d766185e77f39445787f81b3111fa939c3c1b911", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56f1ffebb1da1c25a2224aa8d766185e77f39445787f81b3111fa939c3c1b911", kill_on_drop: false }`
[INFO] [stdout] 56f1ffebb1da1c25a2224aa8d766185e77f39445787f81b3111fa939c3c1b911