[INFO] cloning repository https://github.com/ellcs/brr64
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ellcs/brr64" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fellcs%2Fbrr64", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fellcs%2Fbrr64'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 064db29b6605420c3edbff91768245e42bba3717
[INFO] checking ellcs/brr64 against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fellcs%2Fbrr64" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ellcs/brr64 on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ellcs/brr64
[INFO] finished tweaking git repo https://github.com/ellcs/brr64
[INFO] tweaked toml for git repo https://github.com/ellcs/brr64 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ellcs/brr64 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7566ad8219c6f836e4e64aa3b38c51ecc7d530f96fba19b82c969332aab1d9f9
[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" "7566ad8219c6f836e4e64aa3b38c51ecc7d530f96fba19b82c969332aab1d9f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7566ad8219c6f836e4e64aa3b38c51ecc7d530f96fba19b82c969332aab1d9f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7566ad8219c6f836e4e64aa3b38c51ecc7d530f96fba19b82c969332aab1d9f9", kill_on_drop: false }`
[INFO] [stdout] 7566ad8219c6f836e4e64aa3b38c51ecc7d530f96fba19b82c969332aab1d9f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "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] 5eb6d1517bdd1314f23b42aeeff65741dd986a810a13680847d90fa63e0be567
[INFO] running `Command { std: "docker" "start" "-a" "5eb6d1517bdd1314f23b42aeeff65741dd986a810a13680847d90fa63e0be567", kill_on_drop: false }`
[INFO] [stderr]     Checking brrr64 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `fooadd`
[INFO] [stdout]   --> src/playgroud.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn fooadd(a: &u8, b: &u8) -> u8 {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `every_three_chars`
[INFO] [stdout]   --> src/playgroud.rs:75:4
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn every_three_chars<F: FnMut(&[u8])>(s: &str, steps: u8, mut f: F) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "5eb6d1517bdd1314f23b42aeeff65741dd986a810a13680847d90fa63e0be567", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5eb6d1517bdd1314f23b42aeeff65741dd986a810a13680847d90fa63e0be567", kill_on_drop: false }`
[INFO] [stdout] 5eb6d1517bdd1314f23b42aeeff65741dd986a810a13680847d90fa63e0be567