[INFO] cloning repository https://github.com/dihedral-codes/rust-rref-binary
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dihedral-codes/rust-rref-binary" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdihedral-codes%2Frust-rref-binary", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdihedral-codes%2Frust-rref-binary'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a5ca8a0906ecbacb3a6c8abec67f627658912f67
[INFO] testing dihedral-codes/rust-rref-binary against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdihedral-codes%2Frust-rref-binary" "/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/dihedral-codes/rust-rref-binary on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dihedral-codes/rust-rref-binary
[INFO] finished tweaking git repo https://github.com/dihedral-codes/rust-rref-binary
[INFO] tweaked toml for git repo https://github.com/dihedral-codes/rust-rref-binary written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/dihedral-codes/rust-rref-binary already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d495720550a52b931ede22b9c7d7ffa71502ed7f71a48af8937a6e81eb26400b
[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" "d495720550a52b931ede22b9c7d7ffa71502ed7f71a48af8937a6e81eb26400b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d495720550a52b931ede22b9c7d7ffa71502ed7f71a48af8937a6e81eb26400b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d495720550a52b931ede22b9c7d7ffa71502ed7f71a48af8937a6e81eb26400b", kill_on_drop: false }`
[INFO] [stdout] d495720550a52b931ede22b9c7d7ffa71502ed7f71a48af8937a6e81eb26400b
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ab2a50d912858ad24c51a76187ab0ce45451733037fc10f52f1706645dfae94
[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" "4ab2a50d912858ad24c51a76187ab0ce45451733037fc10f52f1706645dfae94", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-rref-binary v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `printmat`
[INFO] [stdout]   --> src/main.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn printmat(matrix:[u64; N]) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` 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 0.81s
[INFO] running `Command { std: "docker" "inspect" "4ab2a50d912858ad24c51a76187ab0ce45451733037fc10f52f1706645dfae94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ab2a50d912858ad24c51a76187ab0ce45451733037fc10f52f1706645dfae94", kill_on_drop: false }`
[INFO] [stdout] 4ab2a50d912858ad24c51a76187ab0ce45451733037fc10f52f1706645dfae94
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--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] 1c74a554badac8b1d659b6bdc373a590cfa5efa2ad792127f7816536f22fc2a2
[INFO] running `Command { std: "docker" "start" "-a" "1c74a554badac8b1d659b6bdc373a590cfa5efa2ad792127f7816536f22fc2a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-rref-binary v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `printmat`
[INFO] [stdout]   --> src/main.rs:64:4
[INFO] [stdout]    |
[INFO] [stdout] 64 | fn printmat(matrix:[u64; N]) {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "1c74a554badac8b1d659b6bdc373a590cfa5efa2ad792127f7816536f22fc2a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c74a554badac8b1d659b6bdc373a590cfa5efa2ad792127f7816536f22fc2a2", kill_on_drop: false }`
[INFO] [stdout] 1c74a554badac8b1d659b6bdc373a590cfa5efa2ad792127f7816536f22fc2a2
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", 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] 7c10b420b786c87f0ab64033627c2ef277efec6e6c6c50021eee1b6b65553c81
[INFO] running `Command { std: "docker" "start" "-a" "7c10b420b786c87f0ab64033627c2ef277efec6e6c6c50021eee1b6b65553c81", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `printmat`
[INFO] [stderr]   --> src/main.rs:64:4
[INFO] [stderr]    |
[INFO] [stderr] 64 | fn printmat(matrix:[u64; N]) {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-rref-binary` (bin "rust-rref-binary" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_rref_binary-bc9830c87dbec596)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7c10b420b786c87f0ab64033627c2ef277efec6e6c6c50021eee1b6b65553c81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c10b420b786c87f0ab64033627c2ef277efec6e6c6c50021eee1b6b65553c81", kill_on_drop: false }`
[INFO] [stdout] 7c10b420b786c87f0ab64033627c2ef277efec6e6c6c50021eee1b6b65553c81