[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 master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdihedral-codes%2Frust-rref-binary" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dihedral-codes/rust-rref-binary on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-12/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" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d000e77a92428fb42d8e4e83e5c865f38d2179715cec4ccac021c73dc3400e5c
[INFO] running `Command { std: "docker" "start" "-a" "d000e77a92428fb42d8e4e83e5c865f38d2179715cec4ccac021c73dc3400e5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d000e77a92428fb42d8e4e83e5c865f38d2179715cec4ccac021c73dc3400e5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d000e77a92428fb42d8e4e83e5c865f38d2179715cec4ccac021c73dc3400e5c", kill_on_drop: false }`
[INFO] [stdout] d000e77a92428fb42d8e4e83e5c865f38d2179715cec4ccac021c73dc3400e5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d51a556e8499835da4d8d4ee79e2b6fe750c4a808dfe6dd06799b982cc80b1ef
[INFO] running `Command { std: "docker" "start" "-a" "d51a556e8499835da4d8d4ee79e2b6fe750c4a808dfe6dd06799b982cc80b1ef", 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d51a556e8499835da4d8d4ee79e2b6fe750c4a808dfe6dd06799b982cc80b1ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d51a556e8499835da4d8d4ee79e2b6fe750c4a808dfe6dd06799b982cc80b1ef", kill_on_drop: false }`
[INFO] [stdout] d51a556e8499835da4d8d4ee79e2b6fe750c4a808dfe6dd06799b982cc80b1ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] daa9a7030df1130a64edd130569a1c90d8f9abdccc23f1bbebc0a683c4c08ff3
[INFO] running `Command { std: "docker" "start" "-a" "daa9a7030df1130a64edd130569a1c90d8f9abdccc23f1bbebc0a683c4c08ff3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 5.96s
[INFO] running `Command { std: "docker" "inspect" "daa9a7030df1130a64edd130569a1c90d8f9abdccc23f1bbebc0a683c4c08ff3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daa9a7030df1130a64edd130569a1c90d8f9abdccc23f1bbebc0a683c4c08ff3", kill_on_drop: false }`
[INFO] [stdout] daa9a7030df1130a64edd130569a1c90d8f9abdccc23f1bbebc0a683c4c08ff3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9615195e9f6021656c730a5ed92a17cf24b5de9bca657b048528633c348bf5a2
[INFO] running `Command { std: "docker" "start" "-a" "9615195e9f6021656c730a5ed92a17cf24b5de9bca657b048528633c348bf5a2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 29.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_rref_binary-bc9830c87dbec596)
[INFO] [stdout] 
[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" "9615195e9f6021656c730a5ed92a17cf24b5de9bca657b048528633c348bf5a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9615195e9f6021656c730a5ed92a17cf24b5de9bca657b048528633c348bf5a2", kill_on_drop: false }`
[INFO] [stdout] 9615195e9f6021656c730a5ed92a17cf24b5de9bca657b048528633c348bf5a2