[INFO] cloning repository https://github.com/anvit25/johnson-apsp-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anvit25/johnson-apsp-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanvit25%2Fjohnson-apsp-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanvit25%2Fjohnson-apsp-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5edda0bbc3300ef1341a9c1e447df8d76e959b41
[INFO] testing anvit25/johnson-apsp-rust against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanvit25%2Fjohnson-apsp-rust" "/workspace/builds/worker-19/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-19/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anvit25/johnson-apsp-rust on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/anvit25/johnson-apsp-rust
[INFO] finished tweaking git repo https://github.com/anvit25/johnson-apsp-rust
[INFO] tweaked toml for git repo https://github.com/anvit25/johnson-apsp-rust written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] crate git repo https://github.com/anvit25/johnson-apsp-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd0ee30f31c8ccc9c91d0562088a1da614c33938674515fd5e914825538bb321
[INFO] running `Command { std: "docker" "start" "-a" "dd0ee30f31c8ccc9c91d0562088a1da614c33938674515fd5e914825538bb321", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd0ee30f31c8ccc9c91d0562088a1da614c33938674515fd5e914825538bb321", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd0ee30f31c8ccc9c91d0562088a1da614c33938674515fd5e914825538bb321", kill_on_drop: false }`
[INFO] [stdout] dd0ee30f31c8ccc9c91d0562088a1da614c33938674515fd5e914825538bb321
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4fc371c9dcdc76f012fe64b2a143ef0861adf0e519ade39cadabe48b31b2f398
[INFO] running `Command { std: "docker" "start" "-a" "4fc371c9dcdc76f012fe64b2a143ef0861adf0e519ade39cadabe48b31b2f398", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling johnson v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `check_heap`
[INFO] [stdout]    --> src/adj_list.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn check_heap(&self){
[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 9.36s
[INFO] running `Command { std: "docker" "inspect" "4fc371c9dcdc76f012fe64b2a143ef0861adf0e519ade39cadabe48b31b2f398", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fc371c9dcdc76f012fe64b2a143ef0861adf0e519ade39cadabe48b31b2f398", kill_on_drop: false }`
[INFO] [stdout] 4fc371c9dcdc76f012fe64b2a143ef0861adf0e519ade39cadabe48b31b2f398
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5316a305385fc226b324069f62549a8129a828ba947b5394bc87ddd2733f3ad1
[INFO] running `Command { std: "docker" "start" "-a" "5316a305385fc226b324069f62549a8129a828ba947b5394bc87ddd2733f3ad1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: associated function is never used: `check_heap`
[INFO] [stdout]    --> src/adj_list.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn check_heap(&self){
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling johnson v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `check_heap`
[INFO] [stdout]    --> src/adj_list.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn check_heap(&self){
[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 4m 02s
[INFO] running `Command { std: "docker" "inspect" "5316a305385fc226b324069f62549a8129a828ba947b5394bc87ddd2733f3ad1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5316a305385fc226b324069f62549a8129a828ba947b5394bc87ddd2733f3ad1", kill_on_drop: false }`
[INFO] [stdout] 5316a305385fc226b324069f62549a8129a828ba947b5394bc87ddd2733f3ad1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 504d2d0342abd9feb41420f2f52c0c8ecc1e73f1f69b1753debceb5b4d8de52d
[INFO] running `Command { std: "docker" "start" "-a" "504d2d0342abd9feb41420f2f52c0c8ecc1e73f1f69b1753debceb5b4d8de52d", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `check_heap`
[INFO] [stderr]    --> src/adj_list.rs:117:5
[INFO] [stderr]     |
[INFO] [stderr] 117 |     fn check_heap(&self){
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `johnson` (lib) generated 1 warning
[INFO] [stderr] warning: `johnson` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/johnson-55fae93f56316971)
[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] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/johnson-061782fa757dd9cc)
[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] [stderr]    Doc-tests johnson
[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" "504d2d0342abd9feb41420f2f52c0c8ecc1e73f1f69b1753debceb5b4d8de52d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "504d2d0342abd9feb41420f2f52c0c8ecc1e73f1f69b1753debceb5b4d8de52d", kill_on_drop: false }`
[INFO] [stdout] 504d2d0342abd9feb41420f2f52c0c8ecc1e73f1f69b1753debceb5b4d8de52d