[INFO] cloning repository https://github.com/tibi-p/rubik
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tibi-p/rubik" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftibi-p%2Frubik", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftibi-p%2Frubik'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a658400d5d7cd023797597039bc9b9c7ad2e1759
[INFO] testing tibi-p/rubik 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%2Ftibi-p%2Frubik" "/workspace/builds/worker-57/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-57/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tibi-p/rubik 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/tibi-p/rubik
[INFO] finished tweaking git repo https://github.com/tibi-p/rubik
[INFO] tweaked toml for git repo https://github.com/tibi-p/rubik written to /workspace/builds/worker-57/source/Cargo.toml
[INFO] crate git repo https://github.com/tibi-p/rubik 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-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] b31369f0c61533af763e5f7cf0b3d0d7a1cd2445776316a38e49852bd6fca428
[INFO] running `Command { std: "docker" "start" "-a" "b31369f0c61533af763e5f7cf0b3d0d7a1cd2445776316a38e49852bd6fca428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b31369f0c61533af763e5f7cf0b3d0d7a1cd2445776316a38e49852bd6fca428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b31369f0c61533af763e5f7cf0b3d0d7a1cd2445776316a38e49852bd6fca428", kill_on_drop: false }`
[INFO] [stdout] b31369f0c61533af763e5f7cf0b3d0d7a1cd2445776316a38e49852bd6fca428
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] 72f7bc5f697c7ea272063399ef6be93193b1f0d027162eb9623bf14724623e49
[INFO] running `Command { std: "docker" "start" "-a" "72f7bc5f697c7ea272063399ef6be93193b1f0d027162eb9623bf14724623e49", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rubik v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `edges`
[INFO] [stdout]   --> src/representation/mod.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let edges = [
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_edges`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.94s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "72f7bc5f697c7ea272063399ef6be93193b1f0d027162eb9623bf14724623e49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72f7bc5f697c7ea272063399ef6be93193b1f0d027162eb9623bf14724623e49", kill_on_drop: false }`
[INFO] [stdout] 72f7bc5f697c7ea272063399ef6be93193b1f0d027162eb9623bf14724623e49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] 0a4ea5249b5296fae3f95694e39f4efb403c0e753cdb7c3a3ab1bb3781f3acc7
[INFO] running `Command { std: "docker" "start" "-a" "0a4ea5249b5296fae3f95694e39f4efb403c0e753cdb7c3a3ab1bb3781f3acc7", kill_on_drop: false }`
[INFO] [stderr]    Compiling rubik v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `edges`
[INFO] [stdout]   --> src/representation/mod.rs:58:13
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let edges = [
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_edges`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 0.61s
[INFO] running `Command { std: "docker" "inspect" "0a4ea5249b5296fae3f95694e39f4efb403c0e753cdb7c3a3ab1bb3781f3acc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a4ea5249b5296fae3f95694e39f4efb403c0e753cdb7c3a3ab1bb3781f3acc7", kill_on_drop: false }`
[INFO] [stdout] 0a4ea5249b5296fae3f95694e39f4efb403c0e753cdb7c3a3ab1bb3781f3acc7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] 65195b8d82229ddf1752039f418cc5060da7273226e920d6e085254f2f1153aa
[INFO] running `Command { std: "docker" "start" "-a" "65195b8d82229ddf1752039f418cc5060da7273226e920d6e085254f2f1153aa", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `edges`
[INFO] [stderr]   --> src/representation/mod.rs:58:13
[INFO] [stderr]    |
[INFO] [stderr] 58 |         let edges = [
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_edges`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rubik` (bin "rubik" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rubik-880a810700bc2808)
[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" "65195b8d82229ddf1752039f418cc5060da7273226e920d6e085254f2f1153aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65195b8d82229ddf1752039f418cc5060da7273226e920d6e085254f2f1153aa", kill_on_drop: false }`
[INFO] [stdout] 65195b8d82229ddf1752039f418cc5060da7273226e920d6e085254f2f1153aa