[INFO] cloning repository https://github.com/Mortano/bool_solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Mortano/bool_solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMortano%2Fbool_solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMortano%2Fbool_solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 95c0c92debb86ed9abf144430a933716f79be6d8
[INFO] testing Mortano/bool_solver 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%2FMortano%2Fbool_solver" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Mortano/bool_solver 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/Mortano/bool_solver
[INFO] finished tweaking git repo https://github.com/Mortano/bool_solver
[INFO] tweaked toml for git repo https://github.com/Mortano/bool_solver written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Mortano/bool_solver 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 6fba79cce7fddb867eac003f46cf26a3aedc76194a5d0f923eba654378dc33b7
[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" "6fba79cce7fddb867eac003f46cf26a3aedc76194a5d0f923eba654378dc33b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fba79cce7fddb867eac003f46cf26a3aedc76194a5d0f923eba654378dc33b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fba79cce7fddb867eac003f46cf26a3aedc76194a5d0f923eba654378dc33b7", kill_on_drop: false }`
[INFO] [stdout] 6fba79cce7fddb867eac003f46cf26a3aedc76194a5d0f923eba654378dc33b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 12cb850a8bb3e8cb3dcca6f3582c78ed9bfb0d5ee05df0f40c0c06ba50d29492
[INFO] running `Command { std: "docker" "start" "-a" "12cb850a8bb3e8cb3dcca6f3582c78ed9bfb0d5ee05df0f40c0c06ba50d29492", kill_on_drop: false }`
[INFO] [stderr]    Compiling bool_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `unique_variables`
[INFO] [stdout]   --> src/main.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn unique_variables(&self) -> HashSet<usize> {
[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 1.09s
[INFO] running `Command { std: "docker" "inspect" "12cb850a8bb3e8cb3dcca6f3582c78ed9bfb0d5ee05df0f40c0c06ba50d29492", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12cb850a8bb3e8cb3dcca6f3582c78ed9bfb0d5ee05df0f40c0c06ba50d29492", kill_on_drop: false }`
[INFO] [stdout] 12cb850a8bb3e8cb3dcca6f3582c78ed9bfb0d5ee05df0f40c0c06ba50d29492
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] eae43295e851944c73c15c9146f57b0ce8e95877360b56a74253ca0c3ebd59f3
[INFO] running `Command { std: "docker" "start" "-a" "eae43295e851944c73c15c9146f57b0ce8e95877360b56a74253ca0c3ebd59f3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bool_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `unique_variables`
[INFO] [stdout]   --> src/main.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn unique_variables(&self) -> HashSet<usize> {
[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 1.06s
[INFO] running `Command { std: "docker" "inspect" "eae43295e851944c73c15c9146f57b0ce8e95877360b56a74253ca0c3ebd59f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eae43295e851944c73c15c9146f57b0ce8e95877360b56a74253ca0c3ebd59f3", kill_on_drop: false }`
[INFO] [stdout] eae43295e851944c73c15c9146f57b0ce8e95877360b56a74253ca0c3ebd59f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1e45e4a7b4c2ab001a23391b8deaeab853f60cda906613652ecf09b04f75dc94
[INFO] running `Command { std: "docker" "start" "-a" "1e45e4a7b4c2ab001a23391b8deaeab853f60cda906613652ecf09b04f75dc94", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `unique_variables`
[INFO] [stderr]   --> src/main.rs:26:12
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn unique_variables(&self) -> HashSet<usize> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `bool_solver` (bin "bool_solver" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bool_solver-7091f826d0d5e018)
[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" "1e45e4a7b4c2ab001a23391b8deaeab853f60cda906613652ecf09b04f75dc94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e45e4a7b4c2ab001a23391b8deaeab853f60cda906613652ecf09b04f75dc94", kill_on_drop: false }`
[INFO] [stdout] 1e45e4a7b4c2ab001a23391b8deaeab853f60cda906613652ecf09b04f75dc94