[INFO] cloning repository https://github.com/mlevesquedion/stack_set
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mlevesquedion/stack_set" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmlevesquedion%2Fstack_set", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmlevesquedion%2Fstack_set'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13f767956d0fdb26ca60097bd4aa54a779356e85
[INFO] testing mlevesquedion/stack_set 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%2Fmlevesquedion%2Fstack_set" "/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/mlevesquedion/stack_set 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/mlevesquedion/stack_set
[INFO] finished tweaking git repo https://github.com/mlevesquedion/stack_set
[INFO] tweaked toml for git repo https://github.com/mlevesquedion/stack_set written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/mlevesquedion/stack_set 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]  Downloading crates ...
[INFO] [stderr]   Downloaded next_prime v0.1.1
[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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7bc8cb086738b34bf34ee08b96e0da08aba5fbf36648eb926d98c799e23ee22f
[INFO] running `Command { std: "docker" "start" "-a" "7bc8cb086738b34bf34ee08b96e0da08aba5fbf36648eb926d98c799e23ee22f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bc8cb086738b34bf34ee08b96e0da08aba5fbf36648eb926d98c799e23ee22f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bc8cb086738b34bf34ee08b96e0da08aba5fbf36648eb926d98c799e23ee22f", kill_on_drop: false }`
[INFO] [stdout] 7bc8cb086738b34bf34ee08b96e0da08aba5fbf36648eb926d98c799e23ee22f
[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=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] f03ca6f41337b3ffad689cdd675fc224d3fb2af5ac1d4eea1a843a0177e94ac1
[INFO] running `Command { std: "docker" "start" "-a" "f03ca6f41337b3ffad689cdd675fc224d3fb2af5ac1d4eea1a843a0177e94ac1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling next_prime v0.1.1
[INFO] [stderr]    Compiling stack_set v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `Command { std: "docker" "inspect" "f03ca6f41337b3ffad689cdd675fc224d3fb2af5ac1d4eea1a843a0177e94ac1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f03ca6f41337b3ffad689cdd675fc224d3fb2af5ac1d4eea1a843a0177e94ac1", kill_on_drop: false }`
[INFO] [stdout] f03ca6f41337b3ffad689cdd675fc224d3fb2af5ac1d4eea1a843a0177e94ac1
[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=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] 4fb4b9d9c93ca9d28a9b8e17039061f3e9a7891f9c9f9f54493fad2c64773540
[INFO] running `Command { std: "docker" "start" "-a" "4fb4b9d9c93ca9d28a9b8e17039061f3e9a7891f9c9f9f54493fad2c64773540", kill_on_drop: false }`
[INFO] [stderr]    Compiling stack_set v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "4fb4b9d9c93ca9d28a9b8e17039061f3e9a7891f9c9f9f54493fad2c64773540", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fb4b9d9c93ca9d28a9b8e17039061f3e9a7891f9c9f9f54493fad2c64773540", kill_on_drop: false }`
[INFO] [stdout] 4fb4b9d9c93ca9d28a9b8e17039061f3e9a7891f9c9f9f54493fad2c64773540
[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=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] 6f288cfbb3380f7ea40d84d432130821e135febb7ee23b192a115ce1a5547abe
[INFO] running `Command { std: "docker" "start" "-a" "6f288cfbb3380f7ea40d84d432130821e135febb7ee23b192a115ce1a5547abe", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 9 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/stack_set-62abc3f8b35ae648)
[INFO] [stdout] test tests::stack_contains_element_that_was_added ... ok
[INFO] [stdout] test tests::stack_does_not_contain_element_that_was_popped ... ok
[INFO] [stdout] test tests::stack_has_no_top_when_empty ... ok
[INFO] [stdout] test tests::stack_is_not_empty_after_push ... ok
[INFO] [stdout] test tests::top_returns_last_element_that_was_added ... ok
[INFO] [stdout] test tests::new_stack_is_empty ... ok
[INFO] [stdout] test tests::empty_stack_contains_nothing ... ok
[INFO] [stdout] test tests::pop_returns_and_removes_top_element ... ok
[INFO] [stdout] test tests::cannot_pop_from_empty_stack - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/stack_set-af8cd9ee4169fe82)
[INFO] [stderr]    Doc-tests stack_set
[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] [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" "6f288cfbb3380f7ea40d84d432130821e135febb7ee23b192a115ce1a5547abe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f288cfbb3380f7ea40d84d432130821e135febb7ee23b192a115ce1a5547abe", kill_on_drop: false }`
[INFO] [stdout] 6f288cfbb3380f7ea40d84d432130821e135febb7ee23b192a115ce1a5547abe