[INFO] fetching crate adt 0.1.0...
[INFO] testing adt-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate adt 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate adt 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate adt 0.1.0
[INFO] finished tweaking crates.io crate adt 0.1.0
[INFO] tweaked toml for crates.io crate adt 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", 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] a37836e48e8af023c1cb02bb54250a147a9446d8e97ea50eda180000df3fb4ce
[INFO] running `Command { std: "docker" "start" "-a" "a37836e48e8af023c1cb02bb54250a147a9446d8e97ea50eda180000df3fb4ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a37836e48e8af023c1cb02bb54250a147a9446d8e97ea50eda180000df3fb4ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a37836e48e8af023c1cb02bb54250a147a9446d8e97ea50eda180000df3fb4ce", kill_on_drop: false }`
[INFO] [stdout] a37836e48e8af023c1cb02bb54250a147a9446d8e97ea50eda180000df3fb4ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3e061fd17a938e6ad00f4b12d7c25cb4a74ea2743c4cd44338e3646cf38ed45
[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" "e3e061fd17a938e6ad00f4b12d7c25cb4a74ea2743c4cd44338e3646cf38ed45", kill_on_drop: false }`
[INFO] [stderr]    Compiling adt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "e3e061fd17a938e6ad00f4b12d7c25cb4a74ea2743c4cd44338e3646cf38ed45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3e061fd17a938e6ad00f4b12d7c25cb4a74ea2743c4cd44338e3646cf38ed45", kill_on_drop: false }`
[INFO] [stdout] e3e061fd17a938e6ad00f4b12d7c25cb4a74ea2743c4cd44338e3646cf38ed45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c050a2f0963c9411ee15858ea2b349a132ee44461b1e0e257f6b4b8ded49823d
[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" "c050a2f0963c9411ee15858ea2b349a132ee44461b1e0e257f6b4b8ded49823d", kill_on_drop: false }`
[INFO] [stderr]    Compiling adt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "c050a2f0963c9411ee15858ea2b349a132ee44461b1e0e257f6b4b8ded49823d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c050a2f0963c9411ee15858ea2b349a132ee44461b1e0e257f6b4b8ded49823d", kill_on_drop: false }`
[INFO] [stdout] c050a2f0963c9411ee15858ea2b349a132ee44461b1e0e257f6b4b8ded49823d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a356f384c288bbc5ff04fc3d4d9bc0d5843db78e2a1f2d80595c5825606b3e9b
[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" "a356f384c288bbc5ff04fc3d4d9bc0d5843db78e2a1f2d80595c5825606b3e9b", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/adt-3f306ee6826d742d)
[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 tests/stack_test.rs (/opt/rustwide/target/debug/deps/stack_test-9b87e8a550cae4dc)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test stack_clear ... ok
[INFO] [stdout] test stack_is_empty ... ok
[INFO] [stdout] test stack_push ... ok
[INFO] [stdout] test stack_size ... ok
[INFO] [stdout] test stack_pop ... ok
[INFO] [stdout] test stack_peek ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests adt
[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" "a356f384c288bbc5ff04fc3d4d9bc0d5843db78e2a1f2d80595c5825606b3e9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a356f384c288bbc5ff04fc3d4d9bc0d5843db78e2a1f2d80595c5825606b3e9b", kill_on_drop: false }`
[INFO] [stdout] a356f384c288bbc5ff04fc3d4d9bc0d5843db78e2a1f2d80595c5825606b3e9b