[INFO] fetching crate stacking 0.2.5... [INFO] testing stacking-0.2.5 against 1.55.0 for beta-1.56-1 [INFO] extracting crate stacking 0.2.5 into /workspace/builds/worker-5/source [INFO] validating manifest of crates.io crate stacking 0.2.5 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 stacking 0.2.5 [INFO] finished tweaking crates.io crate stacking 0.2.5 [INFO] tweaked toml for crates.io crate stacking 0.2.5 written to /workspace/builds/worker-5/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] [stderr] Blocking waiting for file lock on package cache [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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stdout] 1ad74024ca77701cdab66f25158c65b269af5182dbc1f65d77940f659291dafa [INFO] running `Command { std: "docker" "start" "-a" "1ad74024ca77701cdab66f25158c65b269af5182dbc1f65d77940f659291dafa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1ad74024ca77701cdab66f25158c65b269af5182dbc1f65d77940f659291dafa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1ad74024ca77701cdab66f25158c65b269af5182dbc1f65d77940f659291dafa", kill_on_drop: false }` [INFO] [stdout] 1ad74024ca77701cdab66f25158c65b269af5182dbc1f65d77940f659291dafa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 6be05d21b2f02be7c22f9b46dc0a35947b7243a54660d368909959e425ee87e7 [INFO] running `Command { std: "docker" "start" "-a" "6be05d21b2f02be7c22f9b46dc0a35947b7243a54660d368909959e425ee87e7", kill_on_drop: false }` [INFO] [stderr] Compiling stacking v0.2.5 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.22s [INFO] running `Command { std: "docker" "inspect" "6be05d21b2f02be7c22f9b46dc0a35947b7243a54660d368909959e425ee87e7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6be05d21b2f02be7c22f9b46dc0a35947b7243a54660d368909959e425ee87e7", kill_on_drop: false }` [INFO] [stdout] 6be05d21b2f02be7c22f9b46dc0a35947b7243a54660d368909959e425ee87e7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 1f13e27ed99230ca241500bdaeb68cde614ab4b10e217d8a882a6c9a1d30e83f [INFO] running `Command { std: "docker" "start" "-a" "1f13e27ed99230ca241500bdaeb68cde614ab4b10e217d8a882a6c9a1d30e83f", kill_on_drop: false }` [INFO] [stderr] Compiling stacking v0.2.5 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.48s [INFO] running `Command { std: "docker" "inspect" "1f13e27ed99230ca241500bdaeb68cde614ab4b10e217d8a882a6c9a1d30e83f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f13e27ed99230ca241500bdaeb68cde614ab4b10e217d8a882a6c9a1d30e83f", kill_on_drop: false }` [INFO] [stdout] 1f13e27ed99230ca241500bdaeb68cde614ab4b10e217d8a882a6c9a1d30e83f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 614163aa59c05d06fa2b3e139314b15c0b92086e6055e809227705c5807b75e0 [INFO] running `Command { std: "docker" "start" "-a" "614163aa59c05d06fa2b3e139314b15c0b92086e6055e809227705c5807b75e0", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.01s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/stacking-0c3980ed6810b2fa) [INFO] [stdout] [INFO] [stdout] running 6 tests [INFO] [stdout] test tests::empty_queue_pop ... ok [INFO] [stdout] test tests::empty_stack_pop ... ok [INFO] [stdout] test tests::queue_len ... ok [INFO] [stdout] test tests::stack_len ... ok [INFO] [stdout] test tests::stack_push_pop ... ok [INFO] [stdout] test tests::queue_push_pop ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests stacking [INFO] [stdout] [INFO] [stdout] running 8 tests [INFO] [stdout] test src/stack.rs - stack::stacks::Stack::pop (line 147) ... ok [INFO] [stdout] test src/stack.rs - stack::stacks::Queue::len (line 294) ... ok [INFO] [stdout] test src/stack.rs - stack::stacks::Stack::push (line 126) ... ok [INFO] [stdout] test src/stack.rs - stack::stacks::Queue::pop (line 256) ... ok [INFO] [stdout] test src/lib.rs - (line 10) ... ok [INFO] [stdout] test src/lib.rs - (line 28) ... ok [INFO] [stdout] test src/stack.rs - stack::stacks::Stack::len (line 186) ... ok [INFO] [stdout] test src/stack.rs - stack::stacks::Queue::push (line 229) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.59s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "614163aa59c05d06fa2b3e139314b15c0b92086e6055e809227705c5807b75e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "614163aa59c05d06fa2b3e139314b15c0b92086e6055e809227705c5807b75e0", kill_on_drop: false }` [INFO] [stdout] 614163aa59c05d06fa2b3e139314b15c0b92086e6055e809227705c5807b75e0