[INFO] fetching crate stepper 0.1.0...
[INFO] testing stepper-0.1.0 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate stepper 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate stepper 0.1.0 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stepper 0.1.0
[INFO] finished tweaking crates.io crate stepper 0.1.0
[INFO] tweaked toml for crates.io crate stepper 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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] 9012551e83e5c0f1c0c080248464c5b51dc39e26d566b06726dbfd6746abc633
[INFO] running `Command { std: "docker" "start" "-a" "9012551e83e5c0f1c0c080248464c5b51dc39e26d566b06726dbfd6746abc633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9012551e83e5c0f1c0c080248464c5b51dc39e26d566b06726dbfd6746abc633", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9012551e83e5c0f1c0c080248464c5b51dc39e26d566b06726dbfd6746abc633", kill_on_drop: false }`
[INFO] [stdout] 9012551e83e5c0f1c0c080248464c5b51dc39e26d566b06726dbfd6746abc633
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=forbid" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] febbeeb9136b9733ebfaddc9cf5afa295e5cab82b96cab5d413b0a55e9e36b5f
[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" "febbeeb9136b9733ebfaddc9cf5afa295e5cab82b96cab5d413b0a55e9e36b5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling stepper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "febbeeb9136b9733ebfaddc9cf5afa295e5cab82b96cab5d413b0a55e9e36b5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "febbeeb9136b9733ebfaddc9cf5afa295e5cab82b96cab5d413b0a55e9e36b5f", kill_on_drop: false }`
[INFO] [stdout] febbeeb9136b9733ebfaddc9cf5afa295e5cab82b96cab5d413b0a55e9e36b5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=forbid" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4137bbe26e5c96362709d4b0f7319b870a0bc93efeb8846d2acc854458cc811
[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" "c4137bbe26e5c96362709d4b0f7319b870a0bc93efeb8846d2acc854458cc811", kill_on_drop: false }`
[INFO] [stderr]    Compiling stepper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "c4137bbe26e5c96362709d4b0f7319b870a0bc93efeb8846d2acc854458cc811", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4137bbe26e5c96362709d4b0f7319b870a0bc93efeb8846d2acc854458cc811", kill_on_drop: false }`
[INFO] [stdout] c4137bbe26e5c96362709d4b0f7319b870a0bc93efeb8846d2acc854458cc811
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=forbid" "-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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d7943d242df0aaa6aa3ad5c7c932c7d776831c7ca04eda4c201c02d17704b7dd
[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" "d7943d242df0aaa6aa3ad5c7c932c7d776831c7ca04eda4c201c02d17704b7dd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/stepper-404b4936c5bc0386
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test::step_down1 ... ok
[INFO] [stdout] test test::step_down2 ... ok
[INFO] [stdout] test test::step_up3 ... ok
[INFO] [stdout] test test::step_up2 ... ok
[INFO] [stdout] test test::step_up1 ... ok
[INFO] [stderr]    Doc-tests stepper
[INFO] [stdout] test test::step_down3 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d7943d242df0aaa6aa3ad5c7c932c7d776831c7ca04eda4c201c02d17704b7dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7943d242df0aaa6aa3ad5c7c932c7d776831c7ca04eda4c201c02d17704b7dd", kill_on_drop: false }`
[INFO] [stdout] d7943d242df0aaa6aa3ad5c7c932c7d776831c7ca04eda4c201c02d17704b7dd