[INFO] fetching crate stepper 0.1.0...
[INFO] testing stepper-0.1.0 against beta-2021-01-01 for beta-1.50-1
[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 beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f26c2292e7bd74c5eb651da6e2138689238534e3e6b46ed7de680bc25402854
[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" "3f26c2292e7bd74c5eb651da6e2138689238534e3e6b46ed7de680bc25402854", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f26c2292e7bd74c5eb651da6e2138689238534e3e6b46ed7de680bc25402854", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f26c2292e7bd74c5eb651da6e2138689238534e3e6b46ed7de680bc25402854", kill_on_drop: false }`
[INFO] [stdout] 3f26c2292e7bd74c5eb651da6e2138689238534e3e6b46ed7de680bc25402854
[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=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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 399e4bb3b1576eb195a4b56c1dcebf43bd9516838e714ca030bc0303ea11fb32
[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" "399e4bb3b1576eb195a4b56c1dcebf43bd9516838e714ca030bc0303ea11fb32", kill_on_drop: false }`
[INFO] [stderr]    Compiling stepper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "399e4bb3b1576eb195a4b56c1dcebf43bd9516838e714ca030bc0303ea11fb32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "399e4bb3b1576eb195a4b56c1dcebf43bd9516838e714ca030bc0303ea11fb32", kill_on_drop: false }`
[INFO] [stdout] 399e4bb3b1576eb195a4b56c1dcebf43bd9516838e714ca030bc0303ea11fb32
[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=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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 9291659a3fc8433a292132830e6bbb8c1fe78f08af327483c96b458f2a9b4d1c
[INFO] running `Command { std: "docker" "start" "-a" "9291659a3fc8433a292132830e6bbb8c1fe78f08af327483c96b458f2a9b4d1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling stepper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "9291659a3fc8433a292132830e6bbb8c1fe78f08af327483c96b458f2a9b4d1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9291659a3fc8433a292132830e6bbb8c1fe78f08af327483c96b458f2a9b4d1c", kill_on_drop: false }`
[INFO] [stdout] 9291659a3fc8433a292132830e6bbb8c1fe78f08af327483c96b458f2a9b4d1c
[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=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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e63391209b15f03835167aff3f48ec3f31363c479dba7d9809e41c583bf7e383
[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" "e63391209b15f03835167aff3f48ec3f31363c479dba7d9809e41c583bf7e383", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/stepper-3177b4b3d0ac6012
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test::step_down3 ... ok
[INFO] [stdout] test test::step_down1 ... ok
[INFO] [stdout] test test::step_down2 ... ok
[INFO] [stdout] test test::step_up1 ... ok
[INFO] [stdout] test test::step_up2 ... ok
[INFO] [stderr]    Doc-tests stepper
[INFO] [stdout] test test::step_up3 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[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" "e63391209b15f03835167aff3f48ec3f31363c479dba7d9809e41c583bf7e383", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e63391209b15f03835167aff3f48ec3f31363c479dba7d9809e41c583bf7e383", kill_on_drop: false }`
[INFO] [stdout] e63391209b15f03835167aff3f48ec3f31363c479dba7d9809e41c583bf7e383