[INFO] fetching crate super_steve_merge_sort 0.1.0...
[INFO] testing super_steve_merge_sort-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate super_steve_merge_sort 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate super_steve_merge_sort 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 super_steve_merge_sort 0.1.0
[INFO] finished tweaking crates.io crate super_steve_merge_sort 0.1.0
[INFO] tweaked toml for crates.io crate super_steve_merge_sort 0.1.0 written to /workspace/builds/worker-4/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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] bb2a594294c09f6bec0ffc460412afb9042945e79123d0c2d6c421cc7b6d01ea
[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" "bb2a594294c09f6bec0ffc460412afb9042945e79123d0c2d6c421cc7b6d01ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb2a594294c09f6bec0ffc460412afb9042945e79123d0c2d6c421cc7b6d01ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb2a594294c09f6bec0ffc460412afb9042945e79123d0c2d6c421cc7b6d01ea", kill_on_drop: false }`
[INFO] [stdout] bb2a594294c09f6bec0ffc460412afb9042945e79123d0c2d6c421cc7b6d01ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 29a6cd7674d19931937dbf0202c14a54cc2ce007b9960ddc2d0b0a67b196cb15
[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" "29a6cd7674d19931937dbf0202c14a54cc2ce007b9960ddc2d0b0a67b196cb15", kill_on_drop: false }`
[INFO] [stderr]    Compiling super_steve_merge_sort v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "29a6cd7674d19931937dbf0202c14a54cc2ce007b9960ddc2d0b0a67b196cb15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29a6cd7674d19931937dbf0202c14a54cc2ce007b9960ddc2d0b0a67b196cb15", kill_on_drop: false }`
[INFO] [stdout] 29a6cd7674d19931937dbf0202c14a54cc2ce007b9960ddc2d0b0a67b196cb15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] e3c9ead7382856cf9bcfb81eaa10ab2b2f3e27c015ea00d2e779af21be2a2668
[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" "e3c9ead7382856cf9bcfb81eaa10ab2b2f3e27c015ea00d2e779af21be2a2668", kill_on_drop: false }`
[INFO] [stderr]    Compiling super_steve_merge_sort v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "e3c9ead7382856cf9bcfb81eaa10ab2b2f3e27c015ea00d2e779af21be2a2668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3c9ead7382856cf9bcfb81eaa10ab2b2f3e27c015ea00d2e779af21be2a2668", kill_on_drop: false }`
[INFO] [stdout] e3c9ead7382856cf9bcfb81eaa10ab2b2f3e27c015ea00d2e779af21be2a2668
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 96e20fc8dbcc8811891df51de22e447da3f55354dea0bcd2a07973286062d428
[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" "96e20fc8dbcc8811891df51de22e447da3f55354dea0bcd2a07973286062d428", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/super_steve_merge_sort-08c4f44ec72d300b
[INFO] [stdout] test tests::test_merge_sort ... ok
[INFO] [stderr]    Doc-tests super_steve_merge_sort
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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" "96e20fc8dbcc8811891df51de22e447da3f55354dea0bcd2a07973286062d428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96e20fc8dbcc8811891df51de22e447da3f55354dea0bcd2a07973286062d428", kill_on_drop: false }`
[INFO] [stdout] 96e20fc8dbcc8811891df51de22e447da3f55354dea0bcd2a07973286062d428