[INFO] fetching crate dmsort 1.0.1...
[INFO] testing dmsort-1.0.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate dmsort 1.0.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate dmsort 1.0.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dmsort 1.0.1
[INFO] finished tweaking crates.io crate dmsort 1.0.1
[INFO] tweaked toml for crates.io crate dmsort 1.0.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate dmsort 1.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c391b35b8794f4d3368e44e8ea926210f45ad473529ef00cb6d3b802a813155
[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" "5c391b35b8794f4d3368e44e8ea926210f45ad473529ef00cb6d3b802a813155", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c391b35b8794f4d3368e44e8ea926210f45ad473529ef00cb6d3b802a813155", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c391b35b8794f4d3368e44e8ea926210f45ad473529ef00cb6d3b802a813155", kill_on_drop: false }`
[INFO] [stdout] 5c391b35b8794f4d3368e44e8ea926210f45ad473529ef00cb6d3b802a813155
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e038c6b79ed3b1ec407173ef766f77de37930746dc3dddb4c3ba1af526dc6a7
[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" "1e038c6b79ed3b1ec407173ef766f77de37930746dc3dddb4c3ba1af526dc6a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling dmsort v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "1e038c6b79ed3b1ec407173ef766f77de37930746dc3dddb4c3ba1af526dc6a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e038c6b79ed3b1ec407173ef766f77de37930746dc3dddb4c3ba1af526dc6a7", kill_on_drop: false }`
[INFO] [stdout] 1e038c6b79ed3b1ec407173ef766f77de37930746dc3dddb4c3ba1af526dc6a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2952b05ef8f86c179f2d799b99f2329afeebb6938a7c00998aa1446f2f12217f
[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" "2952b05ef8f86c179f2d799b99f2329afeebb6938a7c00998aa1446f2f12217f", kill_on_drop: false }`
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling gnuplot v0.0.22
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling quickersort v3.0.1
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling pbr v1.0.3
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling dmsort v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.31s
[INFO] running `Command { std: "docker" "inspect" "2952b05ef8f86c179f2d799b99f2329afeebb6938a7c00998aa1446f2f12217f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2952b05ef8f86c179f2d799b99f2329afeebb6938a7c00998aa1446f2f12217f", kill_on_drop: false }`
[INFO] [stdout] 2952b05ef8f86c179f2d799b99f2329afeebb6938a7c00998aa1446f2f12217f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 21c09117a173c236197175abbf64dda474d015f7166a7e8e4a4ac4491db489e9
[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" "21c09117a173c236197175abbf64dda474d015f7166a7e8e4a4ac4491db489e9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/benchmark-9711edf600210331
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tests-cae8b6d47c63cd04
[INFO] [stdout] test benchmarks ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test simple_tests ... ok
[INFO] [stderr]    Doc-tests dmsort
[INFO] [stdout] test test_unwind ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/dmsort.rs - dmsort::sort_by_key (line 379) ... ok
[INFO] [stdout] test src/dmsort.rs - dmsort::sort_by (line 365) ... ok
[INFO] [stdout] test src/lib.rs - (line 18) ... ok
[INFO] [stdout] test src/dmsort.rs - dmsort::sort (line 394) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "21c09117a173c236197175abbf64dda474d015f7166a7e8e4a4ac4491db489e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21c09117a173c236197175abbf64dda474d015f7166a7e8e4a4ac4491db489e9", kill_on_drop: false }`
[INFO] [stdout] 21c09117a173c236197175abbf64dda474d015f7166a7e8e4a4ac4491db489e9