[INFO] fetching crate out 6.0.0...
[INFO] testing out-6.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate out 6.0.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate out 6.0.0 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 out 6.0.0
[INFO] finished tweaking crates.io crate out 6.0.0
[INFO] tweaked toml for crates.io crate out 6.0.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 96e9e3a151e011462c833ccc581a18056626c3d0310ac4996f709e0119e1f279
[INFO] running `Command { std: "docker" "start" "-a" "96e9e3a151e011462c833ccc581a18056626c3d0310ac4996f709e0119e1f279", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96e9e3a151e011462c833ccc581a18056626c3d0310ac4996f709e0119e1f279", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96e9e3a151e011462c833ccc581a18056626c3d0310ac4996f709e0119e1f279", kill_on_drop: false }`
[INFO] [stdout] 96e9e3a151e011462c833ccc581a18056626c3d0310ac4996f709e0119e1f279
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 9ba47a39dc9b5fcbf4cfbe8fd614e53a57bdf3834f2e39ba55d185b09efc3cad
[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" "9ba47a39dc9b5fcbf4cfbe8fd614e53a57bdf3834f2e39ba55d185b09efc3cad", kill_on_drop: false }`
[INFO] [stderr]    Compiling out v6.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "9ba47a39dc9b5fcbf4cfbe8fd614e53a57bdf3834f2e39ba55d185b09efc3cad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ba47a39dc9b5fcbf4cfbe8fd614e53a57bdf3834f2e39ba55d185b09efc3cad", kill_on_drop: false }`
[INFO] [stdout] 9ba47a39dc9b5fcbf4cfbe8fd614e53a57bdf3834f2e39ba55d185b09efc3cad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] f8a45279dc8f069e21e2d212c32772c42324badf9c47140557c1d01f29fd412c
[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" "f8a45279dc8f069e21e2d212c32772c42324badf9c47140557c1d01f29fd412c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling quickcheck_macros v0.9.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling out v6.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 13.37s
[INFO] running `Command { std: "docker" "inspect" "f8a45279dc8f069e21e2d212c32772c42324badf9c47140557c1d01f29fd412c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8a45279dc8f069e21e2d212c32772c42324badf9c47140557c1d01f29fd412c", kill_on_drop: false }`
[INFO] [stdout] f8a45279dc8f069e21e2d212c32772c42324badf9c47140557c1d01f29fd412c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 66813bd44d95ed8a1c09c35a748c47494782754d75e2669df9dbc8d5001c7772
[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" "66813bd44d95ed8a1c09c35a748c47494782754d75e2669df9dbc8d5001c7772", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/out-64709ab2714f83a5
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/sort-509284da62da8d09
[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] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test slice::sort ... ok
[INFO] [stdout] test slice::sort_unstable ... ok
[INFO] [stdout] test iter::sort ... ok
[INFO] [stdout] test iter::sort_unstable ... ok
[INFO] [stdout] test slice::sort_by_cached_key ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests out
[INFO] [stdout] 
[INFO] [stdout] running 29 tests
[INFO] [stdout] test src/lib.rs - iter (line 482) ... ok
[INFO] [stdout] test src/lib.rs - (line 3) ... ok
[INFO] [stdout] test src/lib.rs - iter::max_unstable (line 634) ... ok
[INFO] [stdout] test src/lib.rs - slice::max (line 71) ... ok
[INFO] [stdout] test src/lib.rs - iter::min_by (line 573) ... ok
[INFO] [stdout] test src/lib.rs - iter::min (line 515) ... ok
[INFO] [stdout] test src/lib.rs - iter::max_by (line 531) ... ok
[INFO] [stdout] test src/lib.rs - iter::min_by_key (line 613) ... ok
[INFO] [stdout] test src/lib.rs - iter::max_unstable_by (line 668) ... ok
[INFO] [stdout] test src/lib.rs - iter::max (line 499) ... ok
[INFO] [stdout] test src/lib.rs - slice (line 54) ... ok
[INFO] [stdout] test src/lib.rs - iter::min_unstable_by_key (line 753) ... ok
[INFO] [stdout] test src/lib.rs - iter::max_by_key (line 593) ... ok
[INFO] [stdout] test src/lib.rs - iter::max_unstable_by_key (line 732) ... ok
[INFO] [stdout] test src/lib.rs - iter::min_unstable (line 651) ... ok
[INFO] [stdout] test src/lib.rs - iter::min_unstable_by (line 711) ... ok
[INFO] [stdout] test src/lib.rs - slice::max_by (line 107) ... ok
[INFO] [stdout] test src/lib.rs - slice::max_by_key (line 175) ... ok
[INFO] [stdout] test src/lib.rs - slice::max_unstable_by (line 350) ... ok
[INFO] [stdout] test src/lib.rs - slice::max_unstable_by_key (line 426) ... ok
[INFO] [stdout] test src/lib.rs - slice::min_unstable (line 332) ... ok
[INFO] [stdout] test src/lib.rs - slice::min_by_key (line 193) ... ok
[INFO] [stdout] test src/lib.rs - slice::max_unstable (line 314) ... ok
[INFO] [stdout] test src/lib.rs - slice::min (line 89) ... ok
[INFO] [stdout] test src/lib.rs - slice::min_unstable_by_key (line 448) ... ok
[INFO] [stdout] test src/lib.rs - slice::max_by_cached_key (line 214) ... ok
[INFO] [stdout] test src/lib.rs - slice::min_by (line 157) ... ok
[INFO] [stdout] test src/lib.rs - slice::min_by_cached_key (line 265) ... ok
[INFO] [stdout] test src/lib.rs - slice::min_unstable_by (line 404) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 29 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "66813bd44d95ed8a1c09c35a748c47494782754d75e2669df9dbc8d5001c7772", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66813bd44d95ed8a1c09c35a748c47494782754d75e2669df9dbc8d5001c7772", kill_on_drop: false }`
[INFO] [stdout] 66813bd44d95ed8a1c09c35a748c47494782754d75e2669df9dbc8d5001c7772