[INFO] fetching crate red-black 0.1.0...
[INFO] testing red-black-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate red-black 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate red-black 0.1.0 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 red-black 0.1.0
[INFO] finished tweaking crates.io crate red-black 0.1.0
[INFO] tweaked toml for crates.io crate red-black 0.1.0 written to /workspace/builds/worker-1/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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_core v0.5.1
[INFO] [stderr]   Downloaded cfg-if v1.0.0
[INFO] [stderr]   Downloaded rand_chacha v0.2.2
[INFO] [stderr]   Downloaded getrandom v0.1.16
[INFO] [stderr]   Downloaded rand v0.7.3
[INFO] [stderr]   Downloaded rand_hc v0.2.0
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.10
[INFO] [stderr]   Downloaded libc v0.2.81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b680218dbaa430aaa39c6ca400a9fe680abb933f7e04c2f54b67a6beccb4fec
[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" "5b680218dbaa430aaa39c6ca400a9fe680abb933f7e04c2f54b67a6beccb4fec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b680218dbaa430aaa39c6ca400a9fe680abb933f7e04c2f54b67a6beccb4fec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b680218dbaa430aaa39c6ca400a9fe680abb933f7e04c2f54b67a6beccb4fec", kill_on_drop: false }`
[INFO] [stdout] 5b680218dbaa430aaa39c6ca400a9fe680abb933f7e04c2f54b67a6beccb4fec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64624cda7a99afe0d636b0cc3320d363f59dc62e625df42d75577447f24a3c5f
[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" "64624cda7a99afe0d636b0cc3320d363f59dc62e625df42d75577447f24a3c5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling red-black v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "64624cda7a99afe0d636b0cc3320d363f59dc62e625df42d75577447f24a3c5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64624cda7a99afe0d636b0cc3320d363f59dc62e625df42d75577447f24a3c5f", kill_on_drop: false }`
[INFO] [stdout] 64624cda7a99afe0d636b0cc3320d363f59dc62e625df42d75577447f24a3c5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21bc5331aae15417413c33b148411abd94a5b1dcc8c4cada7d6f6283b49cf2d5
[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" "21bc5331aae15417413c33b148411abd94a5b1dcc8c4cada7d6f6283b49cf2d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling red-black v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `Command { std: "docker" "inspect" "21bc5331aae15417413c33b148411abd94a5b1dcc8c4cada7d6f6283b49cf2d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21bc5331aae15417413c33b148411abd94a5b1dcc8c4cada7d6f6283b49cf2d5", kill_on_drop: false }`
[INFO] [stdout] 21bc5331aae15417413c33b148411abd94a5b1dcc8c4cada7d6f6283b49cf2d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 51782d5710f66afd1d967308e5251ff4e2a80813a17bec141232072601fccbc4
[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" "51782d5710f66afd1d967308e5251ff4e2a80813a17bec141232072601fccbc4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/red_black-174257278390b136
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test tests::delete::test_delete_1 ... ok
[INFO] [stdout] test tests::delete::test_delete_2 ... ok
[INFO] [stdout] test tests::delete::test_delete_10 ... ok
[INFO] [stdout] test tests::delete::test_delete_11 ... ok
[INFO] [stdout] test tests::delete::test_delete_6 ... ok
[INFO] [stdout] test tests::delete::test_delete_7 ... ok
[INFO] [stdout] test tests::delete::test_delete_8_left ... ok
[INFO] [stdout] test tests::delete::test_delete_8_right ... ok
[INFO] [stdout] test tests::delete::test_delete_9_right ... ok
[INFO] [stdout] test tests::delete::test_delete_9_left ... ok
[INFO] [stdout] test tests::insert::test_insert_1 ... ok
[INFO] [stdout] test tests::insert::test_insert_2 ... ok
[INFO] [stdout] test tests::insert::test_insert_3 ... ok
[INFO] [stdout] test tests::delete::test_delete_3 ... ok
[INFO] [stdout] test tests::delete::test_delete_5_right ... ok
[INFO] [stdout] test tests::delete::test_delete_5_left ... ok
[INFO] [stdout] test tests::delete::test_delete_4 ... ok
[INFO] [stdout] test tests::insert::test_insert_8 ... ok
[INFO] [stdout] test tests::insert::test_insert_6 ... ok
[INFO] [stdout] test tests::insert::test_insert_7 ... ok
[INFO] [stdout] test tests::insert::test_insert_4 ... ok
[INFO] [stdout] test tests::insert::test_insert_5 ... ok
[INFO] [stdout] test tests::validate::tests::test_validate_2 ... ok
[INFO] [stdout] test tests::validate::tests::test_validate_3 ... ok
[INFO] [stdout] test tests::validate::tests::test_validate_5 ... ok
[INFO] [stdout] test tests::validate::tests::test_validate_7 ... ok
[INFO] [stdout] test tests::validate::tests::test_validate_4 ... ok
[INFO] [stdout] test tests::validate::tests::test_validate_6 ... ok
[INFO] [stdout] test tests::validate::tests::test_validate_1 ... ok
[INFO] [stdout] test tests::test_random_operation ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests red-black
[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" "51782d5710f66afd1d967308e5251ff4e2a80813a17bec141232072601fccbc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51782d5710f66afd1d967308e5251ff4e2a80813a17bec141232072601fccbc4", kill_on_drop: false }`
[INFO] [stdout] 51782d5710f66afd1d967308e5251ff4e2a80813a17bec141232072601fccbc4