[INFO] cloning repository https://github.com/ImprobabilityCast/rbtree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ImprobabilityCast/rbtree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImprobabilityCast%2Frbtree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImprobabilityCast%2Frbtree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ad2e801c674a760729f052054e472ab6cbae1075
[INFO] testing ImprobabilityCast/rbtree against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImprobabilityCast%2Frbtree" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ImprobabilityCast/rbtree on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/.cargo/config
[INFO] started tweaking git repo https://github.com/ImprobabilityCast/rbtree
[INFO] finished tweaking git repo https://github.com/ImprobabilityCast/rbtree
[INFO] tweaked toml for git repo https://github.com/ImprobabilityCast/rbtree written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ImprobabilityCast/rbtree already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--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-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ffa3582920b66024b06c2ed9d2259d4bc90fef6a95a7d651123ef2b1d10b4de8
[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" "ffa3582920b66024b06c2ed9d2259d4bc90fef6a95a7d651123ef2b1d10b4de8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ffa3582920b66024b06c2ed9d2259d4bc90fef6a95a7d651123ef2b1d10b4de8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffa3582920b66024b06c2ed9d2259d4bc90fef6a95a7d651123ef2b1d10b4de8", kill_on_drop: false }`
[INFO] [stdout] ffa3582920b66024b06c2ed9d2259d4bc90fef6a95a7d651123ef2b1d10b4de8
[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=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f41fb15437fc847627e89240834e7528cd003d18f545bf70773219f4510ae75
[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" "1f41fb15437fc847627e89240834e7528cd003d18f545bf70773219f4510ae75", kill_on_drop: false }`
[INFO] [stderr]    Compiling rbtree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "1f41fb15437fc847627e89240834e7528cd003d18f545bf70773219f4510ae75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f41fb15437fc847627e89240834e7528cd003d18f545bf70773219f4510ae75", kill_on_drop: false }`
[INFO] [stdout] 1f41fb15437fc847627e89240834e7528cd003d18f545bf70773219f4510ae75
[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=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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] 8b542310583a4fd9615fb5b07de2b5834a5639ccd5cfdb834697980fadde6c59
[INFO] running `Command { std: "docker" "start" "-a" "8b542310583a4fd9615fb5b07de2b5834a5639ccd5cfdb834697980fadde6c59", kill_on_drop: false }`
[INFO] [stderr]    Compiling rbtree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "8b542310583a4fd9615fb5b07de2b5834a5639ccd5cfdb834697980fadde6c59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b542310583a4fd9615fb5b07de2b5834a5639ccd5cfdb834697980fadde6c59", kill_on_drop: false }`
[INFO] [stdout] 8b542310583a4fd9615fb5b07de2b5834a5639ccd5cfdb834697980fadde6c59
[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=forbid" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ebd903a636a1be6c08e3ad41d4fb7035e8e7a47eaf84fcd0764764c739ac30a6
[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" "ebd903a636a1be6c08e3ad41d4fb7035e8e7a47eaf84fcd0764764c739ac30a6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] [stdout] running 24 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rbtree-53f09b4e48dccf0f)
[INFO] [stdout] test test::test_ctor_empty ... ok
[INFO] [stdout] test test::test_8 ... ok
[INFO] [stdout] test test::test_20 ... ok
[INFO] [stdout] test test::test_insert_7 ... ok
[INFO] [stdout] test test::test_double_red_4 ... ok
[INFO] [stdout] test test::test_fix_left_3 ... ok
[INFO] [stdout] test test::test_big ... ok
[INFO] [stdout] test test::test_bst_remove ... ok
[INFO] [stdout] test test::test_fix_left_5 ... ok
[INFO] [stdout] test test::test_fix_right_5 ... ok
[INFO] [stdout] test test::test_insert_3 ... ok
[INFO] [stdout] test test::test_insert_1 ... ok
[INFO] [stdout] test test::test_insert_2 ... ok
[INFO] [stdout] test test::test_double_red_2 ... ok
[INFO] [stdout] test test::test_double_red_1 ... ok
[INFO] [stdout] test test::test_double_red_3 ... ok
[INFO] [stdout] test test::test_remove_1_child ... ok
[INFO] [stdout] test test::test_remove_leaf ... ok
[INFO] [stdout] test test::test_remove_7 ... ok
[INFO] [stdout] test test::test_remove_big ... ok
[INFO] [stdout] test test::test_remove_1_child_2 ... ok
[INFO] [stdout] test test::test_remove_3 ... ok
[INFO] [stdout] test test::test_remove_root ... ok
[INFO] [stderr]    Doc-tests rbtree
[INFO] [stdout] test test::test_even_bigger ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[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" "ebd903a636a1be6c08e3ad41d4fb7035e8e7a47eaf84fcd0764764c739ac30a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebd903a636a1be6c08e3ad41d4fb7035e8e7a47eaf84fcd0764764c739ac30a6", kill_on_drop: false }`
[INFO] [stdout] ebd903a636a1be6c08e3ad41d4fb7035e8e7a47eaf84fcd0764764c739ac30a6