[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 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FImprobabilityCast%2Frbtree" "/workspace/builds/worker-22/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-22/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ImprobabilityCast/rbtree on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-22/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-22/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" "+1.55.0" "fetch" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2e79e9d5629a3c3f64f42924135ff4ac97be393c5ba0034acbd6611aa65d7dba
[INFO] running `Command { std: "docker" "start" "-a" "2e79e9d5629a3c3f64f42924135ff4ac97be393c5ba0034acbd6611aa65d7dba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e79e9d5629a3c3f64f42924135ff4ac97be393c5ba0034acbd6611aa65d7dba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e79e9d5629a3c3f64f42924135ff4ac97be393c5ba0034acbd6611aa65d7dba", kill_on_drop: false }`
[INFO] [stdout] 2e79e9d5629a3c3f64f42924135ff4ac97be393c5ba0034acbd6611aa65d7dba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5cef3cc232663bc37b3cb88b051bab5b9475b3e671d76fa338e810a6ecc77859
[INFO] running `Command { std: "docker" "start" "-a" "5cef3cc232663bc37b3cb88b051bab5b9475b3e671d76fa338e810a6ecc77859", kill_on_drop: false }`
[INFO] [stderr]    Compiling rbtree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "5cef3cc232663bc37b3cb88b051bab5b9475b3e671d76fa338e810a6ecc77859", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cef3cc232663bc37b3cb88b051bab5b9475b3e671d76fa338e810a6ecc77859", kill_on_drop: false }`
[INFO] [stdout] 5cef3cc232663bc37b3cb88b051bab5b9475b3e671d76fa338e810a6ecc77859
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c17bbc0f21ae3ea9d87ffd670001c018e93edd87a49d227f999bdc02d0a2474c
[INFO] running `Command { std: "docker" "start" "-a" "c17bbc0f21ae3ea9d87ffd670001c018e93edd87a49d227f999bdc02d0a2474c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rbtree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `Command { std: "docker" "inspect" "c17bbc0f21ae3ea9d87ffd670001c018e93edd87a49d227f999bdc02d0a2474c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c17bbc0f21ae3ea9d87ffd670001c018e93edd87a49d227f999bdc02d0a2474c", kill_on_drop: false }`
[INFO] [stdout] c17bbc0f21ae3ea9d87ffd670001c018e93edd87a49d227f999bdc02d0a2474c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f0b4009996418a1a2417afee0fcf6a92403eadb5e9fda44afdbd6f26f4000509
[INFO] running `Command { std: "docker" "start" "-a" "f0b4009996418a1a2417afee0fcf6a92403eadb5e9fda44afdbd6f26f4000509", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rbtree-705fc1f6a9e535ec)
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test test::test_20 ... ok
[INFO] [stdout] test test::test_8 ... ok
[INFO] [stdout] test test::test_bst_remove ... ok
[INFO] [stdout] test test::test_big ... ok
[INFO] [stdout] test test::test_ctor_empty ... ok
[INFO] [stdout] test test::test_double_red_1 ... ok
[INFO] [stdout] test test::test_double_red_2 ... ok
[INFO] [stdout] test test::test_double_red_3 ... ok
[INFO] [stdout] test test::test_double_red_4 ... ok
[INFO] [stdout] test test::test_fix_left_3 ... 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_2 ... ok
[INFO] [stdout] test test::test_insert_3 ... ok
[INFO] [stdout] test test::test_insert_7 ... ok
[INFO] [stdout] test test::test_insert_1 ... ok
[INFO] [stdout] test test::test_remove_1_child ... ok
[INFO] [stdout] test test::test_remove_1_child_2 ... ok
[INFO] [stdout] test test::test_remove_leaf ... ok
[INFO] [stdout] test test::test_remove_3 ... ok
[INFO] [stdout] test test::test_remove_7 ... ok
[INFO] [stdout] test test::test_remove_big ... 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 0.10s
[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" "f0b4009996418a1a2417afee0fcf6a92403eadb5e9fda44afdbd6f26f4000509", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0b4009996418a1a2417afee0fcf6a92403eadb5e9fda44afdbd6f26f4000509", kill_on_drop: false }`
[INFO] [stdout] f0b4009996418a1a2417afee0fcf6a92403eadb5e9fda44afdbd6f26f4000509