[INFO] cloning repository https://github.com/mattgreen/gc-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mattgreen/gc-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattgreen%2Fgc-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattgreen%2Fgc-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dfccd7154878e2c6954e4da39d708c7d7cd26704
[INFO] testing mattgreen/gc-playground against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattgreen%2Fgc-playground" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mattgreen/gc-playground on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mattgreen/gc-playground
[INFO] finished tweaking git repo https://github.com/mattgreen/gc-playground
[INFO] tweaked toml for git repo https://github.com/mattgreen/gc-playground written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/mattgreen/gc-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 319485f2507511371ab15ee6bcb38ff2edb7eaff605501bd52562c287f0e42f2
[INFO] running `Command { std: "docker" "start" "-a" "319485f2507511371ab15ee6bcb38ff2edb7eaff605501bd52562c287f0e42f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "319485f2507511371ab15ee6bcb38ff2edb7eaff605501bd52562c287f0e42f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "319485f2507511371ab15ee6bcb38ff2edb7eaff605501bd52562c287f0e42f2", kill_on_drop: false }`
[INFO] [stdout] 319485f2507511371ab15ee6bcb38ff2edb7eaff605501bd52562c287f0e42f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7820362a186cf4dbde5bfb35eaaa98506d37425d8aa257a2deda9bf8eb852e2
[INFO] running `Command { std: "docker" "start" "-a" "a7820362a186cf4dbde5bfb35eaaa98506d37425d8aa257a2deda9bf8eb852e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling gc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "a7820362a186cf4dbde5bfb35eaaa98506d37425d8aa257a2deda9bf8eb852e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7820362a186cf4dbde5bfb35eaaa98506d37425d8aa257a2deda9bf8eb852e2", kill_on_drop: false }`
[INFO] [stdout] a7820362a186cf4dbde5bfb35eaaa98506d37425d8aa257a2deda9bf8eb852e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af7d49827e25868d0a36589829518f81bfc362fa1cb6948a2a767fba4e3e509b
[INFO] running `Command { std: "docker" "start" "-a" "af7d49827e25868d0a36589829518f81bfc362fa1cb6948a2a767fba4e3e509b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling gc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.45s
[INFO] running `Command { std: "docker" "inspect" "af7d49827e25868d0a36589829518f81bfc362fa1cb6948a2a767fba4e3e509b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af7d49827e25868d0a36589829518f81bfc362fa1cb6948a2a767fba4e3e509b", kill_on_drop: false }`
[INFO] [stdout] af7d49827e25868d0a36589829518f81bfc362fa1cb6948a2a767fba4e3e509b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fb76efbf774cd9b1d3b11c7898d8242e8587dc1034e2e657ddeebb3c585dcd83
[INFO] running `Command { std: "docker" "start" "-a" "fb76efbf774cd9b1d3b11c7898d8242e8587dc1034e2e657ddeebb3c585dcd83", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/gc-753c146249b2c700)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::test_allocate ... ok
[INFO] [stdout] test tests::test_rooted_gcs_survive ... ok
[INFO] [stdout] test tests::test_roots_survive_collects ... ok
[INFO] [stdout] test tests::test_collects_cycle ... ok
[INFO] [stdout] test tests::test_unrooted_gcs_do_not_survive ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fb76efbf774cd9b1d3b11c7898d8242e8587dc1034e2e657ddeebb3c585dcd83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb76efbf774cd9b1d3b11c7898d8242e8587dc1034e2e657ddeebb3c585dcd83", kill_on_drop: false }`
[INFO] [stdout] fb76efbf774cd9b1d3b11c7898d8242e8587dc1034e2e657ddeebb3c585dcd83