[INFO] fetching crate stackarc 0.1.0...
[INFO] testing stackarc-0.1.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate stackarc 0.1.0 into /workspace/builds/worker-114/source
[INFO] validating manifest of crates.io crate stackarc 0.1.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stackarc 0.1.0
[INFO] finished tweaking crates.io crate stackarc 0.1.0
[INFO] tweaked toml for crates.io crate stackarc 0.1.0 written to /workspace/builds/worker-114/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6475877e4054a54a25abfd9c86a24394961baff7acb3ca8513d6a0a37e9bb4f1
[INFO] running `Command { std: "docker" "start" "-a" "6475877e4054a54a25abfd9c86a24394961baff7acb3ca8513d6a0a37e9bb4f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6475877e4054a54a25abfd9c86a24394961baff7acb3ca8513d6a0a37e9bb4f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6475877e4054a54a25abfd9c86a24394961baff7acb3ca8513d6a0a37e9bb4f1", kill_on_drop: false }`
[INFO] [stdout] 6475877e4054a54a25abfd9c86a24394961baff7acb3ca8513d6a0a37e9bb4f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 091d2714aa2a4c1b1e7b03d5af769acc9779fb197d30f66ee2f3935885a4ee06
[INFO] running `Command { std: "docker" "start" "-a" "091d2714aa2a4c1b1e7b03d5af769acc9779fb197d30f66ee2f3935885a4ee06", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling stackarc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "091d2714aa2a4c1b1e7b03d5af769acc9779fb197d30f66ee2f3935885a4ee06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "091d2714aa2a4c1b1e7b03d5af769acc9779fb197d30f66ee2f3935885a4ee06", kill_on_drop: false }`
[INFO] [stdout] 091d2714aa2a4c1b1e7b03d5af769acc9779fb197d30f66ee2f3935885a4ee06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6e4ba364c6043f18bdc34648e177bcf16c331bdb48bce4613ad990b08a2ea75
[INFO] running `Command { std: "docker" "start" "-a" "f6e4ba364c6043f18bdc34648e177bcf16c331bdb48bce4613ad990b08a2ea75", kill_on_drop: false }`
[INFO] [stderr]    Compiling stackarc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "f6e4ba364c6043f18bdc34648e177bcf16c331bdb48bce4613ad990b08a2ea75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6e4ba364c6043f18bdc34648e177bcf16c331bdb48bce4613ad990b08a2ea75", kill_on_drop: false }`
[INFO] [stdout] f6e4ba364c6043f18bdc34648e177bcf16c331bdb48bce4613ad990b08a2ea75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f273da15e7a6d52f03a366a5cd14c04fc9fb1332e65f3373fbb4c6866734cbe4
[INFO] running `Command { std: "docker" "start" "-a" "f273da15e7a6d52f03a366a5cd14c04fc9fb1332e65f3373fbb4c6866734cbe4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/stackarc-690e10d1e4f3966a)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::a ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests stackarc
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - ArcInner (line 23) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.32s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f273da15e7a6d52f03a366a5cd14c04fc9fb1332e65f3373fbb4c6866734cbe4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f273da15e7a6d52f03a366a5cd14c04fc9fb1332e65f3373fbb4c6866734cbe4", kill_on_drop: false }`
[INFO] [stdout] f273da15e7a6d52f03a366a5cd14c04fc9fb1332e65f3373fbb4c6866734cbe4