[INFO] fetching crate mimalloc-sys 0.1.6-dev...
[INFO] testing mimalloc-sys-0.1.6-dev against 1.55.0 for beta-1.56-1
[INFO] extracting crate mimalloc-sys 0.1.6-dev into /workspace/builds/worker-71/source
[INFO] validating manifest of crates.io crate mimalloc-sys 0.1.6-dev 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] started tweaking crates.io crate mimalloc-sys 0.1.6-dev
[INFO] finished tweaking crates.io crate mimalloc-sys 0.1.6-dev
[INFO] tweaked toml for crates.io crate mimalloc-sys 0.1.6-dev written to /workspace/builds/worker-71/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "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-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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] fcc1c5b3c1363dca3838f76a4fe3b633b4c8060369e44d41e61da41be6313513
[INFO] running `Command { std: "docker" "start" "-a" "fcc1c5b3c1363dca3838f76a4fe3b633b4c8060369e44d41e61da41be6313513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fcc1c5b3c1363dca3838f76a4fe3b633b4c8060369e44d41e61da41be6313513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcc1c5b3c1363dca3838f76a4fe3b633b4c8060369e44d41e61da41be6313513", kill_on_drop: false }`
[INFO] [stdout] fcc1c5b3c1363dca3838f76a4fe3b633b4c8060369e44d41e61da41be6313513
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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] d2d1a307804977179110580b15970c36e2b0100fcc5108c8c5dcf894def4329d
[INFO] running `Command { std: "docker" "start" "-a" "d2d1a307804977179110580b15970c36e2b0100fcc5108c8c5dcf894def4329d", kill_on_drop: false }`
[INFO] [stderr]    Compiling mimalloc-sys v0.1.6-dev (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.77s
[INFO] running `Command { std: "docker" "inspect" "d2d1a307804977179110580b15970c36e2b0100fcc5108c8c5dcf894def4329d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2d1a307804977179110580b15970c36e2b0100fcc5108c8c5dcf894def4329d", kill_on_drop: false }`
[INFO] [stdout] d2d1a307804977179110580b15970c36e2b0100fcc5108c8c5dcf894def4329d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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] 57b8e5b263d846c2d8d59c5914ecb0a048171cbcc64c521612ae70ac93f02b96
[INFO] running `Command { std: "docker" "start" "-a" "57b8e5b263d846c2d8d59c5914ecb0a048171cbcc64c521612ae70ac93f02b96", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mimalloc-sys v0.1.6-dev (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "57b8e5b263d846c2d8d59c5914ecb0a048171cbcc64c521612ae70ac93f02b96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57b8e5b263d846c2d8d59c5914ecb0a048171cbcc64c521612ae70ac93f02b96", kill_on_drop: false }`
[INFO] [stdout] 57b8e5b263d846c2d8d59c5914ecb0a048171cbcc64c521612ae70ac93f02b96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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] 9095c1b4e9709ec2a67fe89782e59c7ffe669de2d3aaa59737de430ed3e7ee4a
[INFO] running `Command { std: "docker" "start" "-a" "9095c1b4e9709ec2a67fe89782e59c7ffe669de2d3aaa59737de430ed3e7ee4a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mimalloc_sys-e33775a1ff811b5f)
[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] [stderr]      Running tests/override.rs (/opt/rustwide/target/debug/deps/override-5927b0766dca384e)
[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] [stderr]    Doc-tests mimalloc-sys
[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" "9095c1b4e9709ec2a67fe89782e59c7ffe669de2d3aaa59737de430ed3e7ee4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9095c1b4e9709ec2a67fe89782e59c7ffe669de2d3aaa59737de430ed3e7ee4a", kill_on_drop: false }`
[INFO] [stdout] 9095c1b4e9709ec2a67fe89782e59c7ffe669de2d3aaa59737de430ed3e7ee4a