[INFO] fetching crate jack 0.8.2...
[INFO] testing jack-0.8.2 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate jack 0.8.2 into /workspace/builds/worker-33/source
[INFO] validating manifest of crates.io crate jack 0.8.2 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 jack 0.8.2
[INFO] finished tweaking crates.io crate jack 0.8.2
[INFO] tweaked toml for crates.io crate jack 0.8.2 written to /workspace/builds/worker-33/source/Cargo.toml
[INFO] crate crates.io crate jack 0.8.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] 83bb6cc553863e52bba86c8dd1fa311aa1da849880d8dcc7cbd380e0ed8eaad9
[INFO] running `Command { std: "docker" "start" "-a" "83bb6cc553863e52bba86c8dd1fa311aa1da849880d8dcc7cbd380e0ed8eaad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83bb6cc553863e52bba86c8dd1fa311aa1da849880d8dcc7cbd380e0ed8eaad9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83bb6cc553863e52bba86c8dd1fa311aa1da849880d8dcc7cbd380e0ed8eaad9", kill_on_drop: false }`
[INFO] [stdout] 83bb6cc553863e52bba86c8dd1fa311aa1da849880d8dcc7cbd380e0ed8eaad9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] 0a330bf7e2724e5189660c1072c97377bb5162ea9be1376a1d0da3cae4ce014b
[INFO] running `Command { std: "docker" "start" "-a" "0a330bf7e2724e5189660c1072c97377bb5162ea9be1376a1d0da3cae4ce014b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling jack-sys v0.2.2
[INFO] [stderr]    Compiling jack v0.8.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.18s
[INFO] running `Command { std: "docker" "inspect" "0a330bf7e2724e5189660c1072c97377bb5162ea9be1376a1d0da3cae4ce014b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a330bf7e2724e5189660c1072c97377bb5162ea9be1376a1d0da3cae4ce014b", kill_on_drop: false }`
[INFO] [stdout] 0a330bf7e2724e5189660c1072c97377bb5162ea9be1376a1d0da3cae4ce014b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] 978e66f56a199d93c914414a5a9a13bce96b33d1d94df0817fb7ab1b09e52fba
[INFO] running `Command { std: "docker" "start" "-a" "978e66f56a199d93c914414a5a9a13bce96b33d1d94df0817fb7ab1b09e52fba", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling jack v0.8.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.27s
[INFO] running `Command { std: "docker" "inspect" "978e66f56a199d93c914414a5a9a13bce96b33d1d94df0817fb7ab1b09e52fba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "978e66f56a199d93c914414a5a9a13bce96b33d1d94df0817fb7ab1b09e52fba", kill_on_drop: false }`
[INFO] [stdout] 978e66f56a199d93c914414a5a9a13bce96b33d1d94df0817fb7ab1b09e52fba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] a6f94b24ef1be26b2cb2fd4bf1d0a64a46b4e51c245b796f4dd04fb9bc3033ab
[INFO] running `Command { std: "docker" "start" "-a" "a6f94b24ef1be26b2cb2fd4bf1d0a64a46b4e51c245b796f4dd04fb9bc3033ab", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/jack-e95a11aa44235d36)
[INFO] [stdout] 
[INFO] [stdout] running 82 tests
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/jack-e95a11aa44235d36` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `Command { std: "docker" "inspect" "a6f94b24ef1be26b2cb2fd4bf1d0a64a46b4e51c245b796f4dd04fb9bc3033ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6f94b24ef1be26b2cb2fd4bf1d0a64a46b4e51c245b796f4dd04fb9bc3033ab", kill_on_drop: false }`
[INFO] [stdout] a6f94b24ef1be26b2cb2fd4bf1d0a64a46b4e51c245b796f4dd04fb9bc3033ab