[INFO] fetching crate loom 0.5.4...
[INFO] testing loom-0.5.4 against 1.59.0 for beta-1.60-1
[INFO] extracting crate loom 0.5.4 into /workspace/builds/worker-100/source
[INFO] validating manifest of crates.io crate loom 0.5.4 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate loom 0.5.4
[INFO] finished tweaking crates.io crate loom 0.5.4
[INFO] tweaked toml for crates.io crate loom 0.5.4 written to /workspace/builds/worker-100/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8f6541514d862245f590b11d154c33550c419e15ed8abf86e1dbbc5ecb38885
[INFO] running `Command { std: "docker" "start" "-a" "b8f6541514d862245f590b11d154c33550c419e15ed8abf86e1dbbc5ecb38885", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8f6541514d862245f590b11d154c33550c419e15ed8abf86e1dbbc5ecb38885", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8f6541514d862245f590b11d154c33550c419e15ed8abf86e1dbbc5ecb38885", kill_on_drop: false }`
[INFO] [stdout] b8f6541514d862245f590b11d154c33550c419e15ed8abf86e1dbbc5ecb38885
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73b3b8bb2dc3c94d00afe6d5bf112f7f19278fe443ea5730425e91bd74554bd2
[INFO] running `Command { std: "docker" "start" "-a" "73b3b8bb2dc3c94d00afe6d5bf112f7f19278fe443ea5730425e91bd74554bd2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling pin-project-lite v0.2.8
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling tracing-core v0.1.22
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling thread_local v1.1.4
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling generator v0.7.0
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling matchers v0.1.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.19
[INFO] [stderr]    Compiling tracing v0.1.31
[INFO] [stderr]    Compiling tracing-subscriber v0.3.9
[INFO] [stderr]    Compiling loom v0.5.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.52s
[INFO] running `Command { std: "docker" "inspect" "73b3b8bb2dc3c94d00afe6d5bf112f7f19278fe443ea5730425e91bd74554bd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73b3b8bb2dc3c94d00afe6d5bf112f7f19278fe443ea5730425e91bd74554bd2", kill_on_drop: false }`
[INFO] [stdout] 73b3b8bb2dc3c94d00afe6d5bf112f7f19278fe443ea5730425e91bd74554bd2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28d2571b7c479e960cd339e6537b12c58d4184d74632e7f1df035ed4d7079284
[INFO] running `Command { std: "docker" "start" "-a" "28d2571b7c479e960cd339e6537b12c58d4184d74632e7f1df035ed4d7079284", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling loom v0.5.4 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `loom`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name atomic_int --edition=2018 tests/atomic_int.rs --error-format=json --json=diagnostic-rendered-ansi,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="default"' -C metadata=49dfb9cacce6140c -C extra-filename=-49dfb9cacce6140c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-0a04e74fc4f21d18.rlib --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-27889a48a6313e2c.rlib --extern generator=/opt/rustwide/target/debug/deps/libgenerator-6e4b4a7a22a9ef86.rlib --extern loom=/opt/rustwide/target/debug/deps/libloom-bf73728d7338023f.rlib --extern scoped_tls=/opt/rustwide/target/debug/deps/libscoped_tls-2c4e069c8dc57c20.rlib --extern tracing=/opt/rustwide/target/debug/deps/libtracing-5547d252e61dd8a6.rlib --extern tracing_subscriber=/opt/rustwide/target/debug/deps/libtracing_subscriber-85b70fa5ee8b2e63.rlib --cap-lints=warn -L native=/opt/rustwide/target/debug/build/generator-6435cd3d60fba455/out` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "28d2571b7c479e960cd339e6537b12c58d4184d74632e7f1df035ed4d7079284", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28d2571b7c479e960cd339e6537b12c58d4184d74632e7f1df035ed4d7079284", kill_on_drop: false }`
[INFO] [stdout] 28d2571b7c479e960cd339e6537b12c58d4184d74632e7f1df035ed4d7079284