[INFO] fetching crate loom 0.5.3...
[INFO] testing loom-0.5.3 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate loom 0.5.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate loom 0.5.3 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate loom 0.5.3
[INFO] finished tweaking crates.io crate loom 0.5.3
[INFO] tweaked toml for crates.io crate loom 0.5.3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded matchers v0.1.0
[INFO] [stderr]   Downloaded sharded-slab v0.1.4
[INFO] [stderr]   Downloaded generator v0.7.0
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b45581082563f4c88b7960dfdcaae0cd222741e8b84f8de61b838f9fa8719a7d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b45581082563f4c88b7960dfdcaae0cd222741e8b84f8de61b838f9fa8719a7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b45581082563f4c88b7960dfdcaae0cd222741e8b84f8de61b838f9fa8719a7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b45581082563f4c88b7960dfdcaae0cd222741e8b84f8de61b838f9fa8719a7d", kill_on_drop: false }`
[INFO] [stdout] b45581082563f4c88b7960dfdcaae0cd222741e8b84f8de61b838f9fa8719a7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6501958dcdab07ba65348feeee97d167cb1bebaa14cdb820df3a1211611ff965
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6501958dcdab07ba65348feeee97d167cb1bebaa14cdb820df3a1211611ff965", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling tracing-core v0.1.21
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling generator v0.7.0
[INFO] [stderr]    Compiling syn v1.0.82
[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 v0.1.18
[INFO] [stderr]    Compiling tracing v0.1.29
[INFO] [stderr]    Compiling tracing-subscriber v0.3.3
[INFO] [stderr]    Compiling loom v0.5.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `obj`
[INFO] [stdout]   --> src/alloc.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     obj: rt::Allocation,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.59s
[INFO] running `Command { std: "docker" "inspect" "6501958dcdab07ba65348feeee97d167cb1bebaa14cdb820df3a1211611ff965", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6501958dcdab07ba65348feeee97d167cb1bebaa14cdb820df3a1211611ff965", kill_on_drop: false }`
[INFO] [stdout] 6501958dcdab07ba65348feeee97d167cb1bebaa14cdb820df3a1211611ff965
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df75fe4b036a192cc40fd07ca0999d6b7524d68dbb9901d762e89383b0f77941
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "df75fe4b036a192cc40fd07ca0999d6b7524d68dbb9901d762e89383b0f77941", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.18
[INFO] [stderr]    Compiling futures-util v0.3.18
[INFO] [stderr]    Compiling futures-macro v0.3.18
[INFO] [stdout] warning: field is never read: `obj`
[INFO] [stdout]   --> src/alloc.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     obj: rt::Allocation,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling loom v0.5.3 (/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 --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="default"' -C metadata=b6a1bbbb43c31c15 -C extra-filename=-b6a1bbbb43c31c15 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-90e3626e3c41eec3.rlib --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-e75264eb126856e6.rlib --extern generator=/opt/rustwide/target/debug/deps/libgenerator-2d436de29dc3b080.rlib --extern loom=/opt/rustwide/target/debug/deps/libloom-ac8f74f39c1e08f3.rlib --extern scoped_tls=/opt/rustwide/target/debug/deps/libscoped_tls-29faee4d9ff28116.rlib --extern tracing=/opt/rustwide/target/debug/deps/libtracing-8ddba614c74d9f79.rlib --extern tracing_subscriber=/opt/rustwide/target/debug/deps/libtracing_subscriber-7d2d8ccdc7f257d4.rlib --cap-lints=forbid -L native=/opt/rustwide/target/debug/build/generator-ad913fece87a5105/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" "df75fe4b036a192cc40fd07ca0999d6b7524d68dbb9901d762e89383b0f77941", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df75fe4b036a192cc40fd07ca0999d6b7524d68dbb9901d762e89383b0f77941", kill_on_drop: false }`
[INFO] [stdout] df75fe4b036a192cc40fd07ca0999d6b7524d68dbb9901d762e89383b0f77941