[INFO] fetching crate qcell 0.4.2...
[INFO] testing qcell-0.4.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate qcell 0.4.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate qcell 0.4.2 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qcell 0.4.2
[INFO] finished tweaking crates.io crate qcell 0.4.2
[INFO] tweaked toml for crates.io crate qcell 0.4.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a27c42b60946b9478211a7a8bceaef60f93bca95ca8b10e1eb5feb0b1488cc55
[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" "a27c42b60946b9478211a7a8bceaef60f93bca95ca8b10e1eb5feb0b1488cc55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a27c42b60946b9478211a7a8bceaef60f93bca95ca8b10e1eb5feb0b1488cc55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a27c42b60946b9478211a7a8bceaef60f93bca95ca8b10e1eb5feb0b1488cc55", kill_on_drop: false }`
[INFO] [stdout] a27c42b60946b9478211a7a8bceaef60f93bca95ca8b10e1eb5feb0b1488cc55
[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=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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db0ad4a504f3c2d1fc4d2be5b57eb224e7921a6a0aa6e37eb5f189325e26d386
[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" "db0ad4a504f3c2d1fc4d2be5b57eb224e7921a6a0aa6e37eb5f189325e26d386", kill_on_drop: false }`
[INFO] [stderr]    Compiling qcell v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "db0ad4a504f3c2d1fc4d2be5b57eb224e7921a6a0aa6e37eb5f189325e26d386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db0ad4a504f3c2d1fc4d2be5b57eb224e7921a6a0aa6e37eb5f189325e26d386", kill_on_drop: false }`
[INFO] [stdout] db0ad4a504f3c2d1fc4d2be5b57eb224e7921a6a0aa6e37eb5f189325e26d386
[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=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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f193e673a679c31b7627dce7ced7a84609d75578b48236e070038cfe7157abdc
[INFO] running `Command { std: "docker" "start" "-a" "f193e673a679c31b7627dce7ced7a84609d75578b48236e070038cfe7157abdc", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling trybuild v1.0.45
[INFO] [stderr]    Compiling qcell v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.73s
[INFO] running `Command { std: "docker" "inspect" "f193e673a679c31b7627dce7ced7a84609d75578b48236e070038cfe7157abdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f193e673a679c31b7627dce7ced7a84609d75578b48236e070038cfe7157abdc", kill_on_drop: false }`
[INFO] [stdout] f193e673a679c31b7627dce7ced7a84609d75578b48236e070038cfe7157abdc
[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=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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2683cfc780452ad649d185201661ac1496bbce13f0ec3c6859803a925f2b7742
[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" "2683cfc780452ad649d185201661ac1496bbce13f0ec3c6859803a925f2b7742", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/qcell-1f2d76d901625158)
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test lcell::tests::lcell ... ok
[INFO] [stdout] test qcell::tests::qcell_ids ... ok
[INFO] [stdout] test lcell::tests::lcell_unsized ... ok
[INFO] [stdout] test qcell::tests::qcell_sep_ids ... ok
[INFO] [stdout] test qcell::tests::qcell_unsized ... ok
[INFO] [stdout] test tcell::tests::tcell_singleton_3 ... ok
[INFO] [stdout] test tcell::tests::tcell_singleton_try_new ... ok
[INFO] [stdout] test tlcell::tests::tlcell ... ok
[INFO] [stdout] test tlcell::tests::tlcell_singleton_2 ... ok
[INFO] [stdout] test tcell::tests::tcell_unsized ... ok
[INFO] [stdout] test tlcell::tests::tlcell_threads ... ok
[INFO] [stdout] test tlcell::tests::tlcell_singleton_3 ... ok
[INFO] [stdout] test tcell::tests::tcell_singleton_2 ... ok
[INFO] [stdout] test qcell::tests::qcell ... ok
[INFO] [stdout] test tcell::tests::tcell ... ok
[INFO] [stdout] test qcell::tests::qcell_fast_ids ... ok
[INFO] [stdout] test tlcell::tests::tlcell_unsized ... ok
[INFO] [stdout] test lcell::tests::lcell_rw3_2 - should panic ... ok
[INFO] [stdout] test lcell::tests::lcell_rw3_3 - should panic ... ok
[INFO] [stdout] test lcell::tests::lcell_rw2 - should panic ... ok
[INFO] [stdout] test tlcell::tests::tlcell_singleton_1 - should panic ... ok
[INFO] [stdout] test tcell::tests::tcell_threads - should panic ... ok
[INFO] [stdout] test lcell::tests::lcell_rw3_1 - should panic ... ok
[INFO] [stdout] test tcell::tests::tcell_singleton_1 - should panic ... ok
[INFO] [stdout] test tcell::tests::tcell_wait_for_new_in_100_threads ... ok
[INFO] [stdout] test tcell::tests::tcell_wait_for_new_timeout ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests qcell
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name qcell --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-0317e0028b062d74.rlib --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-00ebd81f75d94599.rlib --extern qcell=/opt/rustwide/target/debug/deps/libqcell-29a6f2c0b65d1b99.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-67241b210918a8fb.rlib --extern rustversion=/opt/rustwide/target/debug/deps/librustversion-cc9967e3d7b9fcac.so --extern trybuild=/opt/rustwide/target/debug/deps/libtrybuild-67b982497b94d1fe.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "2683cfc780452ad649d185201661ac1496bbce13f0ec3c6859803a925f2b7742", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2683cfc780452ad649d185201661ac1496bbce13f0ec3c6859803a925f2b7742", kill_on_drop: false }`
[INFO] [stdout] 2683cfc780452ad649d185201661ac1496bbce13f0ec3c6859803a925f2b7742