[INFO] fetching crate lock-free-stack 0.1.1...
[INFO] testing lock-free-stack-0.1.1 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] extracting crate lock-free-stack 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate lock-free-stack 0.1.1 on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lock-free-stack 0.1.1
[INFO] finished tweaking crates.io crate lock-free-stack 0.1.1
[INFO] tweaked toml for crates.io crate lock-free-stack 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "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" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5746d7bb8a90e4a15238d4e716071f0c5cda8c868314170e63e7a219beaf0b3
[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" "c5746d7bb8a90e4a15238d4e716071f0c5cda8c868314170e63e7a219beaf0b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5746d7bb8a90e4a15238d4e716071f0c5cda8c868314170e63e7a219beaf0b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5746d7bb8a90e4a15238d4e716071f0c5cda8c868314170e63e7a219beaf0b3", kill_on_drop: false }`
[INFO] [stdout] c5746d7bb8a90e4a15238d4e716071f0c5cda8c868314170e63e7a219beaf0b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e89e8c480b01441579a1d6727380b03a4043119748d0a9bc3d375c46f2f2047
[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" "5e89e8c480b01441579a1d6727380b03a4043119748d0a9bc3d375c46f2f2047", kill_on_drop: false }`
[INFO] [stderr]    Compiling lock-free-stack v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "5e89e8c480b01441579a1d6727380b03a4043119748d0a9bc3d375c46f2f2047", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e89e8c480b01441579a1d6727380b03a4043119748d0a9bc3d375c46f2f2047", kill_on_drop: false }`
[INFO] [stdout] 5e89e8c480b01441579a1d6727380b03a4043119748d0a9bc3d375c46f2f2047
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb9dcc78a73e53b2f685f4c4d4c96fc3cf16ca0ef4fb4ad1c4ca17992995fc07
[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" "eb9dcc78a73e53b2f685f4c4d4c96fc3cf16ca0ef4fb4ad1c4ca17992995fc07", kill_on_drop: false }`
[INFO] [stderr]    Compiling lock-free-stack v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "eb9dcc78a73e53b2f685f4c4d4c96fc3cf16ca0ef4fb4ad1c4ca17992995fc07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb9dcc78a73e53b2f685f4c4d4c96fc3cf16ca0ef4fb4ad1c4ca17992995fc07", kill_on_drop: false }`
[INFO] [stdout] eb9dcc78a73e53b2f685f4c4d4c96fc3cf16ca0ef4fb4ad1c4ca17992995fc07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 098d9bbe26326e96e23895142f2870ee9cc51fc7bc62956670a1f08072a37023
[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" "098d9bbe26326e96e23895142f2870ee9cc51fc7bc62956670a1f08072a37023", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lock_free_stack-22048bed159f40aa
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lock_free_stack-a5565eed9b0df06c
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test test_add_returns_one_size_when_adding_to_an_empty_stack ... ok
[INFO] [stdout] test test_add_returns_size_two_when_adding_to_a_stack_with_one_element ... ok
[INFO] [stdout] test test_remove_all_returns_a_one_item_iterator_for_stack_with_one_item ... ok
[INFO] [stdout] test test_remove_all_returns_an_empty_iterator_for_empty_stack ... ok
[INFO] [stdout] test test_size_returns_size_two_for_stack_with_two_elements ... ok
[INFO] [stdout] test test_size_returns_zero_size_for_empty_stack ... ok
[INFO] [stdout] test test_size_returns_size_one_for_stack_with_one_element ... ok
[INFO] [stdout] test test_size_returns_zero_size_after_removing_all ... ok
[INFO] [stderr]    Doc-tests lock-free-stack
[INFO] [stdout] test test_add_in_threads_remove_in_current ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "098d9bbe26326e96e23895142f2870ee9cc51fc7bc62956670a1f08072a37023", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "098d9bbe26326e96e23895142f2870ee9cc51fc7bc62956670a1f08072a37023", kill_on_drop: false }`
[INFO] [stdout] 098d9bbe26326e96e23895142f2870ee9cc51fc7bc62956670a1f08072a37023