[INFO] fetching crate atomic-option 0.1.2...
[INFO] testing atomic-option-0.1.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate atomic-option 0.1.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate atomic-option 0.1.2 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate atomic-option 0.1.2
[INFO] finished tweaking crates.io crate atomic-option 0.1.2
[INFO] tweaked toml for crates.io crate atomic-option 0.1.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aefd8693af183f9d263306836bb2348c67750e39ff79df25fb3f7357fc26e6b0
[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" "aefd8693af183f9d263306836bb2348c67750e39ff79df25fb3f7357fc26e6b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aefd8693af183f9d263306836bb2348c67750e39ff79df25fb3f7357fc26e6b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aefd8693af183f9d263306836bb2348c67750e39ff79df25fb3f7357fc26e6b0", kill_on_drop: false }`
[INFO] [stdout] aefd8693af183f9d263306836bb2348c67750e39ff79df25fb3f7357fc26e6b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44ce347b54cd608a463cba76f899b95b356da4d10c2f5dcd240b4f055f497445
[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" "44ce347b54cd608a463cba76f899b95b356da4d10c2f5dcd240b4f055f497445", kill_on_drop: false }`
[INFO] [stderr]    Compiling atomic-option v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "44ce347b54cd608a463cba76f899b95b356da4d10c2f5dcd240b4f055f497445", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44ce347b54cd608a463cba76f899b95b356da4d10c2f5dcd240b4f055f497445", kill_on_drop: false }`
[INFO] [stdout] 44ce347b54cd608a463cba76f899b95b356da4d10c2f5dcd240b4f055f497445
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] cbe1f7c9c49eb805cd453e23051a10b5a6ec41a888a6b29d56f5d2b05e40fb36
[INFO] running `Command { std: "docker" "start" "-a" "cbe1f7c9c49eb805cd453e23051a10b5a6ec41a888a6b29d56f5d2b05e40fb36", kill_on_drop: false }`
[INFO] [stderr]    Compiling atomic-option v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "cbe1f7c9c49eb805cd453e23051a10b5a6ec41a888a6b29d56f5d2b05e40fb36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbe1f7c9c49eb805cd453e23051a10b5a6ec41a888a6b29d56f5d2b05e40fb36", kill_on_drop: false }`
[INFO] [stdout] cbe1f7c9c49eb805cd453e23051a10b5a6ec41a888a6b29d56f5d2b05e40fb36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 03283e14f63f4dc0acf8180c2e477a130e820bb4f4bc842fcc27c6b14bf8e75d
[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" "03283e14f63f4dc0acf8180c2e477a130e820bb4f4bc842fcc27c6b14bf8e75d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/atomic_option-50023e04600fd152
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests atomic-option
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - AtomicOption<T>::empty (line 53) ... ok
[INFO] [stdout] test src/lib.rs - AtomicOption<T>::new (line 28) ... ok
[INFO] [stdout] test src/lib.rs - AtomicOption<T>::swap (line 88) ... ok
[INFO] [stdout] test src/lib.rs - AtomicOption<T>::replace (line 105) ... ok
[INFO] [stdout] test src/lib.rs - AtomicOption<T>::take (line 70) ... ok
[INFO] [stdout] test src/lib.rs - AtomicOption<T>::try_store (line 132) ... ok
[INFO] [stdout] test src/lib.rs - AtomicOption<T>::spinlock (line 158) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "03283e14f63f4dc0acf8180c2e477a130e820bb4f4bc842fcc27c6b14bf8e75d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03283e14f63f4dc0acf8180c2e477a130e820bb4f4bc842fcc27c6b14bf8e75d", kill_on_drop: false }`
[INFO] [stdout] 03283e14f63f4dc0acf8180c2e477a130e820bb4f4bc842fcc27c6b14bf8e75d