[INFO] crate once 0.3.4 is already in cache
[INFO] testing once-0.3.4 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate once 0.3.4 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate once 0.3.4 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate once 0.3.4
[INFO] finished tweaking crates.io crate once 0.3.4
[INFO] tweaked toml for crates.io crate once 0.3.4 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec2404cc0f14e91503a1a1ba735971d176433b1e589dbcb0347c44ae32ae3ef9
[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" "ec2404cc0f14e91503a1a1ba735971d176433b1e589dbcb0347c44ae32ae3ef9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec2404cc0f14e91503a1a1ba735971d176433b1e589dbcb0347c44ae32ae3ef9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec2404cc0f14e91503a1a1ba735971d176433b1e589dbcb0347c44ae32ae3ef9", kill_on_drop: false }`
[INFO] [stdout] ec2404cc0f14e91503a1a1ba735971d176433b1e589dbcb0347c44ae32ae3ef9
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d9bb20933e9cb877ccfd38ac0a13afef35fa9767647ec0543c5b3438aab1e9f
[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" "0d9bb20933e9cb877ccfd38ac0a13afef35fa9767647ec0543c5b3438aab1e9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling once v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "0d9bb20933e9cb877ccfd38ac0a13afef35fa9767647ec0543c5b3438aab1e9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d9bb20933e9cb877ccfd38ac0a13afef35fa9767647ec0543c5b3438aab1e9f", kill_on_drop: false }`
[INFO] [stdout] 0d9bb20933e9cb877ccfd38ac0a13afef35fa9767647ec0543c5b3438aab1e9f
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1e85b6cf0bba85f3a6cbd725557e2007aecd8eab4518f19123f24030a6268ae
[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" "e1e85b6cf0bba85f3a6cbd725557e2007aecd8eab4518f19123f24030a6268ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling once v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "e1e85b6cf0bba85f3a6cbd725557e2007aecd8eab4518f19123f24030a6268ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1e85b6cf0bba85f3a6cbd725557e2007aecd8eab4518f19123f24030a6268ae", kill_on_drop: false }`
[INFO] [stdout] e1e85b6cf0bba85f3a6cbd725557e2007aecd8eab4518f19123f24030a6268ae
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e356fa8d4628cf7a8d1acb5e93a9c8e7887c3d6be2ef6f3a0b5a0be37ad6f873
[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" "e356fa8d4628cf7a8d1acb5e93a9c8e7887c3d6be2ef6f3a0b5a0be37ad6f873", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/once-36d889e1e3636730
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test_hygiene1 ... ok
[INFO] [stdout] test test_hygiene2 ... ok
[INFO] [stdout] test test_run_once_different_fns ... ok
[INFO] [stdout] test test_run_once ... ok
[INFO] [stderr]    Doc-tests once
[INFO] [stdout] test test_run_twice ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - assert_has_not_been_called (line 18) ... ok
[INFO] [stdout] test src/lib.rs - assert_has_not_been_called (line 36) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e356fa8d4628cf7a8d1acb5e93a9c8e7887c3d6be2ef6f3a0b5a0be37ad6f873", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e356fa8d4628cf7a8d1acb5e93a9c8e7887c3d6be2ef6f3a0b5a0be37ad6f873", kill_on_drop: false }`
[INFO] [stdout] e356fa8d4628cf7a8d1acb5e93a9c8e7887c3d6be2ef6f3a0b5a0be37ad6f873