[INFO] fetching crate dangerous_option 0.2.0...
[INFO] testing dangerous_option-0.2.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate dangerous_option 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate dangerous_option 0.2.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dangerous_option 0.2.0
[INFO] finished tweaking crates.io crate dangerous_option 0.2.0
[INFO] tweaked toml for crates.io crate dangerous_option 0.2.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 21dfc0207700514b5c8d3f484c5981b1a6cc9573f72884d0b6e2ede537f5e582
[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" "21dfc0207700514b5c8d3f484c5981b1a6cc9573f72884d0b6e2ede537f5e582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21dfc0207700514b5c8d3f484c5981b1a6cc9573f72884d0b6e2ede537f5e582", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21dfc0207700514b5c8d3f484c5981b1a6cc9573f72884d0b6e2ede537f5e582", kill_on_drop: false }`
[INFO] [stdout] 21dfc0207700514b5c8d3f484c5981b1a6cc9573f72884d0b6e2ede537f5e582
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7e1d92dd82412a3a281863e5a3ff2b1dd614dd1ad93300aaade6f38bdf78d27
[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" "d7e1d92dd82412a3a281863e5a3ff2b1dd614dd1ad93300aaade6f38bdf78d27", kill_on_drop: false }`
[INFO] [stderr]    Compiling dangerous_option v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "d7e1d92dd82412a3a281863e5a3ff2b1dd614dd1ad93300aaade6f38bdf78d27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7e1d92dd82412a3a281863e5a3ff2b1dd614dd1ad93300aaade6f38bdf78d27", kill_on_drop: false }`
[INFO] [stdout] d7e1d92dd82412a3a281863e5a3ff2b1dd614dd1ad93300aaade6f38bdf78d27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca77a46058f873edd1bb855c3bd46d776b87e3f35b5d60cc495982b8bdeecbe9
[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" "ca77a46058f873edd1bb855c3bd46d776b87e3f35b5d60cc495982b8bdeecbe9", kill_on_drop: false }`
[INFO] [stderr]    Compiling dangerous_option v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "ca77a46058f873edd1bb855c3bd46d776b87e3f35b5d60cc495982b8bdeecbe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca77a46058f873edd1bb855c3bd46d776b87e3f35b5d60cc495982b8bdeecbe9", kill_on_drop: false }`
[INFO] [stdout] ca77a46058f873edd1bb855c3bd46d776b87e3f35b5d60cc495982b8bdeecbe9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-01-01" "test" "--frozen", 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] ef16e921f795360aa36b9ab9b543710406859e930eeeb95694de1e2f43412c7c
[INFO] running `Command { std: "docker" "start" "-a" "ef16e921f795360aa36b9ab9b543710406859e930eeeb95694de1e2f43412c7c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dangerous_option-a7da5e61dab1ccf5
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::success ... ok
[INFO] [stderr]    Doc-tests dangerous_option
[INFO] [stdout] test tests::panic2 ... ok
[INFO] [stdout] test tests::panic3 ... ok
[INFO] [stdout] test tests::panic1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ef16e921f795360aa36b9ab9b543710406859e930eeeb95694de1e2f43412c7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef16e921f795360aa36b9ab9b543710406859e930eeeb95694de1e2f43412c7c", kill_on_drop: false }`
[INFO] [stdout] ef16e921f795360aa36b9ab9b543710406859e930eeeb95694de1e2f43412c7c