[INFO] fetching crate safe_cell 0.1.1...
[INFO] testing safe_cell-0.1.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate safe_cell 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate safe_cell 0.1.1 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 safe_cell 0.1.1
[INFO] finished tweaking crates.io crate safe_cell 0.1.1
[INFO] tweaked toml for crates.io crate safe_cell 0.1.1 written to /workspace/builds/worker-0/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9a4be0faa161ffed5dec1556eb98301d4bbc1c8e866f2ff0d4a97aef214feed9
[INFO] running `Command { std: "docker" "start" "-a" "9a4be0faa161ffed5dec1556eb98301d4bbc1c8e866f2ff0d4a97aef214feed9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a4be0faa161ffed5dec1556eb98301d4bbc1c8e866f2ff0d4a97aef214feed9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a4be0faa161ffed5dec1556eb98301d4bbc1c8e866f2ff0d4a97aef214feed9", kill_on_drop: false }`
[INFO] [stdout] 9a4be0faa161ffed5dec1556eb98301d4bbc1c8e866f2ff0d4a97aef214feed9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 5430c2226e419b7b390c7a9194525dec82e89f09936a6f73c690f7a08344c1de
[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" "5430c2226e419b7b390c7a9194525dec82e89f09936a6f73c690f7a08344c1de", kill_on_drop: false }`
[INFO] [stderr]    Compiling safe_cell v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "5430c2226e419b7b390c7a9194525dec82e89f09936a6f73c690f7a08344c1de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5430c2226e419b7b390c7a9194525dec82e89f09936a6f73c690f7a08344c1de", kill_on_drop: false }`
[INFO] [stdout] 5430c2226e419b7b390c7a9194525dec82e89f09936a6f73c690f7a08344c1de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stdout] cb30df7c068e6c4ca1e9aaecfd5bebe5b8bb02781a7783cab6d0924f91651176
[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" "cb30df7c068e6c4ca1e9aaecfd5bebe5b8bb02781a7783cab6d0924f91651176", kill_on_drop: false }`
[INFO] [stderr]    Compiling safe_cell v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "cb30df7c068e6c4ca1e9aaecfd5bebe5b8bb02781a7783cab6d0924f91651176", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb30df7c068e6c4ca1e9aaecfd5bebe5b8bb02781a7783cab6d0924f91651176", kill_on_drop: false }`
[INFO] [stdout] cb30df7c068e6c4ca1e9aaecfd5bebe5b8bb02781a7783cab6d0924f91651176
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 726df2cf398e762c82a976248e267b97526378d1af3e460f67eb1da20981963d
[INFO] running `Command { std: "docker" "start" "-a" "726df2cf398e762c82a976248e267b97526378d1af3e460f67eb1da20981963d", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/safe_cell-b4f150b29eb731dc)
[INFO] [stdout] test tests::basic ... ok
[INFO] [stderr]    Doc-tests safe_cell
[INFO] [stdout] test tests::share ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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" "726df2cf398e762c82a976248e267b97526378d1af3e460f67eb1da20981963d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "726df2cf398e762c82a976248e267b97526378d1af3e460f67eb1da20981963d", kill_on_drop: false }`
[INFO] [stdout] 726df2cf398e762c82a976248e267b97526378d1af3e460f67eb1da20981963d