[INFO] fetching crate pro_prelude 3.0.0-rc2...
[INFO] testing pro_prelude-3.0.0-rc2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate pro_prelude 3.0.0-rc2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate pro_prelude 3.0.0-rc2 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 pro_prelude 3.0.0-rc2
[INFO] finished tweaking crates.io crate pro_prelude 3.0.0-rc2
[INFO] tweaked toml for crates.io crate pro_prelude 3.0.0-rc2 written to /workspace/builds/worker-6/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-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" "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] [stdout] 174ea5aee0a7abe9e66c2bdd43772b53eb40917c5b7499ff12ecb714eeef5e33
[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" "174ea5aee0a7abe9e66c2bdd43772b53eb40917c5b7499ff12ecb714eeef5e33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "174ea5aee0a7abe9e66c2bdd43772b53eb40917c5b7499ff12ecb714eeef5e33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "174ea5aee0a7abe9e66c2bdd43772b53eb40917c5b7499ff12ecb714eeef5e33", kill_on_drop: false }`
[INFO] [stdout] 174ea5aee0a7abe9e66c2bdd43772b53eb40917c5b7499ff12ecb714eeef5e33
[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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 77e6f0c81e6bd4f68da1d59b79f7442962e4c5163ec1fe7e433c68170e866ea7
[INFO] running `Command { std: "docker" "start" "-a" "77e6f0c81e6bd4f68da1d59b79f7442962e4c5163ec1fe7e433c68170e866ea7", kill_on_drop: false }`
[INFO] [stderr]    Compiling pro_prelude v3.0.0-rc2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "77e6f0c81e6bd4f68da1d59b79f7442962e4c5163ec1fe7e433c68170e866ea7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77e6f0c81e6bd4f68da1d59b79f7442962e4c5163ec1fe7e433c68170e866ea7", kill_on_drop: false }`
[INFO] [stdout] 77e6f0c81e6bd4f68da1d59b79f7442962e4c5163ec1fe7e433c68170e866ea7
[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" "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] d62c53faa1f1701b044ab927ca4dea153fe3729947f74269b8c4c4ea9c796f7c
[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" "d62c53faa1f1701b044ab927ca4dea153fe3729947f74269b8c4c4ea9c796f7c", kill_on_drop: false }`
[INFO] [stderr]    Compiling pro_prelude v3.0.0-rc2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "d62c53faa1f1701b044ab927ca4dea153fe3729947f74269b8c4c4ea9c796f7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d62c53faa1f1701b044ab927ca4dea153fe3729947f74269b8c4c4ea9c796f7c", kill_on_drop: false }`
[INFO] [stdout] d62c53faa1f1701b044ab927ca4dea153fe3729947f74269b8c4c4ea9c796f7c
[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" "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] 2cd9babb3eb2c7ca0f148e78c1448dad789a387a34777d31239ebf452eec29e9
[INFO] running `Command { std: "docker" "start" "-a" "2cd9babb3eb2c7ca0f148e78c1448dad789a387a34777d31239ebf452eec29e9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pro_prelude-5557927d83c8b9fd)
[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] [stderr]    Doc-tests pro_prelude
[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" "2cd9babb3eb2c7ca0f148e78c1448dad789a387a34777d31239ebf452eec29e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cd9babb3eb2c7ca0f148e78c1448dad789a387a34777d31239ebf452eec29e9", kill_on_drop: false }`
[INFO] [stdout] 2cd9babb3eb2c7ca0f148e78c1448dad789a387a34777d31239ebf452eec29e9