[INFO] fetching crate rut 0.4.2...
[INFO] testing rut-0.4.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate rut 0.4.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate rut 0.4.2 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 rut 0.4.2
[INFO] finished tweaking crates.io crate rut 0.4.2
[INFO] tweaked toml for crates.io crate rut 0.4.2 written to /workspace/builds/worker-5/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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 18473e6ffecc07de540788d9be218f0ebfe6e4a0ff55d83f5c6fe0f488b7cdad
[INFO] running `Command { std: "docker" "start" "-a" "18473e6ffecc07de540788d9be218f0ebfe6e4a0ff55d83f5c6fe0f488b7cdad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18473e6ffecc07de540788d9be218f0ebfe6e4a0ff55d83f5c6fe0f488b7cdad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18473e6ffecc07de540788d9be218f0ebfe6e4a0ff55d83f5c6fe0f488b7cdad", kill_on_drop: false }`
[INFO] [stdout] 18473e6ffecc07de540788d9be218f0ebfe6e4a0ff55d83f5c6fe0f488b7cdad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 16a09ef00ddc5d4522fdc0366c04f036be79b486c76700c2034bbdb14b92d50d
[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" "16a09ef00ddc5d4522fdc0366c04f036be79b486c76700c2034bbdb14b92d50d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rut v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "16a09ef00ddc5d4522fdc0366c04f036be79b486c76700c2034bbdb14b92d50d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16a09ef00ddc5d4522fdc0366c04f036be79b486c76700c2034bbdb14b92d50d", kill_on_drop: false }`
[INFO] [stdout] 16a09ef00ddc5d4522fdc0366c04f036be79b486c76700c2034bbdb14b92d50d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 73be411ba4b1a388e4115ed689d37474e378d9ce1d9ec27288c873137f4639b2
[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" "73be411ba4b1a388e4115ed689d37474e378d9ce1d9ec27288c873137f4639b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rut v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "73be411ba4b1a388e4115ed689d37474e378d9ce1d9ec27288c873137f4639b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73be411ba4b1a388e4115ed689d37474e378d9ce1d9ec27288c873137f4639b2", kill_on_drop: false }`
[INFO] [stdout] 73be411ba4b1a388e4115ed689d37474e378d9ce1d9ec27288c873137f4639b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stdout] 5027bfb92d634b17a17a3be8a17a56ac5ed6e5b0346fb6e895f1f54ffff8c70e
[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" "5027bfb92d634b17a17a3be8a17a56ac5ed6e5b0346fb6e895f1f54ffff8c70e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.25s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rut-9c462087beeb5cc5)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test tests::first_before_surrogates ... ok
[INFO] [stdout] test tests::first_valid_2 ... ok
[INFO] [stdout] test tests::invalid_bytes ... ok
[INFO] [stdout] test tests::last_valid_1 ... ok
[INFO] [stdout] test tests::last_valid_4 ... ok
[INFO] [stdout] test tests::last_valid_3 ... ok
[INFO] [stdout] test tests::continuation_bytes ... ok
[INFO] [stdout] test tests::first_valid_3 ... ok
[INFO] [stdout] test tests::first_valid_1 ... ok
[INFO] [stdout] test tests::first_valid_4 ... ok
[INFO] [stdout] test tests::last_valid_2 ... ok
[INFO] [stdout] test tests::first_after_surrogates ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rut
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - Decode::rest (line 355) ... ok
[INFO] [stdout] test src/lib.rs - decode (line 332) ... ok
[INFO] [stdout] test src/lib.rs - decode (line 322) ... ok
[INFO] [stdout] test src/lib.rs - decode_one (line 257) ... ok
[INFO] [stdout] test src/lib.rs - decode_one (line 247) ... ok
[INFO] [stdout] test src/lib.rs - Decoder::decode_byte (line 133) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.05s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5027bfb92d634b17a17a3be8a17a56ac5ed6e5b0346fb6e895f1f54ffff8c70e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5027bfb92d634b17a17a3be8a17a56ac5ed6e5b0346fb6e895f1f54ffff8c70e", kill_on_drop: false }`
[INFO] [stdout] 5027bfb92d634b17a17a3be8a17a56ac5ed6e5b0346fb6e895f1f54ffff8c70e