[INFO] fetching crate vivian-essentials 0.1.0...
[INFO] testing vivian-essentials-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate vivian-essentials 0.1.0 into /workspace/builds/worker-50/source
[INFO] validating manifest of crates.io crate vivian-essentials 0.1.0 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 vivian-essentials 0.1.0
[INFO] finished tweaking crates.io crate vivian-essentials 0.1.0
[INFO] tweaked toml for crates.io crate vivian-essentials 0.1.0 written to /workspace/builds/worker-50/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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] aaac0c5c44e54a200d60940a854a85633ddf9f85f15b9ff5586131854194612b
[INFO] running `Command { std: "docker" "start" "-a" "aaac0c5c44e54a200d60940a854a85633ddf9f85f15b9ff5586131854194612b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aaac0c5c44e54a200d60940a854a85633ddf9f85f15b9ff5586131854194612b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaac0c5c44e54a200d60940a854a85633ddf9f85f15b9ff5586131854194612b", kill_on_drop: false }`
[INFO] [stdout] aaac0c5c44e54a200d60940a854a85633ddf9f85f15b9ff5586131854194612b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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] cccfdf872f7e7ffea2de0c8dff44abddc4631fbf92335e75d865fb7dbc4b969f
[INFO] running `Command { std: "docker" "start" "-a" "cccfdf872f7e7ffea2de0c8dff44abddc4631fbf92335e75d865fb7dbc4b969f", kill_on_drop: false }`
[INFO] [stderr]    Compiling vivian-essentials v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "cccfdf872f7e7ffea2de0c8dff44abddc4631fbf92335e75d865fb7dbc4b969f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cccfdf872f7e7ffea2de0c8dff44abddc4631fbf92335e75d865fb7dbc4b969f", kill_on_drop: false }`
[INFO] [stdout] cccfdf872f7e7ffea2de0c8dff44abddc4631fbf92335e75d865fb7dbc4b969f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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] eae3b3ee4a6780607e33849bd21070143a879fd0756035c2b9a31f7534a19b02
[INFO] running `Command { std: "docker" "start" "-a" "eae3b3ee4a6780607e33849bd21070143a879fd0756035c2b9a31f7534a19b02", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling vivian-essentials v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `Command { std: "docker" "inspect" "eae3b3ee4a6780607e33849bd21070143a879fd0756035c2b9a31f7534a19b02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eae3b3ee4a6780607e33849bd21070143a879fd0756035c2b9a31f7534a19b02", kill_on_drop: false }`
[INFO] [stdout] eae3b3ee4a6780607e33849bd21070143a879fd0756035c2b9a31f7534a19b02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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] dd376d7d96a66f6fc2ff398e72b299892d1cdb2279c2347692699c66ffca9649
[INFO] running `Command { std: "docker" "start" "-a" "dd376d7d96a66f6fc2ff398e72b299892d1cdb2279c2347692699c66ffca9649", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/essentials-106092c762a16525)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test guard::tests::failure ... ok
[INFO] [stdout] test guard::tests::success ... ok
[INFO] [stdout] test sugar::tests::test_tern ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests essentials
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 32) ... ignored
[INFO] [stdout] test src/lib.rs - (line 43) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 54) ... ok
[INFO] [stdout] test src/lib.rs - (line 22) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.31s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dd376d7d96a66f6fc2ff398e72b299892d1cdb2279c2347692699c66ffca9649", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd376d7d96a66f6fc2ff398e72b299892d1cdb2279c2347692699c66ffca9649", kill_on_drop: false }`
[INFO] [stdout] dd376d7d96a66f6fc2ff398e72b299892d1cdb2279c2347692699c66ffca9649