[INFO] fetching crate stack-string 0.3.0...
[INFO] testing stack-string-0.3.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate stack-string 0.3.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate stack-string 0.3.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stack-string 0.3.0
[INFO] finished tweaking crates.io crate stack-string 0.3.0
[INFO] tweaked toml for crates.io crate stack-string 0.3.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 60297bf693226d8403cd2c6db72475c3a39f896207a6ff4bb82edc2056d77dcf
[INFO] running `Command { std: "docker" "start" "-a" "60297bf693226d8403cd2c6db72475c3a39f896207a6ff4bb82edc2056d77dcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60297bf693226d8403cd2c6db72475c3a39f896207a6ff4bb82edc2056d77dcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60297bf693226d8403cd2c6db72475c3a39f896207a6ff4bb82edc2056d77dcf", kill_on_drop: false }`
[INFO] [stdout] 60297bf693226d8403cd2c6db72475c3a39f896207a6ff4bb82edc2056d77dcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6eb5f93ce658b7fdb13a61bda029d794c23679b763897a7f87bf765a5f84b01
[INFO] running `Command { std: "docker" "start" "-a" "f6eb5f93ce658b7fdb13a61bda029d794c23679b763897a7f87bf765a5f84b01", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling hyper v0.14.12
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling smartstring v0.2.9
[INFO] [stderr]    Compiling stack-string v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.73s
[INFO] running `Command { std: "docker" "inspect" "f6eb5f93ce658b7fdb13a61bda029d794c23679b763897a7f87bf765a5f84b01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6eb5f93ce658b7fdb13a61bda029d794c23679b763897a7f87bf765a5f84b01", kill_on_drop: false }`
[INFO] [stdout] f6eb5f93ce658b7fdb13a61bda029d794c23679b763897a7f87bf765a5f84b01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20394c98d9f4ec4b7e89d329f147c70944b20352ce7f51e201d9386f497d1014
[INFO] running `Command { std: "docker" "start" "-a" "20394c98d9f4ec4b7e89d329f147c70944b20352ce7f51e201d9386f497d1014", 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] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling stack-string v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.38s
[INFO] running `Command { std: "docker" "inspect" "20394c98d9f4ec4b7e89d329f147c70944b20352ce7f51e201d9386f497d1014", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20394c98d9f4ec4b7e89d329f147c70944b20352ce7f51e201d9386f497d1014", kill_on_drop: false }`
[INFO] [stdout] 20394c98d9f4ec4b7e89d329f147c70944b20352ce7f51e201d9386f497d1014
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7473de3c1ddd830560bbdbce36c4ae2c92dd432e48274440653815951bfb45e8
[INFO] running `Command { std: "docker" "start" "-a" "7473de3c1ddd830560bbdbce36c4ae2c92dd432e48274440653815951bfb45e8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/stack_string-79a3b69d56255bc2)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test tests::test_from_str ... ok
[INFO] [stdout] test tests::test_from_utf8 ... ok
[INFO] [stdout] test tests::test_partial_eq_string ... ok
[INFO] [stdout] test tests::test_contains_char ... ok
[INFO] [stdout] test tests::test_equality ... ok
[INFO] [stdout] test tests::test_contains_stackstring ... ok
[INFO] [stdout] test tests::test_default ... ok
[INFO] [stdout] test tests::test_as_ref ... ok
[INFO] [stdout] test tests::test_from_iterator_char ... ok
[INFO] [stdout] test tests::test_borrow ... ok
[INFO] [stdout] test tests::test_partialeq_cow ... ok
[INFO] [stdout] test tests::test_split_off ... ok
[INFO] [stdout] test tests::test_string_from_stackstring ... ok
[INFO] [stdout] test tests::test_stackstring_from_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests stack-string
[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" "7473de3c1ddd830560bbdbce36c4ae2c92dd432e48274440653815951bfb45e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7473de3c1ddd830560bbdbce36c4ae2c92dd432e48274440653815951bfb45e8", kill_on_drop: false }`
[INFO] [stdout] 7473de3c1ddd830560bbdbce36c4ae2c92dd432e48274440653815951bfb45e8