[INFO] fetching crate rotating-buffer 0.2.0...
[INFO] testing rotating-buffer-0.2.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate rotating-buffer 0.2.0 into /workspace/builds/worker-77/source
[INFO] validating manifest of crates.io crate rotating-buffer 0.2.0 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 rotating-buffer 0.2.0
[INFO] finished tweaking crates.io crate rotating-buffer 0.2.0
[INFO] tweaked toml for crates.io crate rotating-buffer 0.2.0 written to /workspace/builds/worker-77/source/Cargo.toml
[INFO] crate crates.io crate rotating-buffer 0.2.0 already has a lockfile, it will not be regenerated
[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-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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] 5835bd243aae3d406b8f0806bd676cc6ac231d5ab42a01c534d6e5b4cf39822f
[INFO] running `Command { std: "docker" "start" "-a" "5835bd243aae3d406b8f0806bd676cc6ac231d5ab42a01c534d6e5b4cf39822f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5835bd243aae3d406b8f0806bd676cc6ac231d5ab42a01c534d6e5b4cf39822f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5835bd243aae3d406b8f0806bd676cc6ac231d5ab42a01c534d6e5b4cf39822f", kill_on_drop: false }`
[INFO] [stdout] 5835bd243aae3d406b8f0806bd676cc6ac231d5ab42a01c534d6e5b4cf39822f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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] 1e6e3c3bc40c328e34cac27443828865ff7a25bfb24f87d686f828b96ca8a2b3
[INFO] running `Command { std: "docker" "start" "-a" "1e6e3c3bc40c328e34cac27443828865ff7a25bfb24f87d686f828b96ca8a2b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling rotating-buffer v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "1e6e3c3bc40c328e34cac27443828865ff7a25bfb24f87d686f828b96ca8a2b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e6e3c3bc40c328e34cac27443828865ff7a25bfb24f87d686f828b96ca8a2b3", kill_on_drop: false }`
[INFO] [stdout] 1e6e3c3bc40c328e34cac27443828865ff7a25bfb24f87d686f828b96ca8a2b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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] 334cb8f91d2024acf6fde7a18dd043d1280774c24490b613295d2716ffe49f27
[INFO] running `Command { std: "docker" "start" "-a" "334cb8f91d2024acf6fde7a18dd043d1280774c24490b613295d2716ffe49f27", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rotating-buffer v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "334cb8f91d2024acf6fde7a18dd043d1280774c24490b613295d2716ffe49f27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "334cb8f91d2024acf6fde7a18dd043d1280774c24490b613295d2716ffe49f27", kill_on_drop: false }`
[INFO] [stdout] 334cb8f91d2024acf6fde7a18dd043d1280774c24490b613295d2716ffe49f27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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] 949b06634e9ee74845d9e56ead2907fe578e6bfab5041ab73f188f7be845b7c3
[INFO] running `Command { std: "docker" "start" "-a" "949b06634e9ee74845d9e56ead2907fe578e6bfab5041ab73f188f7be845b7c3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rotating_buffer-b8931e3b841dee12)
[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 rotating-buffer
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] test src/lib.rs - RotatingBuffer<T, S>::as_slice (line 54) ... ok
[INFO] [stdout] test src/lib.rs - RotatingBuffer<T, S>::add_len (line 112) ... ok
[INFO] [stdout] test src/lib.rs - RotatingBuffer<T, S>::rotate_right_and_resize (line 132) ... ok
[INFO] [stdout] test src/lib.rs - RotatingBuffer<T, S>::get_append_only (line 70) ... ok
[INFO] [stdout] test src/lib.rs - RotatingBuffer<T, S> (line 170) ... ok
[INFO] [stdout] test src/lib.rs - RotatingBuffer<T, S>::rotate_right_and_resize_at (line 151) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.21s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "949b06634e9ee74845d9e56ead2907fe578e6bfab5041ab73f188f7be845b7c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "949b06634e9ee74845d9e56ead2907fe578e6bfab5041ab73f188f7be845b7c3", kill_on_drop: false }`
[INFO] [stdout] 949b06634e9ee74845d9e56ead2907fe578e6bfab5041ab73f188f7be845b7c3