[INFO] fetching crate baffa 0.1.2...
[INFO] testing baffa-0.1.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate baffa 0.1.2 into /workspace/builds/worker-63/source
[INFO] validating manifest of crates.io crate baffa 0.1.2 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 baffa 0.1.2
[INFO] finished tweaking crates.io crate baffa 0.1.2
[INFO] tweaked toml for crates.io crate baffa 0.1.2 written to /workspace/builds/worker-63/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-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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] 99844c2aabbb9f7478f856c05460256fbbf724ccbdd173e4a00bec0aa55cdb80
[INFO] running `Command { std: "docker" "start" "-a" "99844c2aabbb9f7478f856c05460256fbbf724ccbdd173e4a00bec0aa55cdb80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99844c2aabbb9f7478f856c05460256fbbf724ccbdd173e4a00bec0aa55cdb80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99844c2aabbb9f7478f856c05460256fbbf724ccbdd173e4a00bec0aa55cdb80", kill_on_drop: false }`
[INFO] [stdout] 99844c2aabbb9f7478f856c05460256fbbf724ccbdd173e4a00bec0aa55cdb80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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] 2a6ca4fb7571bbca986e994c38a20ae29063fb442bd50b24e2e6d5df41f5ef24
[INFO] running `Command { std: "docker" "start" "-a" "2a6ca4fb7571bbca986e994c38a20ae29063fb442bd50b24e2e6d5df41f5ef24", kill_on_drop: false }`
[INFO] [stderr]    Compiling baffa v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "2a6ca4fb7571bbca986e994c38a20ae29063fb442bd50b24e2e6d5df41f5ef24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a6ca4fb7571bbca986e994c38a20ae29063fb442bd50b24e2e6d5df41f5ef24", kill_on_drop: false }`
[INFO] [stdout] 2a6ca4fb7571bbca986e994c38a20ae29063fb442bd50b24e2e6d5df41f5ef24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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] 5388e14343d344d36d4550951115d3a0e8d746f01823bd95ea623370c93443e3
[INFO] running `Command { std: "docker" "start" "-a" "5388e14343d344d36d4550951115d3a0e8d746f01823bd95ea623370c93443e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling baffa v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "5388e14343d344d36d4550951115d3a0e8d746f01823bd95ea623370c93443e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5388e14343d344d36d4550951115d3a0e8d746f01823bd95ea623370c93443e3", kill_on_drop: false }`
[INFO] [stdout] 5388e14343d344d36d4550951115d3a0e8d746f01823bd95ea623370c93443e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-63/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] 97ef17b11a60bca4ddc5d180651045d176a4ab93f43abf12afdce99ccb1973aa
[INFO] running `Command { std: "docker" "start" "-a" "97ef17b11a60bca4ddc5d180651045d176a4ab93f43abf12afdce99ccb1973aa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/baffa-b82ba3fee7893a9b)
[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]      Running tests/stack.rs (/opt/rustwide/target/debug/deps/stack-f4f51dd4a4339da0)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests baffa
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_ring_buffer ... ok
[INFO] [stdout] test test_stack_buffer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "97ef17b11a60bca4ddc5d180651045d176a4ab93f43abf12afdce99ccb1973aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97ef17b11a60bca4ddc5d180651045d176a4ab93f43abf12afdce99ccb1973aa", kill_on_drop: false }`
[INFO] [stdout] 97ef17b11a60bca4ddc5d180651045d176a4ab93f43abf12afdce99ccb1973aa