[INFO] fetching crate log_buffer 1.2.0...
[INFO] testing log_buffer-1.2.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate log_buffer 1.2.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate log_buffer 1.2.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate log_buffer 1.2.0
[INFO] finished tweaking crates.io crate log_buffer 1.2.0
[INFO] tweaked toml for crates.io crate log_buffer 1.2.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7bab2ff669aae35681260c163beb965ace62a919f8367f52c6b5da0069bbf0e
[INFO] running `Command { std: "docker" "start" "-a" "a7bab2ff669aae35681260c163beb965ace62a919f8367f52c6b5da0069bbf0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7bab2ff669aae35681260c163beb965ace62a919f8367f52c6b5da0069bbf0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7bab2ff669aae35681260c163beb965ace62a919f8367f52c6b5da0069bbf0e", kill_on_drop: false }`
[INFO] [stdout] a7bab2ff669aae35681260c163beb965ace62a919f8367f52c6b5da0069bbf0e
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f141893a1fb7b120276826339b0f34fe2d548a11ce5ba3c6818c93dcc155235
[INFO] running `Command { std: "docker" "start" "-a" "7f141893a1fb7b120276826339b0f34fe2d548a11ce5ba3c6818c93dcc155235", kill_on_drop: false }`
[INFO] [stderr]    Compiling log_buffer v1.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "7f141893a1fb7b120276826339b0f34fe2d548a11ce5ba3c6818c93dcc155235", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f141893a1fb7b120276826339b0f34fe2d548a11ce5ba3c6818c93dcc155235", kill_on_drop: false }`
[INFO] [stdout] 7f141893a1fb7b120276826339b0f34fe2d548a11ce5ba3c6818c93dcc155235
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5a8ec7550a90e61a2968e1f7b0228ef1c8c8dec6025bb57d6a993bf0e6da23d
[INFO] running `Command { std: "docker" "start" "-a" "a5a8ec7550a90e61a2968e1f7b0228ef1c8c8dec6025bb57d6a993bf0e6da23d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling log_buffer v1.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "a5a8ec7550a90e61a2968e1f7b0228ef1c8c8dec6025bb57d6a993bf0e6da23d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5a8ec7550a90e61a2968e1f7b0228ef1c8c8dec6025bb57d6a993bf0e6da23d", kill_on_drop: false }`
[INFO] [stdout] a5a8ec7550a90e61a2968e1f7b0228ef1c8c8dec6025bb57d6a993bf0e6da23d
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 02d800ff03b1b689a508912fa82eb862f96a636432fe6a6bd06b5cf77d5d2ee7
[INFO] running `Command { std: "docker" "start" "-a" "02d800ff03b1b689a508912fa82eb862f96a636432fe6a6bd06b5cf77d5d2ee7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/log_buffer-a7e840f978760672)
[INFO] [stderr]      Running tests/log_buffer.rs (/opt/rustwide/target/debug/deps/log_buffer-be1cbf0d00503fae)
[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] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test basic ... ok
[INFO] [stderr]    Doc-tests log_buffer
[INFO] [stdout] test cut_off_utf8 ... ok
[INFO] [stdout] test lines ... ok
[INFO] [stdout] test exhaustive ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 25) ... ok
[INFO] [stdout] test src/lib.rs - (line 31) ... ok
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] test src/lib.rs - (line 38) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.70s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "02d800ff03b1b689a508912fa82eb862f96a636432fe6a6bd06b5cf77d5d2ee7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02d800ff03b1b689a508912fa82eb862f96a636432fe6a6bd06b5cf77d5d2ee7", kill_on_drop: false }`
[INFO] [stdout] 02d800ff03b1b689a508912fa82eb862f96a636432fe6a6bd06b5cf77d5d2ee7
