[INFO] fetching crate str-buf 2.0.0...
[INFO] testing str-buf-2.0.0 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate str-buf 2.0.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate str-buf 2.0.0 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate str-buf 2.0.0
[INFO] finished tweaking crates.io crate str-buf 2.0.0
[INFO] tweaked toml for crates.io crate str-buf 2.0.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81ead2dcc613d49aa1798639ccaf4b9aaf4e76eeb2e8bfb3cef09ecd5a04abe4
[INFO] running `Command { std: "docker" "start" "-a" "81ead2dcc613d49aa1798639ccaf4b9aaf4e76eeb2e8bfb3cef09ecd5a04abe4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81ead2dcc613d49aa1798639ccaf4b9aaf4e76eeb2e8bfb3cef09ecd5a04abe4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81ead2dcc613d49aa1798639ccaf4b9aaf4e76eeb2e8bfb3cef09ecd5a04abe4", kill_on_drop: false }`
[INFO] [stdout] 81ead2dcc613d49aa1798639ccaf4b9aaf4e76eeb2e8bfb3cef09ecd5a04abe4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e709012bfbc52616e9dd4b583e5b1ee4fac549c31424c313f4a98811ef7de18
[INFO] running `Command { std: "docker" "start" "-a" "2e709012bfbc52616e9dd4b583e5b1ee4fac549c31424c313f4a98811ef7de18", kill_on_drop: false }`
[INFO] [stderr]    Compiling str-buf v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "2e709012bfbc52616e9dd4b583e5b1ee4fac549c31424c313f4a98811ef7de18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e709012bfbc52616e9dd4b583e5b1ee4fac549c31424c313f4a98811ef7de18", kill_on_drop: false }`
[INFO] [stdout] 2e709012bfbc52616e9dd4b583e5b1ee4fac549c31424c313f4a98811ef7de18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e566473b9fea4fabda0c5978a0a502ab00c0eac4390c7848996c9868814c63d5
[INFO] running `Command { std: "docker" "start" "-a" "e566473b9fea4fabda0c5978a0a502ab00c0eac4390c7848996c9868814c63d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling str-buf v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "e566473b9fea4fabda0c5978a0a502ab00c0eac4390c7848996c9868814c63d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e566473b9fea4fabda0c5978a0a502ab00c0eac4390c7848996c9868814c63d5", kill_on_drop: false }`
[INFO] [stdout] e566473b9fea4fabda0c5978a0a502ab00c0eac4390c7848996c9868814c63d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 724e00d83738b0a023ca64f9323d000f7c12b87f5da4f08f447a732e412ef162
[INFO] running `Command { std: "docker" "start" "-a" "724e00d83738b0a023ca64f9323d000f7c12b87f5da4f08f447a732e412ef162", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/str_buf-e2900ef3f5ca53b4)
[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/panic_asserts.rs (/opt/rustwide/target/debug/deps/panic_asserts-3cf352b4aed210fb)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test from_str_overflow_panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests str-buf
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - StrBuf (line 41) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.21s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "724e00d83738b0a023ca64f9323d000f7c12b87f5da4f08f447a732e412ef162", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "724e00d83738b0a023ca64f9323d000f7c12b87f5da4f08f447a732e412ef162", kill_on_drop: false }`
[INFO] [stdout] 724e00d83738b0a023ca64f9323d000f7c12b87f5da4f08f447a732e412ef162