[INFO] fetching crate string-builder 0.2.0...
[INFO] testing string-builder-0.2.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate string-builder 0.2.0 into /workspace/builds/worker-114/source
[INFO] validating manifest of crates.io crate string-builder 0.2.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate string-builder 0.2.0
[INFO] finished tweaking crates.io crate string-builder 0.2.0
[INFO] tweaked toml for crates.io crate string-builder 0.2.0 written to /workspace/builds/worker-114/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f011cb7a8ff8652172169b8a9b0c9c2b6c70798d4bb72a9c4ea652a6ce49dac
[INFO] running `Command { std: "docker" "start" "-a" "1f011cb7a8ff8652172169b8a9b0c9c2b6c70798d4bb72a9c4ea652a6ce49dac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f011cb7a8ff8652172169b8a9b0c9c2b6c70798d4bb72a9c4ea652a6ce49dac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f011cb7a8ff8652172169b8a9b0c9c2b6c70798d4bb72a9c4ea652a6ce49dac", kill_on_drop: false }`
[INFO] [stdout] 1f011cb7a8ff8652172169b8a9b0c9c2b6c70798d4bb72a9c4ea652a6ce49dac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6a36f06a89b8d49c805523989dc1047d6d5e3c9bee45196bcc9b7ef887111b3
[INFO] running `Command { std: "docker" "start" "-a" "f6a36f06a89b8d49c805523989dc1047d6d5e3c9bee45196bcc9b7ef887111b3", 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling string-builder v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "f6a36f06a89b8d49c805523989dc1047d6d5e3c9bee45196bcc9b7ef887111b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6a36f06a89b8d49c805523989dc1047d6d5e3c9bee45196bcc9b7ef887111b3", kill_on_drop: false }`
[INFO] [stdout] f6a36f06a89b8d49c805523989dc1047d6d5e3c9bee45196bcc9b7ef887111b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 891608169f64d23b28fdf840cca9afc3763391f5edef7d5e98390627ad3597e3
[INFO] running `Command { std: "docker" "start" "-a" "891608169f64d23b28fdf840cca9afc3763391f5edef7d5e98390627ad3597e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling string-builder v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "891608169f64d23b28fdf840cca9afc3763391f5edef7d5e98390627ad3597e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "891608169f64d23b28fdf840cca9afc3763391f5edef7d5e98390627ad3597e3", kill_on_drop: false }`
[INFO] [stdout] 891608169f64d23b28fdf840cca9afc3763391f5edef7d5e98390627ad3597e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-114/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d41083cf5070702e9a52b001eebb65f18f7d8b8a7b680ee5009132323bcbc8ab
[INFO] running `Command { std: "docker" "start" "-a" "d41083cf5070702e9a52b001eebb65f18f7d8b8a7b680ee5009132323bcbc8ab", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/string_builder-139fccb09b33d080)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::test_all_supported_types ... ok
[INFO] [stdout] test tests::test_individual_unicode_characters ... ok
[INFO] [stdout] test tests::test_tool_album ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests string-builder
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - Builder::append (line 30) ... ok
[INFO] [stdout] test src/lib.rs - Builder::len (line 44) ... ok
[INFO] [stdout] test src/lib.rs - Builder::string (line 60) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.43s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d41083cf5070702e9a52b001eebb65f18f7d8b8a7b680ee5009132323bcbc8ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d41083cf5070702e9a52b001eebb65f18f7d8b8a7b680ee5009132323bcbc8ab", kill_on_drop: false }`
[INFO] [stdout] d41083cf5070702e9a52b001eebb65f18f7d8b8a7b680ee5009132323bcbc8ab