[INFO] fetching crate prefix_writer 0.1.1...
[INFO] testing prefix_writer-0.1.1 against 1.91.0 for beta-1.92-2
[INFO] extracting crate prefix_writer 0.1.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate prefix_writer 0.1.1
[INFO] finished tweaking crates.io crate prefix_writer 0.1.1
[INFO] tweaked toml for crates.io crate prefix_writer 0.1.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate prefix_writer 0.1.1 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 20 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0acec69de1bbf6de7fbd0fb7d7f7ded3e118e9983ba05c3561c27f7965fa8ca7
[INFO] running `Command { std: "docker" "start" "-a" "0acec69de1bbf6de7fbd0fb7d7f7ded3e118e9983ba05c3561c27f7965fa8ca7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0acec69de1bbf6de7fbd0fb7d7f7ded3e118e9983ba05c3561c27f7965fa8ca7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0acec69de1bbf6de7fbd0fb7d7f7ded3e118e9983ba05c3561c27f7965fa8ca7", kill_on_drop: false }`
[INFO] [stdout] 0acec69de1bbf6de7fbd0fb7d7f7ded3e118e9983ba05c3561c27f7965fa8ca7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b34ee7f0ed1017aa769ba4deda29dcc449563f929fc4be9491ff9e523dc393c1
[INFO] running `Command { std: "docker" "start" "-a" "b34ee7f0ed1017aa769ba4deda29dcc449563f929fc4be9491ff9e523dc393c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling prefix_writer v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "b34ee7f0ed1017aa769ba4deda29dcc449563f929fc4be9491ff9e523dc393c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b34ee7f0ed1017aa769ba4deda29dcc449563f929fc4be9491ff9e523dc393c1", kill_on_drop: false }`
[INFO] [stdout] b34ee7f0ed1017aa769ba4deda29dcc449563f929fc4be9491ff9e523dc393c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a6451b272a63ebc625ea430c7044beeefdd329155d803faa894e4e709984cbb
[INFO] running `Command { std: "docker" "start" "-a" "4a6451b272a63ebc625ea430c7044beeefdd329155d803faa894e4e709984cbb", kill_on_drop: false }`
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling yansi v1.0.1
[INFO] [stderr]    Compiling const_format_proc_macros v0.2.34
[INFO] [stderr]    Compiling pretty_assertions v1.4.1
[INFO] [stderr]    Compiling const_format v0.2.35
[INFO] [stderr]    Compiling prefix_writer v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.46s
[INFO] running `Command { std: "docker" "inspect" "4a6451b272a63ebc625ea430c7044beeefdd329155d803faa894e4e709984cbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a6451b272a63ebc625ea430c7044beeefdd329155d803faa894e4e709984cbb", kill_on_drop: false }`
[INFO] [stdout] 4a6451b272a63ebc625ea430c7044beeefdd329155d803faa894e4e709984cbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3434fad776e5d615a70ce6fa3eb185f90ca3a0f77476c248f99dd2587a26f41c
[INFO] running `Command { std: "docker" "start" "-a" "3434fad776e5d615a70ce6fa3eb185f90ca3a0f77476c248f99dd2587a26f41c", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/prefix_writer-9a7a16d6ecc6c152)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test test::tests::empty ... ok
[INFO] [stdout] test test::tests::empty_lines ... ok
[INFO] [stdout] test test::tests::no_newline ... ok
[INFO] [stdout] test test::tests::single_line ... ok
[INFO] [stdout] test test::tests::two_line ... ok
[INFO] [stdout] test test::tests::two_line_remainder ... ok
[INFO] [stdout] test test::tests::two_line_empty_lines ... ok
[INFO] [stdout] test test::tests::fuzztest ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests prefix_writer
[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" "3434fad776e5d615a70ce6fa3eb185f90ca3a0f77476c248f99dd2587a26f41c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3434fad776e5d615a70ce6fa3eb185f90ca3a0f77476c248f99dd2587a26f41c", kill_on_drop: false }`
[INFO] [stdout] 3434fad776e5d615a70ce6fa3eb185f90ca3a0f77476c248f99dd2587a26f41c