[INFO] fetching crate read_chars 0.3.0...
[INFO] testing read_chars-0.3.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate read_chars 0.3.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate read_chars 0.3.0
[INFO] finished tweaking crates.io crate read_chars 0.3.0
[INFO] tweaked toml for crates.io crate read_chars 0.3.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate read_chars 0.3.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc00697fcd53e4462f0f1b0b7b0b87e98e335f7ad9e83f89ea3b669119d9a6f1
[INFO] running `Command { std: "docker" "start" "-a" "fc00697fcd53e4462f0f1b0b7b0b87e98e335f7ad9e83f89ea3b669119d9a6f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc00697fcd53e4462f0f1b0b7b0b87e98e335f7ad9e83f89ea3b669119d9a6f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc00697fcd53e4462f0f1b0b7b0b87e98e335f7ad9e83f89ea3b669119d9a6f1", kill_on_drop: false }`
[INFO] [stdout] fc00697fcd53e4462f0f1b0b7b0b87e98e335f7ad9e83f89ea3b669119d9a6f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c50a6f0bbb01b2f2b5b6c5b58527797207083c92ddedcf6b9ef94a14b5d14dbd
[INFO] running `Command { std: "docker" "start" "-a" "c50a6f0bbb01b2f2b5b6c5b58527797207083c92ddedcf6b9ef94a14b5d14dbd", kill_on_drop: false }`
[INFO] [stderr]    Compiling read_chars v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "c50a6f0bbb01b2f2b5b6c5b58527797207083c92ddedcf6b9ef94a14b5d14dbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c50a6f0bbb01b2f2b5b6c5b58527797207083c92ddedcf6b9ef94a14b5d14dbd", kill_on_drop: false }`
[INFO] [stdout] c50a6f0bbb01b2f2b5b6c5b58527797207083c92ddedcf6b9ef94a14b5d14dbd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14e37a97810721b850e6887e45219ee55bad35e723d82e489a6f80e40de2c265
[INFO] running `Command { std: "docker" "start" "-a" "14e37a97810721b850e6887e45219ee55bad35e723d82e489a6f80e40de2c265", kill_on_drop: false }`
[INFO] [stderr]    Compiling read_chars v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "14e37a97810721b850e6887e45219ee55bad35e723d82e489a6f80e40de2c265", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14e37a97810721b850e6887e45219ee55bad35e723d82e489a6f80e40de2c265", kill_on_drop: false }`
[INFO] [stdout] 14e37a97810721b850e6887e45219ee55bad35e723d82e489a6f80e40de2c265
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cca43231a8c20791a99cfe087e072d1fb1338713723a86f4671c29b5aff5e7e2
[INFO] running `Command { std: "docker" "start" "-a" "cca43231a8c20791a99cfe087e072d1fb1338713723a86f4671c29b5aff5e7e2", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/read_chars-505d0feffc67cad0)
[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]    Doc-tests read_chars
[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" "cca43231a8c20791a99cfe087e072d1fb1338713723a86f4671c29b5aff5e7e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cca43231a8c20791a99cfe087e072d1fb1338713723a86f4671c29b5aff5e7e2", kill_on_drop: false }`
[INFO] [stdout] cca43231a8c20791a99cfe087e072d1fb1338713723a86f4671c29b5aff5e7e2