[INFO] fetching crate specimen__writable 0.1.0...
[INFO] testing specimen__writable-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate specimen__writable 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate specimen__writable 0.1.0
[INFO] finished tweaking crates.io crate specimen__writable 0.1.0
[INFO] tweaked toml for crates.io crate specimen__writable 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate specimen__writable 0.1.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 4078a121bb84c8de0b54c94466fc825a46b1be17f775b777314c9b4fff0d2c6e
[INFO] running `Command { std: "docker" "start" "-a" "4078a121bb84c8de0b54c94466fc825a46b1be17f775b777314c9b4fff0d2c6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4078a121bb84c8de0b54c94466fc825a46b1be17f775b777314c9b4fff0d2c6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4078a121bb84c8de0b54c94466fc825a46b1be17f775b777314c9b4fff0d2c6e", kill_on_drop: false }`
[INFO] [stdout] 4078a121bb84c8de0b54c94466fc825a46b1be17f775b777314c9b4fff0d2c6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 3ec96301b138f9f861d951728b6e0f12d392d8b3182ecc77a81ece523e215523
[INFO] running `Command { std: "docker" "start" "-a" "3ec96301b138f9f861d951728b6e0f12d392d8b3182ecc77a81ece523e215523", kill_on_drop: false }`
[INFO] [stderr]    Compiling specimen__writable v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `specimen__writable` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `specimen_writable`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "3ec96301b138f9f861d951728b6e0f12d392d8b3182ecc77a81ece523e215523", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ec96301b138f9f861d951728b6e0f12d392d8b3182ecc77a81ece523e215523", kill_on_drop: false }`
[INFO] [stdout] 3ec96301b138f9f861d951728b6e0f12d392d8b3182ecc77a81ece523e215523
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] f8e7441cf47bc763d45be73ba3bd9360238c6909efc4d5f6b7c5455d8ddd1bf5
[INFO] running `Command { std: "docker" "start" "-a" "f8e7441cf47bc763d45be73ba3bd9360238c6909efc4d5f6b7c5455d8ddd1bf5", kill_on_drop: false }`
[INFO] [stdout] warning: crate `specimen__writable` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `specimen_writable`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling specimen__writable v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "f8e7441cf47bc763d45be73ba3bd9360238c6909efc4d5f6b7c5455d8ddd1bf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8e7441cf47bc763d45be73ba3bd9360238c6909efc4d5f6b7c5455d8ddd1bf5", kill_on_drop: false }`
[INFO] [stdout] f8e7441cf47bc763d45be73ba3bd9360238c6909efc4d5f6b7c5455d8ddd1bf5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 1e4670d65b29eb6c24ce0d4dea567d53596169f392d3ce25e18a259b16fb3ce2
[INFO] running `Command { std: "docker" "start" "-a" "1e4670d65b29eb6c24ce0d4dea567d53596169f392d3ce25e18a259b16fb3ce2", kill_on_drop: false }`
[INFO] [stderr] warning: crate `specimen__writable` should have a snake case name
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] running 0 tests
[INFO] [stderr]   = help: convert the identifier to snake case: `specimen_writable`
[INFO] [stdout] 
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: `specimen__writable` (lib) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests writable.rs (/opt/rustwide/target/debug/deps/specimen__writable-03256fcc81c8e9c8)
[INFO] [stderr]    Doc-tests specimen__writable
[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" "1e4670d65b29eb6c24ce0d4dea567d53596169f392d3ce25e18a259b16fb3ce2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e4670d65b29eb6c24ce0d4dea567d53596169f392d3ce25e18a259b16fb3ce2", kill_on_drop: false }`
[INFO] [stdout] 1e4670d65b29eb6c24ce0d4dea567d53596169f392d3ce25e18a259b16fb3ce2