[INFO] fetching crate typewriter 0.1.0...
[INFO] testing typewriter-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate typewriter 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate typewriter 0.1.0
[INFO] finished tweaking crates.io crate typewriter 0.1.0
[INFO] tweaked toml for crates.io crate typewriter 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate typewriter 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 5c604ce565e4c4d6cb2e1f5072c05aaf51cde9b2bfc498d1925a438c55ad634e
[INFO] running `Command { std: "docker" "start" "-a" "5c604ce565e4c4d6cb2e1f5072c05aaf51cde9b2bfc498d1925a438c55ad634e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c604ce565e4c4d6cb2e1f5072c05aaf51cde9b2bfc498d1925a438c55ad634e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c604ce565e4c4d6cb2e1f5072c05aaf51cde9b2bfc498d1925a438c55ad634e", kill_on_drop: false }`
[INFO] [stdout] 5c604ce565e4c4d6cb2e1f5072c05aaf51cde9b2bfc498d1925a438c55ad634e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6b6fcf0dc9adc3fb89602ebcdb7323d7c0232f2f776309b692ceab2a9886d2dd
[INFO] running `Command { std: "docker" "start" "-a" "6b6fcf0dc9adc3fb89602ebcdb7323d7c0232f2f776309b692ceab2a9886d2dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling typewriter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `cols` is never read
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Scanner {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 2 |     bytes: Vec<u8>,
[INFO] [stdout] 3 |     cols: usize,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/lib.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl Scanner {
[INFO] [stdout]   | ------------ associated function in this implementation
[INFO] [stdout] 8 |     fn new(bytes: Vec<u8>, cols: usize, rows: usize) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bytes` is never read
[INFO] [stdout]   --> src/lib.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct ScannerBuilder {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 36 |     bytes: Option<Vec<u8>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "6b6fcf0dc9adc3fb89602ebcdb7323d7c0232f2f776309b692ceab2a9886d2dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b6fcf0dc9adc3fb89602ebcdb7323d7c0232f2f776309b692ceab2a9886d2dd", kill_on_drop: false }`
[INFO] [stdout] 6b6fcf0dc9adc3fb89602ebcdb7323d7c0232f2f776309b692ceab2a9886d2dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 5cd1eca7b6d4228fdfc12a7d09111c588f5b500eef972060e8f2badc161ae13d
[INFO] running `Command { std: "docker" "start" "-a" "5cd1eca7b6d4228fdfc12a7d09111c588f5b500eef972060e8f2badc161ae13d", kill_on_drop: false }`
[INFO] [stderr]    Compiling typewriter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `cols` is never read
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Scanner {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 2 |     bytes: Vec<u8>,
[INFO] [stdout] 3 |     cols: usize,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/lib.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl Scanner {
[INFO] [stdout]   | ------------ associated function in this implementation
[INFO] [stdout] 8 |     fn new(bytes: Vec<u8>, cols: usize, rows: usize) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bytes` is never read
[INFO] [stdout]   --> src/lib.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct ScannerBuilder {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 36 |     bytes: Option<Vec<u8>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cols` is never read
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Scanner {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 2 |     bytes: Vec<u8>,
[INFO] [stdout] 3 |     cols: usize,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]  --> src/lib.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | impl Scanner {
[INFO] [stdout]   | ------------ associated function in this implementation
[INFO] [stdout] 8 |     fn new(bytes: Vec<u8>, cols: usize, rows: usize) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bytes` is never read
[INFO] [stdout]   --> src/lib.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct ScannerBuilder {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 36 |     bytes: Option<Vec<u8>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "5cd1eca7b6d4228fdfc12a7d09111c588f5b500eef972060e8f2badc161ae13d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cd1eca7b6d4228fdfc12a7d09111c588f5b500eef972060e8f2badc161ae13d", kill_on_drop: false }`
[INFO] [stdout] 5cd1eca7b6d4228fdfc12a7d09111c588f5b500eef972060e8f2badc161ae13d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 7c90603c41e27298e47845f22c29c381864ce4d030137b211e73a811f348293f
[INFO] running `Command { std: "docker" "start" "-a" "7c90603c41e27298e47845f22c29c381864ce4d030137b211e73a811f348293f", kill_on_drop: false }`
[INFO] [stderr] warning: field `cols` is never read
[INFO] [stderr]  --> src/lib.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct Scanner {
[INFO] [stderr]   |            ------- field in this struct
[INFO] [stderr] 2 |     bytes: Vec<u8>,
[INFO] [stderr] 3 |     cols: usize,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]  --> src/lib.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 7 | impl Scanner {
[INFO] [stderr]   | ------------ associated function in this implementation
[INFO] [stderr] 8 |     fn new(bytes: Vec<u8>, cols: usize, rows: usize) -> Self {
[INFO] [stderr]   |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `bytes` is never read
[INFO] [stderr]   --> src/lib.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub struct ScannerBuilder {
[INFO] [stderr]    |            -------------- field in this struct
[INFO] [stderr] 36 |     bytes: Option<Vec<u8>>,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `typewriter` (lib) generated 3 warnings
[INFO] [stderr] warning: `typewriter` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/typewriter-b436d23ee45df285)
[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 typewriter
[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" "7c90603c41e27298e47845f22c29c381864ce4d030137b211e73a811f348293f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c90603c41e27298e47845f22c29c381864ce4d030137b211e73a811f348293f", kill_on_drop: false }`
[INFO] [stdout] 7c90603c41e27298e47845f22c29c381864ce4d030137b211e73a811f348293f