[INFO] fetching crate lox-scanner 0.1.0...
[INFO] testing lox-scanner-0.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate lox-scanner 0.1.0 into /workspace/builds/worker-52/source
[INFO] validating manifest of crates.io crate lox-scanner 0.1.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lox-scanner 0.1.0
[INFO] finished tweaking crates.io crate lox-scanner 0.1.0
[INFO] tweaked toml for crates.io crate lox-scanner 0.1.0 written to /workspace/builds/worker-52/source/Cargo.toml
[INFO] crate crates.io crate lox-scanner 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c49caf1c97637478b7ff0692aa0daa6c62703c04c65ec8cb4821e6be787678db
[INFO] running `Command { std: "docker" "start" "-a" "c49caf1c97637478b7ff0692aa0daa6c62703c04c65ec8cb4821e6be787678db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c49caf1c97637478b7ff0692aa0daa6c62703c04c65ec8cb4821e6be787678db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c49caf1c97637478b7ff0692aa0daa6c62703c04c65ec8cb4821e6be787678db", kill_on_drop: false }`
[INFO] [stdout] c49caf1c97637478b7ff0692aa0daa6c62703c04c65ec8cb4821e6be787678db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3543ddb6d8b2997e2b009d329330bce0ca3844db83ac46771cd4f20e589aebb
[INFO] running `Command { std: "docker" "start" "-a" "d3543ddb6d8b2997e2b009d329330bce0ca3844db83ac46771cd4f20e589aebb", kill_on_drop: false }`
[INFO] [stderr]    Compiling peekmore v1.0.0
[INFO] [stderr]    Compiling lox-scanner v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `peek_ahead`
[INFO] [stdout]   --> src/source_iterator.rs:38:19
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub(crate) fn peek_ahead(&mut self) -> Option<&char> {
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "d3543ddb6d8b2997e2b009d329330bce0ca3844db83ac46771cd4f20e589aebb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3543ddb6d8b2997e2b009d329330bce0ca3844db83ac46771cd4f20e589aebb", kill_on_drop: false }`
[INFO] [stdout] d3543ddb6d8b2997e2b009d329330bce0ca3844db83ac46771cd4f20e589aebb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4d4a978b0fa3da6ffa902aa98965926af05534925edc950233528d6e2e6f647
[INFO] running `Command { std: "docker" "start" "-a" "e4d4a978b0fa3da6ffa902aa98965926af05534925edc950233528d6e2e6f647", kill_on_drop: false }`
[INFO] [stderr]    Compiling lox-scanner v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `peek_ahead`
[INFO] [stdout]   --> src/source_iterator.rs:38:19
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub(crate) fn peek_ahead(&mut self) -> Option<&char> {
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `peek_ahead`
[INFO] [stdout]   --> src/source_iterator.rs:38:19
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub(crate) fn peek_ahead(&mut self) -> Option<&char> {
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "e4d4a978b0fa3da6ffa902aa98965926af05534925edc950233528d6e2e6f647", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4d4a978b0fa3da6ffa902aa98965926af05534925edc950233528d6e2e6f647", kill_on_drop: false }`
[INFO] [stdout] e4d4a978b0fa3da6ffa902aa98965926af05534925edc950233528d6e2e6f647
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1902643fe9e3f7ba8ec7892aefd15d2ab22d3470945b2e2c0c9db7b42675eecb
[INFO] running `Command { std: "docker" "start" "-a" "1902643fe9e3f7ba8ec7892aefd15d2ab22d3470945b2e2c0c9db7b42675eecb", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `peek_ahead`
[INFO] [stderr]   --> src/source_iterator.rs:38:19
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub(crate) fn peek_ahead(&mut self) -> Option<&char> {
[INFO] [stderr]    |                   ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `lox-scanner` (lib) generated 1 warning
[INFO] [stderr] warning: `lox-scanner` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/lox_scanner-9c7e3fbc6de1d53c)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test source_iterator::tests::test_empty ... ok
[INFO] [stdout] test source_iterator::tests::test_single_char ... ok
[INFO] [stdout] test source_iterator::tests::test_two_chars ... ok
[INFO] [stdout] test tests::test_empty_source ... ok
[INFO] [stdout] test tests::test_list_single_char_tokens ... ok
[INFO] [stdout] test tests::test_single_char ... ok
[INFO] [stdout] test tests::test_string ... ok
[INFO] [stdout] test tests::test_unterminated_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sample-4694ce6d00b536ab)
[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 lox-scanner
[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" "1902643fe9e3f7ba8ec7892aefd15d2ab22d3470945b2e2c0c9db7b42675eecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1902643fe9e3f7ba8ec7892aefd15d2ab22d3470945b2e2c0c9db7b42675eecb", kill_on_drop: false }`
[INFO] [stdout] 1902643fe9e3f7ba8ec7892aefd15d2ab22d3470945b2e2c0c9db7b42675eecb