[INFO] fetching crate lox-scanner 0.1.0...
[INFO] testing lox-scanner-0.1.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate lox-scanner 0.1.0 into /workspace/builds/worker-53/source
[INFO] validating manifest of crates.io crate lox-scanner 0.1.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-53/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" "+722e1797249a965b6335aebd65d777f917e498f1" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded peekmore v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7210c6dae5ef263985c89974cdbefedf2bc8a0a7322a0e9e78b6b9a7ad07578a
[INFO] running `Command { std: "docker" "start" "-a" "7210c6dae5ef263985c89974cdbefedf2bc8a0a7322a0e9e78b6b9a7ad07578a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7210c6dae5ef263985c89974cdbefedf2bc8a0a7322a0e9e78b6b9a7ad07578a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7210c6dae5ef263985c89974cdbefedf2bc8a0a7322a0e9e78b6b9a7ad07578a", kill_on_drop: false }`
[INFO] [stdout] 7210c6dae5ef263985c89974cdbefedf2bc8a0a7322a0e9e78b6b9a7ad07578a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb4d0db86210838cd9325bfc144752439e892bb9648f7619d7073ca9aeba3f8a
[INFO] running `Command { std: "docker" "start" "-a" "eb4d0db86210838cd9325bfc144752439e892bb9648f7619d7073ca9aeba3f8a", 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 0.70s
[INFO] running `Command { std: "docker" "inspect" "eb4d0db86210838cd9325bfc144752439e892bb9648f7619d7073ca9aeba3f8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb4d0db86210838cd9325bfc144752439e892bb9648f7619d7073ca9aeba3f8a", kill_on_drop: false }`
[INFO] [stdout] eb4d0db86210838cd9325bfc144752439e892bb9648f7619d7073ca9aeba3f8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3eae2361e023c521cc3f429f40053c63880c95a8a25e9522a5ac77b4c1d0bd5
[INFO] running `Command { std: "docker" "start" "-a" "a3eae2361e023c521cc3f429f40053c63880c95a8a25e9522a5ac77b4c1d0bd5", 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 1.05s
[INFO] running `Command { std: "docker" "inspect" "a3eae2361e023c521cc3f429f40053c63880c95a8a25e9522a5ac77b4c1d0bd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3eae2361e023c521cc3f429f40053c63880c95a8a25e9522a5ac77b4c1d0bd5", kill_on_drop: false }`
[INFO] [stdout] a3eae2361e023c521cc3f429f40053c63880c95a8a25e9522a5ac77b4c1d0bd5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 806bc53a6b175e5049570c51a80c680f5f410ef32f6c0415ee631048c709c991
[INFO] running `Command { std: "docker" "start" "-a" "806bc53a6b175e5049570c51a80c680f5f410ef32f6c0415ee631048c709c991", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-0cc074ac323c9665)
[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_single_char ... ok
[INFO] [stdout] test tests::test_list_single_char_tokens ... ok
[INFO] [stdout] test tests::test_unterminated_string ... ok
[INFO] [stdout] test tests::test_empty_source ... ok
[INFO] [stdout] test tests::test_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/sample-9dfdd3b34ac8d13e)
[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" "806bc53a6b175e5049570c51a80c680f5f410ef32f6c0415ee631048c709c991", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "806bc53a6b175e5049570c51a80c680f5f410ef32f6c0415ee631048c709c991", kill_on_drop: false }`
[INFO] [stdout] 806bc53a6b175e5049570c51a80c680f5f410ef32f6c0415ee631048c709c991