[INFO] fetching crate mylex 0.1.1...
[INFO] testing mylex-0.1.1 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate mylex 0.1.1 into /workspace/builds/worker-62/source
[INFO] validating manifest of crates.io crate mylex 0.1.1 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mylex 0.1.1
[INFO] finished tweaking crates.io crate mylex 0.1.1
[INFO] tweaked toml for crates.io crate mylex 0.1.1 written to /workspace/builds/worker-62/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39b383807f58e85f07546dc8fc57db277e74580f7c338682fbc558318e62fed5
[INFO] running `Command { std: "docker" "start" "-a" "39b383807f58e85f07546dc8fc57db277e74580f7c338682fbc558318e62fed5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39b383807f58e85f07546dc8fc57db277e74580f7c338682fbc558318e62fed5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39b383807f58e85f07546dc8fc57db277e74580f7c338682fbc558318e62fed5", kill_on_drop: false }`
[INFO] [stdout] 39b383807f58e85f07546dc8fc57db277e74580f7c338682fbc558318e62fed5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9578f7d6a78af63cb74bc33004acb39bb00a883f0d189c735bfc19f79c5501c2
[INFO] running `Command { std: "docker" "start" "-a" "9578f7d6a78af63cb74bc33004acb39bb00a883f0d189c735bfc19f79c5501c2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mylex v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `last`
[INFO] [stdout]  --> src/string_slicer.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     last: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `slice`
[INFO] [stdout]   --> src/string_slicer.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn slice(&mut self) -> &str {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "9578f7d6a78af63cb74bc33004acb39bb00a883f0d189c735bfc19f79c5501c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9578f7d6a78af63cb74bc33004acb39bb00a883f0d189c735bfc19f79c5501c2", kill_on_drop: false }`
[INFO] [stdout] 9578f7d6a78af63cb74bc33004acb39bb00a883f0d189c735bfc19f79c5501c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8aa5fb3c4311936dc8f02c974a4e86c071e180e52ac0a10189c02b1eadef4ba7
[INFO] running `Command { std: "docker" "start" "-a" "8aa5fb3c4311936dc8f02c974a4e86c071e180e52ac0a10189c02b1eadef4ba7", kill_on_drop: false }`
[INFO] [stdout] warning: field is never read: `last`
[INFO] [stdout]  --> src/string_slicer.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     last: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mylex v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `slice`
[INFO] [stdout]   --> src/string_slicer.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn slice(&mut self) -> &str {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "8aa5fb3c4311936dc8f02c974a4e86c071e180e52ac0a10189c02b1eadef4ba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8aa5fb3c4311936dc8f02c974a4e86c071e180e52ac0a10189c02b1eadef4ba7", kill_on_drop: false }`
[INFO] [stdout] 8aa5fb3c4311936dc8f02c974a4e86c071e180e52ac0a10189c02b1eadef4ba7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ec42e274b60f9abde6d35e41db89d7f1203abf4535b479ab3d463f09ffbc3257
[INFO] running `Command { std: "docker" "start" "-a" "ec42e274b60f9abde6d35e41db89d7f1203abf4535b479ab3d463f09ffbc3257", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `last`
[INFO] [stderr]  --> src/string_slicer.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     last: usize,
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `slice`
[INFO] [stderr]   --> src/string_slicer.rs:20:12
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn slice(&mut self) -> &str {
[INFO] [stderr]    |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `mylex` (lib) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mylex-930a8a7ef6cebc15)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]    Doc-tests mylex
[INFO] [stdout] test lexer::test::test_lexer ... ok
[INFO] [stdout] test string_slicer::tests::test_string_slicer_slice ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "ec42e274b60f9abde6d35e41db89d7f1203abf4535b479ab3d463f09ffbc3257", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec42e274b60f9abde6d35e41db89d7f1203abf4535b479ab3d463f09ffbc3257", kill_on_drop: false }`
[INFO] [stdout] ec42e274b60f9abde6d35e41db89d7f1203abf4535b479ab3d463f09ffbc3257