[INFO] fetching crate mylex 0.1.1...
[INFO] testing mylex-0.1.1 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate mylex 0.1.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate mylex 0.1.1 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 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-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] d2e51b8a04515630a6d45a409eaa347adab1055308871a768fe1fa3199cf0c79
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d2e51b8a04515630a6d45a409eaa347adab1055308871a768fe1fa3199cf0c79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2e51b8a04515630a6d45a409eaa347adab1055308871a768fe1fa3199cf0c79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2e51b8a04515630a6d45a409eaa347adab1055308871a768fe1fa3199cf0c79", kill_on_drop: false }`
[INFO] [stdout] d2e51b8a04515630a6d45a409eaa347adab1055308871a768fe1fa3199cf0c79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 22cb6a45ed7adff49ebd8b163b2927eee6690277ba5764aa918a7b16500e7283
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "22cb6a45ed7adff49ebd8b163b2927eee6690277ba5764aa918a7b16500e7283", 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 0.87s
[INFO] running `Command { std: "docker" "inspect" "22cb6a45ed7adff49ebd8b163b2927eee6690277ba5764aa918a7b16500e7283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22cb6a45ed7adff49ebd8b163b2927eee6690277ba5764aa918a7b16500e7283", kill_on_drop: false }`
[INFO] [stdout] 22cb6a45ed7adff49ebd8b163b2927eee6690277ba5764aa918a7b16500e7283
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 472fce1c844085b2293d32f7d4133e4eca551c6afe08a194f68658eba6185e2d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "472fce1c844085b2293d32f7d4133e4eca551c6afe08a194f68658eba6185e2d", 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 1.00s
[INFO] running `Command { std: "docker" "inspect" "472fce1c844085b2293d32f7d4133e4eca551c6afe08a194f68658eba6185e2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "472fce1c844085b2293d32f7d4133e4eca551c6afe08a194f68658eba6185e2d", kill_on_drop: false }`
[INFO] [stdout] 472fce1c844085b2293d32f7d4133e4eca551c6afe08a194f68658eba6185e2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] e35685dd2f64e03adfd1c3aceb705e8b0bedf6ce7cfcf5f2117b455654946c8b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e35685dd2f64e03adfd1c3aceb705e8b0bedf6ce7cfcf5f2117b455654946c8b", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: field is never read: `last`
[INFO] [stdout] running 2 tests
[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 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mylex-930a8a7ef6cebc15)
[INFO] [stdout] test lexer::test::test_lexer ... ok
[INFO] [stderr]    Doc-tests mylex
[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" "e35685dd2f64e03adfd1c3aceb705e8b0bedf6ce7cfcf5f2117b455654946c8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e35685dd2f64e03adfd1c3aceb705e8b0bedf6ce7cfcf5f2117b455654946c8b", kill_on_drop: false }`
[INFO] [stdout] e35685dd2f64e03adfd1c3aceb705e8b0bedf6ce7cfcf5f2117b455654946c8b