[INFO] cloning repository https://github.com/CarterTsai/rust_lexer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CarterTsai/rust_lexer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCarterTsai%2Frust_lexer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCarterTsai%2Frust_lexer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 65908eeee35f5ac86ee57848d73b194e17442ad1
[INFO] testing CarterTsai/rust_lexer against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCarterTsai%2Frust_lexer" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CarterTsai/rust_lexer on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CarterTsai/rust_lexer
[INFO] finished tweaking git repo https://github.com/CarterTsai/rust_lexer
[INFO] tweaked toml for git repo https://github.com/CarterTsai/rust_lexer written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/CarterTsai/rust_lexer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d2e20184b716450dd0b1dfaefaf661a762075e580ea971c4de71792c32012fdc
[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" "d2e20184b716450dd0b1dfaefaf661a762075e580ea971c4de71792c32012fdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2e20184b716450dd0b1dfaefaf661a762075e580ea971c4de71792c32012fdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2e20184b716450dd0b1dfaefaf661a762075e580ea971c4de71792c32012fdc", kill_on_drop: false }`
[INFO] [stdout] d2e20184b716450dd0b1dfaefaf661a762075e580ea971c4de71792c32012fdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5f9b4fed061c7ed089e1931a6c918b99e4df7a1be2f1f12ab4547198dc9fd3af
[INFO] running `Command { std: "docker" "start" "-a" "5f9b4fed061c7ed089e1931a6c918b99e4df7a1be2f1f12ab4547198dc9fd3af", kill_on_drop: false }`
[INFO] [stderr]    Compiling lexer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `current_token`
[INFO] [stdout]  --> src/lexer.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     current_token: Token,
[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 0.90s
[INFO] running `Command { std: "docker" "inspect" "5f9b4fed061c7ed089e1931a6c918b99e4df7a1be2f1f12ab4547198dc9fd3af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f9b4fed061c7ed089e1931a6c918b99e4df7a1be2f1f12ab4547198dc9fd3af", kill_on_drop: false }`
[INFO] [stdout] 5f9b4fed061c7ed089e1931a6c918b99e4df7a1be2f1f12ab4547198dc9fd3af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84815914f0a85bd977808bc22533d0e1c8efec7b9602f91488002dec06c676f1
[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" "84815914f0a85bd977808bc22533d0e1c8efec7b9602f91488002dec06c676f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling lexer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `current_token`
[INFO] [stdout]  --> src/lexer.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     current_token: Token,
[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 0.73s
[INFO] running `Command { std: "docker" "inspect" "84815914f0a85bd977808bc22533d0e1c8efec7b9602f91488002dec06c676f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84815914f0a85bd977808bc22533d0e1c8efec7b9602f91488002dec06c676f1", kill_on_drop: false }`
[INFO] [stdout] 84815914f0a85bd977808bc22533d0e1c8efec7b9602f91488002dec06c676f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7e16b445ae4e657e000a119dfae1124a6ff068bcdd43589a43f9051b08cf5e9a
[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" "7e16b445ae4e657e000a119dfae1124a6ff068bcdd43589a43f9051b08cf5e9a", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `current_token`
[INFO] [stderr]  --> src/lexer.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     current_token: Token,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `lexer` (bin "lexer" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/lexer-b8f4fb0a55f3095e)
[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" "7e16b445ae4e657e000a119dfae1124a6ff068bcdd43589a43f9051b08cf5e9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e16b445ae4e657e000a119dfae1124a6ff068bcdd43589a43f9051b08cf5e9a", kill_on_drop: false }`
[INFO] [stdout] 7e16b445ae4e657e000a119dfae1124a6ff068bcdd43589a43f9051b08cf5e9a