[INFO] fetching crate oxlex 0.1.0...
[INFO] checking oxlex-0.1.0 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate oxlex 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate oxlex 0.1.0 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate oxlex 0.1.0
[INFO] finished tweaking crates.io crate oxlex 0.1.0
[INFO] tweaked toml for crates.io crate oxlex 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded oxlex-derive v0.1.0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3545b09de928c8cb8e8d9c8ddb69cf958e2dec0b7806e547ccf6278069d028d2
[INFO] running `"docker" "start" "-a" "3545b09de928c8cb8e8d9c8ddb69cf958e2dec0b7806e547ccf6278069d028d2"`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking memchr v2.3.3
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]    Compiling oxlex-derive v0.1.0
[INFO] [stderr]     Checking oxlex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `HashSet`
[INFO] [stderr]   --> src/lexer.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |         HashSet
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashSet`
[INFO] [stderr]   --> src/lexable.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |         HashSet
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashSet`
[INFO] [stderr]   --> src/lexer.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |         HashSet
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashSet`
[INFO] [stderr]   --> src/lexable.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |         HashSet
[INFO] [stderr]    |         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/test/lexer.rs:72:9
[INFO] [stderr]    |
[INFO] [stderr] 72 |     let mut lexer = Token::lexer(code);
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/test/lexer.rs:231:9
[INFO] [stderr]     |
[INFO] [stderr] 231 |     let mut lexer = Token::lexer(code);
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/test/lexer.rs:239:9
[INFO] [stderr]     |
[INFO] [stderr] 239 |     let mut lexer = Token::lexer(code);
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.78s
[INFO] running `"docker" "inspect" "3545b09de928c8cb8e8d9c8ddb69cf958e2dec0b7806e547ccf6278069d028d2"`
[INFO] running `"docker" "rm" "-f" "3545b09de928c8cb8e8d9c8ddb69cf958e2dec0b7806e547ccf6278069d028d2"`
[INFO] [stdout] 3545b09de928c8cb8e8d9c8ddb69cf958e2dec0b7806e547ccf6278069d028d2