[INFO] crate pom 3.1.0 is already in cache
[INFO] checking pom-3.1.0 against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] extracting crate pom 3.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate pom 3.1.0 on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate pom 3.1.0
[INFO] finished tweaking crates.io crate pom 3.1.0
[INFO] tweaked toml for crates.io crate pom 3.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate pom 3.1.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 42c7bf9c7311017dbbbc0a2d3b5f832fbcf0006917f46c3bf13318dc6ab65d93
[INFO] running `"docker" "start" "-a" "42c7bf9c7311017dbbbc0a2d3b5f832fbcf0006917f46c3bf13318dc6ab65d93"`
[INFO] [stderr]     Checking pom v3.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> examples/whitespace.rs:77:2
[INFO] [stderr]    |
[INFO] [stderr] 77 |       (
[INFO] [stderr]    |  _____^
[INFO] [stderr] 78 | |         whitespace() *
[INFO] [stderr] 79 | |         list(
[INFO] [stderr] 80 | |             call(container),
[INFO] [stderr] 81 | |             whitespace()
[INFO] [stderr] 82 | |         )
[INFO] [stderr] 83 | |     )
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 77 |     
[INFO] [stderr] 78 |         whitespace() *
[INFO] [stderr] 79 |         list(
[INFO] [stderr] 80 |             call(container),
[INFO] [stderr] 81 |             whitespace()
[INFO] [stderr] 82 |         )
[INFO] [stderr]  ...
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `outputOk`
[INFO] [stderr]   --> examples/sandbox.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let outputOk = crlf().parse("test".as_bytes());
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_outputOk`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `outputErr`
[INFO] [stderr]   --> examples/sandbox.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let outputErr = crlf().parse(&input);
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_outputErr`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `outputOk` should have a snake case name
[INFO] [stderr]   --> examples/sandbox.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let outputOk = crlf().parse("test".as_bytes());
[INFO] [stderr]    |         ^^^^^^^^ help: convert the identifier to snake case: `output_ok`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `outputErr` should have a snake case name
[INFO] [stderr]   --> examples/sandbox.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let outputErr = crlf().parse(&input);
[INFO] [stderr]    |         ^^^^^^^^^ help: convert the identifier to snake case: `output_err`
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.54s
[INFO] running `"docker" "inspect" "42c7bf9c7311017dbbbc0a2d3b5f832fbcf0006917f46c3bf13318dc6ab65d93"`
[INFO] running `"docker" "rm" "-f" "42c7bf9c7311017dbbbc0a2d3b5f832fbcf0006917f46c3bf13318dc6ab65d93"`
[INFO] [stdout] 42c7bf9c7311017dbbbc0a2d3b5f832fbcf0006917f46c3bf13318dc6ab65d93