[INFO] updating cached repository https://github.com/Jimskapt/castor_whispers
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9803d41e62a609a1d3ae4f383036f689c99b5009
[INFO] checking Jimskapt/castor_whispers against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJimskapt%2Fcastor_whispers" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jimskapt/castor_whispers on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Jimskapt/castor_whispers
[INFO] finished tweaking git repo https://github.com/Jimskapt/castor_whispers
[INFO] tweaked toml for git repo https://github.com/Jimskapt/castor_whispers written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Jimskapt/castor_whispers already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "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" "+d7b51666469c792a8a3f40849607739bae1e705e" "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] f9cd68e19275472f8529a7dbfbeb30d68ed6bac17f6d6b0a659b22e16b1bafb7
[INFO] running `"docker" "start" "-a" "f9cd68e19275472f8529a7dbfbeb30d68ed6bac17f6d6b0a659b22e16b1bafb7"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]     Checking regex v1.3.5
[INFO] [stderr]     Checking castor_whispers v3.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `crate::comment::comment`
[INFO] [stderr]  --> src/tests/comment_test.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::comment::comment;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::only_commented::only_commented`
[INFO] [stderr]  --> src/tests/only_commented_test.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::only_commented::only_commented;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `comment_on` is never read
[INFO] [stderr]   --> src/comment.rs:58:3
[INFO] [stderr]    |
[INFO] [stderr] 58 |         comment_on = false; // this is just a precaution in case the code that follows this line evolves.
[INFO] [stderr]    |         ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `only_uncommented`
[INFO] [stderr]  --> src/only_uncommented.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn only_uncommented(_input_content: &str) -> String {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `comment_on` is never read
[INFO] [stderr]   --> src/comment.rs:58:3
[INFO] [stderr]    |
[INFO] [stderr] 58 |         comment_on = false; // this is just a precaution in case the code that follows this line evolves.
[INFO] [stderr]    |         ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `only_uncommented`
[INFO] [stderr]  --> src/only_uncommented.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn only_uncommented(_input_content: &str) -> String {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.73s
[INFO] running `"docker" "inspect" "f9cd68e19275472f8529a7dbfbeb30d68ed6bac17f6d6b0a659b22e16b1bafb7"`
[INFO] running `"docker" "rm" "-f" "f9cd68e19275472f8529a7dbfbeb30d68ed6bac17f6d6b0a659b22e16b1bafb7"`
[INFO] [stdout] f9cd68e19275472f8529a7dbfbeb30d68ed6bac17f6d6b0a659b22e16b1bafb7