[INFO] updating cached repository https://github.com/zserik/rustice
[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] 187af7323a2ad8eaef0dddec2afabcb4b3893ebf
[INFO] checking zserik/rustice against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzserik%2Frustice" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zserik/rustice on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/zserik/rustice
[INFO] finished tweaking git repo https://github.com/zserik/rustice
[INFO] tweaked toml for git repo https://github.com/zserik/rustice written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/zserik/rustice already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-6/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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" "+b61e69433951e31f7bd746e22f516a48ad41623b" "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] 040a17f62b02f4b86bfbc75cad6196822948895961904c95d8223ea9ad76d7e8
[INFO] running `"docker" "start" "-a" "040a17f62b02f4b86bfbc75cad6196822948895961904c95d8223ea9ad76d7e8"`
[INFO] [stderr]     Checking readfilez v0.1.3
[INFO] [stderr]    Compiling logos-derive v0.9.7
[INFO] [stderr]     Checking logos v0.9.7
[INFO] [stderr]     Checking rustice v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: type alias is never used: `CS`
[INFO] [stderr]  --> src/parse.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | type CS<'a> = types::CompleteStr<'a>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ParserResult`
[INFO] [stderr]   --> src/parse.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub enum ParserResult {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse`
[INFO] [stderr]   --> src/parse.rs:41:1
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub fn parse(prog: &str) -> ParserResult {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dump`
[INFO] [stderr]   --> src/parse.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn dump(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_from_file`
[INFO] [stderr]   --> src/parse.rs:72:1
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub fn parse_from_file(file: io::Result<fs::File>) -> ParserResult {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `CS`
[INFO] [stderr]  --> src/parse.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | type CS<'a> = types::CompleteStr<'a>;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ParserResult`
[INFO] [stderr]   --> src/parse.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub enum ParserResult {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse`
[INFO] [stderr]   --> src/parse.rs:41:1
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub fn parse(prog: &str) -> ParserResult {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `dump`
[INFO] [stderr]   --> src/parse.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub fn dump(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_from_file`
[INFO] [stderr]   --> src/parse.rs:72:1
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub fn parse_from_file(file: io::Result<fs::File>) -> ParserResult {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.81s
[INFO] running `"docker" "inspect" "040a17f62b02f4b86bfbc75cad6196822948895961904c95d8223ea9ad76d7e8"`
[INFO] running `"docker" "rm" "-f" "040a17f62b02f4b86bfbc75cad6196822948895961904c95d8223ea9ad76d7e8"`
[INFO] [stdout] 040a17f62b02f4b86bfbc75cad6196822948895961904c95d8223ea9ad76d7e8