[INFO] updating cached repository https://github.com/mgattozzi/flcl
[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] da78410bc689761855d5583ff4428258807b0871
[INFO] checking mgattozzi/flcl against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmgattozzi%2Fflcl" "/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/mgattozzi/flcl 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/mgattozzi/flcl
[INFO] finished tweaking git repo https://github.com/mgattozzi/flcl
[INFO] tweaked toml for git repo https://github.com/mgattozzi/flcl written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mgattozzi/flcl already has a lockfile, it will not be regenerated
[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-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" "+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] 5694b16e697d54913932681b4a8e9cf40c44ac35e8533dbb4e758cd8ee5d911d
[INFO] running `"docker" "start" "-a" "5694b16e697d54913932681b4a8e9cf40c44ac35e8533dbb4e758cd8ee5d911d"`
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking backtrace-sys v0.1.23
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking nom v4.0.0
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking flcl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/parser.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 |   /// This only ever returns a Primitive::Function
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 33 | / named!(fn_parse<&str, Primitive>,
[INFO] [stderr] 34 | |     complete!(do_parse!(
[INFO] [stderr] 35 | |         take_while!(is_white_space) >>
[INFO] [stderr] 36 | |         tag!("(") >>
[INFO] [stderr] ...  |
[INFO] [stderr] 46 | |     ))
[INFO] [stderr] 47 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/parser.rs:32:1
[INFO] [stderr]    |
[INFO] [stderr] 32 |   /// This only ever returns a Primitive::Function
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 33 | / named!(fn_parse<&str, Primitive>,
[INFO] [stderr] 34 | |     complete!(do_parse!(
[INFO] [stderr] 35 | |         take_while!(is_white_space) >>
[INFO] [stderr] 36 | |         tag!("(") >>
[INFO] [stderr] ...  |
[INFO] [stderr] 46 | |     ))
[INFO] [stderr] 47 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.05s
[INFO] running `"docker" "inspect" "5694b16e697d54913932681b4a8e9cf40c44ac35e8533dbb4e758cd8ee5d911d"`
[INFO] running `"docker" "rm" "-f" "5694b16e697d54913932681b4a8e9cf40c44ac35e8533dbb4e758cd8ee5d911d"`
[INFO] [stdout] 5694b16e697d54913932681b4a8e9cf40c44ac35e8533dbb4e758cd8ee5d911d