[INFO] updating cached repository https://github.com/jchoi5me/rmf
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/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] b9df3d416355556a153f7d7335512c8d72a4fe11
[INFO] checking jchoi5me/rmf against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjchoi5me%2Frmf" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jchoi5me/rmf on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jchoi5me/rmf
[INFO] finished tweaking git repo https://github.com/jchoi5me/rmf
[INFO] tweaked toml for git repo https://github.com/jchoi5me/rmf written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/jchoi5me/rmf already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d148a14130e21c4c502f4d928009517826eaca619c1a726c37c5be4a25b38566
[INFO] running `"docker" "start" "-a" "d148a14130e21c4c502f4d928009517826eaca619c1a726c37c5be4a25b38566"`
[INFO] [stderr]     Checking walkdir v2.2.8
[INFO] [stderr]     Checking rmf v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `ansi_term::Style`
[INFO] [stderr]  --> src/prelude.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use ansi_term::Style;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashSet`
[INFO] [stderr]  --> src/prelude.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::collections::HashSet;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `create_dir_all`, `create_dir`, `remove_dir`, `write`
[INFO] [stderr]  --> src/prelude.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     create_dir, create_dir_all, metadata, read_link, remove_dir, remove_dir_all, remove_file,
[INFO] [stderr]   |     ^^^^^^^^^^  ^^^^^^^^^^^^^^                       ^^^^^^^^^^
[INFO] [stderr] 8 |     symlink_metadata, write, Metadata,
[INFO] [stderr]   |                       ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::os::unix::fs::symlink`
[INFO] [stderr]   --> src/prelude.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::os::unix::fs::symlink;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ansi_term::Style`
[INFO] [stderr]  --> src/prelude.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use ansi_term::Style;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/prelude.rs:329:54
[INFO] [stderr]     |
[INFO] [stderr] 329 |         fn check_file_size(path: &PathBuf, checker: &Fn(u64) -> bool) -> Result<(), String> {
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(u64) -> bool`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.42s
[INFO] running `"docker" "inspect" "d148a14130e21c4c502f4d928009517826eaca619c1a726c37c5be4a25b38566"`
[INFO] running `"docker" "rm" "-f" "d148a14130e21c4c502f4d928009517826eaca619c1a726c37c5be4a25b38566"`
[INFO] [stdout] d148a14130e21c4c502f4d928009517826eaca619c1a726c37c5be4a25b38566