[INFO] updating cached repository https://github.com/jchoi5me/rmf
[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] b9df3d416355556a153f7d7335512c8d72a4fe11
[INFO] checking jchoi5me/rmf against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjchoi5me%2Frmf" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jchoi5me/rmf 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/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 /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/jchoi5me/rmf 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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stdout] 6450e68c51a930daf51c6449648addb7226fde59ae86a80601a1ee8750d0b2e8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "6450e68c51a930daf51c6449648addb7226fde59ae86a80601a1ee8750d0b2e8"`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking same-file v1.0.5
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking walkdir v2.2.8
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking structopt v0.2.18
[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 10.88s
[INFO] running `"docker" "inspect" "6450e68c51a930daf51c6449648addb7226fde59ae86a80601a1ee8750d0b2e8"`
[INFO] running `"docker" "rm" "-f" "6450e68c51a930daf51c6449648addb7226fde59ae86a80601a1ee8750d0b2e8"`
[INFO] [stdout] 6450e68c51a930daf51c6449648addb7226fde59ae86a80601a1ee8750d0b2e8