[INFO] updating cached repository https://github.com/trafficland/counter
[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] 3f30d2583eba4922a72b3ec885c831a2cf558067
[INFO] checking trafficland/counter against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrafficland%2Fcounter" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  76% (26/34)   
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Checking out files: 100% (34/34), done.
[INFO] validating manifest of git repo https://github.com/trafficland/counter on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/trafficland/counter
[INFO] finished tweaking git repo https://github.com/trafficland/counter
[INFO] tweaked toml for git repo https://github.com/trafficland/counter written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/trafficland/counter already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f0055b776940c984a7cfda13f8d3de5e178f58ce6e3b3a9841cb93b90f3cadea
[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" "f0055b776940c984a7cfda13f8d3de5e178f58ce6e3b3a9841cb93b90f3cadea"`
[INFO] [stderr]    Compiling libc v0.2.22
[INFO] [stderr]     Checking variance v0.1.3
[INFO] [stderr]     Checking scopeguard v0.1.2
[INFO] [stderr]     Checking vec_map v0.7.0
[INFO] [stderr]     Checking crossbeam v0.2.10
[INFO] [stderr]    Compiling names v0.11.0
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking thread-id v3.0.0
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr]     Checking num_cpus v1.4.0
[INFO] [stderr]    Compiling num-integer v0.1.34
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.3.3
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking clap v2.23.3
[INFO] [stderr]    Compiling num-iter v0.1.33
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking regex v0.2.1
[INFO] [stderr]     Checking scoped-pool v1.0.0
[INFO] [stderr]    Compiling num v0.1.37
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking elp v2.0.0
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]    Compiling counter v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/record_handling.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | / lazy_static! {
[INFO] [stderr] 41 | |     static ref SYSTEM_REGEX: Regex = Regex::new(r"(?i)system=([^&]*)").unwrap();
[INFO] [stderr] 42 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/record_handling.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | / lazy_static! {
[INFO] [stderr] 41 | |     static ref SYSTEM_REGEX: Regex = Regex::new(r"(?i)system=([^&]*)").unwrap();
[INFO] [stderr] 42 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]    --> src/file_handling.rs:332:40
[INFO] [stderr]     |
[INFO] [stderr] 332 |     static TEST_DIR_SYNC: sync::Once = sync::ONCE_INIT;
[INFO] [stderr]     |                                        ^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `Once::new()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/record_handling.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | / lazy_static! {
[INFO] [stderr] 41 | |     static ref SYSTEM_REGEX: Regex = Regex::new(r"(?i)system=([^&]*)").unwrap();
[INFO] [stderr] 42 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]   --> src/record_handling.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | / lazy_static! {
[INFO] [stderr] 41 | |     static ref SYSTEM_REGEX: Regex = Regex::new(r"(?i)system=([^&]*)").unwrap();
[INFO] [stderr] 42 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/aggregation_control.rs:24:39
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn run_aggregation(&mut self, mut filenames: &mut Vec<PathBuf>) -> FileAggregation {
[INFO] [stderr]    |                                       ----^^^^^^^^^
[INFO] [stderr]    |                                       |
[INFO] [stderr]    |                                       help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/file_handling.rs:355:23
[INFO] [stderr]     |
[INFO] [stderr] 355 |                 .map(|mut g| g.next().unwrap())
[INFO] [stderr]     |                       ----^
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:96:52
[INFO] [stderr]    |
[INFO] [stderr] 96 |     fn run(&mut self, num_file_aggregators: usize, mut filenames: &mut Vec<PathBuf>) -> counter::FileAggregation {
[INFO] [stderr]    |                                                    ----^^^^^^^^^
[INFO] [stderr]    |                                                    |
[INFO] [stderr]    |                                                    help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/aggregation_control.rs:24:39
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn run_aggregation(&mut self, mut filenames: &mut Vec<PathBuf>) -> FileAggregation {
[INFO] [stderr]    |                                       ----^^^^^^^^^
[INFO] [stderr]    |                                       |
[INFO] [stderr]    |                                       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:96:52
[INFO] [stderr]    |
[INFO] [stderr] 96 |     fn run(&mut self, num_file_aggregators: usize, mut filenames: &mut Vec<PathBuf>) -> counter::FileAggregation {
[INFO] [stderr]    |                                                    ----^^^^^^^^^
[INFO] [stderr]    |                                                    |
[INFO] [stderr]    |                                                    help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.30s
[INFO] running `"docker" "inspect" "f0055b776940c984a7cfda13f8d3de5e178f58ce6e3b3a9841cb93b90f3cadea"`
[INFO] running `"docker" "rm" "-f" "f0055b776940c984a7cfda13f8d3de5e178f58ce6e3b3a9841cb93b90f3cadea"`
[INFO] [stdout] f0055b776940c984a7cfda13f8d3de5e178f58ce6e3b3a9841cb93b90f3cadea