[INFO] updating cached repository https://github.com/BenSchZA/pier
[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] 9fa072987a10d3a24d61246a2398cc2ae2e431d9
[INFO] checking BenSchZA/pier against try#662bf71cc5bbfe44a109ab5b7205e12ec319754c for pr-67531
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenSchZA%2Fpier" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BenSchZA/pier on toolchain 662bf71cc5bbfe44a109ab5b7205e12ec319754c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+662bf71cc5bbfe44a109ab5b7205e12ec319754c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/BenSchZA/pier
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/BenSchZA/pier
[INFO] tweaked toml for git repo https://github.com/BenSchZA/pier written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/BenSchZA/pier already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+662bf71cc5bbfe44a109ab5b7205e12ec319754c" "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" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+662bf71cc5bbfe44a109ab5b7205e12ec319754c" "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] f986e2c9ded044e0b35f756ba21d00909d622dbf9fe0142bc0064c7fabc4004b
[INFO] running `"docker" "start" "-a" "f986e2c9ded044e0b35f756ba21d00909d622dbf9fe0142bc0064c7fabc4004b"`
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]     Checking normalize-line-endings v0.2.2
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking scrawl v1.1.0
[INFO] [stderr]    Compiling backtrace v0.3.16
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking getrandom v0.1.13
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]     Checking backtrace-sys v0.1.28
[INFO] [stderr]     Checking float-cmp v0.4.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking clap v2.27.1
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking regex v1.1.9
[INFO] [stderr]    Compiling enum-kinds v0.4.1
[INFO] [stderr]     Checking globset v0.4.4
[INFO] [stderr]     Checking predicates v1.0.1
[INFO] [stderr]     Checking ignore v0.4.10
[INFO] [stderr]     Checking globwalk v0.5.0
[INFO] [stderr]     Checking assert_fs v0.11.3
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]    Compiling snafu-derive v0.5.0
[INFO] [stderr]     Checking snafu v0.5.0
[INFO] [stderr]     Checking csv v1.0.7
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]     Checking escargot v0.4.0
[INFO] [stderr]     Checking pier v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `arg`
[INFO] [stderr]    --> src/lib.rs:216:42
[INFO] [stderr]     |
[INFO] [stderr] 216 |     pub fn run(&self, opts: &CliOptions, arg: &str) -> Result<()> {
[INFO] [stderr]     |                                          ^^^ help: consider prefixing with an underscore: `_arg`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stderr] warning: unused variable: `arg`
[INFO] [stderr]    --> src/lib.rs:216:42
[INFO] [stderr]     |
[INFO] [stderr] 216 |     pub fn run(&self, opts: &CliOptions, arg: &str) -> Result<()> {
[INFO] [stderr]     |                                          ^^^ help: consider prefixing with an underscore: `_arg`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 33s
[INFO] running `"docker" "inspect" "f986e2c9ded044e0b35f756ba21d00909d622dbf9fe0142bc0064c7fabc4004b"`
[INFO] running `"docker" "rm" "-f" "f986e2c9ded044e0b35f756ba21d00909d622dbf9fe0142bc0064c7fabc4004b"`
[INFO] [stdout] f986e2c9ded044e0b35f756ba21d00909d622dbf9fe0142bc0064c7fabc4004b