[INFO] updating cached repository https://github.com/BenSchZA/pier
[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] a8330ac9bbfceaedda989ba8a316da9c7d2bb677
[INFO] checking BenSchZA/pier against master#4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb for pr-64672
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FBenSchZA%2Fpier" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BenSchZA/pier on toolchain 4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/BenSchZA/pier
[INFO] finished tweaking git repo https://github.com/BenSchZA/pier
[INFO] tweaked toml for git repo https://github.com/BenSchZA/pier written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/BenSchZA/pier already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-7/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" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 760ccfb2d4cbb3443ab01790a42e03d9fde5b9967b69d4152a65fa781fa206e3
[INFO] running `"docker" "start" "-a" "760ccfb2d4cbb3443ab01790a42e03d9fde5b9967b69d4152a65fa781fa206e3"`
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking errno v0.2.4
[INFO] [stderr]     Checking clap v2.27.1
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]     Checking csv v1.0.7
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking shell v0.1.0 (https://github.com/google/rust-shell#8b1e775b)
[INFO] [stderr]     Checking pier v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Cell`, `Row`
[INFO] [stderr]   --> src/main.rs:12:26
[INFO] [stderr]    |
[INFO] [stderr] 12 | use prettytable::{Table, Row, Cell, format};
[INFO] [stderr]    |                          ^^^  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Cell`, `Row`
[INFO] [stderr]   --> src/main.rs:12:26
[INFO] [stderr]    |
[INFO] [stderr] 12 | use prettytable::{Table, Row, Cell, format};
[INFO] [stderr]    |                          ^^^  ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.10s
[INFO] running `"docker" "inspect" "760ccfb2d4cbb3443ab01790a42e03d9fde5b9967b69d4152a65fa781fa206e3"`
[INFO] running `"docker" "rm" "-f" "760ccfb2d4cbb3443ab01790a42e03d9fde5b9967b69d4152a65fa781fa206e3"`
[INFO] [stdout] 760ccfb2d4cbb3443ab01790a42e03d9fde5b9967b69d4152a65fa781fa206e3