[INFO] updating cached repository jk-gan/minigrep
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jk-gan/minigrep
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jk-gan/minigrep" "work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/jk-gan/minigrep"`
[INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/jk-gan/minigrep'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jk-gan/minigrep" "work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/jk-gan/minigrep"`
[INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/jk-gan/minigrep'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9354338ba949566792776e6a9c7ce02643423ead
[INFO] sha for GitHub repo jk-gan/minigrep: 9354338ba949566792776e6a9c7ce02643423ead
[INFO] validating manifest of jk-gan/minigrep on toolchain master#589beb979c0f1a9736e02e578913db88398c3ba5
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jk-gan/minigrep on toolchain try#42445ded8fd34235a676755cb5d079658ed51f6a
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jk-gan/minigrep
[INFO] finished frobbing jk-gan/minigrep
[INFO] frobbed toml for jk-gan/minigrep written to work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/jk-gan/minigrep/Cargo.toml
[INFO] started frobbing jk-gan/minigrep
[INFO] finished frobbing jk-gan/minigrep
[INFO] frobbed toml for jk-gan/minigrep written to work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/jk-gan/minigrep/Cargo.toml
[INFO] crate jk-gan/minigrep already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jk-gan/minigrep against master#589beb979c0f1a9736e02e578913db88398c3ba5 for pr-60944
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60944/worker-6/master#589beb979c0f1a9736e02e578913db88398c3ba5:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/jk-gan/minigrep:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f14a50d969363189d35693c37f10c368b074b10e5defaa3822443de4c6836c98
[INFO] running `"docker" "start" "-a" "f14a50d969363189d35693c37f10c368b074b10e5defaa3822443de4c6836c98"`
[INFO] [stderr]     Checking minigrep v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io::prelude`
[INFO] [stderr]  --> src/lib.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::io::prelude`
[INFO] [stderr]  --> src/lib.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `"docker" "inspect" "f14a50d969363189d35693c37f10c368b074b10e5defaa3822443de4c6836c98"`
[INFO] running `"docker" "rm" "-f" "f14a50d969363189d35693c37f10c368b074b10e5defaa3822443de4c6836c98"`
[INFO] [stdout] f14a50d969363189d35693c37f10c368b074b10e5defaa3822443de4c6836c98