[INFO] crate challenge-prompt 0.2.0 is already in cache
[INFO] extracting crate challenge-prompt 0.2.0 into work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/challenge-prompt/0.2.0
[INFO] extracting crate challenge-prompt 0.2.0 into work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/challenge-prompt/0.2.0
[INFO] validating manifest of challenge-prompt-0.2.0 on toolchain master#a850a426491e14186af2250549bf41256b5938d2
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of challenge-prompt-0.2.0 on toolchain try#06a150c7d11500b41499224f165e9de1de096768
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing challenge-prompt-0.2.0
[INFO] finished frobbing challenge-prompt-0.2.0
[INFO] frobbed toml for challenge-prompt-0.2.0 written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/reg/challenge-prompt/0.2.0/Cargo.toml
[INFO] started frobbing challenge-prompt-0.2.0
[INFO] finished frobbing challenge-prompt-0.2.0
[INFO] frobbed toml for challenge-prompt-0.2.0 written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/challenge-prompt/0.2.0/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking challenge-prompt-0.2.0 against try#06a150c7d11500b41499224f165e9de1de096768 for pr-60162
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-7/try#06a150c7d11500b41499224f165e9de1de096768:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/reg/challenge-prompt/0.2.0:/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" "+06a150c7d11500b41499224f165e9de1de096768-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fc5165bafd4072beaa9daee37f68d3222d07ede18f015c80d590742790962a98
[INFO] running `"docker" "start" "-a" "fc5165bafd4072beaa9daee37f68d3222d07ede18f015c80d590742790962a98"`
[INFO] [stderr]     Checking challenge-prompt v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Checking assert_cmd v0.9.1
[INFO] [stderr] warning: the item `rand` is imported redundantly
[INFO] [stderr]   --> src/lib.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 40 | extern crate rand;
[INFO] [stderr]    | ------------------ the item `rand` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 55 |         use rand;
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `rand` is imported redundantly
[INFO] [stderr]   --> src/lib.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 40 | extern crate rand;
[INFO] [stderr]    | ------------------ the item `rand` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 55 |         use rand;
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.28s
[INFO] running `"docker" "inspect" "fc5165bafd4072beaa9daee37f68d3222d07ede18f015c80d590742790962a98"`
[INFO] running `"docker" "rm" "-f" "fc5165bafd4072beaa9daee37f68d3222d07ede18f015c80d590742790962a98"`
[INFO] [stdout] fc5165bafd4072beaa9daee37f68d3222d07ede18f015c80d590742790962a98