[INFO] updating cached repository performance/enum_hall
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/performance/enum_hall
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/performance/enum_hall" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/performance/enum_hall"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/performance/enum_hall'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/performance/enum_hall" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/performance/enum_hall"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/performance/enum_hall'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 92a1d9b240fb5b4899db5644a3a0010441c0821f
[INFO] sha for GitHub repo performance/enum_hall: 92a1d9b240fb5b4899db5644a3a0010441c0821f
[INFO] validating manifest of performance/enum_hall on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of performance/enum_hall on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing performance/enum_hall
[INFO] finished frobbing performance/enum_hall
[INFO] frobbed toml for performance/enum_hall written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/performance/enum_hall/Cargo.toml
[INFO] started frobbing performance/enum_hall
[INFO] finished frobbing performance/enum_hall
[INFO] frobbed toml for performance/enum_hall written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/performance/enum_hall/Cargo.toml
[INFO] crate performance/enum_hall already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/performance/enum_hall/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking performance/enum_hall against try#99a7498759a22b5684caf798a98b7e90ad9d2443 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-1/try#99a7498759a22b5684caf798a98b7e90ad9d2443:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/performance/enum_hall:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e07a91a2faf1e474d84a858384189171bfb64a7911b5cfc3ba85f0b726d7c7a1
[INFO] running `"docker" "start" "-a" "e07a91a2faf1e474d84a858384189171bfb64a7911b5cfc3ba85f0b726d7c7a1"`
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking enum_derive v0.1.7
[INFO] [stderr]     Checking enum_hall v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] error[E0425]: cannot find function `sample` in module `rand`
[INFO] [stderr]   --> src/main.rs:22:44
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let car_choice    : DoorChoice = rand::sample( rng, door_choices.into_iter(), 1)[0].clone();
[INFO] [stderr]    |                                            ^^^^^^ not found in `rand`
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 6  | use rand::seq::index::sample;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `sample` in module `rand`
[INFO] [stderr]   --> src/main.rs:23:44
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let player_choice : DoorChoice = rand::sample( rng, door_choices.into_iter(), 1)[0].clone();
[INFO] [stderr]    |                                            ^^^^^^ not found in `rand`
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 6  | use rand::seq::index::sample;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `sample` in module `rand`
[INFO] [stderr]   --> src/main.rs:42:11
[INFO] [stderr]    |
[INFO] [stderr] 42 |     rand::sample(rng, choices.into_iter(), 1)[0].clone()
[INFO] [stderr]    |           ^^^^^^ not found in `rand`
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 6  | use rand::seq::index::sample;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] error[E0425]: cannot find function `sample` in module `rand`
[INFO] [stderr]   --> src/main.rs:22:44
[INFO] [stderr]    |
[INFO] [stderr] 22 |     let car_choice    : DoorChoice = rand::sample( rng, door_choices.into_iter(), 1)[0].clone();
[INFO] [stderr]    |                                            ^^^^^^ not found in `rand`
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 6  | use rand::seq::index::sample;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `sample` in module `rand`
[INFO] [stderr]   --> src/main.rs:23:44
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let player_choice : DoorChoice = rand::sample( rng, door_choices.into_iter(), 1)[0].clone();
[INFO] [stderr]    |                                            ^^^^^^ not found in `rand`
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 6  | use rand::seq::index::sample;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `sample` in module `rand`
[INFO] [stderr]   --> src/main.rs:42:11
[INFO] [stderr]    |
[INFO] [stderr] 42 |     rand::sample(rng, choices.into_iter(), 1)[0].clone()
[INFO] [stderr]    |           ^^^^^^ not found in `rand`
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 6  | use rand::seq::index::sample;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0425`.
[INFO] [stderr] error: Could not compile `enum_hall`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0425`.
[INFO] [stderr] error: Could not compile `enum_hall`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e07a91a2faf1e474d84a858384189171bfb64a7911b5cfc3ba85f0b726d7c7a1"`
[INFO] running `"docker" "rm" "-f" "e07a91a2faf1e474d84a858384189171bfb64a7911b5cfc3ba85f0b726d7c7a1"`
[INFO] [stdout] e07a91a2faf1e474d84a858384189171bfb64a7911b5cfc3ba85f0b726d7c7a1