[INFO] crate coin-tosser 0.1.2 is already in cache
[INFO] checking coin-tosser-0.1.2 against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] extracting crate coin-tosser 0.1.2 into work/builds/worker-2/source
[INFO] validating manifest of crates.io crate coin-tosser 0.1.2 on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate coin-tosser 0.1.2
[INFO] finished tweaking crates.io crate coin-tosser 0.1.2
[INFO] tweaked toml for crates.io crate coin-tosser 0.1.2 written to work/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate coin-tosser 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-2/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" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0341cd6456f1619163a788de678d66410c7c542fdbcaa117b84da23619d919d9
[INFO] running `"docker" "start" "-a" "0341cd6456f1619163a788de678d66410c7c542fdbcaa117b84da23619d919d9"`
[INFO] [stderr]     Checking cargo-readme v3.1.2
[INFO] [stderr]     Checking coin-tosser v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]  --> src/main.rs:9:7
[INFO] [stderr]   |
[INFO] [stderr] 9 |   for x in 0..number_of_rounds {
[INFO] [stderr]   |       ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/main.rs:19:11
[INFO] [stderr]    |
[INFO] [stderr] 19 |       for x in 0..how_many_tosses {
[INFO] [stderr]    |           ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]  --> src/main.rs:9:7
[INFO] [stderr]   |
[INFO] [stderr] 9 |   for x in 0..number_of_rounds {
[INFO] [stderr]   |       ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/main.rs:19:11
[INFO] [stderr]    |
[INFO] [stderr] 19 |       for x in 0..how_many_tosses {
[INFO] [stderr]    |           ^ help: consider prefixing with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.05s
[INFO] running `"docker" "inspect" "0341cd6456f1619163a788de678d66410c7c542fdbcaa117b84da23619d919d9"`
[INFO] running `"docker" "rm" "-f" "0341cd6456f1619163a788de678d66410c7c542fdbcaa117b84da23619d919d9"`
[INFO] [stdout] 0341cd6456f1619163a788de678d66410c7c542fdbcaa117b84da23619d919d9