[INFO] updating cached repository alexcrichton/rust-fannkuch-js-and-wasm
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/alexcrichton/rust-fannkuch-js-and-wasm
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/alexcrichton/rust-fannkuch-js-and-wasm" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/alexcrichton/rust-fannkuch-js-and-wasm"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/alexcrichton/rust-fannkuch-js-and-wasm'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/alexcrichton/rust-fannkuch-js-and-wasm" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/alexcrichton/rust-fannkuch-js-and-wasm"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/alexcrichton/rust-fannkuch-js-and-wasm'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 76c51c3e13edc0f91c1ed35b981ed94619ccd9cc
[INFO] sha for GitHub repo alexcrichton/rust-fannkuch-js-and-wasm: 76c51c3e13edc0f91c1ed35b981ed94619ccd9cc
[INFO] validating manifest of alexcrichton/rust-fannkuch-js-and-wasm on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of alexcrichton/rust-fannkuch-js-and-wasm on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing alexcrichton/rust-fannkuch-js-and-wasm
[INFO] finished frobbing alexcrichton/rust-fannkuch-js-and-wasm
[INFO] frobbed toml for alexcrichton/rust-fannkuch-js-and-wasm written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/alexcrichton/rust-fannkuch-js-and-wasm/Cargo.toml
[INFO] started frobbing alexcrichton/rust-fannkuch-js-and-wasm
[INFO] finished frobbing alexcrichton/rust-fannkuch-js-and-wasm
[INFO] frobbed toml for alexcrichton/rust-fannkuch-js-and-wasm written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/alexcrichton/rust-fannkuch-js-and-wasm/Cargo.toml
[INFO] crate alexcrichton/rust-fannkuch-js-and-wasm already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking alexcrichton/rust-fannkuch-js-and-wasm against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-4/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/alexcrichton/rust-fannkuch-js-and-wasm:/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" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a8f4773c1b01894c330a486daf2dc75ffbba3361c3b45ad2bb9e26c69a67bf13
[INFO] running `"docker" "start" "-a" "a8f4773c1b01894c330a486daf2dc75ffbba3361c3b45ad2bb9e26c69a67bf13"`
[INFO] [stderr]     Checking rust-fannkuch-js-and-wasm v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `checksum`
[INFO] [stderr]    --> src/lib.rs:125:10
[INFO] [stderr]     |
[INFO] [stderr] 125 |     let (checksum, maxflips) = fannkuch(n);
[INFO] [stderr]     |          ^^^^^^^^ help: consider prefixing with an underscore: `_checksum`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `maxflips`
[INFO] [stderr]    --> src/lib.rs:125:20
[INFO] [stderr]     |
[INFO] [stderr] 125 |     let (checksum, maxflips) = fannkuch(n);
[INFO] [stderr]     |                    ^^^^^^^^ help: consider prefixing with an underscore: `_maxflips`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `checksum`
[INFO] [stderr]    --> src/lib.rs:125:10
[INFO] [stderr]     |
[INFO] [stderr] 125 |     let (checksum, maxflips) = fannkuch(n);
[INFO] [stderr]     |          ^^^^^^^^ help: consider prefixing with an underscore: `_checksum`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `maxflips`
[INFO] [stderr]    --> src/lib.rs:125:20
[INFO] [stderr]     |
[INFO] [stderr] 125 |     let (checksum, maxflips) = fannkuch(n);
[INFO] [stderr]     |                    ^^^^^^^^ help: consider prefixing with an underscore: `_maxflips`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `"docker" "inspect" "a8f4773c1b01894c330a486daf2dc75ffbba3361c3b45ad2bb9e26c69a67bf13"`
[INFO] running `"docker" "rm" "-f" "a8f4773c1b01894c330a486daf2dc75ffbba3361c3b45ad2bb9e26c69a67bf13"`
[INFO] [stdout] a8f4773c1b01894c330a486daf2dc75ffbba3361c3b45ad2bb9e26c69a67bf13