[INFO] updating cached repository tak0-auk/calculator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tak0-auk/calculator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tak0-auk/calculator" "work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/tak0-auk/calculator"`
[INFO] [stderr] Cloning into 'work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/tak0-auk/calculator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tak0-auk/calculator" "work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/tak0-auk/calculator"`
[INFO] [stderr] Cloning into 'work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/tak0-auk/calculator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c85eff9291ed55ceda70993db222d0947faa782f
[INFO] sha for GitHub repo tak0-auk/calculator: c85eff9291ed55ceda70993db222d0947faa782f
[INFO] validating manifest of tak0-auk/calculator on toolchain master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tak0-auk/calculator on toolchain try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tak0-auk/calculator
[INFO] finished frobbing tak0-auk/calculator
[INFO] frobbed toml for tak0-auk/calculator written to work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/tak0-auk/calculator/Cargo.toml
[INFO] started frobbing tak0-auk/calculator
[INFO] finished frobbing tak0-auk/calculator
[INFO] frobbed toml for tak0-auk/calculator written to work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/tak0-auk/calculator/Cargo.toml
[INFO] crate tak0-auk/calculator already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking tak0-auk/calculator against try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af for pr-61753
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61753/worker-4/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/tak0-auk/calculator:/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" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3f68f12eb3557e525ee449be3b1aa2f8bc2a76a207680b23446ba9aa1f674b52
[INFO] running `"docker" "start" "-a" "3f68f12eb3557e525ee449be3b1aa2f8bc2a76a207680b23446ba9aa1f674b52"`
[INFO] [stderr]     Checking calculator v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `flg`
[INFO] [stderr]   --> src/main.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut flg = false;
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_flg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut flg = false;
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `push_p`
[INFO] [stderr]   --> src/main.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn push_p(pushed: &mut Vec<i64>, p: i64) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `flg`
[INFO] [stderr]   --> src/main.rs:16:13
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut flg = false;
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_flg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let mut flg = false;
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `push_p`
[INFO] [stderr]   --> src/main.rs:49:1
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn push_p(pushed: &mut Vec<i64>, p: i64) {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `"docker" "inspect" "3f68f12eb3557e525ee449be3b1aa2f8bc2a76a207680b23446ba9aa1f674b52"`
[INFO] running `"docker" "rm" "-f" "3f68f12eb3557e525ee449be3b1aa2f8bc2a76a207680b23446ba9aa1f674b52"`
[INFO] [stdout] 3f68f12eb3557e525ee449be3b1aa2f8bc2a76a207680b23446ba9aa1f674b52