[INFO] updating cached repository https://github.com/jcrowgey/aoc_2018 [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 9b77ca12e3e1a80080036ec5defcd2d142ff619e [INFO] checking jcrowgey/aoc_2018 against master#4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb for pr-64672 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjcrowgey%2Faoc_2018" "work/builds/worker-2/source"` [INFO] [stderr] Cloning into 'work/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jcrowgey/aoc_2018 on toolchain 4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/jcrowgey/aoc_2018 [INFO] finished tweaking git repo https://github.com/jcrowgey/aoc_2018 [INFO] tweaked toml for git repo https://github.com/jcrowgey/aoc_2018 written to work/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/jcrowgey/aoc_2018 already has a lockfile, it will not be regenerated [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/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" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 55640d4cefd823abb748c2478e799ffa2380adc4ff42760718b2b783064ea5d8 [INFO] running `"docker" "start" "-a" "55640d4cefd823abb748c2478e799ffa2380adc4ff42760718b2b783064ea5d8"` [INFO] [stderr] Checking aoc v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: cannot borrow `char_counts` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/two.rs:14:32 [INFO] [stderr] | [INFO] [stderr] 13 | match char_counts.get(&chr) { [INFO] [stderr] | ----------- immutable borrow occurs here [INFO] [stderr] 14 | Some(count) => char_counts.insert(chr, count + 1), [INFO] [stderr] | ^^^^^^^^^^^ ----- immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `use_counts` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/three.rs:70:36 [INFO] [stderr] | [INFO] [stderr] 69 | match use_counts.get(&key) { [INFO] [stderr] | ---------- immutable borrow occurs here [INFO] [stderr] 70 | Some(count) => use_counts.insert(key, count + 1), [INFO] [stderr] | ^^^^^^^^^^ ----- immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `char_counts` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/two.rs:14:32 [INFO] [stderr] | [INFO] [stderr] 13 | match char_counts.get(&chr) { [INFO] [stderr] | ----------- immutable borrow occurs here [INFO] [stderr] 14 | Some(count) => char_counts.insert(chr, count + 1), [INFO] [stderr] | ^^^^^^^^^^^ ----- immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `use_counts` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/three.rs:70:36 [INFO] [stderr] | [INFO] [stderr] 69 | match use_counts.get(&key) { [INFO] [stderr] | ---------- immutable borrow occurs here [INFO] [stderr] 70 | Some(count) => use_counts.insert(key, count + 1), [INFO] [stderr] | ^^^^^^^^^^ ----- immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.82s [INFO] running `"docker" "inspect" "55640d4cefd823abb748c2478e799ffa2380adc4ff42760718b2b783064ea5d8"` [INFO] running `"docker" "rm" "-f" "55640d4cefd823abb748c2478e799ffa2380adc4ff42760718b2b783064ea5d8"` [INFO] [stdout] 55640d4cefd823abb748c2478e799ffa2380adc4ff42760718b2b783064ea5d8