[INFO] updating cached repository jcrowgey/aoc_2018 [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/jcrowgey/aoc_2018 [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/jcrowgey/aoc_2018" "work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/jcrowgey/aoc_2018"` [INFO] [stderr] Cloning into 'work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/jcrowgey/aoc_2018'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/jcrowgey/aoc_2018" "work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/jcrowgey/aoc_2018"` [INFO] [stderr] Cloning into 'work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/jcrowgey/aoc_2018'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 9b77ca12e3e1a80080036ec5defcd2d142ff619e [INFO] sha for GitHub repo jcrowgey/aoc_2018: 9b77ca12e3e1a80080036ec5defcd2d142ff619e [INFO] validating manifest of jcrowgey/aoc_2018 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 jcrowgey/aoc_2018 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 jcrowgey/aoc_2018 [INFO] finished frobbing jcrowgey/aoc_2018 [INFO] frobbed toml for jcrowgey/aoc_2018 written to work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/jcrowgey/aoc_2018/Cargo.toml [INFO] started frobbing jcrowgey/aoc_2018 [INFO] finished frobbing jcrowgey/aoc_2018 [INFO] frobbed toml for jcrowgey/aoc_2018 written to work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/jcrowgey/aoc_2018/Cargo.toml [INFO] crate jcrowgey/aoc_2018 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] [stderr] Blocking waiting for file lock on package cache lock [INFO] checking jcrowgey/aoc_2018 against try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af for pr-61753 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61753/worker-5/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/jcrowgey/aoc_2018:/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] e4e081cbd9c4e9e7acc70e19edeee0de8a6999eb732a773807a03d6f1fb43a7c [INFO] running `"docker" "start" "-a" "e4e081cbd9c4e9e7acc70e19edeee0de8a6999eb732a773807a03d6f1fb43a7c"` [INFO] [stderr] Checking aoc v0.1.0 (/opt/crater/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 1.21s [INFO] running `"docker" "inspect" "e4e081cbd9c4e9e7acc70e19edeee0de8a6999eb732a773807a03d6f1fb43a7c"` [INFO] running `"docker" "rm" "-f" "e4e081cbd9c4e9e7acc70e19edeee0de8a6999eb732a773807a03d6f1fb43a7c"` [INFO] [stdout] e4e081cbd9c4e9e7acc70e19edeee0de8a6999eb732a773807a03d6f1fb43a7c