[INFO] cloning repository https://github.com/larsmoil/adventofcode2020 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/larsmoil/adventofcode2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flarsmoil%2Fadventofcode2020", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flarsmoil%2Fadventofcode2020'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f42d5c9837fefc72109163cea3275b857eaf3e36 [INFO] checking larsmoil/adventofcode2020 against try#4a23c45c7893f1416456144e3883cc48ea91722e for pr-82322 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flarsmoil%2Fadventofcode2020" "/workspace/builds/worker-9/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/larsmoil/adventofcode2020 on toolchain 4a23c45c7893f1416456144e3883cc48ea91722e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/larsmoil/adventofcode2020 [INFO] finished tweaking git repo https://github.com/larsmoil/adventofcode2020 [INFO] tweaked toml for git repo https://github.com/larsmoil/adventofcode2020 written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/larsmoil/adventofcode2020 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded array_tool v1.0.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9ec35cffdf7b8dffa15b0cc7f7f8a2535cab11c21df2a6f69c70a5d67d27ff9d [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "9ec35cffdf7b8dffa15b0cc7f7f8a2535cab11c21df2a6f69c70a5d67d27ff9d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9ec35cffdf7b8dffa15b0cc7f7f8a2535cab11c21df2a6f69c70a5d67d27ff9d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9ec35cffdf7b8dffa15b0cc7f7f8a2535cab11c21df2a6f69c70a5d67d27ff9d", kill_on_drop: false }` [INFO] [stdout] 9ec35cffdf7b8dffa15b0cc7f7f8a2535cab11c21df2a6f69c70a5d67d27ff9d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+4a23c45c7893f1416456144e3883cc48ea91722e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 91997e288f94c127a8818508013ca2a899622fe723c0b2ad379b28e8af4c7c70 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "91997e288f94c127a8818508013ca2a899622fe723c0b2ad379b28e8af4c7c70", kill_on_drop: false }` [INFO] [stderr] Checking array_tool v1.0.3 [INFO] [stderr] Checking adventofcode-2020 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/day04.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let mut entries = passport [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: cannot borrow `required_fields` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/day04.rs:26:13 [INFO] [stdout] | [INFO] [stdout] 23 | let required_field = required_fields.iter().enumerate().find(|(_, &required_field)| required_field == field); [INFO] [stdout] | --------------- immutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 26 | required_fields.remove(required_field.unwrap().0); [INFO] [stdout] | ^^^^^^^^^^^^^^^ -------------- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/day04.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | let mut entries = passport [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: cannot borrow `required_fields` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/day04.rs:26:13 [INFO] [stdout] | [INFO] [stdout] 23 | let required_field = required_fields.iter().enumerate().find(|(_, &required_field)| required_field == field); [INFO] [stdout] | --------------- immutable borrow occurs here [INFO] [stdout] ... [INFO] [stdout] 26 | required_fields.remove(required_field.unwrap().0); [INFO] [stdout] | ^^^^^^^^^^^^^^^ -------------- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default [INFO] [stdout] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stdout] = note: for more information, see issue #59159 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.24s [INFO] running `Command { std: "docker" "inspect" "91997e288f94c127a8818508013ca2a899622fe723c0b2ad379b28e8af4c7c70", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "91997e288f94c127a8818508013ca2a899622fe723c0b2ad379b28e8af4c7c70", kill_on_drop: false }` [INFO] [stdout] 91997e288f94c127a8818508013ca2a899622fe723c0b2ad379b28e8af4c7c70