[INFO] cloning repository https://github.com/jcrowgey/aoc_2018 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jcrowgey/aoc_2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjcrowgey%2Faoc_2018", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjcrowgey%2Faoc_2018'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9b77ca12e3e1a80080036ec5defcd2d142ff619e [INFO] checking jcrowgey/aoc_2018 against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjcrowgey%2Faoc_2018" "/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/jcrowgey/aoc_2018 on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [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 /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/jcrowgey/aoc_2018 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/jobserver:/tmp/crater-runner-fifo:rw,Z" "-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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 19dc2f3e57e6248bbe9a5eb746187bdbca1f8b77040066567217eadc98a7ad16 [INFO] running `Command { std: "docker" "start" "-a" "19dc2f3e57e6248bbe9a5eb746187bdbca1f8b77040066567217eadc98a7ad16", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "19dc2f3e57e6248bbe9a5eb746187bdbca1f8b77040066567217eadc98a7ad16", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "19dc2f3e57e6248bbe9a5eb746187bdbca1f8b77040066567217eadc98a7ad16", kill_on_drop: false }` [INFO] [stdout] 19dc2f3e57e6248bbe9a5eb746187bdbca1f8b77040066567217eadc98a7ad16 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/jobserver:/tmp/crater-runner-fifo:rw,Z" "-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" "RUSTUP_TOOLCHAIN=3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "-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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/tmp/crater-runner-fifo/jobserver-crater-fwd" "/opt/rustwide/cargo-home/bin/cargo" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 8135037115bc765413ebd14b683c92831dae0fa5c08d98049231058a20ced45d [INFO] running `Command { std: "docker" "start" "-a" "8135037115bc765413ebd14b683c92831dae0fa5c08d98049231058a20ced45d", kill_on_drop: false }` [INFO] [stderr] Checking aoc v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: cannot borrow `char_counts` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/two.rs:14:32 [INFO] [stdout] | [INFO] [stdout] 13 | match char_counts.get(&chr) { [INFO] [stdout] | ----------- immutable borrow occurs here [INFO] [stdout] 14 | Some(count) => char_counts.insert(chr, count + 1), [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: cannot borrow `use_counts` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/three.rs:70:36 [INFO] [stdout] | [INFO] [stdout] 69 | match use_counts.get(&key) { [INFO] [stdout] | ---------- immutable borrow occurs here [INFO] [stdout] 70 | Some(count) => use_counts.insert(key, count + 1), [INFO] [stdout] | ^^^^^^^^^^ ----- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [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: cannot borrow `char_counts` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/two.rs:14:32 [INFO] [stdout] | [INFO] [stdout] 13 | match char_counts.get(&chr) { [INFO] [stdout] | ----------- immutable borrow occurs here [INFO] [stdout] 14 | Some(count) => char_counts.insert(chr, count + 1), [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: cannot borrow `use_counts` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/three.rs:70:36 [INFO] [stdout] | [INFO] [stdout] 69 | match use_counts.get(&key) { [INFO] [stdout] | ---------- immutable borrow occurs here [INFO] [stdout] 70 | Some(count) => use_counts.insert(key, count + 1), [INFO] [stdout] | ^^^^^^^^^^ ----- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [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] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.18s [INFO] running `Command { std: "docker" "inspect" "8135037115bc765413ebd14b683c92831dae0fa5c08d98049231058a20ced45d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8135037115bc765413ebd14b683c92831dae0fa5c08d98049231058a20ced45d", kill_on_drop: false }` [INFO] [stdout] 8135037115bc765413ebd14b683c92831dae0fa5c08d98049231058a20ced45d