[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#c919f490bbcd2b29b74016101f7ec71aaa24bdbb for pr-79073 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjcrowgey%2Faoc_2018" "/workspace/builds/worker-12/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jcrowgey/aoc_2018 on toolchain c919f490bbcd2b29b74016101f7ec71aaa24bdbb [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "read-manifest" "--manifest-path" "Cargo.toml", 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-12/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" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "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] de6d6b61dbbcea1da1b96dce1fcadb51543e26f759eb0bdfc62ed467326c4a8d [INFO] running `Command { std: "docker" "start" "-a" "de6d6b61dbbcea1da1b96dce1fcadb51543e26f759eb0bdfc62ed467326c4a8d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "de6d6b61dbbcea1da1b96dce1fcadb51543e26f759eb0bdfc62ed467326c4a8d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de6d6b61dbbcea1da1b96dce1fcadb51543e26f759eb0bdfc62ed467326c4a8d", kill_on_drop: false }` [INFO] [stdout] de6d6b61dbbcea1da1b96dce1fcadb51543e26f759eb0bdfc62ed467326c4a8d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+c919f490bbcd2b29b74016101f7ec71aaa24bdbb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 959b344eb57eb936b32687c83116f2c3763d1257462a4b50e556723140bd164d [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" "959b344eb57eb936b32687c83116f2c3763d1257462a4b50e556723140bd164d", 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: 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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.91s [INFO] running `Command { std: "docker" "inspect" "959b344eb57eb936b32687c83116f2c3763d1257462a4b50e556723140bd164d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "959b344eb57eb936b32687c83116f2c3763d1257462a4b50e556723140bd164d", kill_on_drop: false }` [INFO] [stdout] 959b344eb57eb936b32687c83116f2c3763d1257462a4b50e556723140bd164d