[INFO] cloning repository https://github.com/jscarrott/adventofcode2018 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jscarrott/adventofcode2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjscarrott%2Fadventofcode2018", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjscarrott%2Fadventofcode2018'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9dad36509886331d834104a6d1fc0b5622c431c4 [INFO] checking jscarrott/adventofcode2018 against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjscarrott%2Fadventofcode2018" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jscarrott/adventofcode2018 on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jscarrott/adventofcode2018 [INFO] finished tweaking git repo https://github.com/jscarrott/adventofcode2018 [INFO] tweaked toml for git repo https://github.com/jscarrott/adventofcode2018 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/jscarrott/adventofcode2018 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2ef26d0924a685b8dec3b8f6c3e1bf8ad3ff52de41d2c86af06fe1e1cb65fa38 [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" "2ef26d0924a685b8dec3b8f6c3e1bf8ad3ff52de41d2c86af06fe1e1cb65fa38", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2ef26d0924a685b8dec3b8f6c3e1bf8ad3ff52de41d2c86af06fe1e1cb65fa38", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2ef26d0924a685b8dec3b8f6c3e1bf8ad3ff52de41d2c86af06fe1e1cb65fa38", kill_on_drop: false }` [INFO] [stdout] 2ef26d0924a685b8dec3b8f6c3e1bf8ad3ff52de41d2c86af06fe1e1cb65fa38 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 13c399ff45290500411da33e895361bf8011fbb209ac4e2ce050a320550bab17 [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" "13c399ff45290500411da33e895361bf8011fbb209ac4e2ce050a320550bab17", kill_on_drop: false }` [INFO] [stderr] Checking AdventOfCode2018 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::env` [INFO] [stdout] --> src/day1.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::env; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::env` [INFO] [stdout] --> src/day2.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::env; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::env` [INFO] [stdout] --> src/day1.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::env; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::env` [INFO] [stdout] --> src/day2.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::env; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `returnVal` [INFO] [stdout] --> src/day2.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let mut returnVal = (false, false); [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_returnVal` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `val` [INFO] [stdout] --> src/day2.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | for val in &count { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_val` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `answer2` [INFO] [stdout] --> src/day2.rs:105:9 [INFO] [stdout] | [INFO] [stdout] 105 | let answer2 = input.iter().fold((0i32, 0i32), |mut acc, x| { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_answer2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: cannot borrow `acc` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/day2.rs:14:30 [INFO] [stdout] | [INFO] [stdout] 13 | match acc.get(x) { [INFO] [stdout] | --- immutable borrow occurs here [INFO] [stdout] 14 | Some(val) => acc.insert(*x, val + 1), [INFO] [stdout] | ^^^ --- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[deny(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/day2.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let mut returnVal = (false, false); [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: unused variable: `returnVal` [INFO] [stdout] --> src/day2.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let mut returnVal = (false, false); [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_returnVal` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `val` [INFO] [stdout] --> src/day2.rs:19:9 [INFO] [stdout] | [INFO] [stdout] 19 | for val in &count { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_val` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `answer2` [INFO] [stdout] --> src/day2.rs:105:9 [INFO] [stdout] | [INFO] [stdout] 105 | let answer2 = input.iter().fold((0i32, 0i32), |mut acc, x| { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_answer2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: cannot borrow `acc` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/day2.rs:14:30 [INFO] [stdout] | [INFO] [stdout] 13 | match acc.get(x) { [INFO] [stdout] | --- immutable borrow occurs here [INFO] [stdout] 14 | Some(val) => acc.insert(*x, val + 1), [INFO] [stdout] | ^^^ --- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs here [INFO] [stdout] | [INFO] [stdout] = note: `#[deny(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] error: aborting due to previous error; 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/day2.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | let mut returnVal = (false, false); [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] [stderr] error: could not compile `AdventOfCode2018` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to previous error; 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "13c399ff45290500411da33e895361bf8011fbb209ac4e2ce050a320550bab17", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "13c399ff45290500411da33e895361bf8011fbb209ac4e2ce050a320550bab17", kill_on_drop: false }` [INFO] [stdout] 13c399ff45290500411da33e895361bf8011fbb209ac4e2ce050a320550bab17