[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#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjscarrott%2Fadventofcode2018" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jscarrott/adventofcode2018 on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "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-1/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" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "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] d9125a88151333ac38cc6ccb758f8aef4ec33f8503cb1376d5bac745c534e705
[INFO] running `Command { std: "docker" "start" "-a" "d9125a88151333ac38cc6ccb758f8aef4ec33f8503cb1376d5bac745c534e705", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9125a88151333ac38cc6ccb758f8aef4ec33f8503cb1376d5bac745c534e705", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9125a88151333ac38cc6ccb758f8aef4ec33f8503cb1376d5bac745c534e705", kill_on_drop: false }`
[INFO] [stdout] d9125a88151333ac38cc6ccb758f8aef4ec33f8503cb1376d5bac745c534e705
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 171f13bd157a12f80ad8c37908792b6ca888e258c8e6b1f923eb57a7fadb21ea
[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" "171f13bd157a12f80ad8c37908792b6ca888e258c8e6b1f923eb57a7fadb21ea", 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] 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] warning: 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: `#[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 <https://github.com/rust-lang/rust/issues/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: 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: `#[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 <https://github.com/rust-lang/rust/issues/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: function is never used: `run`
[INFO] [stdout]  --> src/day1.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `AdventOfCode2018` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `advent_of_code2018`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `returnVal` should have a snake case name
[INFO] [stdout]  --> src/day2.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut returnVal = (false, false);
[INFO] [stdout]   |             ^^^^^^^^^ help: convert the identifier to snake case: `return_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> src/day1.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn run() {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `AdventOfCode2018` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `advent_of_code2018`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `returnVal` should have a snake case name
[INFO] [stdout]  --> src/day2.rs:6:13
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let mut returnVal = (false, false);
[INFO] [stdout]   |             ^^^^^^^^^ help: convert the identifier to snake case: `return_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "171f13bd157a12f80ad8c37908792b6ca888e258c8e6b1f923eb57a7fadb21ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "171f13bd157a12f80ad8c37908792b6ca888e258c8e6b1f923eb57a7fadb21ea", kill_on_drop: false }`
[INFO] [stdout] 171f13bd157a12f80ad8c37908792b6ca888e258c8e6b1f923eb57a7fadb21ea