[INFO] updating cached repository jscarrott/adventofcode2018 [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/jscarrott/adventofcode2018 [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/jscarrott/adventofcode2018" "work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/jscarrott/adventofcode2018"` [INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/jscarrott/adventofcode2018'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/jscarrott/adventofcode2018" "work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/jscarrott/adventofcode2018"` [INFO] [stderr] Cloning into 'work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/jscarrott/adventofcode2018'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 9dad36509886331d834104a6d1fc0b5622c431c4 [INFO] sha for GitHub repo jscarrott/adventofcode2018: 9dad36509886331d834104a6d1fc0b5622c431c4 [INFO] validating manifest of jscarrott/adventofcode2018 on toolchain master#a850a426491e14186af2250549bf41256b5938d2 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of jscarrott/adventofcode2018 on toolchain try#06a150c7d11500b41499224f165e9de1de096768 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing jscarrott/adventofcode2018 [INFO] finished frobbing jscarrott/adventofcode2018 [INFO] frobbed toml for jscarrott/adventofcode2018 written to work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/jscarrott/adventofcode2018/Cargo.toml [INFO] started frobbing jscarrott/adventofcode2018 [INFO] finished frobbing jscarrott/adventofcode2018 [INFO] frobbed toml for jscarrott/adventofcode2018 written to work/ex/pr-60162/sources/try#06a150c7d11500b41499224f165e9de1de096768/gh/jscarrott/adventofcode2018/Cargo.toml [INFO] crate jscarrott/adventofcode2018 already has a lockfile, it will not be regenerated [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+06a150c7d11500b41499224f165e9de1de096768-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking jscarrott/adventofcode2018 against master#a850a426491e14186af2250549bf41256b5938d2 for pr-60162 [INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60162/worker-2/master#a850a426491e14186af2250549bf41256b5938d2:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60162/sources/master#a850a426491e14186af2250549bf41256b5938d2/gh/jscarrott/adventofcode2018:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a850a426491e14186af2250549bf41256b5938d2-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 5e5be642fae0a68d8f27bbdd2704634b1743b15f4d2babd0235b900c966cfac0 [INFO] running `"docker" "start" "-a" "5e5be642fae0a68d8f27bbdd2704634b1743b15f4d2babd0235b900c966cfac0"` [INFO] [stderr] Checking AdventOfCode2018 v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::env` [INFO] [stderr] --> src/day1.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::env; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::env` [INFO] [stderr] --> src/day2.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::env; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::env` [INFO] [stderr] --> src/day1.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::env; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::env` [INFO] [stderr] --> src/day2.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use std::env; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `returnVal` [INFO] [stderr] --> src/day2.rs:6:13 [INFO] [stderr] | [INFO] [stderr] 6 | let mut returnVal = (false, false); [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_returnVal` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `val` [INFO] [stderr] --> src/day2.rs:19:9 [INFO] [stderr] | [INFO] [stderr] 19 | for val in &count { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_val` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `answer2` [INFO] [stderr] --> src/day2.rs:105:9 [INFO] [stderr] | [INFO] [stderr] 105 | let answer2 = input.iter().fold((0i32, 0i32), |mut acc, x| { [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_answer2` [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `acc` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/day2.rs:14:30 [INFO] [stderr] | [INFO] [stderr] 13 | match acc.get(x) { [INFO] [stderr] | --- immutable borrow occurs here [INFO] [stderr] 14 | Some(val) => acc.insert(*x, val + 1), [INFO] [stderr] | ^^^ --- immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: #[warn(mutable_borrow_reservation_conflict)] on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/day2.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let mut returnVal = (false, false); [INFO] [stderr] | ----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `returnVal` [INFO] [stderr] --> src/day2.rs:6:13 [INFO] [stderr] | [INFO] [stderr] 6 | let mut returnVal = (false, false); [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_returnVal` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `val` [INFO] [stderr] --> src/day2.rs:19:9 [INFO] [stderr] | [INFO] [stderr] 19 | for val in &count { [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_val` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `answer2` [INFO] [stderr] --> src/day2.rs:105:9 [INFO] [stderr] | [INFO] [stderr] 105 | let answer2 = input.iter().fold((0i32, 0i32), |mut acc, x| { [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_answer2` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `run` [INFO] [stderr] --> src/day1.rs:5:1 [INFO] [stderr] | [INFO] [stderr] 5 | pub fn run() { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: crate `AdventOfCode2018` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `advent_of_code2018` [INFO] [stderr] [INFO] [stderr] warning: variable `returnVal` should have a snake case name [INFO] [stderr] --> src/day2.rs:6:13 [INFO] [stderr] | [INFO] [stderr] 6 | let mut returnVal = (false, false); [INFO] [stderr] | ^^^^^^^^^ help: convert the identifier to snake case: `return_val` [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `acc` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/day2.rs:14:30 [INFO] [stderr] | [INFO] [stderr] 13 | match acc.get(x) { [INFO] [stderr] | --- immutable borrow occurs here [INFO] [stderr] 14 | Some(val) => acc.insert(*x, val + 1), [INFO] [stderr] | ^^^ --- immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs here [INFO] [stderr] | [INFO] [stderr] = note: #[warn(mutable_borrow_reservation_conflict)] on by default [INFO] [stderr] = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future [INFO] [stderr] = note: for more information, see issue #59159 [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/day2.rs:6:9 [INFO] [stderr] | [INFO] [stderr] 6 | let mut returnVal = (false, false); [INFO] [stderr] | ----^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `run` [INFO] [stderr] --> src/day1.rs:5:1 [INFO] [stderr] | [INFO] [stderr] 5 | pub fn run() { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: crate `AdventOfCode2018` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: #[warn(non_snake_case)] on by default [INFO] [stderr] = help: convert the identifier to snake case: `advent_of_code2018` [INFO] [stderr] [INFO] [stderr] warning: variable `returnVal` should have a snake case name [INFO] [stderr] --> src/day2.rs:6:13 [INFO] [stderr] | [INFO] [stderr] 6 | let mut returnVal = (false, false); [INFO] [stderr] | ^^^^^^^^^ help: convert the identifier to snake case: `return_val` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.38s [INFO] running `"docker" "inspect" "5e5be642fae0a68d8f27bbdd2704634b1743b15f4d2babd0235b900c966cfac0"` [INFO] running `"docker" "rm" "-f" "5e5be642fae0a68d8f27bbdd2704634b1743b15f4d2babd0235b900c966cfac0"` [INFO] [stdout] 5e5be642fae0a68d8f27bbdd2704634b1743b15f4d2babd0235b900c966cfac0