[INFO] updating cached repository FredericDesgreniers/advent_of_code_rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/FredericDesgreniers/advent_of_code_rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/FredericDesgreniers/advent_of_code_rs" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/FredericDesgreniers/advent_of_code_rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/FredericDesgreniers/advent_of_code_rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/FredericDesgreniers/advent_of_code_rs" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/FredericDesgreniers/advent_of_code_rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/FredericDesgreniers/advent_of_code_rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 431d46277d54c93ce73689c6198d3261d6c0216b
[INFO] sha for GitHub repo FredericDesgreniers/advent_of_code_rs: 431d46277d54c93ce73689c6198d3261d6c0216b
[INFO] validating manifest of FredericDesgreniers/advent_of_code_rs on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of FredericDesgreniers/advent_of_code_rs on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing FredericDesgreniers/advent_of_code_rs
[INFO] finished frobbing FredericDesgreniers/advent_of_code_rs
[INFO] frobbed toml for FredericDesgreniers/advent_of_code_rs written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/FredericDesgreniers/advent_of_code_rs/Cargo.toml
[INFO] started frobbing FredericDesgreniers/advent_of_code_rs
[INFO] finished frobbing FredericDesgreniers/advent_of_code_rs
[INFO] frobbed toml for FredericDesgreniers/advent_of_code_rs written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/FredericDesgreniers/advent_of_code_rs/Cargo.toml
[INFO] crate FredericDesgreniers/advent_of_code_rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking FredericDesgreniers/advent_of_code_rs against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-5/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/FredericDesgreniers/advent_of_code_rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4ccc2c2869d2e8443c5c2d0493f2215a14b9d01379dfb0f36353d15f5a3843e3
[INFO] running `"docker" "start" "-a" "4ccc2c2869d2e8443c5c2d0493f2215a14b9d01379dfb0f36353d15f5a3843e3"`
[INFO] [stderr]     Checking rusttype v0.7.3
[INFO] [stderr]     Checking rand v0.6.1
[INFO] [stderr]     Checking advent_of_code v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Repeat`, `SetParameter`
[INFO] [stderr]  --> src/lib.rs:7:20
[INFO] [stderr]   |
[INFO] [stderr] 7 | use gif::{Encoder, Repeat, SetParameter};
[INFO] [stderr]   |                    ^^^^^^  ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rusttype::Point`
[INFO] [stderr]   --> src/lib.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use rusttype::Point;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Index`
[INFO] [stderr]   --> src/lib.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use std::ops::Index;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:53:27
[INFO] [stderr]    |
[INFO] [stderr] 53 |     ) -> Result<Self, Box<Error>> {
[INFO] [stderr]    |                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Repeat`, `SetParameter`
[INFO] [stderr]  --> src/lib.rs:7:20
[INFO] [stderr]   |
[INFO] [stderr] 7 | use gif::{Encoder, Repeat, SetParameter};
[INFO] [stderr]   |                    ^^^^^^  ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rusttype::Point`
[INFO] [stderr]   --> src/lib.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use rusttype::Point;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Index`
[INFO] [stderr]   --> src/lib.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use std::ops::Index;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:53:27
[INFO] [stderr]    |
[INFO] [stderr] 53 |     ) -> Result<Self, Box<Error>> {
[INFO] [stderr]    |                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num_traits::real::Real`
[INFO] [stderr]  --> src/bin/day6.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use num_traits::real::Real;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num_traits::real::Real`
[INFO] [stderr]  --> src/bin/day6.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use num_traits::real::Real;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num_traits::real::Real`
[INFO] [stderr]  --> src/bin/day5.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use num_traits::real::Real;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/bin/day5.rs:7:6
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut input = INPUT.chars().filter(|c| c.is_alphabetic()).collect_vec();
[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: variable `bestLen` should have a snake case name
[INFO] [stderr]   --> src/bin/day5.rs:11:10
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut bestLen = ::std::usize::MAX;
[INFO] [stderr]    |             ^^^^^^^ help: convert the identifier to snake case: `best_len`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `leftC` should have a snake case name
[INFO] [stderr]   --> src/bin/day5.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 |             let leftC = input[i];
[INFO] [stderr]    |                 ^^^^^ help: convert the identifier to snake case: `left_c`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `rightC` should have a snake case name
[INFO] [stderr]   --> src/bin/day5.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 22 |             let rightC = input[i + 1];
[INFO] [stderr]    |                 ^^^^^^ help: convert the identifier to snake case: `right_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num_traits::real::Real`
[INFO] [stderr]  --> src/bin/day5.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use num_traits::real::Real;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/bin/day5.rs:7:6
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut input = INPUT.chars().filter(|c| c.is_alphabetic()).collect_vec();
[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: variable `bestLen` should have a snake case name
[INFO] [stderr]   --> src/bin/day5.rs:11:10
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut bestLen = ::std::usize::MAX;
[INFO] [stderr]    |             ^^^^^^^ help: convert the identifier to snake case: `best_len`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `leftC` should have a snake case name
[INFO] [stderr]   --> src/bin/day5.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 |             let leftC = input[i];
[INFO] [stderr]    |                 ^^^^^ help: convert the identifier to snake case: `left_c`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `rightC` should have a snake case name
[INFO] [stderr]   --> src/bin/day5.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 22 |             let rightC = input[i + 1];
[INFO] [stderr]    |                 ^^^^^^ help: convert the identifier to snake case: `right_c`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr] warning: unused import: `gif::Encoder`
[INFO] [stderr]   --> src/bin/day4.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let mut inputs = INPUT
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]  --> src/bin/day3.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use gif::Encoder;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Cow`
[INFO] [stderr]  --> src/bin/day3.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::borrow::Cow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `update_info`
[INFO] [stderr]    --> src/bin/day3.rs:102:17
[INFO] [stderr]     |
[INFO] [stderr] 102 |         let mut update_info = false;
[INFO] [stderr]     |                 ^^^^^^^^^^^ help: consider prefixing with an underscore: `_update_info`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/bin/day7.rs:81:8
[INFO] [stderr]    |
[INFO] [stderr] 81 |         for (i, worker) in &mut workers.iter_mut().enumerate() {
[INFO] [stderr]    |              ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/day3.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let mut image = File::create("day3_timelapse.gif").unwrap();
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/day3.rs:102:13
[INFO] [stderr]     |
[INFO] [stderr] 102 |         let mut update_info = false;
[INFO] [stderr]     |             ----^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `parser` should have an upper case name
[INFO] [stderr]   --> src/bin/day3.rs:21:20
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub static ref parser: Regex =
[INFO] [stderr]    |                    ^^^^^^ help: convert the identifier to upper case: `PARSER`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/bin/day7.rs:81:8
[INFO] [stderr]    |
[INFO] [stderr] 81 |         for (i, worker) in &mut workers.iter_mut().enumerate() {
[INFO] [stderr]    |              ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `gif::Encoder`
[INFO] [stderr]  --> src/bin/day3.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use gif::Encoder;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Cow`
[INFO] [stderr]  --> src/bin/day3.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::borrow::Cow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/day4.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |     let mut inputs = INPUT
[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: `update_info`
[INFO] [stderr]    --> src/bin/day3.rs:102:17
[INFO] [stderr]     |
[INFO] [stderr] 102 |         let mut update_info = false;
[INFO] [stderr]     |                 ^^^^^^^^^^^ help: consider prefixing with an underscore: `_update_info`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/day3.rs:47:9
[INFO] [stderr]    |
[INFO] [stderr] 47 |     let mut image = File::create("day3_timelapse.gif").unwrap();
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/day3.rs:102:13
[INFO] [stderr]     |
[INFO] [stderr] 102 |         let mut update_info = false;
[INFO] [stderr]     |             ----^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `parser` should have an upper case name
[INFO] [stderr]   --> src/bin/day3.rs:21:20
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub static ref parser: Regex =
[INFO] [stderr]    |                    ^^^^^^ help: convert the identifier to upper case: `PARSER`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.55s
[INFO] running `"docker" "inspect" "4ccc2c2869d2e8443c5c2d0493f2215a14b9d01379dfb0f36353d15f5a3843e3"`
[INFO] running `"docker" "rm" "-f" "4ccc2c2869d2e8443c5c2d0493f2215a14b9d01379dfb0f36353d15f5a3843e3"`
[INFO] [stdout] 4ccc2c2869d2e8443c5c2d0493f2215a14b9d01379dfb0f36353d15f5a3843e3