[INFO] updating cached repository bouncenow/advent-of-code-2018-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bouncenow/advent-of-code-2018-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bouncenow/advent-of-code-2018-rust" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/bouncenow/advent-of-code-2018-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/bouncenow/advent-of-code-2018-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bouncenow/advent-of-code-2018-rust" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/bouncenow/advent-of-code-2018-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/bouncenow/advent-of-code-2018-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2991f1d3b24cd95b7c252edd89c8d0519ec5312d
[INFO] sha for GitHub repo bouncenow/advent-of-code-2018-rust: 2991f1d3b24cd95b7c252edd89c8d0519ec5312d
[INFO] validating manifest of bouncenow/advent-of-code-2018-rust 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 bouncenow/advent-of-code-2018-rust 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 bouncenow/advent-of-code-2018-rust
[INFO] finished frobbing bouncenow/advent-of-code-2018-rust
[INFO] frobbed toml for bouncenow/advent-of-code-2018-rust written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/bouncenow/advent-of-code-2018-rust/Cargo.toml
[INFO] started frobbing bouncenow/advent-of-code-2018-rust
[INFO] finished frobbing bouncenow/advent-of-code-2018-rust
[INFO] frobbed toml for bouncenow/advent-of-code-2018-rust written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/bouncenow/advent-of-code-2018-rust/Cargo.toml
[INFO] crate bouncenow/advent-of-code-2018-rust 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 bouncenow/advent-of-code-2018-rust against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/bouncenow/advent-of-code-2018-rust:/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] a4c5f9be47971cffb72aabd07b0ffc2d4abc26aa08272d6dcb65504327534179
[INFO] running `"docker" "start" "-a" "a4c5f9be47971cffb72aabd07b0ffc2d4abc26aa08272d6dcb65504327534179"`
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking scan_fmt v0.1.3
[INFO] [stderr]     Checking raoc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ch3.rs:91:25
[INFO] [stderr]    |
[INFO] [stderr] 91 | fn parse_int(iter: &mut Iterator<Item=char>) -> Option<usize> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=char>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/ch3.rs:95:16
[INFO] [stderr]    |
[INFO] [stderr] 95 |             '0'...'9' => {
[INFO] [stderr]    |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ch3.rs:91:25
[INFO] [stderr]    |
[INFO] [stderr] 91 | fn parse_int(iter: &mut Iterator<Item=char>) -> Option<usize> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=char>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/ch3.rs:95:16
[INFO] [stderr]    |
[INFO] [stderr] 95 |             '0'...'9' => {
[INFO] [stderr]    |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `core::str::<impl str>::trim` that must be used
[INFO] [stderr]   --> src/ch5.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     polymers.trim();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this returns the trimmed string as a slice, without modifying the original
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `core::str::<impl str>::trim` that must be used
[INFO] [stderr]   --> src/ch5.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     polymers.trim();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this returns the trimmed string as a slice, without modifying the original
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.69s
[INFO] running `"docker" "inspect" "a4c5f9be47971cffb72aabd07b0ffc2d4abc26aa08272d6dcb65504327534179"`
[INFO] running `"docker" "rm" "-f" "a4c5f9be47971cffb72aabd07b0ffc2d4abc26aa08272d6dcb65504327534179"`
[INFO] [stdout] a4c5f9be47971cffb72aabd07b0ffc2d4abc26aa08272d6dcb65504327534179