[INFO] updating cached repository cjmochrie/Advent-of-Code-2017
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cjmochrie/Advent-of-Code-2017
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cjmochrie/Advent-of-Code-2017" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/cjmochrie/Advent-of-Code-2017"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/cjmochrie/Advent-of-Code-2017'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cjmochrie/Advent-of-Code-2017" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/cjmochrie/Advent-of-Code-2017"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/cjmochrie/Advent-of-Code-2017'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4dee8ec92972b670e8feb5086cb2db7381608423
[INFO] sha for GitHub repo cjmochrie/Advent-of-Code-2017: 4dee8ec92972b670e8feb5086cb2db7381608423
[INFO] validating manifest of cjmochrie/Advent-of-Code-2017 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 cjmochrie/Advent-of-Code-2017 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 cjmochrie/Advent-of-Code-2017
[INFO] finished frobbing cjmochrie/Advent-of-Code-2017
[INFO] frobbed toml for cjmochrie/Advent-of-Code-2017 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/cjmochrie/Advent-of-Code-2017/Cargo.toml
[INFO] started frobbing cjmochrie/Advent-of-Code-2017
[INFO] finished frobbing cjmochrie/Advent-of-Code-2017
[INFO] frobbed toml for cjmochrie/Advent-of-Code-2017 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/cjmochrie/Advent-of-Code-2017/Cargo.toml
[INFO] crate cjmochrie/Advent-of-Code-2017 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking cjmochrie/Advent-of-Code-2017 against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-2/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/cjmochrie/Advent-of-Code-2017:/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] 366b2bebe857985068e960f711b3c180ab241b85422ae61f5805047acd7091c2
[INFO] running `"docker" "start" "-a" "366b2bebe857985068e960f711b3c180ab241b85422ae61f5805047acd7091c2"`
[INFO] [stderr]     Checking libc v0.2.34
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking regex v0.2.3
[INFO] [stderr]     Checking advent_of_code v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/problems/day_2.rs:23:51
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn string_to_digit_rows<'a>(data: &'a str) -> Box<Iterator<Item=Vec<u32>> + 'a> {
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Vec<u32>> + 'a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Op` is imported redundantly
[INFO] [stderr]   --> src/problems/day_8.rs:98:7
[INFO] [stderr]    |
[INFO] [stderr] 36 | / enum Op {
[INFO] [stderr] 37 | |   Inc,
[INFO] [stderr] 38 | |   Dec,
[INFO] [stderr] 39 | | }
[INFO] [stderr]    | |_- the item `Op` is already defined here
[INFO] [stderr] ...
[INFO] [stderr] 98 |     use self::Op;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:11:51
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn run(config: &Config) -> Result<String, Box<Error>> {
[INFO] [stderr]    |                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/problems/day_2.rs:23:51
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn string_to_digit_rows<'a>(data: &'a str) -> Box<Iterator<Item=Vec<u32>> + 'a> {
[INFO] [stderr]    |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Vec<u32>> + 'a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Op` is imported redundantly
[INFO] [stderr]   --> src/problems/day_8.rs:98:7
[INFO] [stderr]    |
[INFO] [stderr] 36 | / enum Op {
[INFO] [stderr] 37 | |   Inc,
[INFO] [stderr] 38 | |   Dec,
[INFO] [stderr] 39 | | }
[INFO] [stderr]    | |_- the item `Op` is already defined here
[INFO] [stderr] ...
[INFO] [stderr] 98 |     use self::Op;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:11:51
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn run(config: &Config) -> Result<String, Box<Error>> {
[INFO] [stderr]    |                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.59s
[INFO] running `"docker" "inspect" "366b2bebe857985068e960f711b3c180ab241b85422ae61f5805047acd7091c2"`
[INFO] running `"docker" "rm" "-f" "366b2bebe857985068e960f711b3c180ab241b85422ae61f5805047acd7091c2"`
[INFO] [stdout] 366b2bebe857985068e960f711b3c180ab241b85422ae61f5805047acd7091c2