[INFO] cloning repository udoprog/rust-advent-of-code-2018
[INFO] running `"git" "clone" "--bare" "git://github.com/udoprog/rust-advent-of-code-2018.git" "work/cache/sources/gh/udoprog/rust-advent-of-code-2018"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/udoprog/rust-advent-of-code-2018'...
[INFO] running `"git" "clone" "work/cache/sources/gh/udoprog/rust-advent-of-code-2018" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/udoprog/rust-advent-of-code-2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/udoprog/rust-advent-of-code-2018'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/udoprog/rust-advent-of-code-2018" "work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/udoprog/rust-advent-of-code-2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/udoprog/rust-advent-of-code-2018'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ba21de0185ee65f3f0c4c41e6360b2348dcfabf7
[INFO] sha for GitHub repo udoprog/rust-advent-of-code-2018: ba21de0185ee65f3f0c4c41e6360b2348dcfabf7
[INFO] validating manifest of udoprog/rust-advent-of-code-2018 on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of udoprog/rust-advent-of-code-2018 on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing udoprog/rust-advent-of-code-2018
[INFO] finished frobbing udoprog/rust-advent-of-code-2018
[INFO] frobbed toml for udoprog/rust-advent-of-code-2018 written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/udoprog/rust-advent-of-code-2018/Cargo.toml
[INFO] started frobbing udoprog/rust-advent-of-code-2018
[INFO] finished frobbing udoprog/rust-advent-of-code-2018
[INFO] frobbed toml for udoprog/rust-advent-of-code-2018 written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/udoprog/rust-advent-of-code-2018/Cargo.toml
[INFO] crate udoprog/rust-advent-of-code-2018 has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hashbrown v0.1.7
[INFO] [stderr]   Downloaded nalgebra v0.16.12
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking udoprog/rust-advent-of-code-2018 against try#290ac7b29f41ff9fa5232f9a1116ea71a3501063 for pr-58899
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-6/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/udoprog/rust-advent-of-code-2018:/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" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f5de95b77dee1c8a0834b1df30e411bb4946de5bc0be1ea03ea842fd149d4032
[INFO] running `"docker" "start" "-a" "f5de95b77dee1c8a0834b1df30e411bb4946de5bc0be1ea03ea842fd149d4032"`
[INFO] [stderr]    Compiling arrayvec v0.4.9
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]     Checking libm v0.1.2
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]    Compiling ncurses v5.97.0
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking approx v0.3.1
[INFO] [stderr]     Checking num_cpus v1.9.0
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking time v0.1.41
[INFO] [stderr]     Checking generic-array v0.11.1
[INFO] [stderr]     Checking hashbrown v0.1.7
[INFO] [stderr]     Checking alga v0.7.2
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking num-rational v0.2.1
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]     Checking nalgebra v0.16.12
[INFO] [stderr]     Checking aoc2018 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `prev` is never read
[INFO] [stderr]    --> src/bin/day19.rs:278:13
[INFO] [stderr]     |
[INFO] [stderr] 278 |     let mut prev = None;
[INFO] [stderr]     |             ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `prev` is never read
[INFO] [stderr]    --> src/bin/day19.rs:278:13
[INFO] [stderr]     |
[INFO] [stderr] 278 |     let mut prev = None;
[INFO] [stderr]     |             ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `"docker" "inspect" "f5de95b77dee1c8a0834b1df30e411bb4946de5bc0be1ea03ea842fd149d4032"`
[INFO] running `"docker" "rm" "-f" "f5de95b77dee1c8a0834b1df30e411bb4946de5bc0be1ea03ea842fd149d4032"`
[INFO] [stdout] f5de95b77dee1c8a0834b1df30e411bb4946de5bc0be1ea03ea842fd149d4032