[INFO] updating cached repository nrxus/advent_2017
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nrxus/advent_2017
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nrxus/advent_2017" "work/ex/beta-1.37-6/sources/1.36.0/gh/nrxus/advent_2017"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/nrxus/advent_2017'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nrxus/advent_2017" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nrxus/advent_2017"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nrxus/advent_2017'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4abb77f550878b32611a23958c89ad9c31662b8d
[INFO] sha for GitHub repo nrxus/advent_2017: 4abb77f550878b32611a23958c89ad9c31662b8d
[INFO] validating manifest of nrxus/advent_2017 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nrxus/advent_2017 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nrxus/advent_2017
[INFO] finished frobbing nrxus/advent_2017
[INFO] frobbed toml for nrxus/advent_2017 written to work/ex/beta-1.37-6/sources/1.36.0/gh/nrxus/advent_2017/Cargo.toml
[INFO] started frobbing nrxus/advent_2017
[INFO] finished frobbing nrxus/advent_2017
[INFO] frobbed toml for nrxus/advent_2017 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/nrxus/advent_2017/Cargo.toml
[INFO] crate nrxus/advent_2017 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing nrxus/advent_2017 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/nrxus/advent_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=warn" "-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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 1dc9075ae0f1a89387616499613f2db79b44e9aadd18d1aca6789e7d3da790e6
[INFO] running `"docker" "start" "-a" "1dc9075ae0f1a89387616499613f2db79b44e9aadd18d1aca6789e7d3da790e6"`
[INFO] [stderr]    Compiling advent_2017 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]   --> src/solvers/three.rs:21:10
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn b(input: u32) -> u32 {
[INFO] [stderr]    |          ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `"docker" "inspect" "1dc9075ae0f1a89387616499613f2db79b44e9aadd18d1aca6789e7d3da790e6"`
[INFO] running `"docker" "rm" "-f" "1dc9075ae0f1a89387616499613f2db79b44e9aadd18d1aca6789e7d3da790e6"`
[INFO] [stdout] 1dc9075ae0f1a89387616499613f2db79b44e9aadd18d1aca6789e7d3da790e6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/nrxus/advent_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=warn" "-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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3d814beac8d11a0125582d733584845d448ded09f09d66b736cd5df2b663ee94
[INFO] running `"docker" "start" "-a" "3d814beac8d11a0125582d733584845d448ded09f09d66b736cd5df2b663ee94"`
[INFO] [stderr]    Compiling advent_2017 v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]   --> src/solvers/three.rs:21:10
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn b(input: u32) -> u32 {
[INFO] [stderr]    |          ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `"docker" "inspect" "3d814beac8d11a0125582d733584845d448ded09f09d66b736cd5df2b663ee94"`
[INFO] running `"docker" "rm" "-f" "3d814beac8d11a0125582d733584845d448ded09f09d66b736cd5df2b663ee94"`
[INFO] [stdout] 3d814beac8d11a0125582d733584845d448ded09f09d66b736cd5df2b663ee94
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/nrxus/advent_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=warn" "-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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 6da9b62820e953ff56c8f609f8cd5ac391687a4bb8881f29993d7072b3e5497d
[INFO] running `"docker" "start" "-a" "6da9b62820e953ff56c8f609f8cd5ac391687a4bb8881f29993d7072b3e5497d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/advent_2017-536f08cc33523f95
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test solvers::one::test::a_consecutive ... ok
[INFO] [stdout] test solvers::one::test::b_perfect ... ok
[INFO] [stdout] test solvers::three::test::test_a ... ok
[INFO] [stdout] test solvers::two::test::test_a ... ok
[INFO] [stdout] test solvers::two::test::test_b ... ok
[INFO] [stdout] test solvers::one::test::a_ends ... ok
[INFO] [stdout] test solvers::one::test::a_none ... ok
[INFO] [stdout] test solvers::one::test::b_all ... ok
[INFO] [stdout] test solvers::one::test::b_loops ... ok
[INFO] [stdout] test solvers::one::test::b_none ... ok
[INFO] [stdout] test solvers::one::test::b_other ... ok
[INFO] [stdout] test solvers::one::test::a_all ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "6da9b62820e953ff56c8f609f8cd5ac391687a4bb8881f29993d7072b3e5497d"`
[INFO] running `"docker" "rm" "-f" "6da9b62820e953ff56c8f609f8cd5ac391687a4bb8881f29993d7072b3e5497d"`
[INFO] [stdout] 6da9b62820e953ff56c8f609f8cd5ac391687a4bb8881f29993d7072b3e5497d