[INFO] updating cached repository ilkka/advent-of-code
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ilkka/advent-of-code
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ilkka/advent-of-code" "work/ex/beta-1.37-6/sources/1.36.0/gh/ilkka/advent-of-code"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/ilkka/advent-of-code'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ilkka/advent-of-code" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ilkka/advent-of-code"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ilkka/advent-of-code'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 428f8196bec7b5945b3b14ca89cb47911a1f80fc
[INFO] sha for GitHub repo ilkka/advent-of-code: 428f8196bec7b5945b3b14ca89cb47911a1f80fc
[INFO] validating manifest of ilkka/advent-of-code 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 ilkka/advent-of-code 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 ilkka/advent-of-code
[INFO] finished frobbing ilkka/advent-of-code
[INFO] frobbed toml for ilkka/advent-of-code written to work/ex/beta-1.37-6/sources/1.36.0/gh/ilkka/advent-of-code/Cargo.toml
[INFO] started frobbing ilkka/advent-of-code
[INFO] finished frobbing ilkka/advent-of-code
[INFO] frobbed toml for ilkka/advent-of-code written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/ilkka/advent-of-code/Cargo.toml
[INFO] crate ilkka/advent-of-code 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 ilkka/advent-of-code 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-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ilkka/advent-of-code:/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] 57dc812df789dd403a039c2a12ed6b5610964943c8ac1b5747445f6930cb569f
[INFO] running `"docker" "start" "-a" "57dc812df789dd403a039c2a12ed6b5610964943c8ac1b5747445f6930cb569f"`
[INFO] [stderr]    Compiling advent v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `vec`
[INFO] [stderr]  --> src/bin/first.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let vec = INPUT.split("").collect::<Vec<_>>();
[INFO] [stderr]   |         ^^^ help: consider prefixing with an underscore: `_vec`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `"docker" "inspect" "57dc812df789dd403a039c2a12ed6b5610964943c8ac1b5747445f6930cb569f"`
[INFO] running `"docker" "rm" "-f" "57dc812df789dd403a039c2a12ed6b5610964943c8ac1b5747445f6930cb569f"`
[INFO] [stdout] 57dc812df789dd403a039c2a12ed6b5610964943c8ac1b5747445f6930cb569f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ilkka/advent-of-code:/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] 9643f8e87049c3eabfc4e4991fad9aa9ebb1bca514c287acdb26e55c9d498e3e
[INFO] running `"docker" "start" "-a" "9643f8e87049c3eabfc4e4991fad9aa9ebb1bca514c287acdb26e55c9d498e3e"`
[INFO] [stderr]    Compiling advent v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `vec`
[INFO] [stderr]  --> src/bin/first.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let vec = INPUT.split("").collect::<Vec<_>>();
[INFO] [stderr]   |         ^^^ help: consider prefixing with an underscore: `_vec`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `"docker" "inspect" "9643f8e87049c3eabfc4e4991fad9aa9ebb1bca514c287acdb26e55c9d498e3e"`
[INFO] running `"docker" "rm" "-f" "9643f8e87049c3eabfc4e4991fad9aa9ebb1bca514c287acdb26e55c9d498e3e"`
[INFO] [stdout] 9643f8e87049c3eabfc4e4991fad9aa9ebb1bca514c287acdb26e55c9d498e3e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/ilkka/advent-of-code:/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] e015bf20b638928a9bbbc2888f9a4110023bdaf113777fd2101ddd06fe53214c
[INFO] running `"docker" "start" "-a" "e015bf20b638928a9bbbc2888f9a4110023bdaf113777fd2101ddd06fe53214c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/advent-c5f216aeef9b2e82
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/first-bbcc42e9776c2531
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "e015bf20b638928a9bbbc2888f9a4110023bdaf113777fd2101ddd06fe53214c"`
[INFO] running `"docker" "rm" "-f" "e015bf20b638928a9bbbc2888f9a4110023bdaf113777fd2101ddd06fe53214c"`
[INFO] [stdout] e015bf20b638928a9bbbc2888f9a4110023bdaf113777fd2101ddd06fe53214c