[INFO] updating cached repository howeih/Day-16-Breaking-OTP
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/howeih/Day-16-Breaking-OTP
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/howeih/Day-16-Breaking-OTP" "work/ex/beta-1.38-1/sources/1.37.0/gh/howeih/Day-16-Breaking-OTP"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/howeih/Day-16-Breaking-OTP'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/howeih/Day-16-Breaking-OTP" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/howeih/Day-16-Breaking-OTP"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/howeih/Day-16-Breaking-OTP'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 88ecf20c196a727418900c85bc3f41c3bcb4688b
[INFO] sha for GitHub repo howeih/Day-16-Breaking-OTP: 88ecf20c196a727418900c85bc3f41c3bcb4688b
[INFO] validating manifest of howeih/Day-16-Breaking-OTP on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of howeih/Day-16-Breaking-OTP on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing howeih/Day-16-Breaking-OTP
[INFO] finished frobbing howeih/Day-16-Breaking-OTP
[INFO] frobbed toml for howeih/Day-16-Breaking-OTP written to work/ex/beta-1.38-1/sources/1.37.0/gh/howeih/Day-16-Breaking-OTP/Cargo.toml
[INFO] started frobbing howeih/Day-16-Breaking-OTP
[INFO] finished frobbing howeih/Day-16-Breaking-OTP
[INFO] frobbed toml for howeih/Day-16-Breaking-OTP written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/howeih/Day-16-Breaking-OTP/Cargo.toml
[INFO] crate howeih/Day-16-Breaking-OTP already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing howeih/Day-16-Breaking-OTP against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/howeih/Day-16-Breaking-OTP:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 84569ea1395aeb3c337235647354074e04dbf25632c5b662d05c199df1d58352
[INFO] running `"docker" "start" "-a" "84569ea1395aeb3c337235647354074e04dbf25632c5b662d05c199df1d58352"`
[INFO] [stderr]    Compiling breaking_OTP v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: crate `breaking_OTP` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `breaking_otp`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "84569ea1395aeb3c337235647354074e04dbf25632c5b662d05c199df1d58352"`
[INFO] running `"docker" "rm" "-f" "84569ea1395aeb3c337235647354074e04dbf25632c5b662d05c199df1d58352"`
[INFO] [stdout] 84569ea1395aeb3c337235647354074e04dbf25632c5b662d05c199df1d58352
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/howeih/Day-16-Breaking-OTP:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 670be2264f3faa422b3ac1e2558f9f980494d746238a63bcf9a3adc9a2d4d19b
[INFO] running `"docker" "start" "-a" "670be2264f3faa422b3ac1e2558f9f980494d746238a63bcf9a3adc9a2d4d19b"`
[INFO] [stderr]    Compiling breaking_OTP v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: crate `breaking_OTP` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(non_snake_case)] on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `breaking_otp`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `"docker" "inspect" "670be2264f3faa422b3ac1e2558f9f980494d746238a63bcf9a3adc9a2d4d19b"`
[INFO] running `"docker" "rm" "-f" "670be2264f3faa422b3ac1e2558f9f980494d746238a63bcf9a3adc9a2d4d19b"`
[INFO] [stdout] 670be2264f3faa422b3ac1e2558f9f980494d746238a63bcf9a3adc9a2d4d19b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/howeih/Day-16-Breaking-OTP:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 9c771e2f07c3f7a325faa9321f711f20c36bb7929a9a3d358f5c4b7bdeecb04e
[INFO] running `"docker" "start" "-a" "9c771e2f07c3f7a325faa9321f711f20c36bb7929a9a3d358f5c4b7bdeecb04e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/breaking_OTP-87aba3f2f429c3a0
[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" "9c771e2f07c3f7a325faa9321f711f20c36bb7929a9a3d358f5c4b7bdeecb04e"`
[INFO] running `"docker" "rm" "-f" "9c771e2f07c3f7a325faa9321f711f20c36bb7929a9a3d358f5c4b7bdeecb04e"`
[INFO] [stdout] 9c771e2f07c3f7a325faa9321f711f20c36bb7929a9a3d358f5c4b7bdeecb04e