[INFO] updating cached repository vijaykm2/TheRustProgrammingLanguageBook
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/vijaykm2/TheRustProgrammingLanguageBook
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/vijaykm2/TheRustProgrammingLanguageBook" "work/ex/beta-1.38-1/sources/1.37.0/gh/vijaykm2/TheRustProgrammingLanguageBook"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/vijaykm2/TheRustProgrammingLanguageBook'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vijaykm2/TheRustProgrammingLanguageBook" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vijaykm2/TheRustProgrammingLanguageBook"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vijaykm2/TheRustProgrammingLanguageBook'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 12d7c828497e7a2e1abfe923db877ef8c821c5e5
[INFO] sha for GitHub repo vijaykm2/TheRustProgrammingLanguageBook: 12d7c828497e7a2e1abfe923db877ef8c821c5e5
[INFO] validating manifest of vijaykm2/TheRustProgrammingLanguageBook 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 vijaykm2/TheRustProgrammingLanguageBook 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 vijaykm2/TheRustProgrammingLanguageBook
[INFO] finished frobbing vijaykm2/TheRustProgrammingLanguageBook
[INFO] frobbed toml for vijaykm2/TheRustProgrammingLanguageBook written to work/ex/beta-1.38-1/sources/1.37.0/gh/vijaykm2/TheRustProgrammingLanguageBook/Cargo.toml
[INFO] started frobbing vijaykm2/TheRustProgrammingLanguageBook
[INFO] finished frobbing vijaykm2/TheRustProgrammingLanguageBook
[INFO] frobbed toml for vijaykm2/TheRustProgrammingLanguageBook written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/vijaykm2/TheRustProgrammingLanguageBook/Cargo.toml
[INFO] crate vijaykm2/TheRustProgrammingLanguageBook 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 vijaykm2/TheRustProgrammingLanguageBook 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/vijaykm2/TheRustProgrammingLanguageBook:/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] 0f8b30a39ca03ad0af6004b21c414e0461203e41a506401e6e45376891d7d0dc
[INFO] running `"docker" "start" "-a" "0f8b30a39ca03ad0af6004b21c414e0461203e41a506401e6e45376891d7d0dc"`
[INFO] [stderr]    Compiling TheRustProgrammingLanguageBook v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: crate `TheRustProgrammingLanguageBook` 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: `the_rust_programming_language_book`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `"docker" "inspect" "0f8b30a39ca03ad0af6004b21c414e0461203e41a506401e6e45376891d7d0dc"`
[INFO] running `"docker" "rm" "-f" "0f8b30a39ca03ad0af6004b21c414e0461203e41a506401e6e45376891d7d0dc"`
[INFO] [stdout] 0f8b30a39ca03ad0af6004b21c414e0461203e41a506401e6e45376891d7d0dc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/vijaykm2/TheRustProgrammingLanguageBook:/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] 2b2a8428cd637a48a7b25d2f00198bf95768dd5ce394f9ac951b2b1112ab78ca
[INFO] running `"docker" "start" "-a" "2b2a8428cd637a48a7b25d2f00198bf95768dd5ce394f9ac951b2b1112ab78ca"`
[INFO] [stderr]    Compiling TheRustProgrammingLanguageBook v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: crate `TheRustProgrammingLanguageBook` 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: `the_rust_programming_language_book`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `"docker" "inspect" "2b2a8428cd637a48a7b25d2f00198bf95768dd5ce394f9ac951b2b1112ab78ca"`
[INFO] running `"docker" "rm" "-f" "2b2a8428cd637a48a7b25d2f00198bf95768dd5ce394f9ac951b2b1112ab78ca"`
[INFO] [stdout] 2b2a8428cd637a48a7b25d2f00198bf95768dd5ce394f9ac951b2b1112ab78ca
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/vijaykm2/TheRustProgrammingLanguageBook:/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] 55e32cccb42db79f01a1cbd8a1d0f99cf101b9bbb0cd1370d6b99ca73f44dcd5
[INFO] running `"docker" "start" "-a" "55e32cccb42db79f01a1cbd8a1d0f99cf101b9bbb0cd1370d6b99ca73f44dcd5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/TheRustProgrammingLanguageBook-1d2238b98a45db8e
[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" "55e32cccb42db79f01a1cbd8a1d0f99cf101b9bbb0cd1370d6b99ca73f44dcd5"`
[INFO] running `"docker" "rm" "-f" "55e32cccb42db79f01a1cbd8a1d0f99cf101b9bbb0cd1370d6b99ca73f44dcd5"`
[INFO] [stdout] 55e32cccb42db79f01a1cbd8a1d0f99cf101b9bbb0cd1370d6b99ca73f44dcd5