[INFO] crate fine_grained 0.1.2 is already in cache
[INFO] extracting crate fine_grained 0.1.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/fine_grained/0.1.2
[INFO] extracting crate fine_grained 0.1.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/fine_grained/0.1.2
[INFO] validating manifest of fine_grained-0.1.2 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 fine_grained-0.1.2 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 fine_grained-0.1.2
[INFO] finished frobbing fine_grained-0.1.2
[INFO] frobbed toml for fine_grained-0.1.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/fine_grained/0.1.2/Cargo.toml
[INFO] started frobbing fine_grained-0.1.2
[INFO] finished frobbing fine_grained-0.1.2
[INFO] frobbed toml for fine_grained-0.1.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/fine_grained/0.1.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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] building fine_grained-0.1.2 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/reg/fine_grained/0.1.2:/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] 90163e065dd5efd47aa68a28deb7815e273e1500d11c26b57639b9c660767556
[INFO] running `"docker" "start" "-a" "90163e065dd5efd47aa68a28deb7815e273e1500d11c26b57639b9c660767556"`
[INFO] [stderr]    Compiling fine_grained v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/stopwatch.rs:91:17
[INFO] [stderr]    |
[INFO] [stderr] 91 | /                 /// If the stopwatch is currently running, the total time is the saved total time
[INFO] [stderr] 92 | |                 /// plus the current lap's duration up to this point.
[INFO] [stderr]    | |_____________________________________________________________________^
[INFO] [stderr] 93 |                   let current_time: u64 = time::precise_time_ns();
[INFO] [stderr]    |                   ------------------------------------------------ rustdoc does not generate documentation for statements
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "90163e065dd5efd47aa68a28deb7815e273e1500d11c26b57639b9c660767556"`
[INFO] running `"docker" "rm" "-f" "90163e065dd5efd47aa68a28deb7815e273e1500d11c26b57639b9c660767556"`
[INFO] [stdout] 90163e065dd5efd47aa68a28deb7815e273e1500d11c26b57639b9c660767556
[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/reg/fine_grained/0.1.2:/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] 1fefc3d63267429a8c2da09e7bf60c989dcb85ce55bda9c4bd7c34a7cbebdcfb
[INFO] running `"docker" "start" "-a" "1fefc3d63267429a8c2da09e7bf60c989dcb85ce55bda9c4bd7c34a7cbebdcfb"`
[INFO] [stderr]    Compiling fine_grained v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/stopwatch.rs:91:17
[INFO] [stderr]    |
[INFO] [stderr] 91 | /                 /// If the stopwatch is currently running, the total time is the saved total time
[INFO] [stderr] 92 | |                 /// plus the current lap's duration up to this point.
[INFO] [stderr]    | |_____________________________________________________________________^
[INFO] [stderr] 93 |                   let current_time: u64 = time::precise_time_ns();
[INFO] [stderr]    |                   ------------------------------------------------ rustdoc does not generate documentation for statements
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_doc_comments)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `"docker" "inspect" "1fefc3d63267429a8c2da09e7bf60c989dcb85ce55bda9c4bd7c34a7cbebdcfb"`
[INFO] running `"docker" "rm" "-f" "1fefc3d63267429a8c2da09e7bf60c989dcb85ce55bda9c4bd7c34a7cbebdcfb"`
[INFO] [stdout] 1fefc3d63267429a8c2da09e7bf60c989dcb85ce55bda9c4bd7c34a7cbebdcfb