[INFO] updating cached repository hnakamur/rust_option_size_experiment
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hnakamur/rust_option_size_experiment
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hnakamur/rust_option_size_experiment" "work/ex/beta-1.38-1/sources/1.37.0/gh/hnakamur/rust_option_size_experiment"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/hnakamur/rust_option_size_experiment'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hnakamur/rust_option_size_experiment" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hnakamur/rust_option_size_experiment"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hnakamur/rust_option_size_experiment'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b7ee72ffd9631b2924a0e5117669aaa0b43a797a
[INFO] sha for GitHub repo hnakamur/rust_option_size_experiment: b7ee72ffd9631b2924a0e5117669aaa0b43a797a
[INFO] validating manifest of hnakamur/rust_option_size_experiment 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 hnakamur/rust_option_size_experiment 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 hnakamur/rust_option_size_experiment
[INFO] finished frobbing hnakamur/rust_option_size_experiment
[INFO] frobbed toml for hnakamur/rust_option_size_experiment written to work/ex/beta-1.38-1/sources/1.37.0/gh/hnakamur/rust_option_size_experiment/Cargo.toml
[INFO] started frobbing hnakamur/rust_option_size_experiment
[INFO] finished frobbing hnakamur/rust_option_size_experiment
[INFO] frobbed toml for hnakamur/rust_option_size_experiment written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hnakamur/rust_option_size_experiment/Cargo.toml
[INFO] crate hnakamur/rust_option_size_experiment 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] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hnakamur/rust_option_size_experiment/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 hnakamur/rust_option_size_experiment 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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hnakamur/rust_option_size_experiment:/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] cf9059eb9494651106581d53352d0df9902076b0cfbea733f83fbc6b94d73cf2
[INFO] running `"docker" "start" "-a" "cf9059eb9494651106581d53352d0df9902076b0cfbea733f83fbc6b94d73cf2"`
[INFO] [stderr]    Compiling option_size v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `"docker" "inspect" "cf9059eb9494651106581d53352d0df9902076b0cfbea733f83fbc6b94d73cf2"`
[INFO] running `"docker" "rm" "-f" "cf9059eb9494651106581d53352d0df9902076b0cfbea733f83fbc6b94d73cf2"`
[INFO] [stdout] cf9059eb9494651106581d53352d0df9902076b0cfbea733f83fbc6b94d73cf2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hnakamur/rust_option_size_experiment:/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] 5d70f3eed844b93b6051041ba7b98dcb88f4ab08ed5941a4d945391e110a7214
[INFO] running `"docker" "start" "-a" "5d70f3eed844b93b6051041ba7b98dcb88f4ab08ed5941a4d945391e110a7214"`
[INFO] [stderr]    Compiling option_size v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `"docker" "inspect" "5d70f3eed844b93b6051041ba7b98dcb88f4ab08ed5941a4d945391e110a7214"`
[INFO] running `"docker" "rm" "-f" "5d70f3eed844b93b6051041ba7b98dcb88f4ab08ed5941a4d945391e110a7214"`
[INFO] [stdout] 5d70f3eed844b93b6051041ba7b98dcb88f4ab08ed5941a4d945391e110a7214
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hnakamur/rust_option_size_experiment:/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] 2b6d60c4073f85496e929b4937c0b8d0fc20363fd0ca8c0a5f066ec619974821
[INFO] running `"docker" "start" "-a" "2b6d60c4073f85496e929b4937c0b8d0fc20363fd0ca8c0a5f066ec619974821"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/option_size-4a93f87f8027b142
[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" "2b6d60c4073f85496e929b4937c0b8d0fc20363fd0ca8c0a5f066ec619974821"`
[INFO] running `"docker" "rm" "-f" "2b6d60c4073f85496e929b4937c0b8d0fc20363fd0ca8c0a5f066ec619974821"`
[INFO] [stdout] 2b6d60c4073f85496e929b4937c0b8d0fc20363fd0ca8c0a5f066ec619974821