[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 beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 3d3f36e76029178e4a4f74ded8e9616f53e54d97142e8418c280b5aec5b05860
[INFO] running `"docker" "start" "-a" "3d3f36e76029178e4a4f74ded8e9616f53e54d97142e8418c280b5aec5b05860"`
[INFO] [stderr]    Compiling option_size v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "3d3f36e76029178e4a4f74ded8e9616f53e54d97142e8418c280b5aec5b05860"`
[INFO] running `"docker" "rm" "-f" "3d3f36e76029178e4a4f74ded8e9616f53e54d97142e8418c280b5aec5b05860"`
[INFO] [stdout] 3d3f36e76029178e4a4f74ded8e9616f53e54d97142e8418c280b5aec5b05860
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] d882e352b5ca9bad978bccd3df64d09068b4d1019aab20d2ae89c49bc72efbce
[INFO] running `"docker" "start" "-a" "d882e352b5ca9bad978bccd3df64d09068b4d1019aab20d2ae89c49bc72efbce"`
[INFO] [stderr]    Compiling option_size v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "d882e352b5ca9bad978bccd3df64d09068b4d1019aab20d2ae89c49bc72efbce"`
[INFO] running `"docker" "rm" "-f" "d882e352b5ca9bad978bccd3df64d09068b4d1019aab20d2ae89c49bc72efbce"`
[INFO] [stdout] d882e352b5ca9bad978bccd3df64d09068b4d1019aab20d2ae89c49bc72efbce
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] af7a68b8bd0f16cdac5db597742717b2ae0926c7765bb38da999c31042a8ecb1
[INFO] running `"docker" "start" "-a" "af7a68b8bd0f16cdac5db597742717b2ae0926c7765bb38da999c31042a8ecb1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/option_size-50916353f0b736d1
[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" "af7a68b8bd0f16cdac5db597742717b2ae0926c7765bb38da999c31042a8ecb1"`
[INFO] running `"docker" "rm" "-f" "af7a68b8bd0f16cdac5db597742717b2ae0926c7765bb38da999c31042a8ecb1"`
[INFO] [stdout] af7a68b8bd0f16cdac5db597742717b2ae0926c7765bb38da999c31042a8ecb1