[INFO] crate try_opt 0.2.0 is already in cache
[INFO] extracting crate try_opt 0.2.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/try_opt/0.2.0
[INFO] extracting crate try_opt 0.2.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/try_opt/0.2.0
[INFO] validating manifest of try_opt-0.2.0 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 try_opt-0.2.0 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 try_opt-0.2.0
[INFO] finished frobbing try_opt-0.2.0
[INFO] frobbed toml for try_opt-0.2.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/try_opt/0.2.0/Cargo.toml
[INFO] started frobbing try_opt-0.2.0
[INFO] finished frobbing try_opt-0.2.0
[INFO] frobbed toml for try_opt-0.2.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/try_opt/0.2.0/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] [stderr]     Blocking waiting for file lock on package cache lock
[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] testing try_opt-0.2.0 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/try_opt/0.2.0:/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] c9c74034fc870245a05d4b9344c822df300632a829ab90ae0ced2e7cbe3d0860
[INFO] running `"docker" "start" "-a" "c9c74034fc870245a05d4b9344c822df300632a829ab90ae0ced2e7cbe3d0860"`
[INFO] [stderr]    Compiling try_opt v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `"docker" "inspect" "c9c74034fc870245a05d4b9344c822df300632a829ab90ae0ced2e7cbe3d0860"`
[INFO] running `"docker" "rm" "-f" "c9c74034fc870245a05d4b9344c822df300632a829ab90ae0ced2e7cbe3d0860"`
[INFO] [stdout] c9c74034fc870245a05d4b9344c822df300632a829ab90ae0ced2e7cbe3d0860
[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/try_opt/0.2.0:/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] 54f145eada6ea2b68cbb38ecbd5e675fecc7f833eedae7d52319bf559a5ff6a6
[INFO] running `"docker" "start" "-a" "54f145eada6ea2b68cbb38ecbd5e675fecc7f833eedae7d52319bf559a5ff6a6"`
[INFO] [stderr]    Compiling try_opt v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "54f145eada6ea2b68cbb38ecbd5e675fecc7f833eedae7d52319bf559a5ff6a6"`
[INFO] running `"docker" "rm" "-f" "54f145eada6ea2b68cbb38ecbd5e675fecc7f833eedae7d52319bf559a5ff6a6"`
[INFO] [stdout] 54f145eada6ea2b68cbb38ecbd5e675fecc7f833eedae7d52319bf559a5ff6a6
[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/try_opt/0.2.0:/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"`
[INFO] [stdout] 2ff2eb158c0df59609e7793ce1cb5c4ce37f293349eddb363f662bfa7e4b0b88
[INFO] running `"docker" "start" "-a" "2ff2eb158c0df59609e7793ce1cb5c4ce37f293349eddb363f662bfa7e4b0b88"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/try_opt-b9e74819cb4c9526
[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] [stderr]    Doc-tests try_opt
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - try_opt (line 9) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "2ff2eb158c0df59609e7793ce1cb5c4ce37f293349eddb363f662bfa7e4b0b88"`
[INFO] running `"docker" "rm" "-f" "2ff2eb158c0df59609e7793ce1cb5c4ce37f293349eddb363f662bfa7e4b0b88"`
[INFO] [stdout] 2ff2eb158c0df59609e7793ce1cb5c4ce37f293349eddb363f662bfa7e4b0b88