[INFO] fetching crate better-panic 0.1.2...
[INFO] extracting crate better-panic 0.1.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/better-panic/0.1.2
[INFO] extracting crate better-panic 0.1.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/better-panic/0.1.2
[INFO] validating manifest of better-panic-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 better-panic-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 better-panic-0.1.2
[INFO] finished frobbing better-panic-0.1.2
[INFO] frobbed toml for better-panic-0.1.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/better-panic/0.1.2/Cargo.toml
[INFO] started frobbing better-panic-0.1.2
[INFO] finished frobbing better-panic-0.1.2
[INFO] frobbed toml for better-panic-0.1.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/better-panic/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] testing better-panic-0.1.2 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/better-panic/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 34034d77396f6005df336e58a66d74beeae2f571c4082bd185b048188dc465b4
[INFO] running `"docker" "start" "-a" "34034d77396f6005df336e58a66d74beeae2f571c4082bd185b048188dc465b4"`
[INFO] [stderr]    Compiling backtrace v0.3.34
[INFO] [stderr]    Compiling better-panic v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
[INFO] running `"docker" "inspect" "34034d77396f6005df336e58a66d74beeae2f571c4082bd185b048188dc465b4"`
[INFO] running `"docker" "rm" "-f" "34034d77396f6005df336e58a66d74beeae2f571c4082bd185b048188dc465b4"`
[INFO] [stdout] 34034d77396f6005df336e58a66d74beeae2f571c4082bd185b048188dc465b4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/better-panic/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 72003d3f7e2f6f9a938f411c8ee0d68f945b7a61ae3eac3ecd42d24d8a140d0b
[INFO] running `"docker" "start" "-a" "72003d3f7e2f6f9a938f411c8ee0d68f945b7a61ae3eac3ecd42d24d8a140d0b"`
[INFO] [stderr]    Compiling better-panic v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `"docker" "inspect" "72003d3f7e2f6f9a938f411c8ee0d68f945b7a61ae3eac3ecd42d24d8a140d0b"`
[INFO] running `"docker" "rm" "-f" "72003d3f7e2f6f9a938f411c8ee0d68f945b7a61ae3eac3ecd42d24d8a140d0b"`
[INFO] [stdout] 72003d3f7e2f6f9a938f411c8ee0d68f945b7a61ae3eac3ecd42d24d8a140d0b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/better-panic/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 2f8304182aa7699f4e2e837b9417d629ed103e9c5dc540a38ec0a484e30beb31
[INFO] running `"docker" "start" "-a" "2f8304182aa7699f4e2e837b9417d629ed103e9c5dc540a38ec0a484e30beb31"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/better_panic-eaade6c402664e91
[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 better-panic
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 17) ... 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" "2f8304182aa7699f4e2e837b9417d629ed103e9c5dc540a38ec0a484e30beb31"`
[INFO] running `"docker" "rm" "-f" "2f8304182aa7699f4e2e837b9417d629ed103e9c5dc540a38ec0a484e30beb31"`
[INFO] [stdout] 2f8304182aa7699f4e2e837b9417d629ed103e9c5dc540a38ec0a484e30beb31