[INFO] fetching crate twiggy-ir 0.6.0...
[INFO] extracting crate twiggy-ir 0.6.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/twiggy-ir/0.6.0
[INFO] extracting crate twiggy-ir 0.6.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/twiggy-ir/0.6.0
[INFO] validating manifest of twiggy-ir-0.6.0 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 twiggy-ir-0.6.0 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 twiggy-ir-0.6.0
[INFO] finished frobbing twiggy-ir-0.6.0
[INFO] frobbed toml for twiggy-ir-0.6.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/twiggy-ir/0.6.0/Cargo.toml
[INFO] started frobbing twiggy-ir-0.6.0
[INFO] finished frobbing twiggy-ir-0.6.0
[INFO] frobbed toml for twiggy-ir-0.6.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/twiggy-ir/0.6.0/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] 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 twiggy-ir-0.6.0 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-5/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/twiggy-ir/0.6.0:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 098118356cdc10185af88459ebd020626d134214a0e213103c4ff642db0413de
[INFO] running `"docker" "start" "-a" "098118356cdc10185af88459ebd020626d134214a0e213103c4ff642db0413de"`
[INFO] [stderr]    Compiling frozen v1.0.0
[INFO] [stderr]    Compiling cpp_demangle v0.2.13
[INFO] [stderr]    Compiling twiggy-ir v0.6.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.04s
[INFO] running `"docker" "inspect" "098118356cdc10185af88459ebd020626d134214a0e213103c4ff642db0413de"`
[INFO] running `"docker" "rm" "-f" "098118356cdc10185af88459ebd020626d134214a0e213103c4ff642db0413de"`
[INFO] [stdout] 098118356cdc10185af88459ebd020626d134214a0e213103c4ff642db0413de
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/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/twiggy-ir/0.6.0:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 8b71463aedfa4d712ffadb00e6e33ff43f983ff4034ef2e27e2ce96fa8bed006
[INFO] running `"docker" "start" "-a" "8b71463aedfa4d712ffadb00e6e33ff43f983ff4034ef2e27e2ce96fa8bed006"`
[INFO] [stderr]    Compiling twiggy-ir v0.6.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `"docker" "inspect" "8b71463aedfa4d712ffadb00e6e33ff43f983ff4034ef2e27e2ce96fa8bed006"`
[INFO] running `"docker" "rm" "-f" "8b71463aedfa4d712ffadb00e6e33ff43f983ff4034ef2e27e2ce96fa8bed006"`
[INFO] [stdout] 8b71463aedfa4d712ffadb00e6e33ff43f983ff4034ef2e27e2ce96fa8bed006
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/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/twiggy-ir/0.6.0:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 597e4756a47d697f1dd00ffce18a01e29e54b4b2adaa5d70d43082af06977dca
[INFO] running `"docker" "start" "-a" "597e4756a47d697f1dd00ffce18a01e29e54b4b2adaa5d70d43082af06977dca"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/twiggy_ir-163019022857f0a2
[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 twiggy-ir
[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" "597e4756a47d697f1dd00ffce18a01e29e54b4b2adaa5d70d43082af06977dca"`
[INFO] running `"docker" "rm" "-f" "597e4756a47d697f1dd00ffce18a01e29e54b4b2adaa5d70d43082af06977dca"`
[INFO] [stdout] 597e4756a47d697f1dd00ffce18a01e29e54b4b2adaa5d70d43082af06977dca