[INFO] crate auto_from 0.3.0 is already in cache
[INFO] extracting crate auto_from 0.3.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/auto_from/0.3.0
[INFO] extracting crate auto_from 0.3.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/auto_from/0.3.0
[INFO] validating manifest of auto_from-0.3.0 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 auto_from-0.3.0 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 auto_from-0.3.0
[INFO] finished frobbing auto_from-0.3.0
[INFO] frobbed toml for auto_from-0.3.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/auto_from/0.3.0/Cargo.toml
[INFO] started frobbing auto_from-0.3.0
[INFO] finished frobbing auto_from-0.3.0
[INFO] frobbed toml for auto_from-0.3.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/auto_from/0.3.0/Cargo.toml
[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 auto_from-0.3.0 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-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/auto_from/0.3.0:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] d225da3ca3a1410d5c9233e9bb8c7006f3c03a463e86ce6d85b216ff622d8280
[INFO] running `"docker" "start" "-a" "d225da3ca3a1410d5c9233e9bb8c7006f3c03a463e86ce6d85b216ff622d8280"`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling auto_from v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.70s
[INFO] running `"docker" "inspect" "d225da3ca3a1410d5c9233e9bb8c7006f3c03a463e86ce6d85b216ff622d8280"`
[INFO] running `"docker" "rm" "-f" "d225da3ca3a1410d5c9233e9bb8c7006f3c03a463e86ce6d85b216ff622d8280"`
[INFO] [stdout] d225da3ca3a1410d5c9233e9bb8c7006f3c03a463e86ce6d85b216ff622d8280
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/auto_from/0.3.0:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] d6408c084d7e22d650721a66fb47e91b7cfbf3a8aba47358ef2c7d56a18167a6
[INFO] running `"docker" "start" "-a" "d6408c084d7e22d650721a66fb47e91b7cfbf3a8aba47358ef2c7d56a18167a6"`
[INFO] [stderr]    Compiling auto_from v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `SkippedInt`
[INFO] [stderr]  --> examples/skip.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     SkippedInt(i32),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `"docker" "inspect" "d6408c084d7e22d650721a66fb47e91b7cfbf3a8aba47358ef2c7d56a18167a6"`
[INFO] running `"docker" "rm" "-f" "d6408c084d7e22d650721a66fb47e91b7cfbf3a8aba47358ef2c7d56a18167a6"`
[INFO] [stdout] d6408c084d7e22d650721a66fb47e91b7cfbf3a8aba47358ef2c7d56a18167a6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/auto_from/0.3.0:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 6b4c43d0731b87f0b783ef062690f478a70ab8ed3376e46cb6d8f0f73fe78921
[INFO] running `"docker" "start" "-a" "6b4c43d0731b87f0b783ef062690f478a70ab8ed3376e46cb6d8f0f73fe78921"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/auto_from-633c18b8947743b2
[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 auto_from
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 6) ... 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" "6b4c43d0731b87f0b783ef062690f478a70ab8ed3376e46cb6d8f0f73fe78921"`
[INFO] running `"docker" "rm" "-f" "6b4c43d0731b87f0b783ef062690f478a70ab8ed3376e46cb6d8f0f73fe78921"`
[INFO] [stdout] 6b4c43d0731b87f0b783ef062690f478a70ab8ed3376e46cb6d8f0f73fe78921