[INFO] fetching crate failure_ext 0.1.2...
[INFO] extracting crate failure_ext 0.1.2 into work/ex/beta-1.37-6/sources/1.36.0/reg/failure_ext/0.1.2
[INFO] extracting crate failure_ext 0.1.2 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/failure_ext/0.1.2
[INFO] validating manifest of failure_ext-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 failure_ext-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 failure_ext-0.1.2
[INFO] finished frobbing failure_ext-0.1.2
[INFO] frobbed toml for failure_ext-0.1.2 written to work/ex/beta-1.37-6/sources/1.36.0/reg/failure_ext/0.1.2/Cargo.toml
[INFO] started frobbing failure_ext-0.1.2
[INFO] finished frobbing failure_ext-0.1.2
[INFO] frobbed toml for failure_ext-0.1.2 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/failure_ext/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 failure_ext-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-6/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/failure_ext/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] ebc27d812bdf4ba78a782caa0ac453eb745d8567f85837df793821a0978ba39a
[INFO] running `"docker" "start" "-a" "ebc27d812bdf4ba78a782caa0ac453eb745d8567f85837df793821a0978ba39a"`
[INFO] [stderr]    Compiling failure_ext v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "ebc27d812bdf4ba78a782caa0ac453eb745d8567f85837df793821a0978ba39a"`
[INFO] running `"docker" "rm" "-f" "ebc27d812bdf4ba78a782caa0ac453eb745d8567f85837df793821a0978ba39a"`
[INFO] [stdout] ebc27d812bdf4ba78a782caa0ac453eb745d8567f85837df793821a0978ba39a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/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/failure_ext/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] 6252cde09a2ffed2c8737cba55f0b727eaecd57572e15cb1f983ddefb2eb34c8
[INFO] running `"docker" "start" "-a" "6252cde09a2ffed2c8737cba55f0b727eaecd57572e15cb1f983ddefb2eb34c8"`
[INFO] [stderr]    Compiling failure_ext v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "6252cde09a2ffed2c8737cba55f0b727eaecd57572e15cb1f983ddefb2eb34c8"`
[INFO] running `"docker" "rm" "-f" "6252cde09a2ffed2c8737cba55f0b727eaecd57572e15cb1f983ddefb2eb34c8"`
[INFO] [stdout] 6252cde09a2ffed2c8737cba55f0b727eaecd57572e15cb1f983ddefb2eb34c8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/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/failure_ext/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] 8754a0398f61d9160a96d18193554c82c31e3deec27fbd7a0420d76414394535
[INFO] running `"docker" "start" "-a" "8754a0398f61d9160a96d18193554c82c31e3deec27fbd7a0420d76414394535"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/failure_ext-c492c195326429ef
[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 failure_ext
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/option_ext.rs - option_ext::OptionExt::ok_or_context (line 10) ... 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" "8754a0398f61d9160a96d18193554c82c31e3deec27fbd7a0420d76414394535"`
[INFO] running `"docker" "rm" "-f" "8754a0398f61d9160a96d18193554c82c31e3deec27fbd7a0420d76414394535"`
[INFO] [stdout] 8754a0398f61d9160a96d18193554c82c31e3deec27fbd7a0420d76414394535