[INFO] fetching crate gfx-backend-empty 0.2.1...
[INFO] extracting crate gfx-backend-empty 0.2.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/gfx-backend-empty/0.2.1
[INFO] extracting crate gfx-backend-empty 0.2.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/gfx-backend-empty/0.2.1
[INFO] validating manifest of gfx-backend-empty-0.2.1 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 gfx-backend-empty-0.2.1 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 gfx-backend-empty-0.2.1
[INFO] finished frobbing gfx-backend-empty-0.2.1
[INFO] frobbed toml for gfx-backend-empty-0.2.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/gfx-backend-empty/0.2.1/Cargo.toml
[INFO] started frobbing gfx-backend-empty-0.2.1
[INFO] finished frobbing gfx-backend-empty-0.2.1
[INFO] frobbed toml for gfx-backend-empty-0.2.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/gfx-backend-empty/0.2.1/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 gfx-backend-empty-0.2.1 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-1/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/gfx-backend-empty/0.2.1:/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] 3d0e4921f23156502dbb7d109cd788b72bcae3bd15965bd82dbb965916d5bc9a
[INFO] running `"docker" "start" "-a" "3d0e4921f23156502dbb7d109cd788b72bcae3bd15965bd82dbb965916d5bc9a"`
[INFO] [stderr]    Compiling gfx-hal v0.2.1
[INFO] [stderr]    Compiling gfx-backend-empty v0.2.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.92s
[INFO] running `"docker" "inspect" "3d0e4921f23156502dbb7d109cd788b72bcae3bd15965bd82dbb965916d5bc9a"`
[INFO] running `"docker" "rm" "-f" "3d0e4921f23156502dbb7d109cd788b72bcae3bd15965bd82dbb965916d5bc9a"`
[INFO] [stdout] 3d0e4921f23156502dbb7d109cd788b72bcae3bd15965bd82dbb965916d5bc9a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/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/gfx-backend-empty/0.2.1:/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] e03e51c9c5d268f188b2f19ef0529cc813f4ebf38944ed4028150beeef16f574
[INFO] running `"docker" "start" "-a" "e03e51c9c5d268f188b2f19ef0529cc813f4ebf38944ed4028150beeef16f574"`
[INFO] [stderr]    Compiling gfx-backend-empty v0.2.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "e03e51c9c5d268f188b2f19ef0529cc813f4ebf38944ed4028150beeef16f574"`
[INFO] running `"docker" "rm" "-f" "e03e51c9c5d268f188b2f19ef0529cc813f4ebf38944ed4028150beeef16f574"`
[INFO] [stdout] e03e51c9c5d268f188b2f19ef0529cc813f4ebf38944ed4028150beeef16f574
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/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/gfx-backend-empty/0.2.1:/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] eb50091fd449d6a916ee495269973f5f4aa61cc84202f61791743ca23928d68a
[INFO] running `"docker" "start" "-a" "eb50091fd449d6a916ee495269973f5f4aa61cc84202f61791743ca23928d68a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/gfx_backend_empty-2f287ad44f8f3c83
[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 gfx_backend_empty
[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" "eb50091fd449d6a916ee495269973f5f4aa61cc84202f61791743ca23928d68a"`
[INFO] running `"docker" "rm" "-f" "eb50091fd449d6a916ee495269973f5f4aa61cc84202f61791743ca23928d68a"`
[INFO] [stdout] eb50091fd449d6a916ee495269973f5f4aa61cc84202f61791743ca23928d68a