[INFO] updating cached repository BenTheElder/docs_test_case
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/BenTheElder/docs_test_case
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/BenTheElder/docs_test_case" "work/ex/beta-1.37-6/sources/1.36.0/gh/BenTheElder/docs_test_case"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/BenTheElder/docs_test_case'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/BenTheElder/docs_test_case" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/BenTheElder/docs_test_case"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/BenTheElder/docs_test_case'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 96038f61ef6fc04c4738592d8c55b8c72668587a
[INFO] sha for GitHub repo BenTheElder/docs_test_case: 96038f61ef6fc04c4738592d8c55b8c72668587a
[INFO] validating manifest of BenTheElder/docs_test_case 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 BenTheElder/docs_test_case 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 BenTheElder/docs_test_case
[INFO] finished frobbing BenTheElder/docs_test_case
[INFO] frobbed toml for BenTheElder/docs_test_case written to work/ex/beta-1.37-6/sources/1.36.0/gh/BenTheElder/docs_test_case/Cargo.toml
[INFO] started frobbing BenTheElder/docs_test_case
[INFO] finished frobbing BenTheElder/docs_test_case
[INFO] frobbed toml for BenTheElder/docs_test_case written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/BenTheElder/docs_test_case/Cargo.toml
[INFO] crate BenTheElder/docs_test_case already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing BenTheElder/docs_test_case 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-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/BenTheElder/docs_test_case:/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] 4d185831e0a313d6f922ac51db6cc95f646c980ded4954bb0d52fe9ef0b55279
[INFO] running `"docker" "start" "-a" "4d185831e0a313d6f922ac51db6cc95f646c980ded4954bb0d52fe9ef0b55279"`
[INFO] [stderr]    Compiling docs_test_case v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `"docker" "inspect" "4d185831e0a313d6f922ac51db6cc95f646c980ded4954bb0d52fe9ef0b55279"`
[INFO] running `"docker" "rm" "-f" "4d185831e0a313d6f922ac51db6cc95f646c980ded4954bb0d52fe9ef0b55279"`
[INFO] [stdout] 4d185831e0a313d6f922ac51db6cc95f646c980ded4954bb0d52fe9ef0b55279
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/BenTheElder/docs_test_case:/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] 19726422f6e2d2e0ee3b8eb96ee3a4629349e346caeed0cad746f0e595e79f2e
[INFO] running `"docker" "start" "-a" "19726422f6e2d2e0ee3b8eb96ee3a4629349e346caeed0cad746f0e595e79f2e"`
[INFO] [stderr]    Compiling docs_test_case v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `"docker" "inspect" "19726422f6e2d2e0ee3b8eb96ee3a4629349e346caeed0cad746f0e595e79f2e"`
[INFO] running `"docker" "rm" "-f" "19726422f6e2d2e0ee3b8eb96ee3a4629349e346caeed0cad746f0e595e79f2e"`
[INFO] [stdout] 19726422f6e2d2e0ee3b8eb96ee3a4629349e346caeed0cad746f0e595e79f2e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/BenTheElder/docs_test_case:/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] 32ab06ced1c826c59a38cdeef545b4bab1c5bb9b9fbd8ab3a1e945feeafa062d
[INFO] running `"docker" "start" "-a" "32ab06ced1c826c59a38cdeef545b4bab1c5bb9b9fbd8ab3a1e945feeafa062d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/docs_test_case-1981553f66b81b98
[INFO] [stderr]    Doc-tests docs_test_case
[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] [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" "32ab06ced1c826c59a38cdeef545b4bab1c5bb9b9fbd8ab3a1e945feeafa062d"`
[INFO] running `"docker" "rm" "-f" "32ab06ced1c826c59a38cdeef545b4bab1c5bb9b9fbd8ab3a1e945feeafa062d"`
[INFO] [stdout] 32ab06ced1c826c59a38cdeef545b4bab1c5bb9b9fbd8ab3a1e945feeafa062d