[INFO] crate docsrs-test 0.0.4 is already in cache
[INFO] extracting crate docsrs-test 0.0.4 into work/ex/beta-1.37-6/sources/1.36.0/reg/docsrs-test/0.0.4
[INFO] extracting crate docsrs-test 0.0.4 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/docsrs-test/0.0.4
[INFO] validating manifest of docsrs-test-0.0.4 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 docsrs-test-0.0.4 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 docsrs-test-0.0.4
[INFO] finished frobbing docsrs-test-0.0.4
[INFO] frobbed toml for docsrs-test-0.0.4 written to work/ex/beta-1.37-6/sources/1.36.0/reg/docsrs-test/0.0.4/Cargo.toml
[INFO] started frobbing docsrs-test-0.0.4
[INFO] finished frobbing docsrs-test-0.0.4
[INFO] frobbed toml for docsrs-test-0.0.4 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/docsrs-test/0.0.4/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 docsrs-test-0.0.4 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-0/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/docsrs-test/0.0.4:/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] b2ef14d45d5027bc9193a601c7db525867fac38a8c93af195d09529b98c4ed37
[INFO] running `"docker" "start" "-a" "b2ef14d45d5027bc9193a601c7db525867fac38a8c93af195d09529b98c4ed37"`
[INFO] [stderr]    Compiling docsrs-test v0.0.4 (/opt/crater/workdir)
[INFO] [stderr] warning: constant item is never used: `PRIVATE_CONST`
[INFO] [stderr]   --> src/lib.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | const PRIVATE_CONST: bool = true;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `"docker" "inspect" "b2ef14d45d5027bc9193a601c7db525867fac38a8c93af195d09529b98c4ed37"`
[INFO] running `"docker" "rm" "-f" "b2ef14d45d5027bc9193a601c7db525867fac38a8c93af195d09529b98c4ed37"`
[INFO] [stdout] b2ef14d45d5027bc9193a601c7db525867fac38a8c93af195d09529b98c4ed37
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/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/docsrs-test/0.0.4:/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] 4286b07ae7494e4b97688b6c98c63c2f9ba26eaa0699cefc75c26cfd6c1969bc
[INFO] running `"docker" "start" "-a" "4286b07ae7494e4b97688b6c98c63c2f9ba26eaa0699cefc75c26cfd6c1969bc"`
[INFO] [stderr]    Compiling docsrs-test v0.0.4 (/opt/crater/workdir)
[INFO] [stderr] warning: constant item is never used: `PRIVATE_CONST`
[INFO] [stderr]   --> src/lib.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | const PRIVATE_CONST: bool = true;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `"docker" "inspect" "4286b07ae7494e4b97688b6c98c63c2f9ba26eaa0699cefc75c26cfd6c1969bc"`
[INFO] running `"docker" "rm" "-f" "4286b07ae7494e4b97688b6c98c63c2f9ba26eaa0699cefc75c26cfd6c1969bc"`
[INFO] [stdout] 4286b07ae7494e4b97688b6c98c63c2f9ba26eaa0699cefc75c26cfd6c1969bc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/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/docsrs-test/0.0.4:/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] 789d3d79e387e0a4971d5da7bf5e0e4d0d4f457aad3851d974e106e0813afa07
[INFO] running `"docker" "start" "-a" "789d3d79e387e0a4971d5da7bf5e0e4d0d4f457aad3851d974e106e0813afa07"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/docsrs_test-46859763ad2e2a4d
[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 docsrs-test
[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" "789d3d79e387e0a4971d5da7bf5e0e4d0d4f457aad3851d974e106e0813afa07"`
[INFO] running `"docker" "rm" "-f" "789d3d79e387e0a4971d5da7bf5e0e4d0d4f457aad3851d974e106e0813afa07"`
[INFO] [stdout] 789d3d79e387e0a4971d5da7bf5e0e4d0d4f457aad3851d974e106e0813afa07