[INFO] crate string-intern 0.1.7 is already in cache
[INFO] extracting crate string-intern 0.1.7 into work/ex/beta-1.38-1/sources/1.37.0/reg/string-intern/0.1.7
[INFO] extracting crate string-intern 0.1.7 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/string-intern/0.1.7
[INFO] validating manifest of string-intern-0.1.7 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 string-intern-0.1.7 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 string-intern-0.1.7
[INFO] finished frobbing string-intern-0.1.7
[INFO] frobbed toml for string-intern-0.1.7 written to work/ex/beta-1.38-1/sources/1.37.0/reg/string-intern/0.1.7/Cargo.toml
[INFO] started frobbing string-intern-0.1.7
[INFO] finished frobbing string-intern-0.1.7
[INFO] frobbed toml for string-intern-0.1.7 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/string-intern/0.1.7/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 string-intern-0.1.7 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/string-intern/0.1.7:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 023caadb2b8fe0ae88025672cd48ff79278c78777b8fee12d17ddd78530742a0
[INFO] running `"docker" "start" "-a" "023caadb2b8fe0ae88025672cd48ff79278c78777b8fee12d17ddd78530742a0"`
[INFO] [stderr]    Compiling string-intern v0.1.7 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `"docker" "inspect" "023caadb2b8fe0ae88025672cd48ff79278c78777b8fee12d17ddd78530742a0"`
[INFO] running `"docker" "rm" "-f" "023caadb2b8fe0ae88025672cd48ff79278c78777b8fee12d17ddd78530742a0"`
[INFO] [stdout] 023caadb2b8fe0ae88025672cd48ff79278c78777b8fee12d17ddd78530742a0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/string-intern/0.1.7:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 01c49e74751140db21578b3e548642b5f04e068213c866e6a0856a2e981bf095
[INFO] running `"docker" "start" "-a" "01c49e74751140db21578b3e548642b5f04e068213c866e6a0856a2e981bf095"`
[INFO] [stderr]    Compiling string-intern v0.1.7 (/opt/crater/workdir)
[INFO] [stderr] warning: argument must be of the form: `expected = "error message"`
[INFO] [stderr]    --> src/base_type.rs:314:5
[INFO] [stderr]     |
[INFO] [stderr] 314 |     #[should_panic(message="static strings used as atom is invalid")]
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: Errors in this attribute were erroneously allowed and will become a hard error in a future release.
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `"docker" "inspect" "01c49e74751140db21578b3e548642b5f04e068213c866e6a0856a2e981bf095"`
[INFO] running `"docker" "rm" "-f" "01c49e74751140db21578b3e548642b5f04e068213c866e6a0856a2e981bf095"`
[INFO] [stdout] 01c49e74751140db21578b3e548642b5f04e068213c866e6a0856a2e981bf095
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/string-intern/0.1.7:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 980e30ac127bbf928324d176881be06625fb79bee0760b1c03645d2bfc852819
[INFO] running `"docker" "start" "-a" "980e30ac127bbf928324d176881be06625fb79bee0760b1c03645d2bfc852819"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/string_intern-843c8f315a4a9078
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test base_type::test::encode ... ok
[INFO] [stdout] test base_type::test::decode ... ok
[INFO] [stdout] test base_type::test::encode_serde ... ok
[INFO] [stdout] test base_type::test::clone ... ok
[INFO] [stdout] test base_type::test::decode_serde ... ok
[INFO] [stdout] test base_type::test::hash ... ok
[INFO] [stdout] test test::test_send ... ok
[INFO] [stdout] test base_type::test::eq ... ok
[INFO] [stdout] test test::test_sync ... ok
[INFO] [stdout] test base_type::test::ord ... ok
[INFO] [stdout] test base_type::test::distinct_validators ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests string-intern
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/base_type.rs - base_type::Symbol (line 26) ... ignored
[INFO] [stdout] test src/lib.rs -  (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "980e30ac127bbf928324d176881be06625fb79bee0760b1c03645d2bfc852819"`
[INFO] running `"docker" "rm" "-f" "980e30ac127bbf928324d176881be06625fb79bee0760b1c03645d2bfc852819"`
[INFO] [stdout] 980e30ac127bbf928324d176881be06625fb79bee0760b1c03645d2bfc852819