[INFO] crate control-flow 0.1.1 is already in cache
[INFO] extracting crate control-flow 0.1.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/control-flow/0.1.1
[INFO] extracting crate control-flow 0.1.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/control-flow/0.1.1
[INFO] validating manifest of control-flow-0.1.1 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 control-flow-0.1.1 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 control-flow-0.1.1
[INFO] finished frobbing control-flow-0.1.1
[INFO] frobbed toml for control-flow-0.1.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/control-flow/0.1.1/Cargo.toml
[INFO] started frobbing control-flow-0.1.1
[INFO] finished frobbing control-flow-0.1.1
[INFO] frobbed toml for control-flow-0.1.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/control-flow/0.1.1/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 control-flow-0.1.1 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/control-flow/0.1.1:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] a30224ad71f2cceabac5106b6447c123d88518f853ecc06808df6d460d7a4b8d
[INFO] running `"docker" "start" "-a" "a30224ad71f2cceabac5106b6447c123d88518f853ecc06808df6d460d7a4b8d"`
[INFO] [stderr]    Compiling control-flow v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `"docker" "inspect" "a30224ad71f2cceabac5106b6447c123d88518f853ecc06808df6d460d7a4b8d"`
[INFO] running `"docker" "rm" "-f" "a30224ad71f2cceabac5106b6447c123d88518f853ecc06808df6d460d7a4b8d"`
[INFO] [stdout] a30224ad71f2cceabac5106b6447c123d88518f853ecc06808df6d460d7a4b8d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/control-flow/0.1.1:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 0ba724451f057f5dd9b865fa118a07ceac50a669bf84ce2693de565bc901b18c
[INFO] running `"docker" "start" "-a" "0ba724451f057f5dd9b865fa118a07ceac50a669bf84ce2693de565bc901b18c"`
[INFO] [stderr]    Compiling control-flow v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "0ba724451f057f5dd9b865fa118a07ceac50a669bf84ce2693de565bc901b18c"`
[INFO] running `"docker" "rm" "-f" "0ba724451f057f5dd9b865fa118a07ceac50a669bf84ce2693de565bc901b18c"`
[INFO] [stdout] 0ba724451f057f5dd9b865fa118a07ceac50a669bf84ce2693de565bc901b18c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/control-flow/0.1.1:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 01c5e33feba161c998baea577fa0e7d55895e33fbe094db94efa71ebc058954e
[INFO] running `"docker" "start" "-a" "01c5e33feba161c998baea577fa0e7d55895e33fbe094db94efa71ebc058954e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/control_flow-52145c04d1e6bdc9
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::direct_value ... ok
[INFO] [stdout] test tests::loop_break ... ok
[INFO] [stdout] test tests::loop_continue ... ok
[INFO] [stdout] test tests::return_early ... ok
[INFO] [stdout] test tests::store_ctrl ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests control-flow
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 8) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs -  (line 8) stdout ----
[INFO] [stdout] error[E0468]: an `extern crate` loading macros must be at the crate root
[INFO] [stdout]  --> src/lib.rs:10:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate control_flow;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0468`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs -  (line 8)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "01c5e33feba161c998baea577fa0e7d55895e33fbe094db94efa71ebc058954e"`
[INFO] running `"docker" "rm" "-f" "01c5e33feba161c998baea577fa0e7d55895e33fbe094db94efa71ebc058954e"`
[INFO] [stdout] 01c5e33feba161c998baea577fa0e7d55895e33fbe094db94efa71ebc058954e