[INFO] crate serial_test 0.2.0 is already in cache
[INFO] extracting crate serial_test 0.2.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/serial_test/0.2.0
[INFO] extracting crate serial_test 0.2.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/serial_test/0.2.0
[INFO] validating manifest of serial_test-0.2.0 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 serial_test-0.2.0 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 serial_test-0.2.0
[INFO] finished frobbing serial_test-0.2.0
[INFO] frobbed toml for serial_test-0.2.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/serial_test/0.2.0/Cargo.toml
[INFO] started frobbing serial_test-0.2.0
[INFO] finished frobbing serial_test-0.2.0
[INFO] frobbed toml for serial_test-0.2.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/serial_test/0.2.0/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 serial_test-0.2.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/serial_test/0.2.0:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] d94b4f4e048363f7b9e32b37a0dfe03c7d5026e6de2a557b6e6cae25ea0d33e9
[INFO] running `"docker" "start" "-a" "d94b4f4e048363f7b9e32b37a0dfe03c7d5026e6de2a557b6e6cae25ea0d33e9"`
[INFO] [stderr]    Compiling serial_test v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `"docker" "inspect" "d94b4f4e048363f7b9e32b37a0dfe03c7d5026e6de2a557b6e6cae25ea0d33e9"`
[INFO] running `"docker" "rm" "-f" "d94b4f4e048363f7b9e32b37a0dfe03c7d5026e6de2a557b6e6cae25ea0d33e9"`
[INFO] [stdout] d94b4f4e048363f7b9e32b37a0dfe03c7d5026e6de2a557b6e6cae25ea0d33e9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/serial_test/0.2.0:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 93d594420db2e15d17bcadf8914e423c22c799c39719d6ddc69824ec93813ac5
[INFO] running `"docker" "start" "-a" "93d594420db2e15d17bcadf8914e423c22c799c39719d6ddc69824ec93813ac5"`
[INFO] [stderr]    Compiling serial_test v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `"docker" "inspect" "93d594420db2e15d17bcadf8914e423c22c799c39719d6ddc69824ec93813ac5"`
[INFO] running `"docker" "rm" "-f" "93d594420db2e15d17bcadf8914e423c22c799c39719d6ddc69824ec93813ac5"`
[INFO] [stdout] 93d594420db2e15d17bcadf8914e423c22c799c39719d6ddc69824ec93813ac5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/serial_test/0.2.0:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] f72c1695806111aa9c3d36c324333059d462af12a3962827679aa8cee613b33f
[INFO] running `"docker" "start" "-a" "f72c1695806111aa9c3d36c324333059d462af12a3962827679aa8cee613b33f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/serial_test-5027c35196972db3
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tests-3583ff8dee78abde
[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 1 test
[INFO] [stdout] test test_empty_serial_call ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serial_test
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - serial_core (line 15) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f72c1695806111aa9c3d36c324333059d462af12a3962827679aa8cee613b33f"`
[INFO] running `"docker" "rm" "-f" "f72c1695806111aa9c3d36c324333059d462af12a3962827679aa8cee613b33f"`
[INFO] [stdout] f72c1695806111aa9c3d36c324333059d462af12a3962827679aa8cee613b33f