[INFO] crate multi_reader 0.1.0 is already in cache
[INFO] extracting crate multi_reader 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/multi_reader/0.1.0
[INFO] extracting crate multi_reader 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/multi_reader/0.1.0
[INFO] validating manifest of multi_reader-0.1.0 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 multi_reader-0.1.0 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 multi_reader-0.1.0
[INFO] finished frobbing multi_reader-0.1.0
[INFO] frobbed toml for multi_reader-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/multi_reader/0.1.0/Cargo.toml
[INFO] started frobbing multi_reader-0.1.0
[INFO] finished frobbing multi_reader-0.1.0
[INFO] frobbed toml for multi_reader-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/multi_reader/0.1.0/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 multi_reader-0.1.0 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-5/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/multi_reader/0.1.0:/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] 436b0aabae7a4f66bb416dacfa72c2266bb3e3e43d769b6cc184dbf7c1be2b0a
[INFO] running `"docker" "start" "-a" "436b0aabae7a4f66bb416dacfa72c2266bb3e3e43d769b6cc184dbf7c1be2b0a"`
[INFO] [stderr]    Compiling multi_reader v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `"docker" "inspect" "436b0aabae7a4f66bb416dacfa72c2266bb3e3e43d769b6cc184dbf7c1be2b0a"`
[INFO] running `"docker" "rm" "-f" "436b0aabae7a4f66bb416dacfa72c2266bb3e3e43d769b6cc184dbf7c1be2b0a"`
[INFO] [stdout] 436b0aabae7a4f66bb416dacfa72c2266bb3e3e43d769b6cc184dbf7c1be2b0a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/multi_reader/0.1.0:/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] 040a4d2e4e83914fc584539cf3e1c66204b158021fc2900fe9867eb426586462
[INFO] running `"docker" "start" "-a" "040a4d2e4e83914fc584539cf3e1c66204b158021fc2900fe9867eb426586462"`
[INFO] [stderr]    Compiling multi_reader v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `"docker" "inspect" "040a4d2e4e83914fc584539cf3e1c66204b158021fc2900fe9867eb426586462"`
[INFO] running `"docker" "rm" "-f" "040a4d2e4e83914fc584539cf3e1c66204b158021fc2900fe9867eb426586462"`
[INFO] [stdout] 040a4d2e4e83914fc584539cf3e1c66204b158021fc2900fe9867eb426586462
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/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/multi_reader/0.1.0:/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] 2d6a854616d6a311d0579c686909c2cea206b8d4d2611eb079502d9b06066d0e
[INFO] running `"docker" "start" "-a" "2d6a854616d6a311d0579c686909c2cea206b8d4d2611eb079502d9b06066d0e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/multi_reader-7add45d381fc7546
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::test_err_during_read ... ok
[INFO] [stdout] test tests::test_first_readers_is_empty ... ok
[INFO] [stdout] test tests::test_middle_readers_is_empty ... ok
[INFO] [stdout] test tests::test_last_readers_is_empty ... ok
[INFO] [stdout] test tests::test_only_empty_readers ... ok
[INFO] [stdout] test tests::test_single_reader ... ok
[INFO] [stdout] test tests::test_several_readers ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests multi_reader
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 6) ... 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" "2d6a854616d6a311d0579c686909c2cea206b8d4d2611eb079502d9b06066d0e"`
[INFO] running `"docker" "rm" "-f" "2d6a854616d6a311d0579c686909c2cea206b8d4d2611eb079502d9b06066d0e"`
[INFO] [stdout] 2d6a854616d6a311d0579c686909c2cea206b8d4d2611eb079502d9b06066d0e