[INFO] crate async-stdio 0.3.0-alpha.3 is already in cache
[INFO] extracting crate async-stdio 0.3.0-alpha.3 into work/ex/beta-1.37-6/sources/1.36.0/reg/async-stdio/0.3.0-alpha.3
[INFO] extracting crate async-stdio 0.3.0-alpha.3 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/async-stdio/0.3.0-alpha.3
[INFO] validating manifest of async-stdio-0.3.0-alpha.3 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 async-stdio-0.3.0-alpha.3 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 async-stdio-0.3.0-alpha.3
[INFO] finished frobbing async-stdio-0.3.0-alpha.3
[INFO] frobbed toml for async-stdio-0.3.0-alpha.3 written to work/ex/beta-1.37-6/sources/1.36.0/reg/async-stdio/0.3.0-alpha.3/Cargo.toml
[INFO] started frobbing async-stdio-0.3.0-alpha.3
[INFO] finished frobbing async-stdio-0.3.0-alpha.3
[INFO] frobbed toml for async-stdio-0.3.0-alpha.3 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/async-stdio/0.3.0-alpha.3/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 async-stdio-0.3.0-alpha.3 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/async-stdio/0.3.0-alpha.3:/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] a48b7da0ba95a1dca10e54fced8d0ae67f33c786a7d80e68531955e5328572c6
[INFO] running `"docker" "start" "-a" "a48b7da0ba95a1dca10e54fced8d0ae67f33c786a7d80e68531955e5328572c6"`
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling futures-sink-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling futures-executor-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling futures-preview v0.3.0-alpha.17
[INFO] [stderr]    Compiling async-stdio v0.3.0-alpha.3 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.65s
[INFO] running `"docker" "inspect" "a48b7da0ba95a1dca10e54fced8d0ae67f33c786a7d80e68531955e5328572c6"`
[INFO] running `"docker" "rm" "-f" "a48b7da0ba95a1dca10e54fced8d0ae67f33c786a7d80e68531955e5328572c6"`
[INFO] [stdout] a48b7da0ba95a1dca10e54fced8d0ae67f33c786a7d80e68531955e5328572c6
[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/async-stdio/0.3.0-alpha.3:/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] a95cb2d07c0168de37325651b051768f84d4b8f9325e7fecb0b61e4e0118cff3
[INFO] running `"docker" "start" "-a" "a95cb2d07c0168de37325651b051768f84d4b8f9325e7fecb0b61e4e0118cff3"`
[INFO] [stderr]    Compiling async-stdio v0.3.0-alpha.3 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `"docker" "inspect" "a95cb2d07c0168de37325651b051768f84d4b8f9325e7fecb0b61e4e0118cff3"`
[INFO] running `"docker" "rm" "-f" "a95cb2d07c0168de37325651b051768f84d4b8f9325e7fecb0b61e4e0118cff3"`
[INFO] [stdout] a95cb2d07c0168de37325651b051768f84d4b8f9325e7fecb0b61e4e0118cff3
[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/async-stdio/0.3.0-alpha.3:/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] 2c57cb7e98c6c845791a6b7ba590e62eacfb9dc6deed65d5faa0af449fb5fcdd
[INFO] running `"docker" "start" "-a" "2c57cb7e98c6c845791a6b7ba590e62eacfb9dc6deed65d5faa0af449fb5fcdd"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/async_stdio-e818034c27c78f24
[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 async-stdio
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 13) ... 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" "2c57cb7e98c6c845791a6b7ba590e62eacfb9dc6deed65d5faa0af449fb5fcdd"`
[INFO] running `"docker" "rm" "-f" "2c57cb7e98c6c845791a6b7ba590e62eacfb9dc6deed65d5faa0af449fb5fcdd"`
[INFO] [stdout] 2c57cb7e98c6c845791a6b7ba590e62eacfb9dc6deed65d5faa0af449fb5fcdd