[INFO] crate thruster-core-async-await 0.7.8 is already in cache
[INFO] extracting crate thruster-core-async-await 0.7.8 into work/ex/beta-1.37-6/sources/1.36.0/reg/thruster-core-async-await/0.7.8
[INFO] extracting crate thruster-core-async-await 0.7.8 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/thruster-core-async-await/0.7.8
[INFO] validating manifest of thruster-core-async-await-0.7.8 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 thruster-core-async-await-0.7.8 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 thruster-core-async-await-0.7.8
[INFO] finished frobbing thruster-core-async-await-0.7.8
[INFO] frobbed toml for thruster-core-async-await-0.7.8 written to work/ex/beta-1.37-6/sources/1.36.0/reg/thruster-core-async-await/0.7.8/Cargo.toml
[INFO] started frobbing thruster-core-async-await-0.7.8
[INFO] finished frobbing thruster-core-async-await-0.7.8
[INFO] frobbed toml for thruster-core-async-await-0.7.8 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/thruster-core-async-await/0.7.8/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 thruster-core-async-await-0.7.8 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/thruster-core-async-await/0.7.8:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] c795e2a5eb5e1cefe4ffac305423d9aa2b63ce984cb3e61d5d6c74e16149d70a
[INFO] running `"docker" "start" "-a" "c795e2a5eb5e1cefe4ffac305423d9aa2b63ce984cb3e61d5d6c74e16149d70a"`
[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 thruster-core-async-await v0.7.8 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `crate::errors::ThrusterError`
[INFO] [stderr]  --> src/middleware.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::errors::ThrusterError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.24s
[INFO] running `"docker" "inspect" "c795e2a5eb5e1cefe4ffac305423d9aa2b63ce984cb3e61d5d6c74e16149d70a"`
[INFO] running `"docker" "rm" "-f" "c795e2a5eb5e1cefe4ffac305423d9aa2b63ce984cb3e61d5d6c74e16149d70a"`
[INFO] [stdout] c795e2a5eb5e1cefe4ffac305423d9aa2b63ce984cb3e61d5d6c74e16149d70a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/thruster-core-async-await/0.7.8:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 535dfb09faece2d2f67002f042e0ff352c010342dc2094e29227766a6a09fe1b
[INFO] running `"docker" "start" "-a" "535dfb09faece2d2f67002f042e0ff352c010342dc2094e29227766a6a09fe1b"`
[INFO] [stderr]    Compiling thruster-core-async-await v0.7.8 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `crate::errors::ThrusterError`
[INFO] [stderr]  --> src/middleware.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::errors::ThrusterError;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `"docker" "inspect" "535dfb09faece2d2f67002f042e0ff352c010342dc2094e29227766a6a09fe1b"`
[INFO] running `"docker" "rm" "-f" "535dfb09faece2d2f67002f042e0ff352c010342dc2094e29227766a6a09fe1b"`
[INFO] [stdout] 535dfb09faece2d2f67002f042e0ff352c010342dc2094e29227766a6a09fe1b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/thruster-core-async-await/0.7.8:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 0842bd0229f3ed1fb9b9d9c2ff7726c6ab1862da725ba7ec1529d39fcb7b132b
[INFO] running `"docker" "start" "-a" "0842bd0229f3ed1fb9b9d9c2ff7726c6ab1862da725ba7ec1529d39fcb7b132b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/thruster_core_async_await-95df8bfe2665303e
[INFO] [stderr]    Doc-tests thruster-core-async-await
[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 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "0842bd0229f3ed1fb9b9d9c2ff7726c6ab1862da725ba7ec1529d39fcb7b132b"`
[INFO] running `"docker" "rm" "-f" "0842bd0229f3ed1fb9b9d9c2ff7726c6ab1862da725ba7ec1529d39fcb7b132b"`
[INFO] [stdout] 0842bd0229f3ed1fb9b9d9c2ff7726c6ab1862da725ba7ec1529d39fcb7b132b