[INFO] crate futures-executor 0.2.1 is already in cache
[INFO] extracting crate futures-executor 0.2.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/futures-executor/0.2.1
[INFO] extracting crate futures-executor 0.2.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/futures-executor/0.2.1
[INFO] validating manifest of futures-executor-0.2.1 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 futures-executor-0.2.1 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 futures-executor-0.2.1
[INFO] finished frobbing futures-executor-0.2.1
[INFO] frobbed toml for futures-executor-0.2.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/futures-executor/0.2.1/Cargo.toml
[INFO] started frobbing futures-executor-0.2.1
[INFO] finished frobbing futures-executor-0.2.1
[INFO] frobbed toml for futures-executor-0.2.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/futures-executor/0.2.1/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 futures-executor-0.2.1 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-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/futures-executor/0.2.1:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 0c8d63f546b22638f94ad3d8925175a5a5b07f39c85f90b6b25735bcda110a47
[INFO] running `"docker" "start" "-a" "0c8d63f546b22638f94ad3d8925175a5a5b07f39c85f90b6b25735bcda110a47"`
[INFO] [stderr]    Compiling futures-executor v0.2.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `"docker" "inspect" "0c8d63f546b22638f94ad3d8925175a5a5b07f39c85f90b6b25735bcda110a47"`
[INFO] running `"docker" "rm" "-f" "0c8d63f546b22638f94ad3d8925175a5a5b07f39c85f90b6b25735bcda110a47"`
[INFO] [stdout] 0c8d63f546b22638f94ad3d8925175a5a5b07f39c85f90b6b25735bcda110a47
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/futures-executor/0.2.1:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] f493e1819994b9f57459ad44f884fee82b32aac1fe5020becf4f99086d149609
[INFO] running `"docker" "start" "-a" "f493e1819994b9f57459ad44f884fee82b32aac1fe5020becf4f99086d149609"`
[INFO] [stderr]    Compiling futures-executor v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] error[E0463]: can't find crate for `futures`
[INFO] [stderr]  --> tests/local_pool.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | extern crate futures;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: Could not compile `futures-executor`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "f493e1819994b9f57459ad44f884fee82b32aac1fe5020becf4f99086d149609"`
[INFO] running `"docker" "rm" "-f" "f493e1819994b9f57459ad44f884fee82b32aac1fe5020becf4f99086d149609"`
[INFO] [stdout] f493e1819994b9f57459ad44f884fee82b32aac1fe5020becf4f99086d149609