[INFO] updating cached repository hjr3/future-mpsc-example
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hjr3/future-mpsc-example
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hjr3/future-mpsc-example" "work/ex/beta-1.38-1/sources/1.37.0/gh/hjr3/future-mpsc-example"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/hjr3/future-mpsc-example'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hjr3/future-mpsc-example" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hjr3/future-mpsc-example"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hjr3/future-mpsc-example'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 88217f15cff0e029900e5d8820b55a8c5d7e4666
[INFO] sha for GitHub repo hjr3/future-mpsc-example: 88217f15cff0e029900e5d8820b55a8c5d7e4666
[INFO] validating manifest of hjr3/future-mpsc-example 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 hjr3/future-mpsc-example 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 hjr3/future-mpsc-example
[INFO] finished frobbing hjr3/future-mpsc-example
[INFO] frobbed toml for hjr3/future-mpsc-example written to work/ex/beta-1.38-1/sources/1.37.0/gh/hjr3/future-mpsc-example/Cargo.toml
[INFO] started frobbing hjr3/future-mpsc-example
[INFO] finished frobbing hjr3/future-mpsc-example
[INFO] frobbed toml for hjr3/future-mpsc-example written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/hjr3/future-mpsc-example/Cargo.toml
[INFO] crate hjr3/future-mpsc-example already has a lockfile, it will not be regenerated
[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 hjr3/future-mpsc-example against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hjr3/future-mpsc-example:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 9e59820ff023b5377d10a3ec6b884d67acd412e5a3b013ff442fa2f5b20062f2
[INFO] running `"docker" "start" "-a" "9e59820ff023b5377d10a3ec6b884d67acd412e5a3b013ff442fa2f5b20062f2"`
[INFO] [stderr]    Compiling net2 v0.2.26
[INFO] [stderr]    Compiling futures v0.1.10
[INFO] [stderr]    Compiling aho-corasick v0.6.2
[INFO] [stderr]    Compiling regex v0.2.1
[INFO] [stderr]    Compiling mio v0.6.4
[INFO] [stderr]    Compiling tokio-core v0.1.4
[INFO] [stderr]    Compiling env_logger v0.4.1
[INFO] [stderr]    Compiling future-mpsc-example v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.41s
[INFO] running `"docker" "inspect" "9e59820ff023b5377d10a3ec6b884d67acd412e5a3b013ff442fa2f5b20062f2"`
[INFO] running `"docker" "rm" "-f" "9e59820ff023b5377d10a3ec6b884d67acd412e5a3b013ff442fa2f5b20062f2"`
[INFO] [stdout] 9e59820ff023b5377d10a3ec6b884d67acd412e5a3b013ff442fa2f5b20062f2
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hjr3/future-mpsc-example:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] a952d2b4d5e01be4b537c746f0b09ba5543c0c0d0e70fa44808be335481bb71b
[INFO] running `"docker" "start" "-a" "a952d2b4d5e01be4b537c746f0b09ba5543c0c0d0e70fa44808be335481bb71b"`
[INFO] [stderr]    Compiling future-mpsc-example v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "a952d2b4d5e01be4b537c746f0b09ba5543c0c0d0e70fa44808be335481bb71b"`
[INFO] running `"docker" "rm" "-f" "a952d2b4d5e01be4b537c746f0b09ba5543c0c0d0e70fa44808be335481bb71b"`
[INFO] [stdout] a952d2b4d5e01be4b537c746f0b09ba5543c0c0d0e70fa44808be335481bb71b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/hjr3/future-mpsc-example:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 5bc9c2369a00105e88937a92cb7ce9e3e31079ae0b235b1e2ae827b975d5962e
[INFO] running `"docker" "start" "-a" "5bc9c2369a00105e88937a92cb7ce9e3e31079ae0b235b1e2ae827b975d5962e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/future_mpsc_example-793852a92ed7da52
[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" "5bc9c2369a00105e88937a92cb7ce9e3e31079ae0b235b1e2ae827b975d5962e"`
[INFO] running `"docker" "rm" "-f" "5bc9c2369a00105e88937a92cb7ce9e3e31079ae0b235b1e2ae827b975d5962e"`
[INFO] [stdout] 5bc9c2369a00105e88937a92cb7ce9e3e31079ae0b235b1e2ae827b975d5962e