[INFO] updating cached repository kbacha/overload-bounded-async-channel
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kbacha/overload-bounded-async-channel
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kbacha/overload-bounded-async-channel" "work/ex/beta-1.37-6/sources/1.36.0/gh/kbacha/overload-bounded-async-channel"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/kbacha/overload-bounded-async-channel'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kbacha/overload-bounded-async-channel" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kbacha/overload-bounded-async-channel"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kbacha/overload-bounded-async-channel'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1fda4055d5f1988acc8b2d10f320dc75a507ee64
[INFO] sha for GitHub repo kbacha/overload-bounded-async-channel: 1fda4055d5f1988acc8b2d10f320dc75a507ee64
[INFO] validating manifest of kbacha/overload-bounded-async-channel 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 kbacha/overload-bounded-async-channel 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 kbacha/overload-bounded-async-channel
[INFO] finished frobbing kbacha/overload-bounded-async-channel
[INFO] frobbed toml for kbacha/overload-bounded-async-channel written to work/ex/beta-1.37-6/sources/1.36.0/gh/kbacha/overload-bounded-async-channel/Cargo.toml
[INFO] started frobbing kbacha/overload-bounded-async-channel
[INFO] finished frobbing kbacha/overload-bounded-async-channel
[INFO] frobbed toml for kbacha/overload-bounded-async-channel written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kbacha/overload-bounded-async-channel/Cargo.toml
[INFO] crate kbacha/overload-bounded-async-channel already has a lockfile, it will not be regenerated
[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 kbacha/overload-bounded-async-channel 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-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/kbacha/overload-bounded-async-channel:/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] ca3555d867e12bbaf0a76e77fdb953f3ce53440db3c1bcda8b19d1cc130649fb
[INFO] running `"docker" "start" "-a" "ca3555d867e12bbaf0a76e77fdb953f3ce53440db3c1bcda8b19d1cc130649fb"`
[INFO] [stderr]    Compiling tokio-io v0.1.7
[INFO] [stderr]    Compiling tokio-codec v0.1.0
[INFO] [stderr]    Compiling tokio-reactor v0.1.2
[INFO] [stderr]    Compiling tokio-fs v0.1.2
[INFO] [stderr]    Compiling tokio-udp v0.1.1
[INFO] [stderr]    Compiling tokio-tcp v0.1.0
[INFO] [stderr]    Compiling tokio v0.1.7
[INFO] [stderr]    Compiling overload-bounded-async-channel v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `futures::prelude::*`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use futures::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.10s
[INFO] running `"docker" "inspect" "ca3555d867e12bbaf0a76e77fdb953f3ce53440db3c1bcda8b19d1cc130649fb"`
[INFO] running `"docker" "rm" "-f" "ca3555d867e12bbaf0a76e77fdb953f3ce53440db3c1bcda8b19d1cc130649fb"`
[INFO] [stdout] ca3555d867e12bbaf0a76e77fdb953f3ce53440db3c1bcda8b19d1cc130649fb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/kbacha/overload-bounded-async-channel:/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] 5770f65eaf44c6610661e83cce7f8ed79c69ff1f5ae2fdcad499873ed436a7f7
[INFO] running `"docker" "start" "-a" "5770f65eaf44c6610661e83cce7f8ed79c69ff1f5ae2fdcad499873ed436a7f7"`
[INFO] [stderr]    Compiling overload-bounded-async-channel v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `futures::prelude::*`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use futures::prelude::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `"docker" "inspect" "5770f65eaf44c6610661e83cce7f8ed79c69ff1f5ae2fdcad499873ed436a7f7"`
[INFO] running `"docker" "rm" "-f" "5770f65eaf44c6610661e83cce7f8ed79c69ff1f5ae2fdcad499873ed436a7f7"`
[INFO] [stdout] 5770f65eaf44c6610661e83cce7f8ed79c69ff1f5ae2fdcad499873ed436a7f7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/kbacha/overload-bounded-async-channel:/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] 060979f808d5f52070fd8f5447fe68870df34daa2d2579bdd2971f6d2f02e00f
[INFO] running `"docker" "start" "-a" "060979f808d5f52070fd8f5447fe68870df34daa2d2579bdd2971f6d2f02e00f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/overload_bounded_async_channel-81bc748856ec2a7c
[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" "060979f808d5f52070fd8f5447fe68870df34daa2d2579bdd2971f6d2f02e00f"`
[INFO] running `"docker" "rm" "-f" "060979f808d5f52070fd8f5447fe68870df34daa2d2579bdd2971f6d2f02e00f"`
[INFO] [stdout] 060979f808d5f52070fd8f5447fe68870df34daa2d2579bdd2971f6d2f02e00f