[INFO] updating cached repository https://github.com/kvinwang/astate
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0b04c300dc321bb82a4ff8cbf2fe85a0adac019e
[INFO] testing kvinwang/astate against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkvinwang%2Fastate" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kvinwang/astate on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/kvinwang/astate
[INFO] finished tweaking git repo https://github.com/kvinwang/astate
[INFO] tweaked toml for git repo https://github.com/kvinwang/astate written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/kvinwang/astate already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] f83ccadf91eef6f0548693921913e245f5df046a9c6af58c844f3511e9b6f09f
[INFO] running `"docker" "start" "-a" "f83ccadf91eef6f0548693921913e245f5df046a9c6af58c844f3511e9b6f09f"`
[INFO] [stderr]    Compiling futures v0.1.27
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling tokio-sync v0.2.0 (https://github.com/tokio-rs/tokio#d4adeeef)
[INFO] [stderr]    Compiling tokio-io v0.2.0 (https://github.com/tokio-rs/tokio#d4adeeef)
[INFO] [stderr]    Compiling tokio-sync v0.1.6
[INFO] [stderr]    Compiling tokio-executor v0.2.0 (https://github.com/tokio-rs/tokio#d4adeeef)
[INFO] [stderr]    Compiling tokio-executor v0.1.7
[INFO] [stderr]    Compiling tokio-threadpool v0.2.0 (https://github.com/tokio-rs/tokio#d4adeeef)
[INFO] [stderr]    Compiling tokio-current-thread v0.2.0 (https://github.com/tokio-rs/tokio#d4adeeef)
[INFO] [stderr]    Compiling tokio-timer v0.3.0 (https://github.com/tokio-rs/tokio#d4adeeef)
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling tokio-reactor v0.2.0 (https://github.com/tokio-rs/tokio#d4adeeef)
[INFO] [stderr]    Compiling tokio-codec v0.2.0 (https://github.com/tokio-rs/tokio#d4adeeef)
[INFO] [stderr]    Compiling tokio-futures v0.2.0 (https://github.com/tokio-rs/tokio#d4adeeef)
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> /opt/rustwide/cargo-home/git/checkouts/tokio-377c595163f99a10/d4adeee/tokio-futures/src/lib.rs:2:25
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(async_await, await_macro)]
[INFO] [stderr]   |                         ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: subsumed by `.await` syntax
[INFO] [stderr]  --> /opt/rustwide/cargo-home/git/checkouts/tokio-377c595163f99a10/d4adeee/tokio-futures/src/lib.rs:2:25
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(async_await, await_macro)]
[INFO] [stderr]   |                         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/git/checkouts/tokio-377c595163f99a10/d4adeee/tokio-futures/src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(async_await, await_macro)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0557.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `tokio-futures`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "f83ccadf91eef6f0548693921913e245f5df046a9c6af58c844f3511e9b6f09f"`
[INFO] running `"docker" "rm" "-f" "f83ccadf91eef6f0548693921913e245f5df046a9c6af58c844f3511e9b6f09f"`
[INFO] [stdout] f83ccadf91eef6f0548693921913e245f5df046a9c6af58c844f3511e9b6f09f