Dec 19 21:01:47.755 INFO checking adrien-thebault/r2d2 against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 21:01:47.755 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/adrien-thebault/r2d2:/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=forbid" "-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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 21:01:47.991 INFO [stdout] 44631cace2088260c779047abefc3e7c073b7e5b4de5deca27d7265b75d56a56
Dec 19 21:01:47.994 INFO running `"docker" "start" "-a" "44631cace2088260c779047abefc3e7c073b7e5b4de5deca27d7265b75d56a56"`
Dec 19 21:01:48.838 INFO [stderr]     Checking input_buffer v0.1.1
Dec 19 21:01:48.841 INFO [stderr]     Checking fern v0.5.6
Dec 19 21:01:48.842 INFO [stderr]     Checking tokio-signal v0.2.5
Dec 19 21:01:48.843 INFO [stderr]     Checking trust-dns-proto v0.4.0
Dec 19 21:01:48.843 INFO [stderr]     Checking tokio-core v0.1.17
Dec 19 21:01:49.578 INFO [stderr]     Checking tungstenite v0.5.4
Dec 19 21:01:51.748 INFO [stderr]     Checking hyper v0.11.27
Dec 19 21:01:51.748 INFO [stderr]     Checking tokio-tls v0.1.4
Dec 19 21:01:53.745 INFO [stderr]     Checking trust-dns-resolver v0.9.1
Dec 19 21:01:56.664 INFO [stderr]     Checking actix v0.7.4
Dec 19 21:02:00.804 INFO [stderr]     Checking hyper-tls v0.1.4
Dec 19 21:02:01.992 INFO [stderr]     Checking reqwest v0.8.8
Dec 19 21:02:04.137 INFO [stderr]     Checking slack_api v0.20.0
Dec 19 21:02:23.429 INFO [stderr]     Checking slack v0.21.0
Dec 19 21:02:28.642 INFO [stderr]     Checking r2d2 v0.1.0 (/opt/crater/workdir)
Dec 19 21:02:30.928 INFO [stderr] warning: cannot find type `Message` in this scope
Dec 19 21:02:30.928 INFO [stderr]  --> src/messages/register_recipient.rs:6:8
Dec 19 21:02:30.928 INFO [stderr]   |
Dec 19 21:02:30.928 INFO [stderr] 6 |     M: Message + Send,
Dec 19 21:02:30.928 INFO [stderr]   |        ^^^^^^^ names from parent modules are not accessible without an explicit import
Dec 19 21:02:30.928 INFO [stderr]   |
Dec 19 21:02:30.928 INFO [stderr]   = note: #[warn(proc_macro_derive_resolution_fallback)] on by default
Dec 19 21:02:30.928 INFO [stderr]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 19 21:02:30.928 INFO [stderr]   = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
Dec 19 21:02:30.928 INFO [stderr] 
Dec 19 21:02:31.142 INFO [stderr] warning: cannot find type `Message` in this scope
Dec 19 21:02:31.142 INFO [stderr]  --> src/messages/register_recipient.rs:6:8
Dec 19 21:02:31.142 INFO [stderr]   |
Dec 19 21:02:31.142 INFO [stderr] 6 |     M: Message + Send,
Dec 19 21:02:31.142 INFO [stderr]   |        ^^^^^^^ names from parent modules are not accessible without an explicit import
Dec 19 21:02:31.142 INFO [stderr]   |
Dec 19 21:02:31.142 INFO [stderr]   = note: #[warn(proc_macro_derive_resolution_fallback)] on by default
Dec 19 21:02:31.142 INFO [stderr]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 19 21:02:31.142 INFO [stderr]   = note: for more information, see issue #50504 <https://github.com/rust-lang/rust/issues/50504>
Dec 19 21:02:31.142 INFO [stderr] 
Dec 19 21:02:32.010 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.52s
Dec 19 21:02:33.028 INFO running `"docker" "inspect" "44631cace2088260c779047abefc3e7c073b7e5b4de5deca27d7265b75d56a56"`
Dec 19 21:02:33.411 INFO running `"docker" "rm" "-f" "44631cace2088260c779047abefc3e7c073b7e5b4de5deca27d7265b75d56a56"`
Dec 19 21:02:33.788 INFO [stdout] 44631cace2088260c779047abefc3e7c073b7e5b4de5deca27d7265b75d56a56