Dec 12 07:26:37.049 INFO checking slack-0.22.0 against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 07:26:37.049 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-2/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 07:26:37.456 INFO [stdout] 39061065f2cf0d1dc3fd631971edc6d88f9658a49411d6aeca38acf483a18824
Dec 12 07:26:37.462 INFO running `"docker" "start" "-a" "39061065f2cf0d1dc3fd631971edc6d88f9658a49411d6aeca38acf483a18824"`
Dec 12 07:26:38.641 INFO [stderr] usermod: no changes
Dec 12 07:26:38.964 INFO [stderr]     Checking input_buffer v0.2.0
Dec 12 07:26:38.965 INFO [stderr]     Checking sha-1 v0.8.1
Dec 12 07:26:38.965 INFO [stderr]     Checking reqwest v0.9.5
Dec 12 07:26:40.441 INFO [stderr]     Checking tungstenite v0.6.1
Dec 12 07:26:46.816 INFO [stderr]     Checking slack_api v0.21.0
Dec 12 07:27:09.214 INFO [stderr]     Checking slack v0.22.0 (/source)
Dec 12 07:27:26.716 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.04s
Dec 12 07:27:26.716 INFO [stderr] su: No module specific data is present
Dec 12 07:27:27.194 INFO running `"docker" "inspect" "39061065f2cf0d1dc3fd631971edc6d88f9658a49411d6aeca38acf483a18824"`
Dec 12 07:27:27.342 INFO running `"docker" "rm" "-f" "39061065f2cf0d1dc3fd631971edc6d88f9658a49411d6aeca38acf483a18824"`
Dec 12 07:27:27.633 INFO [stdout] 39061065f2cf0d1dc3fd631971edc6d88f9658a49411d6aeca38acf483a18824