Dec 17 17:49:50.367 INFO checking pietroalbini/crater-tree against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 17:49:50.367 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/pietroalbini/crater-tree:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 17:49:50.801 INFO [stdout] da036b37f4709669f79ab4667c923dc8e8d18aacdb42749c3c838f65500d5abe
Dec 17 17:49:50.803 INFO running `"docker" "start" "-a" "da036b37f4709669f79ab4667c923dc8e8d18aacdb42749c3c838f65500d5abe"`
Dec 17 17:49:52.457 INFO [stderr]     Checking encoding_rs v0.8.8
Dec 17 17:49:52.458 INFO [stderr]     Checking tokio-executor v0.1.2
Dec 17 17:49:52.459 INFO [stderr]    Compiling openssl-sys v0.9.36
Dec 17 17:49:52.462 INFO [stderr]     Checking crossbeam-epoch v0.5.2
Dec 17 17:49:52.462 INFO [stderr]     Checking bytes v0.4.10
Dec 17 17:49:52.462 INFO [stderr]     Checking futures-cpupool v0.1.8
Dec 17 17:49:52.463 INFO [stderr]     Checking want v0.0.6
Dec 17 17:49:52.463 INFO [stderr]    Compiling rayon v1.0.3
Dec 17 17:49:52.988 INFO [stderr]     Checking semver v0.9.0
Dec 17 17:49:53.039 INFO [stderr]     Checking serde_json v1.0.33
Dec 17 17:49:53.374 INFO [stderr]     Checking mime v0.3.9
Dec 17 17:49:53.900 INFO [stderr]    Compiling syn v0.15.23
Dec 17 17:49:54.296 INFO [stderr]     Checking serde_urlencoded v0.5.1
Dec 17 17:49:56.421 INFO [stderr]     Checking libflate v0.1.18
Dec 17 17:49:57.610 INFO [stderr]     Checking tokio-timer v0.2.5
Dec 17 17:49:58.805 INFO [stderr]     Checking crossbeam-deque v0.6.1
Dec 17 17:49:59.808 INFO [stderr]     Checking error-chain v0.12.0
Dec 17 17:49:59.892 INFO [stderr]     Checking tokio-io v0.1.6
Dec 17 17:50:00.368 INFO [stderr]     Checking http v0.1.13
Dec 17 17:50:01.336 INFO [stderr]    Compiling mime_guess v2.0.0-alpha.6
Dec 17 17:50:02.076 INFO [stderr]     Checking tokio-threadpool v0.1.7
Dec 17 17:50:02.729 INFO [stderr]    Compiling openssl v0.10.12
Dec 17 17:50:02.952 INFO [stderr]    Compiling native-tls v0.2.1
Dec 17 17:50:02.997 INFO [stderr]     Checking tokio-reactor v0.1.1
Dec 17 17:50:05.496 INFO [stderr]     Checking tokio-fs v0.1.3
Dec 17 17:50:06.216 INFO [stderr]     Checking tokio-tcp v0.1.0
Dec 17 17:50:06.246 INFO [stderr]     Checking tokio-udp v0.1.0
Dec 17 17:50:07.689 INFO [stderr]     Checking tokio v0.1.7
Dec 17 17:50:12.824 INFO [stderr]     Checking h2 v0.1.12
Dec 17 17:50:25.492 INFO [stderr]    Compiling synstructure v0.10.0
Dec 17 17:50:25.492 INFO [stderr]    Compiling serde_derive v1.0.82
Dec 17 17:50:25.572 INFO [stderr]     Checking hyper v0.12.14
Dec 17 17:50:32.900 INFO [stderr]    Compiling failure_derive v0.1.3
Dec 17 17:50:37.228 INFO [stderr]     Checking failure v0.1.3
Dec 17 17:50:38.583 INFO [stderr]     Checking hyper-tls v0.3.1
Dec 17 17:50:39.661 INFO [stderr]     Checking reqwest v0.9.5
Dec 17 17:50:50.912 INFO [stderr]     Checking cargo_metadata v0.6.4
Dec 17 17:50:52.161 INFO [stderr]     Checking crater-tree v0.1.0 (/opt/crater/workdir)
Dec 17 17:50:54.941 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
Dec 17 17:50:56.076 INFO running `"docker" "inspect" "da036b37f4709669f79ab4667c923dc8e8d18aacdb42749c3c838f65500d5abe"`
Dec 17 17:50:56.390 INFO running `"docker" "rm" "-f" "da036b37f4709669f79ab4667c923dc8e8d18aacdb42749c3c838f65500d5abe"`
Dec 17 17:50:56.720 INFO [stdout] da036b37f4709669f79ab4667c923dc8e8d18aacdb42749c3c838f65500d5abe