Dec 04 12:22:59.688 INFO checking pietroalbini/crater-tree against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 12:22:59.688 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 12:23:00.050 INFO [stdout] 55f7c236e407172f432b8162f09172ef74c8796a93a9c7d38f97e3404e8c2626
Dec 04 12:23:00.052 INFO running `"docker" "start" "-a" "55f7c236e407172f432b8162f09172ef74c8796a93a9c7d38f97e3404e8c2626"`
Dec 04 12:23:02.590 INFO [stderr] usermod: no changes
Dec 04 12:23:02.975 INFO [stderr]    Compiling cc v1.0.12
Dec 04 12:23:02.975 INFO [stderr]     Checking bitflags v1.0.2
Dec 04 12:23:03.015 INFO [stderr]     Checking encoding_rs v0.8.8
Dec 04 12:23:03.015 INFO [stderr]     Checking bytes v0.4.10
Dec 04 12:23:03.015 INFO [stderr]     Checking crossbeam-epoch v0.5.2
Dec 04 12:23:03.015 INFO [stderr]     Checking want v0.0.6
Dec 04 12:23:03.015 INFO [stderr]    Compiling rayon v1.0.3
Dec 04 12:23:03.015 INFO [stderr]     Checking serde_json v1.0.33
Dec 04 12:23:03.613 INFO [stderr]     Checking mime v0.3.9
Dec 04 12:23:03.947 INFO [stderr]    Compiling syn v0.15.7
Dec 04 12:23:05.199 INFO [stderr]     Checking libflate v0.1.18
Dec 04 12:23:06.073 INFO [stderr]     Checking serde_urlencoded v0.5.1
Dec 04 12:23:12.728 INFO [stderr]     Checking crossbeam-deque v0.6.1
Dec 04 12:23:12.955 INFO [stderr]     Checking tokio-io v0.1.6
Dec 04 12:23:12.988 INFO [stderr]     Checking http v0.1.13
Dec 04 12:23:13.072 INFO [stderr]    Compiling mime_guess v2.0.0-alpha.6
Dec 04 12:23:15.371 INFO [stderr]    Compiling openssl-sys v0.9.36
Dec 04 12:23:15.930 INFO [stderr]    Compiling backtrace-sys v0.1.16
Dec 04 12:23:20.018 INFO [stderr]     Checking tokio-threadpool v0.1.7
Dec 04 12:23:20.119 INFO [stderr]     Checking tokio-reactor v0.1.1
Dec 04 12:23:21.567 INFO [stderr]    Compiling openssl v0.10.12
Dec 04 12:23:21.624 INFO [stderr]    Compiling native-tls v0.2.1
Dec 04 12:23:24.487 INFO [stderr]     Checking tokio-tcp v0.1.0
Dec 04 12:23:25.711 INFO [stderr]     Checking tokio-udp v0.1.0
Dec 04 12:23:27.416 INFO [stderr]     Checking tokio-fs v0.1.3
Dec 04 12:23:29.463 INFO [stderr]     Checking h2 v0.1.12
Dec 04 12:23:31.623 INFO [stderr]     Checking tokio v0.1.7
Dec 04 12:23:45.091 INFO [stderr]    Compiling synstructure v0.10.0
Dec 04 12:23:45.091 INFO [stderr]    Compiling serde_derive v1.0.80
Dec 04 12:23:54.919 INFO [stderr]     Checking backtrace v0.3.6
Dec 04 12:23:56.836 INFO [stderr]     Checking error-chain v0.12.0
Dec 04 12:23:56.875 INFO [stderr]    Compiling failure_derive v0.1.3
Dec 04 12:23:56.924 INFO [stderr]     Checking hyper v0.12.14
Dec 04 12:24:02.299 INFO [stderr]     Checking failure v0.1.3
Dec 04 12:24:09.999 INFO [stderr]     Checking hyper-tls v0.3.1
Dec 04 12:24:12.921 INFO [stderr]     Checking reqwest v0.9.5
Dec 04 12:24:14.119 INFO [stderr]     Checking cargo_metadata v0.6.3
Dec 04 12:24:16.670 INFO [stderr]     Checking crater-tree v0.1.0 (/source)
Dec 04 12:24:20.635 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 18s
Dec 04 12:24:20.679 INFO [stderr] su: No module specific data is present
Dec 04 12:24:21.422 INFO running `"docker" "inspect" "55f7c236e407172f432b8162f09172ef74c8796a93a9c7d38f97e3404e8c2626"`
Dec 04 12:24:21.546 INFO running `"docker" "rm" "-f" "55f7c236e407172f432b8162f09172ef74c8796a93a9c7d38f97e3404e8c2626"`
Dec 04 12:24:21.673 INFO [stdout] 55f7c236e407172f432b8162f09172ef74c8796a93a9c7d38f97e3404e8c2626