Dec 17 16:30:03.671 INFO checking rust-lang/rust-playpen against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 16:30:03.671 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/rust-lang/rust-playpen:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 16:30:04.270 INFO [stdout] 03ad6e2e3dfcaddc0ef1d2bfb7753f6a24d6a20d538c081a6bf25ecae41f3824
Dec 17 16:30:04.273 INFO running `"docker" "start" "-a" "03ad6e2e3dfcaddc0ef1d2bfb7753f6a24d6a20d538c081a6bf25ecae41f3824"`
Dec 17 16:30:06.396 INFO [stderr]    Compiling gcc v0.3.53
Dec 17 16:30:06.400 INFO [stderr]     Checking sequence_trie v0.2.1
Dec 17 16:30:06.400 INFO [stderr]     Checking serde v1.0.12
Dec 17 16:30:06.404 INFO [stderr]     Checking iovec v0.1.0
Dec 17 16:30:06.405 INFO [stderr]     Checking memchr v1.0.1
Dec 17 16:30:06.406 INFO [stderr]     Checking wait-timeout v0.1.5
Dec 17 16:30:06.408 INFO [stderr]     Checking tokio-service v0.1.0
Dec 17 16:30:06.409 INFO [stderr]     Checking tokio-timer v0.1.2
Dec 17 16:30:07.699 INFO [stderr]     Checking libflate v0.1.11
Dec 17 16:30:07.770 INFO [stderr]     Checking futures-cpupool v0.1.5
Dec 17 16:30:07.918 INFO [stderr]     Checking bytes v0.4.5
Dec 17 16:30:08.356 INFO [stderr]     Checking mio v0.6.10
Dec 17 16:30:08.401 INFO [stderr]     Checking aho-corasick v0.6.3
Dec 17 16:30:09.737 INFO [stderr]     Checking hyper v0.10.13
Dec 17 16:30:09.787 INFO [stderr]     Checking chrono v0.4.0
Dec 17 16:30:12.597 INFO [stderr]     Checking regex v0.2.2
Dec 17 16:30:13.852 INFO [stderr]     Checking tokio-io v0.1.3
Dec 17 16:30:21.454 INFO [stderr]     Checking tokio-core v0.1.9
Dec 17 16:30:21.546 INFO [stderr]     Checking tokio-mockstream v1.1.0
Dec 17 16:30:21.900 INFO [stderr]    Compiling openssl-sys v0.9.17
Dec 17 16:30:21.900 INFO [stderr]    Compiling backtrace-sys v0.1.12
Dec 17 16:30:27.724 INFO [stderr]     Checking env_logger v0.4.3
Dec 17 16:30:28.452 INFO [stderr]     Checking tokio-proto v0.1.1
Dec 17 16:30:29.367 INFO [stderr]    Compiling openssl v0.9.17
Dec 17 16:30:33.664 INFO [stderr]     Checking iron v0.5.1
Dec 17 16:30:35.552 INFO [stderr]     Checking hyper v0.11.2
Dec 17 16:30:36.552 INFO [stderr]     Checking mount v0.3.0
Dec 17 16:30:36.552 INFO [stderr]     Checking router v0.5.1
Dec 17 16:30:37.802 INFO [stderr]     Checking staticfile v0.4.0
Dec 17 16:30:43.646 INFO [stderr]     Checking native-tls v0.1.4
Dec 17 16:30:44.997 INFO [stderr]     Checking tokio-tls v0.1.3
Dec 17 16:30:47.725 INFO [stderr]     Checking toml v0.4.5
Dec 17 16:30:47.725 INFO [stderr]     Checking serde_json v1.0.3
Dec 17 16:30:47.725 INFO [stderr]     Checking serde_urlencoded v0.5.1
Dec 17 16:30:55.733 INFO [stderr]     Checking hyper-tls v0.1.2
Dec 17 16:30:56.834 INFO [stderr]     Checking reqwest v0.7.3
Dec 17 16:30:57.132 INFO [stderr]     Checking backtrace v0.3.3
Dec 17 16:30:57.822 INFO [stderr]     Checking error-chain v0.10.0
Dec 17 16:30:58.476 INFO [stderr]     Checking irc v0.12.4
Dec 17 16:31:01.114 INFO [stderr]     Checking rust-playpen v0.1.0 (/opt/crater/workdir)
Dec 17 16:31:02.596 INFO [stderr] warning: unused `#[macro_use]` import
Dec 17 16:31:02.597 INFO [stderr]  --> src/bin/playpen.rs:2:1
Dec 17 16:31:02.597 INFO [stderr]   |
Dec 17 16:31:02.597 INFO [stderr] 2 | #[macro_use] extern crate log;
Dec 17 16:31:02.598 INFO [stderr]   | ^^^^^^^^^^^^
Dec 17 16:31:02.598 INFO [stderr]   |
Dec 17 16:31:02.598 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 16:31:02.598 INFO [stderr] 
Dec 17 16:31:02.868 INFO [stderr] warning: unused `#[macro_use]` import
Dec 17 16:31:02.869 INFO [stderr]  --> src/bin/playpen.rs:2:1
Dec 17 16:31:02.869 INFO [stderr]   |
Dec 17 16:31:02.869 INFO [stderr] 2 | #[macro_use] extern crate log;
Dec 17 16:31:02.870 INFO [stderr]   | ^^^^^^^^^^^^
Dec 17 16:31:02.870 INFO [stderr]   |
Dec 17 16:31:02.870 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 16:31:02.870 INFO [stderr] 
Dec 17 16:31:03.936 INFO [stderr] warning: unused imports: `AssertUnwindSafe`, `catch_unwind`
Dec 17 16:31:03.936 INFO [stderr]   --> src/bin/playbot.rs:14:18
Dec 17 16:31:03.936 INFO [stderr]    |
Dec 17 16:31:03.936 INFO [stderr] 14 | use std::panic::{AssertUnwindSafe, catch_unwind};
Dec 17 16:31:03.936 INFO [stderr]    |                  ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^
Dec 17 16:31:03.936 INFO [stderr]    |
Dec 17 16:31:03.936 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 17 16:31:03.936 INFO [stderr] 
Dec 17 16:31:03.940 INFO [stderr] warning: unused imports: `AssertUnwindSafe`, `catch_unwind`
Dec 17 16:31:03.940 INFO [stderr]   --> src/bin/playbot.rs:14:18
Dec 17 16:31:03.940 INFO [stderr]    |
Dec 17 16:31:03.941 INFO [stderr] 14 | use std::panic::{AssertUnwindSafe, catch_unwind};
Dec 17 16:31:03.941 INFO [stderr]    |                  ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^
Dec 17 16:31:03.941 INFO [stderr]    |
Dec 17 16:31:03.942 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 17 16:31:03.942 INFO [stderr] 
Dec 17 16:31:04.471 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.41s
Dec 17 16:31:06.387 INFO running `"docker" "inspect" "03ad6e2e3dfcaddc0ef1d2bfb7753f6a24d6a20d538c081a6bf25ecae41f3824"`
Dec 17 16:31:06.786 INFO running `"docker" "rm" "-f" "03ad6e2e3dfcaddc0ef1d2bfb7753f6a24d6a20d538c081a6bf25ecae41f3824"`
Dec 17 16:31:07.177 INFO [stdout] 03ad6e2e3dfcaddc0ef1d2bfb7753f6a24d6a20d538c081a6bf25ecae41f3824