Dec 17 11:22:44.890 INFO checking yodang/http2c against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 11:22:44.891 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/yodang/http2c:/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 11:22:45.508 INFO [stdout] 77950094b394b64906b2028988e7ad5058522869701e7812521f14e22cdb2e59
Dec 17 11:22:45.510 INFO running `"docker" "start" "-a" "77950094b394b64906b2028988e7ad5058522869701e7812521f14e22cdb2e59"`
Dec 17 11:22:46.998 INFO [stderr]     Checking libc v0.2.36
Dec 17 11:22:46.998 INFO [stderr]     Checking futures v0.1.17
Dec 17 11:22:48.472 INFO [stderr]     Checking iovec v0.1.1
Dec 17 11:22:48.472 INFO [stderr]     Checking net2 v0.2.31
Dec 17 11:22:48.472 INFO [stderr]     Checking rand v0.3.20
Dec 17 11:22:48.472 INFO [stderr]     Checking num_cpus v1.8.0
Dec 17 11:22:48.472 INFO [stderr]     Checking time v0.1.39
Dec 17 11:22:49.440 INFO [stderr]     Checking bytes v0.4.6
Dec 17 11:22:50.449 INFO [stderr]     Checking mio v0.6.12
Dec 17 11:22:54.747 INFO [stderr]     Checking tokio-io v0.1.4
Dec 17 11:22:54.749 INFO [stderr]     Checking tokio-service v0.1.0
Dec 17 11:22:54.764 INFO [stderr]     Checking futures-cpupool v0.1.8
Dec 17 11:22:54.766 INFO [stderr]     Checking relay v0.1.0
Dec 17 11:22:56.158 INFO [stderr]     Checking tokio-core v0.1.12
Dec 17 11:22:57.268 INFO [stderr]     Checking tokio-proto v0.1.1
Dec 17 11:22:59.369 INFO [stderr]     Checking hyper v0.11.15
Dec 17 11:23:04.300 INFO [stderr]     Checking http2c v0.1.0 (/opt/crater/workdir)
Dec 17 11:23:04.552 INFO [stderr] warning: unused import: `bytes::Bytes`
Dec 17 11:23:04.552 INFO [stderr]   --> src/main.rs:10:5
Dec 17 11:23:04.552 INFO [stderr]    |
Dec 17 11:23:04.552 INFO [stderr] 10 | use bytes::Bytes;
Dec 17 11:23:04.552 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 17 11:23:04.552 INFO [stderr]    |
Dec 17 11:23:04.552 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 17 11:23:04.552 INFO [stderr] 
Dec 17 11:23:04.552 INFO [stderr] warning: unused imports: `Write`, `self`
Dec 17 11:23:04.552 INFO [stderr]   --> src/main.rs:12:15
Dec 17 11:23:04.552 INFO [stderr]    |
Dec 17 11:23:04.552 INFO [stderr] 12 | use std::io::{self, Write};
Dec 17 11:23:04.552 INFO [stderr]    |               ^^^^  ^^^^^
Dec 17 11:23:04.552 INFO [stderr] 
Dec 17 11:23:04.552 INFO [stderr] warning: unused import: `Header`
Dec 17 11:23:04.552 INFO [stderr]   --> src/main.rs:14:21
Dec 17 11:23:04.552 INFO [stderr]    |
Dec 17 11:23:04.552 INFO [stderr] 14 | use hyper::header::{Header, Protocol, ProtocolName};
Dec 17 11:23:04.552 INFO [stderr]    |                     ^^^^^^
Dec 17 11:23:04.552 INFO [stderr] 
Dec 17 11:23:04.588 INFO [stderr] warning: unused import: `bytes::Bytes`
Dec 17 11:23:04.588 INFO [stderr]   --> src/main.rs:10:5
Dec 17 11:23:04.588 INFO [stderr]    |
Dec 17 11:23:04.588 INFO [stderr] 10 | use bytes::Bytes;
Dec 17 11:23:04.588 INFO [stderr]    |     ^^^^^^^^^^^^
Dec 17 11:23:04.588 INFO [stderr]    |
Dec 17 11:23:04.588 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 17 11:23:04.588 INFO [stderr] 
Dec 17 11:23:04.588 INFO [stderr] warning: unused imports: `Write`, `self`
Dec 17 11:23:04.588 INFO [stderr]   --> src/main.rs:12:15
Dec 17 11:23:04.588 INFO [stderr]    |
Dec 17 11:23:04.588 INFO [stderr] 12 | use std::io::{self, Write};
Dec 17 11:23:04.588 INFO [stderr]    |               ^^^^  ^^^^^
Dec 17 11:23:04.588 INFO [stderr] 
Dec 17 11:23:04.588 INFO [stderr] warning: unused import: `Header`
Dec 17 11:23:04.588 INFO [stderr]   --> src/main.rs:14:21
Dec 17 11:23:04.588 INFO [stderr]    |
Dec 17 11:23:04.588 INFO [stderr] 14 | use hyper::header::{Header, Protocol, ProtocolName};
Dec 17 11:23:04.588 INFO [stderr]    |                     ^^^^^^
Dec 17 11:23:04.588 INFO [stderr] 
Dec 17 11:23:04.726 INFO [stderr] warning: enum is never used: `FrameType`
Dec 17 11:23:04.726 INFO [stderr]  --> src/frame.rs:2:1
Dec 17 11:23:04.726 INFO [stderr]   |
Dec 17 11:23:04.726 INFO [stderr] 2 | pub enum FrameType
Dec 17 11:23:04.726 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 17 11:23:04.726 INFO [stderr]   |
Dec 17 11:23:04.726 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 11:23:04.726 INFO [stderr] 
Dec 17 11:23:04.736 INFO [stderr] warning: struct is never constructed: `Http2Frame`
Dec 17 11:23:04.736 INFO [stderr]   --> src/frame.rs:17:1
Dec 17 11:23:04.736 INFO [stderr]    |
Dec 17 11:23:04.736 INFO [stderr] 17 | pub struct Http2Frame
Dec 17 11:23:04.736 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:04.736 INFO [stderr] 
Dec 17 11:23:04.737 INFO [stderr] warning: enum is never used: `FrameType`
Dec 17 11:23:04.737 INFO [stderr]  --> src/frame.rs:2:1
Dec 17 11:23:04.737 INFO [stderr]   |
Dec 17 11:23:04.737 INFO [stderr] 2 | pub enum FrameType
Dec 17 11:23:04.737 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 17 11:23:04.737 INFO [stderr]   |
Dec 17 11:23:04.737 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 11:23:04.737 INFO [stderr] 
Dec 17 11:23:04.737 INFO [stderr] warning: struct is never constructed: `Http2Frame`
Dec 17 11:23:04.737 INFO [stderr]   --> src/frame.rs:17:1
Dec 17 11:23:04.737 INFO [stderr]    |
Dec 17 11:23:04.737 INFO [stderr] 17 | pub struct Http2Frame
Dec 17 11:23:04.737 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
Dec 17 11:23:04.737 INFO [stderr] 
Dec 17 11:23:04.750 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:04.750 INFO [stderr]   --> src/main.rs:48:5
Dec 17 11:23:04.750 INFO [stderr]    |
Dec 17 11:23:04.750 INFO [stderr] 48 |     core.run(worker);
Dec 17 11:23:04.750 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 17 11:23:04.750 INFO [stderr]    |
Dec 17 11:23:04.750 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 11:23:04.750 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:04.750 INFO [stderr] 
Dec 17 11:23:04.758 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 11:23:04.758 INFO [stderr]   --> src/main.rs:48:5
Dec 17 11:23:04.758 INFO [stderr]    |
Dec 17 11:23:04.758 INFO [stderr] 48 |     core.run(worker);
Dec 17 11:23:04.758 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 17 11:23:04.758 INFO [stderr]    |
Dec 17 11:23:04.768 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 11:23:04.768 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 11:23:04.768 INFO [stderr] 
Dec 17 11:23:04.815 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.98s
Dec 17 11:23:05.808 INFO running `"docker" "inspect" "77950094b394b64906b2028988e7ad5058522869701e7812521f14e22cdb2e59"`
Dec 17 11:23:06.198 INFO running `"docker" "rm" "-f" "77950094b394b64906b2028988e7ad5058522869701e7812521f14e22cdb2e59"`
Dec 17 11:23:06.539 INFO [stdout] 77950094b394b64906b2028988e7ad5058522869701e7812521f14e22cdb2e59