[INFO] crate h2 0.1.18 is already in cache
[INFO] extracting crate h2 0.1.18 into work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/reg/h2/0.1.18
[INFO] extracting crate h2 0.1.18 into work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/reg/h2/0.1.18
[INFO] validating manifest of h2-0.1.18 on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of h2-0.1.18 on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing h2-0.1.18
[INFO] finished frobbing h2-0.1.18
[INFO] frobbed toml for h2-0.1.18 written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/reg/h2/0.1.18/Cargo.toml
[INFO] started frobbing h2-0.1.18
[INFO] finished frobbing h2-0.1.18
[INFO] frobbed toml for h2-0.1.18 written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/reg/h2/0.1.18/Cargo.toml
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking h2-0.1.18 against try#58b21121d0b447ceb3f1a655155d802191acf044 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-1/try#58b21121d0b447ceb3f1a655155d802191acf044:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/reg/h2/0.1.18:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 6cbbaec085a3bfc9ec403320375c5d9329b4213bc3a24aea5f84e660891f2377
[INFO] running `"docker" "start" "-a" "6cbbaec085a3bfc9ec403320375c5d9329b4213bc3a24aea5f84e660891f2377"`
[INFO] [stderr]     Checking quickcheck v0.4.1
[INFO] [stderr]     Checking webpki-roots v0.14.0
[INFO] [stderr]     Checking h2 v0.1.18 (/opt/crater/workdir)
[INFO] [stderr] warning: the item `header` is imported redundantly
[INFO] [stderr]    --> src/hpack/decoder.rs:575:9
[INFO] [stderr]     |
[INFO] [stderr] 5   | use http::header;
[INFO] [stderr]     |     ------------ the item `header` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 575 |     use http::header;
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: the item `HeaderName` is imported redundantly
[INFO] [stderr]    --> src/hpack/encoder.rs:825:28
[INFO] [stderr]     |
[INFO] [stderr] 409 |     use super::*;
[INFO] [stderr]     |         -------- the item `HeaderName` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 825 |         use http::header::{HeaderName, HeaderValue};
[INFO] [stderr]     |                            ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:89:24
[INFO] [stderr]     |
[INFO] [stderr] 89  | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]     |                        ^^^^^^^^
[INFO] [stderr]     = note: #[deny(unused_imports)] implied by #[deny(warnings)]
[INFO] [stderr] 
[INFO] [stderr] error: the item `HeaderValue` is imported redundantly
[INFO] [stderr]    --> src/hpack/encoder.rs:825:40
[INFO] [stderr]     |
[INFO] [stderr] 409 |     use super::*;
[INFO] [stderr]     |         -------- the item `HeaderValue` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 825 |         use http::header::{HeaderName, HeaderValue};
[INFO] [stderr]     |                                        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: the item `header` is imported redundantly
[INFO] [stderr]    --> src/hpack/decoder.rs:575:9
[INFO] [stderr]     |
[INFO] [stderr] 5   | use http::header;
[INFO] [stderr]     |     ------------ the item `header` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 575 |     use http::header;
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `h2`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "6cbbaec085a3bfc9ec403320375c5d9329b4213bc3a24aea5f84e660891f2377"`
[INFO] running `"docker" "rm" "-f" "6cbbaec085a3bfc9ec403320375c5d9329b4213bc3a24aea5f84e660891f2377"`
[INFO] [stdout] 6cbbaec085a3bfc9ec403320375c5d9329b4213bc3a24aea5f84e660891f2377