[INFO] crate hpack 0.3.0 is already in cache
[INFO] extracting crate hpack 0.3.0 into work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/hpack/0.3.0
[INFO] extracting crate hpack 0.3.0 into work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/hpack/0.3.0
[INFO] validating manifest of hpack-0.3.0 on toolchain master#d99a320cba42f661aebfa1293b7b2ec3603dda75
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of hpack-0.3.0 on toolchain try#e70472fc501b855c9080f3772432c10fe20b8866
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing hpack-0.3.0
[INFO] finished frobbing hpack-0.3.0
[INFO] frobbed toml for hpack-0.3.0 written to work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/hpack/0.3.0/Cargo.toml
[INFO] started frobbing hpack-0.3.0
[INFO] finished frobbing hpack-0.3.0
[INFO] frobbed toml for hpack-0.3.0 written to work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/reg/hpack/0.3.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking hpack-0.3.0 against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/reg/hpack/0.3.0:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 293a51c9277d092b42dfde3b73dcac09bea1e2ef2b67341dc3b8ba02406a1d40
[INFO] running `"docker" "start" "-a" "293a51c9277d092b42dfde3b73dcac09bea1e2ef2b67341dc3b8ba02406a1d40"`
[INFO] [stderr]     Checking hpack v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `get_max_table_size`
[INFO] [stderr]    --> src/lib.rs:127:5
[INFO] [stderr]     |
[INFO] [stderr] 127 |     fn get_max_table_size(&self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `to_vec`
[INFO] [stderr]    --> src/lib.rs:180:5
[INFO] [stderr]     |
[INFO] [stderr] 180 |     fn to_vec(&self) -> Vec<(Vec<u8>, Vec<u8>)> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.44s
[INFO] running `"docker" "inspect" "293a51c9277d092b42dfde3b73dcac09bea1e2ef2b67341dc3b8ba02406a1d40"`
[INFO] running `"docker" "rm" "-f" "293a51c9277d092b42dfde3b73dcac09bea1e2ef2b67341dc3b8ba02406a1d40"`
[INFO] [stdout] 293a51c9277d092b42dfde3b73dcac09bea1e2ef2b67341dc3b8ba02406a1d40