[INFO] fetching crate codec-bitstream 0.1.0...
[INFO] checking codec-bitstream-0.1.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate codec-bitstream 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate codec-bitstream 0.1.0
[INFO] finished tweaking crates.io crate codec-bitstream 0.1.0
[INFO] tweaked toml for crates.io crate codec-bitstream 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate codec-bitstream 0.1.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding bitstream-io v2.6.0 (available: v4.3.0)
[INFO] [stderr]       Adding h264-reader v0.7.0 (available: v0.8.0)
[INFO] [stderr]       Adding matroska-demuxer v0.5.0 (available: v0.7.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c618a0f737adef0ad806e690a86b8acba26a85c8eec5a34ccc3b02ee296e4952
[INFO] running `Command { std: "docker" "start" "-a" "c618a0f737adef0ad806e690a86b8acba26a85c8eec5a34ccc3b02ee296e4952", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c618a0f737adef0ad806e690a86b8acba26a85c8eec5a34ccc3b02ee296e4952", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c618a0f737adef0ad806e690a86b8acba26a85c8eec5a34ccc3b02ee296e4952", kill_on_drop: false }`
[INFO] [stdout] c618a0f737adef0ad806e690a86b8acba26a85c8eec5a34ccc3b02ee296e4952
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be614d27288398a25d05557db96ac1491d8fb55b0d2b3fb43c830f24a5eeb889
[INFO] running `Command { std: "docker" "start" "-a" "be614d27288398a25d05557db96ac1491d8fb55b0d2b3fb43c830f24a5eeb889", kill_on_drop: false }`
[INFO] [stderr]     Checking four-cc v0.1.0
[INFO] [stderr]     Checking mpeg4-audio-const v0.2.0
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking bitstream-io v1.10.0
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking hex-slice v0.1.4
[INFO] [stderr]     Checking bitstream-io v2.6.0
[INFO] [stderr]     Checking matroska-demuxer v0.5.0
[INFO] [stderr]     Checking mp4ra-rust v0.1.0
[INFO] [stderr]     Checking rfc6381-codec v0.1.0
[INFO] [stderr]     Checking h264-reader v0.7.0
[INFO] [stderr]     Checking codec-bitstream v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/h264.rs:323:13
[INFO] [stdout]     |
[INFO] [stdout] 323 |         let mut matroska =
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/h264.rs:330:13
[INFO] [stdout]     |
[INFO] [stdout] 330 |         let mut matroska =
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nal_length_size`
[INFO] [stdout]    --> src/h264.rs:363:14
[INFO] [stdout]     |
[INFO] [stdout] 363 |         let (nal_length_size, sps_pps) =
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_nal_length_size`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.39s
[INFO] running `Command { std: "docker" "inspect" "be614d27288398a25d05557db96ac1491d8fb55b0d2b3fb43c830f24a5eeb889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be614d27288398a25d05557db96ac1491d8fb55b0d2b3fb43c830f24a5eeb889", kill_on_drop: false }`
[INFO] [stdout] be614d27288398a25d05557db96ac1491d8fb55b0d2b3fb43c830f24a5eeb889