[INFO] fetching crate less-avc 0.1.5...
[INFO] checking less-avc-0.1.5 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate less-avc 0.1.5 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate less-avc 0.1.5
[INFO] finished tweaking crates.io crate less-avc 0.1.5
[INFO] tweaked toml for crates.io crate less-avc 0.1.5 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate less-avc 0.1.5 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] [stderr]       Adding h264-reader v0.7.0 (available: v0.8.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6be7f64ab3f2d5ec85f033f8ee53c34fadc94f902617a7658c72c142ae02e062
[INFO] running `Command { std: "docker" "start" "-a" "6be7f64ab3f2d5ec85f033f8ee53c34fadc94f902617a7658c72c142ae02e062", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6be7f64ab3f2d5ec85f033f8ee53c34fadc94f902617a7658c72c142ae02e062", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6be7f64ab3f2d5ec85f033f8ee53c34fadc94f902617a7658c72c142ae02e062", kill_on_drop: false }`
[INFO] [stdout] 6be7f64ab3f2d5ec85f033f8ee53c34fadc94f902617a7658c72c142ae02e062
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 781c716b12ad6a48d4c5ccfccf267d3ec34d9ef6fc7e61f541caa6201c384bd4
[INFO] running `Command { std: "docker" "start" "-a" "781c716b12ad6a48d4c5ccfccf267d3ec34d9ef6fc7e61f541caa6201c384bd4", kill_on_drop: false }`
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking four-cc v0.1.0
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking mpeg4-audio-const v0.2.0
[INFO] [stderr]     Checking bitstream-io v1.10.0
[INFO] [stderr]     Checking hex-slice v0.1.4
[INFO] [stderr]     Checking log v0.4.28
[INFO] [stderr]     Checking wyz v0.5.1
[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 bitvec v1.0.1
[INFO] [stderr]     Checking less-avc v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<u32, Infallible>
[INFO] [stdout]    --> src/lib.rs:329:38
[INFO] [stdout]     |
[INFO] [stdout] 329 |                 bv.extend_exp_golomb(bit_depth_luma_minus8.try_into().unwrap());
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<u32, Infallible>
[INFO] [stdout]    --> src/lib.rs:330:38
[INFO] [stdout]     |
[INFO] [stdout] 330 |                 bv.extend_exp_golomb(bit_depth_chroma_minus8.try_into().unwrap());
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `less-avc` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<u32, Infallible>
[INFO] [stdout]    --> src/lib.rs:329:38
[INFO] [stdout]     |
[INFO] [stdout] 329 |                 bv.extend_exp_golomb(bit_depth_luma_minus8.try_into().unwrap());
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<u32, Infallible>
[INFO] [stdout]    --> src/lib.rs:330:38
[INFO] [stdout]     |
[INFO] [stdout] 330 |                 bv.extend_exp_golomb(bit_depth_chroma_minus8.try_into().unwrap());
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `less-avc` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "781c716b12ad6a48d4c5ccfccf267d3ec34d9ef6fc7e61f541caa6201c384bd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "781c716b12ad6a48d4c5ccfccf267d3ec34d9ef6fc7e61f541caa6201c384bd4", kill_on_drop: false }`
[INFO] [stdout] 781c716b12ad6a48d4c5ccfccf267d3ec34d9ef6fc7e61f541caa6201c384bd4