[INFO] fetching crate symphonia-format-mkv 0.5.4...
[INFO] checking symphonia-format-mkv-0.5.4 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate symphonia-format-mkv 0.5.4 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate symphonia-format-mkv 0.5.4
[INFO] finished tweaking crates.io crate symphonia-format-mkv 0.5.4
[INFO] tweaked toml for crates.io crate symphonia-format-mkv 0.5.4 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate symphonia-format-mkv 0.5.4 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 10 packages to latest compatible versions
[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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 605cc5c6ce402758cae360998dc959c517ff307738d1ae048578b6b6f7114ba8
[INFO] running `Command { std: "docker" "start" "-a" "605cc5c6ce402758cae360998dc959c517ff307738d1ae048578b6b6f7114ba8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "605cc5c6ce402758cae360998dc959c517ff307738d1ae048578b6b6f7114ba8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "605cc5c6ce402758cae360998dc959c517ff307738d1ae048578b6b6f7114ba8", kill_on_drop: false }`
[INFO] [stdout] 605cc5c6ce402758cae360998dc959c517ff307738d1ae048578b6b6f7114ba8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 11d6b3aba81cd092b72b18b076859a9413fc72918cb972bc89db4f455890671d
[INFO] running `Command { std: "docker" "start" "-a" "11d6b3aba81cd092b72b18b076859a9413fc72918cb972bc89db4f455890671d", kill_on_drop: false }`
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]     Checking bytemuck v1.23.1
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking encoding_rs v0.8.35
[INFO] [stderr]     Checking symphonia-core v0.5.4
[INFO] [stderr]     Checking symphonia-metadata v0.5.4
[INFO] [stderr]     Checking symphonia-utils-xiph v0.5.4
[INFO] [stderr]     Checking symphonia-format-mkv v0.5.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/ebml.rs:518:15
[INFO] [stdout]     |
[INFO] [stdout] 518 |     SignedInt(i64),
[INFO] [stdout]     |     --------- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ElementData` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 518 -     SignedInt(i64),
[INFO] [stdout] 518 +     SignedInt(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/ebml.rs:526:10
[INFO] [stdout]     |
[INFO] [stdout] 526 |     Date(i64),
[INFO] [stdout]     |     ---- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ElementData` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 526 -     Date(i64),
[INFO] [stdout] 526 +     Date(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/ebml.rs:518:15
[INFO] [stdout]     |
[INFO] [stdout] 518 |     SignedInt(i64),
[INFO] [stdout]     |     --------- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ElementData` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 518 -     SignedInt(i64),
[INFO] [stdout] 518 +     SignedInt(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/ebml.rs:526:10
[INFO] [stdout]     |
[INFO] [stdout] 526 |     Date(i64),
[INFO] [stdout]     |     ---- ^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ElementData` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 526 -     Date(i64),
[INFO] [stdout] 526 +     Date(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "11d6b3aba81cd092b72b18b076859a9413fc72918cb972bc89db4f455890671d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11d6b3aba81cd092b72b18b076859a9413fc72918cb972bc89db4f455890671d", kill_on_drop: false }`
[INFO] [stdout] 11d6b3aba81cd092b72b18b076859a9413fc72918cb972bc89db4f455890671d