[INFO] fetching crate mlcg 0.0.1...
[INFO] checking mlcg-0.0.1 against try#de0e80659cee4f27282e60d63bbb8c5271a0d147 for pr-129392
[INFO] extracting crate mlcg 0.0.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate mlcg 0.0.1 on toolchain de0e80659cee4f27282e60d63bbb8c5271a0d147
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mlcg 0.0.1
[INFO] finished tweaking crates.io crate mlcg 0.0.1
[INFO] tweaked toml for crates.io crate mlcg 0.0.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a14a1c67548326f752ac5c4c8a420ecb10193c6e4c3a7060c9bf7a53bbd2f094
[INFO] running `Command { std: "docker" "start" "-a" "a14a1c67548326f752ac5c4c8a420ecb10193c6e4c3a7060c9bf7a53bbd2f094", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a14a1c67548326f752ac5c4c8a420ecb10193c6e4c3a7060c9bf7a53bbd2f094", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a14a1c67548326f752ac5c4c8a420ecb10193c6e4c3a7060c9bf7a53bbd2f094", kill_on_drop: false }`
[INFO] [stdout] a14a1c67548326f752ac5c4c8a420ecb10193c6e4c3a7060c9bf7a53bbd2f094
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb1f224a85dbf29fa29cd6ead7cd072ebffb0ae36fd8a01aa902c6fd3ee31d9f
[INFO] running `Command { std: "docker" "start" "-a" "bb1f224a85dbf29fa29cd6ead7cd072ebffb0ae36fd8a01aa902c6fd3ee31d9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.209
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling serde_json v1.0.127
[INFO] [stderr]    Compiling mlcg-derive v0.0.1
[INFO] [stderr]     Checking mlcg v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `appends` is never read
[INFO] [stdout]    --> src/processor.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub(crate) struct RawProcessor {
[INFO] [stdout]     |                   ------------ field in this struct
[INFO] [stdout] 134 |     pub main: Block,
[INFO] [stdout] 135 |     pub appends: Vec<Block>,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RawProcessor` has derived impls for the traits `Default` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `appends` is never read
[INFO] [stdout]    --> src/processor.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub(crate) struct RawProcessor {
[INFO] [stdout]     |                   ------------ field in this struct
[INFO] [stdout] 134 |     pub main: Block,
[INFO] [stdout] 135 |     pub appends: Vec<Block>,
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RawProcessor` has derived impls for the traits `Default` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.19s
[INFO] running `Command { std: "docker" "inspect" "bb1f224a85dbf29fa29cd6ead7cd072ebffb0ae36fd8a01aa902c6fd3ee31d9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb1f224a85dbf29fa29cd6ead7cd072ebffb0ae36fd8a01aa902c6fd3ee31d9f", kill_on_drop: false }`
[INFO] [stdout] bb1f224a85dbf29fa29cd6ead7cd072ebffb0ae36fd8a01aa902c6fd3ee31d9f