[INFO] fetching crate assembly-core 0.3.1...
[INFO] checking assembly-core-0.3.1 against master#b286722878e18db29a7fbe672be7c4d3b02e8e4d for pr-127655
[INFO] extracting crate assembly-core 0.3.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate assembly-core 0.3.1 on toolchain b286722878e18db29a7fbe672be7c4d3b02e8e4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate assembly-core 0.3.1
[INFO] finished tweaking crates.io crate assembly-core 0.3.1
[INFO] tweaked toml for crates.io crate assembly-core 0.3.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "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 displaydoc v0.1.7 (latest: v0.2.5)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.71)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded displaydoc v0.1.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 606f98f107f1955ce66be1a3de1b76adac437e101d7f76579a122d5688dc59b8
[INFO] running `Command { std: "docker" "start" "-a" "606f98f107f1955ce66be1a3de1b76adac437e101d7f76579a122d5688dc59b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "606f98f107f1955ce66be1a3de1b76adac437e101d7f76579a122d5688dc59b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "606f98f107f1955ce66be1a3de1b76adac437e101d7f76579a122d5688dc59b8", kill_on_drop: false }`
[INFO] [stdout] 606f98f107f1955ce66be1a3de1b76adac437e101d7f76579a122d5688dc59b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12fb80b714a2bb71e5428cbe58f990e9e52010614f3e31f83340c52f93a19b50
[INFO] running `Command { std: "docker" "start" "-a" "12fb80b714a2bb71e5428cbe58f990e9e52010614f3e31f83340c52f93a19b50", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling displaydoc v0.1.7
[INFO] [stderr]     Checking assembly-core v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `LEU32` is never constructed
[INFO] [stdout]    --> src/buffer.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 | pub struct LEU32([u8; 4]);
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LEI64` is never constructed
[INFO] [stdout]    --> src/buffer.rs:139:12
[INFO] [stdout]     |
[INFO] [stdout] 139 | pub struct LEI64([u8; 8]);
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/ldf.rs:76:21
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub struct LDFError(u8, String);
[INFO] [stdout]    |            -------- ^^  ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing these fields
[INFO] [stdout]    = note: `LDFError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LEU16` is never constructed
[INFO] [stdout]    --> src/buffer.rs:130:12
[INFO] [stdout]     |
[INFO] [stdout] 130 | pub struct LEU16([u8; 2]);
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LEU32` is never constructed
[INFO] [stdout]    --> src/buffer.rs:135:12
[INFO] [stdout]     |
[INFO] [stdout] 135 | pub struct LEU32([u8; 4]);
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LEI64` is never constructed
[INFO] [stdout]    --> src/buffer.rs:139:12
[INFO] [stdout]     |
[INFO] [stdout] 139 | pub struct LEI64([u8; 8]);
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/ldf.rs:76:21
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub struct LDFError(u8, String);
[INFO] [stdout]    |            -------- ^^  ^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            fields in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing these fields
[INFO] [stdout]    = note: `LDFError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.68s
[INFO] running `Command { std: "docker" "inspect" "12fb80b714a2bb71e5428cbe58f990e9e52010614f3e31f83340c52f93a19b50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12fb80b714a2bb71e5428cbe58f990e9e52010614f3e31f83340c52f93a19b50", kill_on_drop: false }`
[INFO] [stdout] 12fb80b714a2bb71e5428cbe58f990e9e52010614f3e31f83340c52f93a19b50
