[INFO] fetching crate sp-multihash-derive 0.2.0...
[INFO] checking sp-multihash-derive-0.2.0 against master#5ad98b4026d5172f27615b105658bc8bfd677be8 for pr-129422
[INFO] extracting crate sp-multihash-derive 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate sp-multihash-derive 0.2.0 on toolchain 5ad98b4026d5172f27615b105658bc8bfd677be8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sp-multihash-derive 0.2.0
[INFO] finished tweaking crates.io crate sp-multihash-derive 0.2.0
[INFO] tweaked toml for crates.io crate sp-multihash-derive 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 27 packages to latest compatible versions
[INFO] [stderr]       Adding ctor v0.1.26 (latest: v0.2.8)
[INFO] [stderr]       Adding pretty_assertions v0.7.2 (latest: v1.4.0)
[INFO] [stderr]       Adding proc-macro-crate v1.3.1 (latest: v3.2.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] [stderr]       Adding synstructure v0.12.6 (latest: v0.13.1)
[INFO] [stderr]       Adding toml_edit v0.19.15 (latest: v0.22.20)
[INFO] [stderr]       Adding winnow v0.5.40 (latest: v0.6.18)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf3edc7bd46baa78cd517da5456fe1b6e0be4c49d6aec1ce51d472cc2cb66576
[INFO] running `Command { std: "docker" "start" "-a" "cf3edc7bd46baa78cd517da5456fe1b6e0be4c49d6aec1ce51d472cc2cb66576", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf3edc7bd46baa78cd517da5456fe1b6e0be4c49d6aec1ce51d472cc2cb66576", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf3edc7bd46baa78cd517da5456fe1b6e0be4c49d6aec1ce51d472cc2cb66576", kill_on_drop: false }`
[INFO] [stdout] cf3edc7bd46baa78cd517da5456fe1b6e0be4c49d6aec1ce51d472cc2cb66576
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60dc7df126aca936add671a9fc377b7c5792c074b90f8e8adfc06bd8b27039a1
[INFO] running `Command { std: "docker" "start" "-a" "60dc7df126aca936add671a9fc377b7c5792c074b90f8e8adfc06bd8b27039a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking winnow v0.5.40
[INFO] [stderr]     Checking toml_datetime v0.6.8
[INFO] [stderr]     Checking unicode-xid v0.2.5
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking pretty_assertions v0.7.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking indexmap v2.5.0
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]     Checking toml_edit v0.19.15
[INFO] [stderr]     Checking proc-macro-crate v1.3.1
[INFO] [stderr]     Checking synstructure v0.12.6
[INFO] [stderr]     Checking sp-multihash-derive v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/multihash.rs:60:21
[INFO] [stdout]    |
[INFO] [stdout] 60 |   NoAllocSizeErrors(kw::no_alloc_size_errors),
[INFO] [stdout]    |   ----------------- ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DeriveAttr` has a derived impl for the trait `Debug`, but this is 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] 60 |   NoAllocSizeErrors(()),
[INFO] [stdout]    |                     ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/multihash.rs:60:21
[INFO] [stdout]    |
[INFO] [stdout] 60 |   NoAllocSizeErrors(kw::no_alloc_size_errors),
[INFO] [stdout]    |   ----------------- ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DeriveAttr` has a derived impl for the trait `Debug`, but this is 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] 60 |   NoAllocSizeErrors(()),
[INFO] [stdout]    |                     ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `paren` is never read
[INFO] [stdout]   --> src/utils.rs:27:7
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Attrs<A> {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 27 |   pub paren: syn::token::Paren,
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Attrs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/multihash.rs:244:19
[INFO] [stdout]     |
[INFO] [stdout] 244 | struct ParseError(Span);
[INFO] [stdout]     |        ---------- ^^^^
[INFO] [stdout]     |        |
[INFO] [stdout]     |        field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `paren` is never read
[INFO] [stdout]   --> src/utils.rs:27:7
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Attrs<A> {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 27 |   pub paren: syn::token::Paren,
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Attrs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key` and `eq` are never read
[INFO] [stdout]   --> src/utils.rs:42:7
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub struct Attr<K, V> {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 42 |   pub key: K,
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 43 |   pub eq: syn::token::Eq,
[INFO] [stdout]    |       ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Attr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key` and `eq` are never read
[INFO] [stdout]   --> src/utils.rs:42:7
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub struct Attr<K, V> {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 42 |   pub key: K,
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 43 |   pub eq: syn::token::Eq,
[INFO] [stdout]    |       ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Attr` 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 5.18s
[INFO] running `Command { std: "docker" "inspect" "60dc7df126aca936add671a9fc377b7c5792c074b90f8e8adfc06bd8b27039a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60dc7df126aca936add671a9fc377b7c5792c074b90f8e8adfc06bd8b27039a1", kill_on_drop: false }`
[INFO] [stdout] 60dc7df126aca936add671a9fc377b7c5792c074b90f8e8adfc06bd8b27039a1