[INFO] fetching crate bitbash-macros 0.5.1...
[INFO] checking bitbash-macros-0.5.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate bitbash-macros 0.5.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate bitbash-macros 0.5.1 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitbash-macros 0.5.1
[INFO] finished tweaking crates.io crate bitbash-macros 0.5.1
[INFO] tweaked toml for crates.io crate bitbash-macros 0.5.1 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb7b34f8f9169c844ea3309b4a11b86c63dad434a5dab6d4034cd7fd16f00444
[INFO] running `Command { std: "docker" "start" "-a" "cb7b34f8f9169c844ea3309b4a11b86c63dad434a5dab6d4034cd7fd16f00444", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb7b34f8f9169c844ea3309b4a11b86c63dad434a5dab6d4034cd7fd16f00444", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb7b34f8f9169c844ea3309b4a11b86c63dad434a5dab6d4034cd7fd16f00444", kill_on_drop: false }`
[INFO] [stdout] cb7b34f8f9169c844ea3309b4a11b86c63dad434a5dab6d4034cd7fd16f00444
[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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5c8c1779e175dd7159fba7e617275f938c075bec18ee869194d5106a8ab6eb4
[INFO] running `Command { std: "docker" "start" "-a" "d5c8c1779e175dd7159fba7e617275f938c075bec18ee869194d5106a8ab6eb4", kill_on_drop: false }`
[INFO] [stderr]     Checking syn v1.0.109
[INFO] [stderr]     Checking bitbash-macros v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `paren_token` and `semi_token` are never read
[INFO] [stdout]   --> src/bitfield/parse.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct New {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub paren_token: token::Paren,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 27 |     pub init_fields: Punctuated<Ident, Token![,]>,
[INFO] [stdout] 28 |     pub semi_token: Token![;],
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `New` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `semi_token` is never read
[INFO] [stdout]   --> src/bitfield/parse.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct DeriveDebug {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub semi_token: Token![;],
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DeriveDebug` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `field_token` and `colon_token` are never read
[INFO] [stdout]   --> src/bitfield/parse.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct Field {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub field_token: kw::field,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 43 |     pub name: Ident,
[INFO] [stdout] 44 |     pub colon_token: Token![:],
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Field` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `eq_token` and `semi_token` are never read
[INFO] [stdout]   --> src/bitfield/parse.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     Concatenation {
[INFO] [stdout]    |     ------------- fields in this variant
[INFO] [stdout] 52 |         eq_token: Token![=],
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 53 |         bits: Punctuated<Bits, Token![~]>,
[INFO] [stdout] 54 |         semi_token: Token![;],
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Composition` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `brace_token` is never read
[INFO] [stdout]   --> src/bitfield/parse.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     Mapping {
[INFO] [stdout]    |     ------- field in this variant
[INFO] [stdout] 57 |         brace_token: token::Brace,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Composition` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `arrow_token` is never read
[INFO] [stdout]   --> src/bitfield/parse.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub struct Relationship {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 64 |     pub from: Bits,
[INFO] [stdout] 65 |     pub arrow_token: Token![=>],
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Relationship` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `paren_token` and `semi_token` are never read
[INFO] [stdout]   --> src/bitfield/parse.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct New {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub paren_token: token::Paren,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 27 |     pub init_fields: Punctuated<Ident, Token![,]>,
[INFO] [stdout] 28 |     pub semi_token: Token![;],
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `New` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `semi_token` is never read
[INFO] [stdout]   --> src/bitfield/parse.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct DeriveDebug {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub semi_token: Token![;],
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DeriveDebug` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `field_token` and `colon_token` are never read
[INFO] [stdout]   --> src/bitfield/parse.rs:42:9
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct Field {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub field_token: kw::field,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 43 |     pub name: Ident,
[INFO] [stdout] 44 |     pub colon_token: Token![:],
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Field` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `eq_token` and `semi_token` are never read
[INFO] [stdout]   --> src/bitfield/parse.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 51 |     Concatenation {
[INFO] [stdout]    |     ------------- fields in this variant
[INFO] [stdout] 52 |         eq_token: Token![=],
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 53 |         bits: Punctuated<Bits, Token![~]>,
[INFO] [stdout] 54 |         semi_token: Token![;],
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Composition` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `brace_token` is never read
[INFO] [stdout]   --> src/bitfield/parse.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     Mapping {
[INFO] [stdout]    |     ------- field in this variant
[INFO] [stdout] 57 |         brace_token: token::Brace,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Composition` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `arrow_token` is never read
[INFO] [stdout]   --> src/bitfield/parse.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub struct Relationship {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 64 |     pub from: Bits,
[INFO] [stdout] 65 |     pub arrow_token: Token![=>],
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Relationship` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.69s
[INFO] running `Command { std: "docker" "inspect" "d5c8c1779e175dd7159fba7e617275f938c075bec18ee869194d5106a8ab6eb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5c8c1779e175dd7159fba7e617275f938c075bec18ee869194d5106a8ab6eb4", kill_on_drop: false }`
[INFO] [stdout] d5c8c1779e175dd7159fba7e617275f938c075bec18ee869194d5106a8ab6eb4