[INFO] fetching crate maple-core-macro 0.4.3...
[INFO] checking maple-core-macro-0.4.3 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate maple-core-macro 0.4.3 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate maple-core-macro 0.4.3 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 maple-core-macro 0.4.3
[INFO] finished tweaking crates.io crate maple-core-macro 0.4.3
[INFO] tweaked toml for crates.io crate maple-core-macro 0.4.3 written to /workspace/builds/worker-2-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]     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 34 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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 41a4647e0ff56913fbacc57491e4b25794d1c78c21fe6e8b10473bde3e45cbdf
[INFO] running `Command { std: "docker" "start" "-a" "41a4647e0ff56913fbacc57491e4b25794d1c78c21fe6e8b10473bde3e45cbdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41a4647e0ff56913fbacc57491e4b25794d1c78c21fe6e8b10473bde3e45cbdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41a4647e0ff56913fbacc57491e4b25794d1c78c21fe6e8b10473bde3e45cbdf", kill_on_drop: false }`
[INFO] [stdout] 41a4647e0ff56913fbacc57491e4b25794d1c78c21fe6e8b10473bde3e45cbdf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] abe8b7b7d598d456b6e0e2870ad7c36f80998247f08a4bb3a375ad05985d563f
[INFO] running `Command { std: "docker" "start" "-a" "abe8b7b7d598d456b6e0e2870ad7c36f80998247f08a4bb3a375ad05985d563f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling serde v1.0.209
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]     Checking winnow v0.6.18
[INFO] [stderr]    Compiling trybuild v1.0.99
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking maple-core-macro v0.4.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `equals_token` is never read
[INFO] [stdout]   --> src/attributes.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub struct Attribute {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 46 |     pub ty: AttributeType,
[INFO] [stdout] 47 |     pub equals_token: Token![=],
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `paren_token` is never read
[INFO] [stdout]   --> src/attributes.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub struct AttributeList {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 62 |     pub paren_token: Paren,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `brace_token` is never read
[INFO] [stdout]  --> src/children.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) struct Children {
[INFO] [stdout]   |                   -------- field in this struct
[INFO] [stdout] 7 |     pub brace_token: token::Brace,
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/text.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Splice(Paren, Box<Expr>),
[INFO] [stdout]   |     ------ ^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[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] 9 |     Splice((), Box<Expr>),
[INFO] [stdout]   |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde_spanned v0.6.7
[INFO] [stderr]     Checking toml_datetime v0.6.8
[INFO] [stderr]     Checking serde_json v1.0.127
[INFO] [stderr]    Compiling serde_derive v1.0.209
[INFO] [stderr]     Checking toml_edit v0.22.20
[INFO] [stdout] warning: field `equals_token` is never read
[INFO] [stdout]   --> src/attributes.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub struct Attribute {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 46 |     pub ty: AttributeType,
[INFO] [stdout] 47 |     pub equals_token: Token![=],
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `paren_token` is never read
[INFO] [stdout]   --> src/attributes.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub struct AttributeList {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 62 |     pub paren_token: Paren,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `brace_token` is never read
[INFO] [stdout]  --> src/children.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) struct Children {
[INFO] [stdout]   |                   -------- field in this struct
[INFO] [stdout] 7 |     pub brace_token: token::Brace,
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/text.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Splice(Paren, Box<Expr>),
[INFO] [stdout]   |     ------ ^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[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] 9 |     Splice((), Box<Expr>),
[INFO] [stdout]   |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking toml v0.8.19
[INFO] [stdout] warning: field `equals_token` is never read
[INFO] [stdout]   --> src/attributes.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub struct Attribute {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 46 |     pub ty: AttributeType,
[INFO] [stdout] 47 |     pub equals_token: Token![=],
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `paren_token` is never read
[INFO] [stdout]   --> src/attributes.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub struct AttributeList {
[INFO] [stdout]    |            ------------- field in this struct
[INFO] [stdout] 62 |     pub paren_token: Paren,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `brace_token` is never read
[INFO] [stdout]  --> src/children.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) struct Children {
[INFO] [stdout]   |                   -------- field in this struct
[INFO] [stdout] 7 |     pub brace_token: token::Brace,
[INFO] [stdout]   |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/text.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 |     Splice(Paren, Box<Expr>),
[INFO] [stdout]   |     ------ ^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[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] 9 |     Splice((), Box<Expr>),
[INFO] [stdout]   |            ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.73s
[INFO] running `Command { std: "docker" "inspect" "abe8b7b7d598d456b6e0e2870ad7c36f80998247f08a4bb3a375ad05985d563f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abe8b7b7d598d456b6e0e2870ad7c36f80998247f08a4bb3a375ad05985d563f", kill_on_drop: false }`
[INFO] [stdout] abe8b7b7d598d456b6e0e2870ad7c36f80998247f08a4bb3a375ad05985d563f