[INFO] fetching crate pear_codegen 0.2.9...
[INFO] checking pear_codegen-0.2.9 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate pear_codegen 0.2.9 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate pear_codegen 0.2.9
[INFO] finished tweaking crates.io crate pear_codegen 0.2.9
[INFO] tweaked toml for crates.io crate pear_codegen 0.2.9 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate pear_codegen 0.2.9 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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 7 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee875d008d687a770a331ae9938383b8ee0e8a793e75edb1ab0a81892de6982b
[INFO] running `Command { std: "docker" "start" "-a" "ee875d008d687a770a331ae9938383b8ee0e8a793e75edb1ab0a81892de6982b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee875d008d687a770a331ae9938383b8ee0e8a793e75edb1ab0a81892de6982b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee875d008d687a770a331ae9938383b8ee0e8a793e75edb1ab0a81892de6982b", kill_on_drop: false }`
[INFO] [stdout] ee875d008d687a770a331ae9938383b8ee0e8a793e75edb1ab0a81892de6982b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d99a5176764cea429030ae7bf4b4da9a382710bc284c29eef543c22bfd98fc9
[INFO] running `Command { std: "docker" "start" "-a" "5d99a5176764cea429030ae7bf4b4da9a382710bc284c29eef543c22bfd98fc9", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.10.1
[INFO] [stderr]     Checking syn v2.0.104
[INFO] [stderr]     Checking yansi v1.0.1
[INFO] [stderr]     Checking pear_codegen v0.2.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/parser.rs:82:10
[INFO] [stdout]    |
[INFO] [stdout] 82 |     Wild(Token![_]),
[INFO] [stdout]    |     ---- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Pattern` 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] 82 -     Wild(Token![_]),
[INFO] [stdout] 82 +     Wild(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `info` and `marker` are never read
[INFO] [stdout]    --> src/parser.rs:206:9
[INFO] [stdout]     |
[INFO] [stdout] 205 | pub struct Context {
[INFO] [stdout]     |            ------- fields in this struct
[INFO] [stdout] 206 |     pub info: syn::Ident,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 207 |     pub input: syn::Expr,
[INFO] [stdout] 208 |     pub marker: syn::Expr,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Context` 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/parser.rs:82:10
[INFO] [stdout]    |
[INFO] [stdout] 82 |     Wild(Token![_]),
[INFO] [stdout]    |     ---- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Pattern` 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] 82 -     Wild(Token![_]),
[INFO] [stdout] 82 +     Wild(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `info` and `marker` are never read
[INFO] [stdout]    --> src/parser.rs:206:9
[INFO] [stdout]     |
[INFO] [stdout] 205 | pub struct Context {
[INFO] [stdout]     |            ------- fields in this struct
[INFO] [stdout] 206 |     pub info: syn::Ident,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 207 |     pub input: syn::Expr,
[INFO] [stdout] 208 |     pub marker: syn::Expr,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Context` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.81s
[INFO] running `Command { std: "docker" "inspect" "5d99a5176764cea429030ae7bf4b4da9a382710bc284c29eef543c22bfd98fc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d99a5176764cea429030ae7bf4b4da9a382710bc284c29eef543c22bfd98fc9", kill_on_drop: false }`
[INFO] [stdout] 5d99a5176764cea429030ae7bf4b4da9a382710bc284c29eef543c22bfd98fc9