[INFO] fetching crate easy_proc_macro 0.1.0...
[INFO] checking easy_proc_macro-0.1.0 against master#4eb62535fc12dd1a63fd43a4173e224e79313c4d for pr-158816
[INFO] extracting crate easy_proc_macro 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate easy_proc_macro 0.1.0
[INFO] finished tweaking crates.io crate easy_proc_macro 0.1.0
[INFO] tweaked toml for crates.io crate easy_proc_macro 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate easy_proc_macro 0.1.0 on toolchain 4eb62535fc12dd1a63fd43a4173e224e79313c4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate easy_proc_macro 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded redox_syscall v0.2.4
[INFO] [stderr]   Downloaded rand_hc v0.3.0
[INFO] [stderr]   Downloaded rand_core v0.6.1
[INFO] [stderr]   Downloaded tempfile v3.2.0
[INFO] [stderr]   Downloaded rand_chacha v0.3.0
[INFO] [stderr]   Downloaded rand v0.8.3
[INFO] [stderr]   Downloaded getrandom v0.2.2
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] d4fe057212cdd0be858122079f7d52b2ade41333c2b711e0142f58e03537ed82
[INFO] running `Command { std: "docker" "start" "d4fe057212cdd0be858122079f7d52b2ade41333c2b711e0142f58e03537ed82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4fe057212cdd0be858122079f7d52b2ade41333c2b711e0142f58e03537ed82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d4fe057212cdd0be858122079f7d52b2ade41333c2b711e0142f58e03537ed82" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d4fe057212cdd0be858122079f7d52b2ade41333c2b711e0142f58e03537ed82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d4fe057212cdd0be858122079f7d52b2ade41333c2b711e0142f58e03537ed82" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling itertools v0.10.0
[INFO] [stderr]     Checking quote v1.0.8
[INFO] [stderr]    Compiling rand_core v0.6.1
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking serde v1.0.123
[INFO] [stderr]     Checking serde_json v1.0.62
[INFO] [stderr]     Checking easy_proc_macro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `code`, `level`, `spans`, and `children` are never read
[INFO] [stdout]   --> src/compile/lints.rs:20:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Lint<'d> {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub code: Option<&'d str>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 21 |     #[serde(borrow)]
[INFO] [stdout] 22 |     pub level: Level<'d>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 23 |     pub spans: Vec<RawSpan<'d>>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 24 |     pub children: Vec<Lint<'d>>
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Lint` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `capture_type` is never read
[INFO] [stdout]    --> src/syntax.rs:184:6
[INFO] [stdout]     |
[INFO] [stdout] 181 | pub struct Argument {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 184 |     pub capture_type: CaptureType
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `code`, `level`, `spans`, and `children` are never read
[INFO] [stdout]   --> src/compile/lints.rs:20:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Lint<'d> {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub code: Option<&'d str>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 21 |     #[serde(borrow)]
[INFO] [stdout] 22 |     pub level: Level<'d>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 23 |     pub spans: Vec<RawSpan<'d>>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 24 |     pub children: Vec<Lint<'d>>
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Lint` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `capture_type` is never read
[INFO] [stdout]    --> src/syntax.rs:184:6
[INFO] [stdout]     |
[INFO] [stdout] 181 | pub struct Argument {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 184 |     pub capture_type: CaptureType
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `code`, `level`, `spans`, and `children` are never read
[INFO] [stdout]   --> src/compile/lints.rs:20:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Lint<'d> {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub code: Option<&'d str>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 21 |     #[serde(borrow)]
[INFO] [stdout] 22 |     pub level: Level<'d>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 23 |     pub spans: Vec<RawSpan<'d>>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 24 |     pub children: Vec<Lint<'d>>
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Lint` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `capture_type` is never read
[INFO] [stdout]    --> src/syntax.rs:184:6
[INFO] [stdout]     |
[INFO] [stdout] 181 | pub struct Argument {
[INFO] [stdout]     |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 184 |     pub capture_type: CaptureType
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.54s
[INFO] running `Command { std: "docker" "inspect" "d4fe057212cdd0be858122079f7d52b2ade41333c2b711e0142f58e03537ed82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4fe057212cdd0be858122079f7d52b2ade41333c2b711e0142f58e03537ed82", kill_on_drop: false }`
[INFO] [stdout] d4fe057212cdd0be858122079f7d52b2ade41333c2b711e0142f58e03537ed82
