[INFO] fetching crate extra_args 0.1.72...
[INFO] checking extra_args-0.1.72 against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] extracting crate extra_args 0.1.72 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate extra_args 0.1.72
[INFO] finished tweaking crates.io crate extra_args 0.1.72
[INFO] tweaked toml for crates.io crate extra_args 0.1.72 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate extra_args 0.1.72 on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "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 4 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.117)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c31f54efb716ef22e08274629d37d69ea0d60a21e140db668176f28b1e712b41
[INFO] running `Command { std: "docker" "start" "-a" "c31f54efb716ef22e08274629d37d69ea0d60a21e140db668176f28b1e712b41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c31f54efb716ef22e08274629d37d69ea0d60a21e140db668176f28b1e712b41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c31f54efb716ef22e08274629d37d69ea0d60a21e140db668176f28b1e712b41", kill_on_drop: false }`
[INFO] [stdout] c31f54efb716ef22e08274629d37d69ea0d60a21e140db668176f28b1e712b41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d451307a8ce0f7485cfd9c0681a5de6f798b81651bef2fa1ff2818ae7fdf90a1
[INFO] running `Command { std: "docker" "start" "-a" "d451307a8ce0f7485cfd9c0681a5de6f798b81651bef2fa1ff2818ae7fdf90a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]     Checking unicode-ident v1.0.24
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking quote v1.0.45
[INFO] [stderr]     Checking extra_args v0.1.72 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `quote::quote`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use quote::quote;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `quote::quote`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use quote::quote;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `syn::punctuated::Punctuated`
[INFO] [stdout]  --> src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use syn::punctuated::Punctuated;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `syn::punctuated::Punctuated`
[INFO] [stdout]  --> src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use syn::punctuated::Punctuated;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ItemFn`, `Token`, and `parse_macro_input`
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     parse_macro_input, Attribute, Expr, ExprCall, ExprMethodCall, ExprPath, FnArg, Ident, ItemFn,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^                                                                     ^^^^^^
[INFO] [stdout] 11 |     Meta, NestedMeta, Pat, Path, PathArguments, PathSegment, Signature, Token, Type,
[INFO] [stdout]    |                                                                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ItemFn`, `Token`, and `parse_macro_input`
[INFO] [stdout]   --> src/lib.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     parse_macro_input, Attribute, Expr, ExprCall, ExprMethodCall, ExprPath, FnArg, Ident, ItemFn,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^                                                                     ^^^^^^
[INFO] [stdout] 11 |     Meta, NestedMeta, Pat, Path, PathArguments, PathSegment, Signature, Token, Type,
[INFO] [stdout]    |                                                                         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/lib.rs:269:23
[INFO] [stdout]     |
[INFO] [stdout] 269 | pub fn with_ghost_var(args: TokenStream, input: TokenStream) -> TokenStream {
[INFO] [stdout]     |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Args` is never constructed
[INFO] [stdout]   --> src/lib.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Args {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `decl`, `var`, `var_as_expr`, and `ty` are never used
[INFO] [stdout]   --> src/lib.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Args {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] 26 |     fn decl(&self) -> FnArg {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn var(&self) -> Ident {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     fn var_as_expr(&self) -> Expr {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     fn ty(&self) -> Type {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pat_to_ident` is never used
[INFO] [stdout]   --> src/lib.rs:56:4
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn pat_to_ident(pat: Pat) -> Result<Ident> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `path_to_last_ident` is never used
[INFO] [stdout]   --> src/lib.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn path_to_last_ident(path: Path) -> Result<Ident> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expr_to_ident` is never used
[INFO] [stdout]   --> src/lib.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn expr_to_ident(expr: Expr) -> Result<Ident> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `proc_macro_diagnostic` is declared but not used
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]    --> src/lib.rs:269:23
[INFO] [stdout]     |
[INFO] [stdout] 269 | pub fn with_ghost_var(args: TokenStream, input: TokenStream) -> TokenStream {
[INFO] [stdout]     |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Args` is never constructed
[INFO] [stdout]   --> src/lib.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Args {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `decl`, `var`, `var_as_expr`, and `ty` are never used
[INFO] [stdout]   --> src/lib.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Args {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] 26 |     fn decl(&self) -> FnArg {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 30 |     fn var(&self) -> Ident {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     fn var_as_expr(&self) -> Expr {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     fn ty(&self) -> Type {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `pat_to_ident` is never used
[INFO] [stdout]   --> src/lib.rs:56:4
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn pat_to_ident(pat: Pat) -> Result<Ident> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `path_to_last_ident` is never used
[INFO] [stdout]   --> src/lib.rs:67:4
[INFO] [stdout]    |
[INFO] [stdout] 67 | fn path_to_last_ident(path: Path) -> Result<Ident> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `expr_to_ident` is never used
[INFO] [stdout]   --> src/lib.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn expr_to_ident(expr: Expr) -> Result<Ident> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `proc_macro_diagnostic` is declared but not used
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.59s
[INFO] running `Command { std: "docker" "inspect" "d451307a8ce0f7485cfd9c0681a5de6f798b81651bef2fa1ff2818ae7fdf90a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d451307a8ce0f7485cfd9c0681a5de6f798b81651bef2fa1ff2818ae7fdf90a1", kill_on_drop: false }`
[INFO] [stdout] d451307a8ce0f7485cfd9c0681a5de6f798b81651bef2fa1ff2818ae7fdf90a1
