[INFO] cloning repository https://github.com/gitletH/rust-macro-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gitletH/rust-macro-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FgitletH%2Frust-macro-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FgitletH%2Frust-macro-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3a85f231cb9db049557807e3ca17667f5bc4fde7
[INFO] checking gitletH/rust-macro-example against master#3f28fe133475ec5faf3413b556bf3cfb0d51336c for pr-112365-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FgitletH%2Frust-macro-example" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gitletH/rust-macro-example on toolchain 3f28fe133475ec5faf3413b556bf3cfb0d51336c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f28fe133475ec5faf3413b556bf3cfb0d51336c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gitletH/rust-macro-example
[INFO] finished tweaking git repo https://github.com/gitletH/rust-macro-example
[INFO] tweaked toml for git repo https://github.com/gitletH/rust-macro-example written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/gitletH/rust-macro-example 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" "+3f28fe133475ec5faf3413b556bf3cfb0d51336c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking gitletH/rust-macro-example against try#2eb702bf20a12c67e5629a5c82890c910c267bd9 for pr-112365-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FgitletH%2Frust-macro-example" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gitletH/rust-macro-example on toolchain 2eb702bf20a12c67e5629a5c82890c910c267bd9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2eb702bf20a12c67e5629a5c82890c910c267bd9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gitletH/rust-macro-example
[INFO] finished tweaking git repo https://github.com/gitletH/rust-macro-example
[INFO] tweaked toml for git repo https://github.com/gitletH/rust-macro-example written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/gitletH/rust-macro-example 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" "+2eb702bf20a12c67e5629a5c82890c910c267bd9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking gitletH/rust-macro-example against try#2eb702bf20a12c67e5629a5c82890c910c267bd9 for pr-112365-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FgitletH%2Frust-macro-example" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gitletH/rust-macro-example on toolchain 2eb702bf20a12c67e5629a5c82890c910c267bd9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2eb702bf20a12c67e5629a5c82890c910c267bd9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gitletH/rust-macro-example
[INFO] finished tweaking git repo https://github.com/gitletH/rust-macro-example
[INFO] tweaked toml for git repo https://github.com/gitletH/rust-macro-example written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/gitletH/rust-macro-example 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" "+2eb702bf20a12c67e5629a5c82890c910c267bd9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2eb702bf20a12c67e5629a5c82890c910c267bd9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b2e22f49bbf6268d2f1fb68d1d4822d662d0bd9b9f20c29c842a69a6063fb5f
[INFO] running `Command { std: "docker" "start" "-a" "8b2e22f49bbf6268d2f1fb68d1d4822d662d0bd9b9f20c29c842a69a6063fb5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b2e22f49bbf6268d2f1fb68d1d4822d662d0bd9b9f20c29c842a69a6063fb5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b2e22f49bbf6268d2f1fb68d1d4822d662d0bd9b9f20c29c842a69a6063fb5f", kill_on_drop: false }`
[INFO] [stdout] 8b2e22f49bbf6268d2f1fb68d1d4822d662d0bd9b9f20c29c842a69a6063fb5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2eb702bf20a12c67e5629a5c82890c910c267bd9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 55b3ac05db022ff8454292175648e90ba895ee59198cea7a190691885180ff6c
[INFO] running `Command { std: "docker" "start" "-a" "55b3ac05db022ff8454292175648e90ba895ee59198cea7a190691885180ff6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking lib1 v0.1.0 (/opt/rustwide/workdir/lib1)
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling lib v0.1.0 (/opt/rustwide/workdir/lib)
[INFO] [stdout] warning: unused imports: `Error`, `parse_quote`
[INFO] [stdout]  --> lib/src/lib.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | use syn::{parse_quote, Error, parse_macro_input, DeriveInput, Data};
[INFO] [stdout]   |           ^^^^^^^^^^^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `attr`
[INFO] [stdout]   --> lib/src/lib.rs:55:25
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn AssertReturnSync(attr: TokenStream, item: TokenStream) -> TokenStream {
[INFO] [stdout]    |                         ^^^^ help: if this is intentional, prefix it with an underscore: `_attr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `AssertReturnSync` should have a snake case name
[INFO] [stdout]   --> lib/src/lib.rs:55:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub fn AssertReturnSync(attr: TokenStream, item: TokenStream) -> TokenStream {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `assert_return_sync`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rust-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] TokenStream [
[INFO] [stdout]     Ident {
[INFO] [stdout]         ident: "const",
[INFO] [stdout]         span: #0 bytes(692..694),
[INFO] [stdout]     },
[INFO] [stdout]     Ident {
[INFO] [stdout]         ident: "_",
[INFO] [stdout]         span: #0 bytes(692..694),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: ':',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(692..694),
[INFO] [stdout]     },
[INFO] [stdout]     Ident {
[INFO] [stdout]         ident: "fn",
[INFO] [stdout]         span: #0 bytes(692..694),
[INFO] [stdout]     },
[INFO] [stdout]     Group {
[INFO] [stdout]         delimiter: Parenthesis,
[INFO] [stdout]         stream: TokenStream [],
[INFO] [stdout]         span: #0 bytes(692..694),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: '=',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(692..694),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: '|',
[INFO] [stdout]         spacing: Joint,
[INFO] [stdout]         span: #0 bytes(692..693),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: '|',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(693..694),
[INFO] [stdout]     },
[INFO] [stdout]     Group {
[INFO] [stdout]         delimiter: Brace,
[INFO] [stdout]         stream: TokenStream [],
[INFO] [stdout]         span: #0 bytes(692..694),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: ';',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(692..694),
[INFO] [stdout]     },
[INFO] [stdout] ]
[INFO] [stdout] TokenStream [
[INFO] [stdout]     Ident {
[INFO] [stdout]         ident: "const",
[INFO] [stdout]         span: #0 bytes(703..707),
[INFO] [stdout]     },
[INFO] [stdout]     Ident {
[INFO] [stdout]         ident: "_",
[INFO] [stdout]         span: #0 bytes(703..707),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: ':',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(703..707),
[INFO] [stdout]     },
[INFO] [stdout]     Ident {
[INFO] [stdout]         ident: "fn",
[INFO] [stdout]         span: #0 bytes(703..707),
[INFO] [stdout]     },
[INFO] [stdout]     Group {
[INFO] [stdout]         delimiter: Parenthesis,
[INFO] [stdout]         stream: TokenStream [],
[INFO] [stdout]         span: #0 bytes(703..707),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: '=',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(703..707),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: '|',
[INFO] [stdout]         spacing: Joint,
[INFO] [stdout]         span: #0 bytes(703..707),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: '|',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(703..707),
[INFO] [stdout]     },
[INFO] [stdout]     Group {
[INFO] [stdout]         delimiter: Brace,
[INFO] [stdout]         stream: TokenStream [],
[INFO] [stdout]         span: #0 bytes(703..707),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: ';',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(703..707),
[INFO] [stdout]     },
[INFO] [stdout] ]
[INFO] [stdout] TokenStream [
[INFO] [stdout]     Ident {
[INFO] [stdout]         ident: "const",
[INFO] [stdout]         span: #0 bytes(716..723),
[INFO] [stdout]     },
[INFO] [stdout]     Ident {
[INFO] [stdout]         ident: "_",
[INFO] [stdout]         span: #0 bytes(716..723),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: ':',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(716..723),
[INFO] [stdout]     },
[INFO] [stdout]     Ident {
[INFO] [stdout]         ident: "fn",
[INFO] [stdout]         span: #0 bytes(716..723),
[INFO] [stdout]     },
[INFO] [stdout]     Group {
[INFO] [stdout]         delimiter: Parenthesis,
[INFO] [stdout]         stream: TokenStream [],
[INFO] [stdout]         span: #0 bytes(716..723),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: '=',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(716..723),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: '|',
[INFO] [stdout]         spacing: Joint,
[INFO] [stdout]         span: #0 bytes(716..723),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: '|',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(716..723),
[INFO] [stdout]     },
[INFO] [stdout]     Group {
[INFO] [stdout]         delimiter: Brace,
[INFO] [stdout]         stream: TokenStream [],
[INFO] [stdout]         span: #0 bytes(716..723),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: ';',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(716..723),
[INFO] [stdout]     },
[INFO] [stdout] ]
[INFO] [stdout] TokenStream [
[INFO] [stdout]     Ident {
[INFO] [stdout]         ident: "const",
[INFO] [stdout]         span: #0 bytes(692..694),
[INFO] [stdout]     },
[INFO] [stdout]     Ident {
[INFO] [stdout]         ident: "_",
[INFO] [stdout]         span: #0 bytes(692..694),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: ':',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(692..694),
[INFO] [stdout]     },
[INFO] [stdout]     Ident {
[INFO] [stdout]         ident: "fn",
[INFO] [stdout]         span: #0 bytes(692..694),
[INFO] [stdout]     },
[INFO] [stdout]     Group {
[INFO] [stdout]         delimiter: Parenthesis,
[INFO] [stdout]         stream: TokenStream [],
[INFO] [stdout]         span: #0 bytes(692..694),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: '=',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(692..694),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: '|',
[INFO] [stdout]         spacing: Joint,
[INFO] [stdout]         span: #0 bytes(692..693),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: '|',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(693..694),
[INFO] [stdout]     },
[INFO] [stdout]     Group {
[INFO] [stdout]         delimiter: Brace,
[INFO] [stdout]         stream: TokenStream [],
[INFO] [stdout]         span: #0 bytes(692..694),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: ';',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(692..694),
[INFO] [stdout]     },
[INFO] [stdout] ]
[INFO] [stdout] TokenStream [
[INFO] [stdout]     Ident {
[INFO] [stdout]         ident: "const",
[INFO] [stdout]         span: #0 bytes(703..707),
[INFO] [stdout]     },
[INFO] [stdout]     Ident {
[INFO] [stdout]         ident: "_",
[INFO] [stdout]         span: #0 bytes(703..707),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: ':',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(703..707),
[INFO] [stdout]     },
[INFO] [stdout]     Ident {
[INFO] [stdout]         ident: "fn",
[INFO] [stdout]         span: #0 bytes(703..707),
[INFO] [stdout]     },
[INFO] [stdout]     Group {
[INFO] [stdout]         delimiter: Parenthesis,
[INFO] [stdout]         stream: TokenStream [],
[INFO] [stdout]         span: #0 bytes(703..707),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: '=',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(703..707),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: '|',
[INFO] [stdout]         spacing: Joint,
[INFO] [stdout]         span: #0 bytes(703..707),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: '|',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(703..707),
[INFO] [stdout]     },
[INFO] [stdout]     Group {
[INFO] [stdout]         delimiter: Brace,
[INFO] [stdout]         stream: TokenStream [],
[INFO] [stdout]         span: #0 bytes(703..707),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: ';',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(703..707),
[INFO] [stdout]     },
[INFO] [stdout] ]
[INFO] [stdout] TokenStream [
[INFO] [stdout]     Ident {
[INFO] [stdout]         ident: "const",
[INFO] [stdout]         span: #0 bytes(716..723),
[INFO] [stdout]     },
[INFO] [stdout]     Ident {
[INFO] [stdout]         ident: "_",
[INFO] [stdout]         span: #0 bytes(716..723),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: ':',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(716..723),
[INFO] [stdout]     },
[INFO] [stdout]     Ident {
[INFO] [stdout]         ident: "fn",
[INFO] [stdout]         span: #0 bytes(716..723),
[INFO] [stdout]     },
[INFO] [stdout]     Group {
[INFO] [stdout]         delimiter: Parenthesis,
[INFO] [stdout]         stream: TokenStream [],
[INFO] [stdout]         span: #0 bytes(716..723),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: '=',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(716..723),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: '|',
[INFO] [stdout]         spacing: Joint,
[INFO] [stdout]         span: #0 bytes(716..723),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: '|',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(716..723),
[INFO] [stdout]     },
[INFO] [stdout]     Group {
[INFO] [stdout]         delimiter: Brace,
[INFO] [stdout]         stream: TokenStream [],
[INFO] [stdout]         span: #0 bytes(716..723),
[INFO] [stdout]     },
[INFO] [stdout]     Punct {
[INFO] [stdout]         ch: ';',
[INFO] [stdout]         spacing: Alone,
[INFO] [stdout]         span: #0 bytes(716..723),
[INFO] [stdout]     },
[INFO] [stdout] ]
[INFO] [stdout] warning: fields `a`, `b`, and `c` are never read
[INFO] [stdout]   --> src/main.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct Foo {
[INFO] [stdout]    |        --- fields in this struct
[INFO] [stdout] 43 |     a: u8,
[INFO] [stdout]    |     ^
[INFO] [stdout] 44 |     b: bool,
[INFO] [stdout]    |     ^
[INFO] [stdout] 45 |     c: Vec<u8>,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `a`, `b`, and `c` are never read
[INFO] [stdout]   --> src/main.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct Foo {
[INFO] [stdout]    |        --- fields in this struct
[INFO] [stdout] 43 |     a: u8,
[INFO] [stdout]    |     ^
[INFO] [stdout] 44 |     b: bool,
[INFO] [stdout]    |     ^
[INFO] [stdout] 45 |     c: Vec<u8>,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.17s
[INFO] running `Command { std: "docker" "inspect" "55b3ac05db022ff8454292175648e90ba895ee59198cea7a190691885180ff6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55b3ac05db022ff8454292175648e90ba895ee59198cea7a190691885180ff6c", kill_on_drop: false }`
[INFO] [stdout] 55b3ac05db022ff8454292175648e90ba895ee59198cea7a190691885180ff6c