[INFO] fetching crate instruct-macros 0.1.8...
[INFO] checking instruct-macros-0.1.8 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate instruct-macros 0.1.8 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate instruct-macros 0.1.8
[INFO] finished tweaking crates.io crate instruct-macros 0.1.8
[INFO] tweaked toml for crates.io crate instruct-macros 0.1.8 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate instruct-macros 0.1.8 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]      Locking 11 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]  Downloading crates ...
[INFO] [stderr]   Downloaded instruct-macros-types v0.1.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 4bb2a531a8f284773771b70740b909c868a41d998872e1cb4804f05b089093d1
[INFO] running `Command { std: "docker" "start" "-a" "4bb2a531a8f284773771b70740b909c868a41d998872e1cb4804f05b089093d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4bb2a531a8f284773771b70740b909c868a41d998872e1cb4804f05b089093d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bb2a531a8f284773771b70740b909c868a41d998872e1cb4804f05b089093d1", kill_on_drop: false }`
[INFO] [stdout] 4bb2a531a8f284773771b70740b909c868a41d998872e1cb4804f05b089093d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] b4e640dc59085fc990ba645b32227041ff4b704870619b4560adc32f116b7b65
[INFO] running `Command { std: "docker" "start" "-a" "b4e640dc59085fc990ba645b32227041ff4b704870619b4560adc32f116b7b65", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling ryu v1.0.20
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking instruct-macros-types v0.1.8
[INFO] [stderr]     Checking instruct-macros v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `numbers` is never read
[INFO] [stdout]   --> tests/test_vec.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 16 |         struct Numbers {
[INFO] [stdout]    |                ------- field in this struct
[INFO] [stdout] 17 |             #[description("This is a list of numbers")]
[INFO] [stdout] 18 |             pub numbers: Vec<i32>,
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Numbers` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `age` is never read
[INFO] [stdout]   --> tests/integration_test.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 67 |         pub struct UserInfo {
[INFO] [stdout]    |                    -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 70 |             pub age: u8,
[INFO] [stdout]    |                 ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `UserInfo` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `street` and `city` are never read
[INFO] [stdout]    --> tests/integration_test.rs:106:17
[INFO] [stdout]     |
[INFO] [stdout] 105 |         pub struct Address {
[INFO] [stdout]     |                    ------- fields in this struct
[INFO] [stdout] 106 |             pub street: String,
[INFO] [stdout]     |                 ^^^^^^
[INFO] [stdout] 107 |             pub city: String,
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Address` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `age`, and `address` are never read
[INFO] [stdout]    --> tests/integration_test.rs:112:17
[INFO] [stdout]     |
[INFO] [stdout] 111 |         pub struct User {
[INFO] [stdout]     |                    ---- fields in this struct
[INFO] [stdout] 112 |             pub name: String,
[INFO] [stdout]     |                 ^^^^
[INFO] [stdout] 113 |             pub age: u8,
[INFO] [stdout]     |                 ^^^
[INFO] [stdout] 114 |             pub address: Address,
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `User` 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 `name` is never read
[INFO] [stdout]   --> tests/test_vec.rs:51:17
[INFO] [stdout]    |
[INFO] [stdout] 49 |         struct User {
[INFO] [stdout]    |                ---- field in this struct
[INFO] [stdout] 50 |             #[description("This is a list of numbers")]
[INFO] [stdout] 51 |             pub name: String,
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `User` 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 `users` is never read
[INFO] [stdout]   --> tests/test_vec.rs:58:17
[INFO] [stdout]    |
[INFO] [stdout] 56 |         struct Users {
[INFO] [stdout]    |                ----- field in this struct
[INFO] [stdout] 57 |             #[description("This is a list of users")]
[INFO] [stdout] 58 |             pub users: Vec<User>,
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Users` 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 12.65s
[INFO] running `Command { std: "docker" "inspect" "b4e640dc59085fc990ba645b32227041ff4b704870619b4560adc32f116b7b65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4e640dc59085fc990ba645b32227041ff4b704870619b4560adc32f116b7b65", kill_on_drop: false }`
[INFO] [stdout] b4e640dc59085fc990ba645b32227041ff4b704870619b4560adc32f116b7b65