[INFO] fetching crate arraygen 0.3.2...
[INFO] checking arraygen-0.3.2 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate arraygen 0.3.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate arraygen 0.3.2 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arraygen 0.3.2
[INFO] finished tweaking crates.io crate arraygen 0.3.2
[INFO] tweaked toml for crates.io crate arraygen 0.3.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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 56 packages to latest compatible versions
[INFO] [stderr]       Adding compiletest_rs v0.7.1 (latest: v0.11.0)
[INFO] [stderr]       Adding hermit-abi v0.3.9 (latest: v0.4.0)
[INFO] [stderr]       Adding miow v0.3.7 (latest: v0.6.0)
[INFO] [stderr]       Adding rustfix v0.5.1 (latest: v0.8.4)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] [stderr]       Adding term v0.7.0 (latest: v1.0.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 559a19ab5399c162eba69f3f19a6692f64ad63411166aa5a0eb6831fdf6379b4
[INFO] running `Command { std: "docker" "start" "-a" "559a19ab5399c162eba69f3f19a6692f64ad63411166aa5a0eb6831fdf6379b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "559a19ab5399c162eba69f3f19a6692f64ad63411166aa5a0eb6831fdf6379b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "559a19ab5399c162eba69f3f19a6692f64ad63411166aa5a0eb6831fdf6379b4", kill_on_drop: false }`
[INFO] [stdout] 559a19ab5399c162eba69f3f19a6692f64ad63411166aa5a0eb6831fdf6379b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42a73097b7a74d64be4ac6333d9d0a0eabe32829e8ea92c84bbe2c121df1152c
[INFO] running `Command { std: "docker" "start" "-a" "42a73097b7a74d64be4ac6333d9d0a0eabe32829e8ea92c84bbe2c121df1152c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]     Checking unicode-width v0.1.13
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]    Compiling compiletest_rs v0.7.1
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking filetime v0.2.25
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking term v0.7.0
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]     Checking tester v0.9.1
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking arraygen v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `vis` is never read
[INFO] [stdout]   --> src/parse_derive_arraygen.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct DeriveArraygen {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 15 |     pub gen_arrays: HashMap<Ident, GenArray>,
[INFO] [stdout] 16 |     pub vis: Visibility,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `casts` is never read
[INFO] [stdout]   --> src/parse_gen_array.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct GenArray {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub casts: Vec<(syn::Ident, syn::Type, proc_macro2::TokenStream, CastKind)>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `insert_stable` is never used
[INFO] [stdout]  --> src/utils.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait OptionExtensions<T> {
[INFO] [stdout]   |           ---------------- method in this trait
[INFO] [stdout] 2 |     fn insert_stable(&mut self, value: T) -> &mut T;
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_derive v1.0.209
[INFO] [stdout] warning: field `vis` is never read
[INFO] [stdout]   --> src/parse_derive_arraygen.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct DeriveArraygen {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 15 |     pub gen_arrays: HashMap<Ident, GenArray>,
[INFO] [stdout] 16 |     pub vis: Visibility,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `casts` is never read
[INFO] [stdout]   --> src/parse_gen_array.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct GenArray {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub casts: Vec<(syn::Ident, syn::Type, proc_macro2::TokenStream, CastKind)>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `insert_stable` is never used
[INFO] [stdout]  --> src/utils.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait OptionExtensions<T> {
[INFO] [stdout]   |           ---------------- method in this trait
[INFO] [stdout] 2 |     fn insert_stable(&mut self, value: T) -> &mut T;
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking serde v1.0.209
[INFO] [stderr]     Checking serde_json v1.0.127
[INFO] [stderr]     Checking rustfix v0.5.1
[INFO] [stdout] warning: method `give` is never used
[INFO] [stdout]   --> tests/trait_objects_tests.rs:33:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |         trait UiController {
[INFO] [stdout]    |               ------------ method in this trait
[INFO] [stdout] 33 |             fn give(&self) -> f32;
[INFO] [stdout]    |                ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `value` is never read
[INFO] [stdout]   --> tests/trait_objects_tests.rs:38:17
[INFO] [stdout]    |
[INFO] [stdout] 37 |         struct RgbRedR {
[INFO] [stdout]    |                ------- field in this struct
[INFO] [stdout] 38 |             pub value: f32,
[INFO] [stdout]    |                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RgbRedR` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning (Arraygen): Method 'foo' from struct 'Sut' returns an empty array.
[INFO] [stdout] warning: field `vis` is never read
[INFO] [stdout]   --> src/parse_derive_arraygen.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct DeriveArraygen {
[INFO] [stdout]    |            -------------- field in this struct
[INFO] [stdout] 15 |     pub gen_arrays: HashMap<Ident, GenArray>,
[INFO] [stdout] 16 |     pub vis: Visibility,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `casts` is never read
[INFO] [stdout]   --> src/parse_gen_array.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct GenArray {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub casts: Vec<(syn::Ident, syn::Type, proc_macro2::TokenStream, CastKind)>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `insert_stable` is never used
[INFO] [stdout]  --> src/utils.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait OptionExtensions<T> {
[INFO] [stdout]   |           ---------------- method in this trait
[INFO] [stdout] 2 |     fn insert_stable(&mut self, value: T) -> &mut T;
[INFO] [stdout]   |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.85s
[INFO] running `Command { std: "docker" "inspect" "42a73097b7a74d64be4ac6333d9d0a0eabe32829e8ea92c84bbe2c121df1152c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42a73097b7a74d64be4ac6333d9d0a0eabe32829e8ea92c84bbe2c121df1152c", kill_on_drop: false }`
[INFO] [stdout] 42a73097b7a74d64be4ac6333d9d0a0eabe32829e8ea92c84bbe2c121df1152c