[INFO] fetching crate arraygen 0.3.2...
[INFO] checking arraygen-0.3.2 against master#b3bd7058c139e71bae0862ef8f8ac936208873e9 for pr-123752
[INFO] extracting crate arraygen 0.3.2 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate arraygen 0.3.2 on toolchain b3bd7058c139e71bae0862ef8f8ac936208873e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "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-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 56 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding compiletest_rs v0.7.1 (latest: v0.10.2)
[INFO] [stderr]       Adding miow v0.3.7 (latest: v0.6.0)
[INFO] [stderr]       Adding redox_syscall v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding rustfix v0.5.1 (latest: v0.8.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 582033f2b453661871505129af645fadaa2f139a848294978057da78bc3ec0e3
[INFO] running `Command { std: "docker" "start" "-a" "582033f2b453661871505129af645fadaa2f139a848294978057da78bc3ec0e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "582033f2b453661871505129af645fadaa2f139a848294978057da78bc3ec0e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "582033f2b453661871505129af645fadaa2f139a848294978057da78bc3ec0e3", kill_on_drop: false }`
[INFO] [stdout] 582033f2b453661871505129af645fadaa2f139a848294978057da78bc3ec0e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 380f3bdf2d94c790c4c7055925b1ea911c670550930d99f5b4f45ee17aaa9395
[INFO] running `Command { std: "docker" "start" "-a" "380f3bdf2d94c790c4c7055925b1ea911c670550930d99f5b4f45ee17aaa9395", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]    Compiling compiletest_rs v0.7.1
[INFO] [stderr]     Checking filetime v0.2.23
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking term v0.7.0
[INFO] [stderr]     Checking tester v0.9.1
[INFO] [stderr]     Checking quote v1.0.36
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]    Compiling serde_derive v1.0.197
[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]     Checking regex v1.10.4
[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 serde v1.0.197
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking rustfix v0.5.1
[INFO] [stderr] warning (Arraygen): Method 'foo' from struct 'Sut' returns an empty array.
[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] [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 10.60s
[INFO] running `Command { std: "docker" "inspect" "380f3bdf2d94c790c4c7055925b1ea911c670550930d99f5b4f45ee17aaa9395", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "380f3bdf2d94c790c4c7055925b1ea911c670550930d99f5b4f45ee17aaa9395", kill_on_drop: false }`
[INFO] [stdout] 380f3bdf2d94c790c4c7055925b1ea911c670550930d99f5b4f45ee17aaa9395
