[INFO] cloning repository https://github.com/FredericDesgreniers/rand_field
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FredericDesgreniers/rand_field" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFredericDesgreniers%2Frand_field", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFredericDesgreniers%2Frand_field'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e141ec917949d537d77ba3d85502be3de5a2d4e9
[INFO] checking FredericDesgreniers/rand_field against master#6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd for pr-153721
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFredericDesgreniers%2Frand_field" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/FredericDesgreniers/rand_field
[INFO] finished tweaking git repo https://github.com/FredericDesgreniers/rand_field
[INFO] tweaked toml for git repo https://github.com/FredericDesgreniers/rand_field written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/FredericDesgreniers/rand_field on toolchain 6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/FredericDesgreniers/rand_field 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" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: rand_field/Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `rand_field` (manifest) generated 1 warning
[INFO] [stderr] warning: rand_field_derive/Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `rand_field_derive` (manifest) generated 1 warning
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `RandField` (manifest) generated 1 warning
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote v0.6.4
[INFO] [stderr]   Downloaded proc-macro2 v0.4.9
[INFO] [stderr]   Downloaded syn v0.14.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c7784a970474b64de127fd6b8ec997fd0275da4835733aafdf882090ee3b637d
[INFO] running `Command { std: "docker" "start" "c7784a970474b64de127fd6b8ec997fd0275da4835733aafdf882090ee3b637d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c7784a970474b64de127fd6b8ec997fd0275da4835733aafdf882090ee3b637d" "/opt/rustwide/cargo-home/bin/cargo" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7784a970474b64de127fd6b8ec997fd0275da4835733aafdf882090ee3b637d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c7784a970474b64de127fd6b8ec997fd0275da4835733aafdf882090ee3b637d" "/opt/rustwide/cargo-home/bin/cargo" "+6eda7419e71fdbc1185ed5be7e6bff1a474ab5cd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: rand_field/Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `rand_field` (manifest) generated 1 warning
[INFO] [stderr] warning: rand_field_derive/Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `rand_field_derive` (manifest) generated 1 warning
[INFO] [stderr] warning: Cargo.toml: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr] warning: `RandField` (manifest) generated 1 warning
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking proc-macro2 v0.4.9
[INFO] [stderr]    Compiling rand v0.5.4
[INFO] [stderr]     Checking quote v0.6.4
[INFO] [stderr]     Checking syn v0.14.7
[INFO] [stderr]     Checking rand_field v0.1.0 (/opt/rustwide/workdir/rand_field)
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> rand_field/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::Rng;
[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: `rand::Rng`
[INFO] [stdout]  --> rand_field/src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_field_derive v0.1.0 (/opt/rustwide/workdir/rand_field_derive)
[INFO] [stdout] warning: unused import: `Field`
[INFO] [stdout]   --> rand_field_derive/src/lib.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 | use syn::{Data, Field, Fields, Type};
[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: `proc_macro2::Punct`
[INFO] [stdout]   --> rand_field_derive/src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use proc_macro2::Punct;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Field`
[INFO] [stdout]   --> rand_field_derive/src/lib.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 | use syn::{Data, Field, Fields, Type};
[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: `proc_macro2::Punct`
[INFO] [stdout]   --> rand_field_derive/src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use proc_macro2::Punct;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> rand_field_derive/src/lib.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let index = rand::thread_rng().gen_range(0, choices.len());
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> rand_field_derive/src/lib.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let index = rand::thread_rng().gen_range(0, choices.len());
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Field`
[INFO] [stdout]   --> rand_field_derive/src/lib.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 | use syn::{Data, Field, Fields, Type};
[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: `proc_macro2::Punct`
[INFO] [stdout]   --> rand_field_derive/src/lib.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use proc_macro2::Punct;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> rand_field_derive/src/lib.rs:85:13
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let index = rand::thread_rng().gen_range(0, choices.len());
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking RandField v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(attr_literals)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct MaybeNum(Option<i32>);
[INFO] [stdout]    |        -------- ^^^^^^^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `MaybeNum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Name(String);
[INFO] [stdout]    |        ---- ^^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `Name` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(attr_literals)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct MaybeNum(Option<i32>);
[INFO] [stdout]    |        -------- ^^^^^^^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `MaybeNum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/main.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct Name(String);
[INFO] [stdout]    |        ---- ^^^^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `Name` 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 8.72s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.14.7
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "c7784a970474b64de127fd6b8ec997fd0275da4835733aafdf882090ee3b637d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7784a970474b64de127fd6b8ec997fd0275da4835733aafdf882090ee3b637d", kill_on_drop: false }`
[INFO] [stdout] c7784a970474b64de127fd6b8ec997fd0275da4835733aafdf882090ee3b637d
