Dec 18 07:36:22.381 INFO checking FredericDesgreniers/rand_field against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 07:36:22.381 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/FredericDesgreniers/rand_field:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 07:36:22.812 INFO [stdout] 7fe464f0b0bcfa1d64afbe51ca8932d926c3295baabaaecdf9b354c68cfe52b9
Dec 18 07:36:22.820 INFO running `"docker" "start" "-a" "7fe464f0b0bcfa1d64afbe51ca8932d926c3295baabaaecdf9b354c68cfe52b9"`
Dec 18 07:36:24.592 INFO [stderr]    Compiling unicode-xid v0.1.0
Dec 18 07:36:24.612 INFO [stderr]     Checking rand_field v0.1.0 (/opt/crater/workdir/rand_field)
Dec 18 07:36:24.612 INFO [stderr]     Checking syn v0.14.7
Dec 18 07:36:25.216 INFO [stderr] warning: unused import: `rand::Rng`
Dec 18 07:36:25.216 INFO [stderr]  --> rand_field/src/lib.rs:2:5
Dec 18 07:36:25.216 INFO [stderr]   |
Dec 18 07:36:25.216 INFO [stderr] 2 | use rand::Rng;
Dec 18 07:36:25.216 INFO [stderr]   |     ^^^^^^^^^
Dec 18 07:36:25.216 INFO [stderr]   |
Dec 18 07:36:25.216 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 07:36:25.216 INFO [stderr] 
Dec 18 07:36:25.404 INFO [stderr] warning: unused import: `rand::Rng`
Dec 18 07:36:25.404 INFO [stderr]  --> rand_field/src/lib.rs:2:5
Dec 18 07:36:25.404 INFO [stderr]   |
Dec 18 07:36:25.404 INFO [stderr] 2 | use rand::Rng;
Dec 18 07:36:25.404 INFO [stderr]   |     ^^^^^^^^^
Dec 18 07:36:25.436 INFO [stderr]   |
Dec 18 07:36:25.436 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 07:36:25.436 INFO [stderr] 
Dec 18 07:36:25.584 INFO [stderr]    Compiling proc-macro2 v0.4.9
Dec 18 07:36:28.457 INFO [stderr]    Compiling quote v0.6.4
Dec 18 07:36:34.333 INFO [stderr]     Checking rand_field_derive v0.1.0 (/opt/crater/workdir/rand_field_derive)
Dec 18 07:36:34.772 INFO [stderr] warning: unused import: `Field`
Dec 18 07:36:34.772 INFO [stderr]   --> rand_field_derive/src/lib.rs:11:17
Dec 18 07:36:34.772 INFO [stderr]    |
Dec 18 07:36:34.772 INFO [stderr] 11 | use syn::{Data, Field, Fields, Type};
Dec 18 07:36:34.772 INFO [stderr]    |                 ^^^^^
Dec 18 07:36:34.772 INFO [stderr]    |
Dec 18 07:36:34.772 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 07:36:34.772 INFO [stderr] 
Dec 18 07:36:34.772 INFO [stderr] warning: unused import: `proc_macro2::Punct`
Dec 18 07:36:34.772 INFO [stderr]   --> rand_field_derive/src/lib.rs:12:5
Dec 18 07:36:34.772 INFO [stderr]    |
Dec 18 07:36:34.772 INFO [stderr] 12 | use proc_macro2::Punct;
Dec 18 07:36:34.772 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 18 07:36:34.772 INFO [stderr] 
Dec 18 07:36:34.816 INFO [stderr] warning: unused import: `Field`
Dec 18 07:36:34.816 INFO [stderr]   --> rand_field_derive/src/lib.rs:11:17
Dec 18 07:36:34.816 INFO [stderr]    |
Dec 18 07:36:34.816 INFO [stderr] 11 | use syn::{Data, Field, Fields, Type};
Dec 18 07:36:34.816 INFO [stderr]    |                 ^^^^^
Dec 18 07:36:34.816 INFO [stderr]    |
Dec 18 07:36:34.816 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 07:36:34.816 INFO [stderr] 
Dec 18 07:36:34.816 INFO [stderr] warning: unused import: `proc_macro2::Punct`
Dec 18 07:36:34.816 INFO [stderr]   --> rand_field_derive/src/lib.rs:12:5
Dec 18 07:36:34.816 INFO [stderr]    |
Dec 18 07:36:34.816 INFO [stderr] 12 | use proc_macro2::Punct;
Dec 18 07:36:34.816 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 18 07:36:34.816 INFO [stderr] 
Dec 18 07:36:34.904 INFO [stderr] warning: unused variable: `index`
Dec 18 07:36:34.904 INFO [stderr]   --> rand_field_derive/src/lib.rs:85:13
Dec 18 07:36:34.904 INFO [stderr]    |
Dec 18 07:36:34.904 INFO [stderr] 85 |         let index = rand::thread_rng().gen_range(0, choices.len());
Dec 18 07:36:34.904 INFO [stderr]    |             ^^^^^ help: consider using `_index` instead
Dec 18 07:36:34.904 INFO [stderr]    |
Dec 18 07:36:34.904 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 07:36:34.904 INFO [stderr] 
Dec 18 07:36:35.057 INFO [stderr] warning: unused variable: `index`
Dec 18 07:36:35.057 INFO [stderr]   --> rand_field_derive/src/lib.rs:85:13
Dec 18 07:36:35.057 INFO [stderr]    |
Dec 18 07:36:35.057 INFO [stderr] 85 |         let index = rand::thread_rng().gen_range(0, choices.len());
Dec 18 07:36:35.057 INFO [stderr]    |             ^^^^^ help: consider using `_index` instead
Dec 18 07:36:35.057 INFO [stderr]    |
Dec 18 07:36:35.060 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 07:36:35.060 INFO [stderr] 
Dec 18 07:36:41.714 INFO [stderr] warning: unused import: `Field`
Dec 18 07:36:41.714 INFO [stderr]   --> rand_field_derive/src/lib.rs:11:17
Dec 18 07:36:41.714 INFO [stderr]    |
Dec 18 07:36:41.714 INFO [stderr] 11 | use syn::{Data, Field, Fields, Type};
Dec 18 07:36:41.714 INFO [stderr]    |                 ^^^^^
Dec 18 07:36:41.714 INFO [stderr]    |
Dec 18 07:36:41.714 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 07:36:41.714 INFO [stderr] 
Dec 18 07:36:41.714 INFO [stderr] warning: unused import: `proc_macro2::Punct`
Dec 18 07:36:41.714 INFO [stderr]   --> rand_field_derive/src/lib.rs:12:5
Dec 18 07:36:41.714 INFO [stderr]    |
Dec 18 07:36:41.714 INFO [stderr] 12 | use proc_macro2::Punct;
Dec 18 07:36:41.714 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 18 07:36:41.714 INFO [stderr] 
Dec 18 07:36:41.824 INFO [stderr] warning: unused variable: `index`
Dec 18 07:36:41.824 INFO [stderr]   --> rand_field_derive/src/lib.rs:85:13
Dec 18 07:36:41.824 INFO [stderr]    |
Dec 18 07:36:41.824 INFO [stderr] 85 |         let index = rand::thread_rng().gen_range(0, choices.len());
Dec 18 07:36:41.824 INFO [stderr]    |             ^^^^^ help: consider using `_index` instead
Dec 18 07:36:41.824 INFO [stderr]    |
Dec 18 07:36:41.824 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 07:36:41.824 INFO [stderr] 
Dec 18 07:36:43.164 INFO [stderr]     Checking RandField v0.1.0 (/opt/crater/workdir)
Dec 18 07:36:43.744 INFO [stderr] warning: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable
Dec 18 07:36:43.744 INFO [stderr]  --> src/main.rs:1:12
Dec 18 07:36:43.744 INFO [stderr]   |
Dec 18 07:36:43.744 INFO [stderr] 1 | #![feature(attr_literals)]
Dec 18 07:36:43.744 INFO [stderr]   |            ^^^^^^^^^^^^^
Dec 18 07:36:43.744 INFO [stderr]   |
Dec 18 07:36:43.744 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 07:36:43.744 INFO [stderr] 
Dec 18 07:36:43.744 INFO [stderr] warning: crate `RandField` should have a snake case name such as `rand_field`
Dec 18 07:36:43.744 INFO [stderr]   |
Dec 18 07:36:43.744 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 18 07:36:43.744 INFO [stderr] 
Dec 18 07:36:43.788 INFO [stderr] warning: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable
Dec 18 07:36:43.788 INFO [stderr]  --> src/main.rs:1:12
Dec 18 07:36:43.788 INFO [stderr]   |
Dec 18 07:36:43.788 INFO [stderr] 1 | #![feature(attr_literals)]
Dec 18 07:36:43.788 INFO [stderr]   |            ^^^^^^^^^^^^^
Dec 18 07:36:43.788 INFO [stderr]   |
Dec 18 07:36:43.788 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 07:36:43.788 INFO [stderr] 
Dec 18 07:36:43.788 INFO [stderr] warning: crate `RandField` should have a snake case name such as `rand_field`
Dec 18 07:36:43.788 INFO [stderr]   |
Dec 18 07:36:43.788 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 18 07:36:43.788 INFO [stderr] 
Dec 18 07:36:43.821 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.34s
Dec 18 07:36:45.198 INFO running `"docker" "inspect" "7fe464f0b0bcfa1d64afbe51ca8932d926c3295baabaaecdf9b354c68cfe52b9"`
Dec 18 07:36:45.576 INFO running `"docker" "rm" "-f" "7fe464f0b0bcfa1d64afbe51ca8932d926c3295baabaaecdf9b354c68cfe52b9"`
Dec 18 07:36:45.946 INFO [stdout] 7fe464f0b0bcfa1d64afbe51ca8932d926c3295baabaaecdf9b354c68cfe52b9