Dec 18 07:36:23.022 INFO checking FredericDesgreniers/rand_field against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 07:36:23.022 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 07:36:23.434 INFO [stdout] 2d7a1f8ba96c096cf9673dd2ca35b42a0c103ee090eaa2ab259350f9a358aa1c
Dec 18 07:36:23.436 INFO running `"docker" "start" "-a" "2d7a1f8ba96c096cf9673dd2ca35b42a0c103ee090eaa2ab259350f9a358aa1c"`
Dec 18 07:36:25.956 INFO [stderr]     Checking proc-macro2 v0.4.9
Dec 18 07:36:25.956 INFO [stderr]    Compiling rand v0.5.4
Dec 18 07:36:25.964 INFO [stderr]     Checking rand_field v0.1.0 (/opt/crater/workdir/rand_field)
Dec 18 07:36:25.964 INFO [stderr]    Compiling syn v0.14.7
Dec 18 07:36:26.932 INFO [stderr] warning: unused import: `rand::Rng`
Dec 18 07:36:26.932 INFO [stderr]  --> rand_field/src/lib.rs:2:5
Dec 18 07:36:26.932 INFO [stderr]   |
Dec 18 07:36:26.932 INFO [stderr] 2 | use rand::Rng;
Dec 18 07:36:26.932 INFO [stderr]   |     ^^^^^^^^^
Dec 18 07:36:26.932 INFO [stderr]   |
Dec 18 07:36:26.932 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 07:36:26.932 INFO [stderr] 
Dec 18 07:36:26.960 INFO [stderr] warning: unused import: `rand::Rng`
Dec 18 07:36:26.960 INFO [stderr]  --> rand_field/src/lib.rs:2:5
Dec 18 07:36:26.960 INFO [stderr]   |
Dec 18 07:36:26.960 INFO [stderr] 2 | use rand::Rng;
Dec 18 07:36:26.960 INFO [stderr]   |     ^^^^^^^^^
Dec 18 07:36:26.960 INFO [stderr]   |
Dec 18 07:36:26.960 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 07:36:26.960 INFO [stderr] 
Dec 18 07:36:28.652 INFO [stderr]     Checking quote v0.6.4
Dec 18 07:36:37.200 INFO [stderr]     Checking rand_field_derive v0.1.0 (/opt/crater/workdir/rand_field_derive)
Dec 18 07:36:37.610 INFO [stderr] warning: unused import: `Field`
Dec 18 07:36:37.610 INFO [stderr]   --> rand_field_derive/src/lib.rs:11:17
Dec 18 07:36:37.610 INFO [stderr]    |
Dec 18 07:36:37.610 INFO [stderr] 11 | use syn::{Data, Field, Fields, Type};
Dec 18 07:36:37.610 INFO [stderr]    |                 ^^^^^
Dec 18 07:36:37.610 INFO [stderr]    |
Dec 18 07:36:37.610 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 07:36:37.610 INFO [stderr] 
Dec 18 07:36:37.610 INFO [stderr] warning: unused import: `proc_macro2::Punct`
Dec 18 07:36:37.610 INFO [stderr]   --> rand_field_derive/src/lib.rs:12:5
Dec 18 07:36:37.610 INFO [stderr]    |
Dec 18 07:36:37.610 INFO [stderr] 12 | use proc_macro2::Punct;
Dec 18 07:36:37.610 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 18 07:36:37.610 INFO [stderr] 
Dec 18 07:36:37.777 INFO [stderr] warning: unused variable: `index`
Dec 18 07:36:37.777 INFO [stderr]   --> rand_field_derive/src/lib.rs:85:13
Dec 18 07:36:37.777 INFO [stderr]    |
Dec 18 07:36:37.777 INFO [stderr] 85 |         let index = rand::thread_rng().gen_range(0, choices.len());
Dec 18 07:36:37.777 INFO [stderr]    |             ^^^^^ help: consider using `_index` instead
Dec 18 07:36:37.777 INFO [stderr]    |
Dec 18 07:36:37.777 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 07:36:37.777 INFO [stderr] 
Dec 18 07:36:38.060 INFO [stderr] warning: unused import: `Field`
Dec 18 07:36:38.060 INFO [stderr]   --> rand_field_derive/src/lib.rs:11:17
Dec 18 07:36:38.060 INFO [stderr]    |
Dec 18 07:36:38.060 INFO [stderr] 11 | use syn::{Data, Field, Fields, Type};
Dec 18 07:36:38.060 INFO [stderr]    |                 ^^^^^
Dec 18 07:36:38.060 INFO [stderr]    |
Dec 18 07:36:38.060 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 07:36:38.060 INFO [stderr] 
Dec 18 07:36:38.060 INFO [stderr] warning: unused import: `proc_macro2::Punct`
Dec 18 07:36:38.060 INFO [stderr]   --> rand_field_derive/src/lib.rs:12:5
Dec 18 07:36:38.060 INFO [stderr]    |
Dec 18 07:36:38.060 INFO [stderr] 12 | use proc_macro2::Punct;
Dec 18 07:36:38.060 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 18 07:36:38.060 INFO [stderr] 
Dec 18 07:36:38.305 INFO [stderr] warning: unused variable: `index`
Dec 18 07:36:38.305 INFO [stderr]   --> rand_field_derive/src/lib.rs:85:13
Dec 18 07:36:38.305 INFO [stderr]    |
Dec 18 07:36:38.305 INFO [stderr] 85 |         let index = rand::thread_rng().gen_range(0, choices.len());
Dec 18 07:36:38.305 INFO [stderr]    |             ^^^^^ help: consider using `_index` instead
Dec 18 07:36:38.305 INFO [stderr]    |
Dec 18 07:36:38.305 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 07:36:38.305 INFO [stderr] 
Dec 18 07:36:43.080 INFO [stderr] warning: unused import: `Field`
Dec 18 07:36:43.080 INFO [stderr]   --> rand_field_derive/src/lib.rs:11:17
Dec 18 07:36:43.080 INFO [stderr]    |
Dec 18 07:36:43.080 INFO [stderr] 11 | use syn::{Data, Field, Fields, Type};
Dec 18 07:36:43.080 INFO [stderr]    |                 ^^^^^
Dec 18 07:36:43.080 INFO [stderr]    |
Dec 18 07:36:43.080 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 18 07:36:43.080 INFO [stderr] 
Dec 18 07:36:43.080 INFO [stderr] warning: unused import: `proc_macro2::Punct`
Dec 18 07:36:43.080 INFO [stderr]   --> rand_field_derive/src/lib.rs:12:5
Dec 18 07:36:43.080 INFO [stderr]    |
Dec 18 07:36:43.080 INFO [stderr] 12 | use proc_macro2::Punct;
Dec 18 07:36:43.080 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 18 07:36:43.080 INFO [stderr] 
Dec 18 07:36:43.156 INFO [stderr] warning: unused variable: `index`
Dec 18 07:36:43.156 INFO [stderr]   --> rand_field_derive/src/lib.rs:85:13
Dec 18 07:36:43.156 INFO [stderr]    |
Dec 18 07:36:43.156 INFO [stderr] 85 |         let index = rand::thread_rng().gen_range(0, choices.len());
Dec 18 07:36:43.156 INFO [stderr]    |             ^^^^^ help: consider using `_index` instead
Dec 18 07:36:43.156 INFO [stderr]    |
Dec 18 07:36:43.156 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 07:36:43.156 INFO [stderr] 
Dec 18 07:36:44.484 INFO [stderr]     Checking RandField v0.1.0 (/opt/crater/workdir)
Dec 18 07:36:45.052 INFO [stderr] warning: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable
Dec 18 07:36:45.053 INFO [stderr]  --> src/main.rs:1:12
Dec 18 07:36:45.053 INFO [stderr]   |
Dec 18 07:36:45.053 INFO [stderr] 1 | #![feature(attr_literals)]
Dec 18 07:36:45.053 INFO [stderr]   |            ^^^^^^^^^^^^^
Dec 18 07:36:45.054 INFO [stderr]   |
Dec 18 07:36:45.054 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 07:36:45.054 INFO [stderr] 
Dec 18 07:36:45.055 INFO [stderr] warning: crate `RandField` should have a snake case name such as `rand_field`
Dec 18 07:36:45.055 INFO [stderr]   |
Dec 18 07:36:45.055 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 18 07:36:45.056 INFO [stderr] 
Dec 18 07:36:45.238 INFO [stderr] warning: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable
Dec 18 07:36:45.238 INFO [stderr]  --> src/main.rs:1:12
Dec 18 07:36:45.238 INFO [stderr]   |
Dec 18 07:36:45.238 INFO [stderr] 1 | #![feature(attr_literals)]
Dec 18 07:36:45.238 INFO [stderr]   |            ^^^^^^^^^^^^^
Dec 18 07:36:45.238 INFO [stderr]   |
Dec 18 07:36:45.238 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 07:36:45.238 INFO [stderr] 
Dec 18 07:36:45.238 INFO [stderr] warning: crate `RandField` should have a snake case name such as `rand_field`
Dec 18 07:36:45.238 INFO [stderr]   |
Dec 18 07:36:45.238 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 18 07:36:45.238 INFO [stderr] 
Dec 18 07:36:45.281 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.41s
Dec 18 07:36:46.342 INFO running `"docker" "inspect" "2d7a1f8ba96c096cf9673dd2ca35b42a0c103ee090eaa2ab259350f9a358aa1c"`
Dec 18 07:36:46.763 INFO running `"docker" "rm" "-f" "2d7a1f8ba96c096cf9673dd2ca35b42a0c103ee090eaa2ab259350f9a358aa1c"`
Dec 18 07:36:47.072 INFO [stdout] 2d7a1f8ba96c096cf9673dd2ca35b42a0c103ee090eaa2ab259350f9a358aa1c