Dec 05 02:27:53.415 INFO checking FredericDesgreniers/rand_field against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 02:27:53.415 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 02:27:53.895 INFO [stdout] 8f456e18aa3af50cd77c6ec1105fba7d2d47ff8d4386b3443f025baf61141f9c
Dec 05 02:27:53.901 INFO running `"docker" "start" "-a" "8f456e18aa3af50cd77c6ec1105fba7d2d47ff8d4386b3443f025baf61141f9c"`
Dec 05 02:27:55.151 INFO [stderr] usermod: no changes
Dec 05 02:27:55.254 INFO [stderr]     Checking proc-macro2 v0.4.9
Dec 05 02:27:55.255 INFO [stderr]    Compiling rand v0.5.4
Dec 05 02:27:55.255 INFO [stderr]     Checking rand_field v0.1.0 (/source/rand_field)
Dec 05 02:27:55.255 INFO [stderr]    Compiling syn v0.14.7
Dec 05 02:27:56.864 INFO [stderr] warning: unused import: `rand::Rng`
Dec 05 02:27:56.864 INFO [stderr]  --> rand_field/src/lib.rs:2:5
Dec 05 02:27:56.864 INFO [stderr]   |
Dec 05 02:27:56.864 INFO [stderr] 2 | use rand::Rng;
Dec 05 02:27:56.864 INFO [stderr]   |     ^^^^^^^^^
Dec 05 02:27:56.864 INFO [stderr]   |
Dec 05 02:27:56.864 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 02:27:56.864 INFO [stderr] 
Dec 05 02:27:56.907 INFO [stderr] warning: unused import: `rand::Rng`
Dec 05 02:27:56.907 INFO [stderr]  --> rand_field/src/lib.rs:2:5
Dec 05 02:27:56.907 INFO [stderr]   |
Dec 05 02:27:56.907 INFO [stderr] 2 | use rand::Rng;
Dec 05 02:27:56.907 INFO [stderr]   |     ^^^^^^^^^
Dec 05 02:27:56.907 INFO [stderr]   |
Dec 05 02:27:56.907 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 02:27:56.907 INFO [stderr] 
Dec 05 02:27:58.855 INFO [stderr]     Checking quote v0.6.4
Dec 05 02:28:07.764 INFO [stderr]     Checking rand_field_derive v0.1.0 (/source/rand_field_derive)
Dec 05 02:28:10.965 INFO [stderr] warning: unused import: `Field`
Dec 05 02:28:10.965 INFO [stderr]   --> rand_field_derive/src/lib.rs:11:17
Dec 05 02:28:10.965 INFO [stderr]    |
Dec 05 02:28:10.965 INFO [stderr] 11 | use syn::{Data, Field, Fields, Type};
Dec 05 02:28:10.966 INFO [stderr]    |                 ^^^^^
Dec 05 02:28:10.971 INFO [stderr]    |
Dec 05 02:28:10.971 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 05 02:28:10.972 INFO [stderr] 
Dec 05 02:28:10.987 INFO [stderr] warning: unused import: `proc_macro2::Punct`
Dec 05 02:28:10.987 INFO [stderr]   --> rand_field_derive/src/lib.rs:12:5
Dec 05 02:28:10.988 INFO [stderr]    |
Dec 05 02:28:10.988 INFO [stderr] 12 | use proc_macro2::Punct;
Dec 05 02:28:10.988 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 05 02:28:10.988 INFO [stderr] 
Dec 05 02:28:11.026 INFO [stderr] warning: unused import: `Field`
Dec 05 02:28:11.026 INFO [stderr]   --> rand_field_derive/src/lib.rs:11:17
Dec 05 02:28:11.026 INFO [stderr]    |
Dec 05 02:28:11.026 INFO [stderr] 11 | use syn::{Data, Field, Fields, Type};
Dec 05 02:28:11.026 INFO [stderr]    |                 ^^^^^
Dec 05 02:28:11.044 INFO [stderr]    |
Dec 05 02:28:11.044 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 05 02:28:11.044 INFO [stderr] 
Dec 05 02:28:11.044 INFO [stderr] warning: unused import: `proc_macro2::Punct`
Dec 05 02:28:11.044 INFO [stderr]   --> rand_field_derive/src/lib.rs:12:5
Dec 05 02:28:11.044 INFO [stderr]    |
Dec 05 02:28:11.044 INFO [stderr] 12 | use proc_macro2::Punct;
Dec 05 02:28:11.044 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 05 02:28:11.044 INFO [stderr] 
Dec 05 02:28:11.571 INFO [stderr] warning: unused variable: `index`
Dec 05 02:28:11.571 INFO [stderr]   --> rand_field_derive/src/lib.rs:85:13
Dec 05 02:28:11.572 INFO [stderr]    |
Dec 05 02:28:11.572 INFO [stderr] 85 |         let index = rand::thread_rng().gen_range(0, choices.len());
Dec 05 02:28:11.572 INFO [stderr]    |             ^^^^^ help: consider using `_index` instead
Dec 05 02:28:11.572 INFO [stderr]    |
Dec 05 02:28:11.573 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 02:28:11.573 INFO [stderr] 
Dec 05 02:28:11.579 INFO [stderr] warning: unused variable: `index`
Dec 05 02:28:11.579 INFO [stderr]   --> rand_field_derive/src/lib.rs:85:13
Dec 05 02:28:11.579 INFO [stderr]    |
Dec 05 02:28:11.579 INFO [stderr] 85 |         let index = rand::thread_rng().gen_range(0, choices.len());
Dec 05 02:28:11.579 INFO [stderr]    |             ^^^^^ help: consider using `_index` instead
Dec 05 02:28:11.603 INFO [stderr]    |
Dec 05 02:28:11.603 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 02:28:11.603 INFO [stderr] 
Dec 05 02:28:16.671 INFO [stderr] warning: unused import: `Field`
Dec 05 02:28:16.671 INFO [stderr]   --> rand_field_derive/src/lib.rs:11:17
Dec 05 02:28:16.671 INFO [stderr]    |
Dec 05 02:28:16.671 INFO [stderr] 11 | use syn::{Data, Field, Fields, Type};
Dec 05 02:28:16.671 INFO [stderr]    |                 ^^^^^
Dec 05 02:28:16.671 INFO [stderr]    |
Dec 05 02:28:16.671 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 05 02:28:16.671 INFO [stderr] 
Dec 05 02:28:16.671 INFO [stderr] warning: unused import: `proc_macro2::Punct`
Dec 05 02:28:16.671 INFO [stderr]   --> rand_field_derive/src/lib.rs:12:5
Dec 05 02:28:16.671 INFO [stderr]    |
Dec 05 02:28:16.671 INFO [stderr] 12 | use proc_macro2::Punct;
Dec 05 02:28:16.671 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^
Dec 05 02:28:16.671 INFO [stderr] 
Dec 05 02:28:16.750 INFO [stderr] warning: unused variable: `index`
Dec 05 02:28:16.750 INFO [stderr]   --> rand_field_derive/src/lib.rs:85:13
Dec 05 02:28:16.750 INFO [stderr]    |
Dec 05 02:28:16.750 INFO [stderr] 85 |         let index = rand::thread_rng().gen_range(0, choices.len());
Dec 05 02:28:16.750 INFO [stderr]    |             ^^^^^ help: consider using `_index` instead
Dec 05 02:28:16.750 INFO [stderr]    |
Dec 05 02:28:16.750 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 02:28:16.750 INFO [stderr] 
Dec 05 02:28:18.114 INFO [stderr]     Checking RandField v0.1.0 (/source)
Dec 05 02:28:19.263 INFO [stderr] warning: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable
Dec 05 02:28:19.263 INFO [stderr]  --> src/main.rs:1:12
Dec 05 02:28:19.263 INFO [stderr]   |
Dec 05 02:28:19.264 INFO [stderr] 1 | #![feature(attr_literals)]
Dec 05 02:28:19.264 INFO [stderr]   |            ^^^^^^^^^^^^^
Dec 05 02:28:19.264 INFO [stderr]   |
Dec 05 02:28:19.265 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 05 02:28:19.265 INFO [stderr] 
Dec 05 02:28:19.265 INFO [stderr] warning: crate `RandField` should have a snake case name such as `rand_field`
Dec 05 02:28:19.265 INFO [stderr]   |
Dec 05 02:28:19.266 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 05 02:28:19.266 INFO [stderr] 
Dec 05 02:28:19.355 INFO [stderr] warning: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable
Dec 05 02:28:19.355 INFO [stderr]  --> src/main.rs:1:12
Dec 05 02:28:19.355 INFO [stderr]   |
Dec 05 02:28:19.356 INFO [stderr] 1 | #![feature(attr_literals)]
Dec 05 02:28:19.356 INFO [stderr]   |            ^^^^^^^^^^^^^
Dec 05 02:28:19.356 INFO [stderr]   |
Dec 05 02:28:19.356 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 05 02:28:19.356 INFO [stderr] 
Dec 05 02:28:19.357 INFO [stderr] warning: crate `RandField` should have a snake case name such as `rand_field`
Dec 05 02:28:19.357 INFO [stderr]   |
Dec 05 02:28:19.357 INFO [stderr]   = note: #[warn(non_snake_case)] on by default
Dec 05 02:28:19.357 INFO [stderr] 
Dec 05 02:28:19.379 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.21s
Dec 05 02:28:19.384 INFO [stderr] su: No module specific data is present
Dec 05 02:28:21.193 INFO running `"docker" "inspect" "8f456e18aa3af50cd77c6ec1105fba7d2d47ff8d4386b3443f025baf61141f9c"`
Dec 05 02:28:21.565 INFO running `"docker" "rm" "-f" "8f456e18aa3af50cd77c6ec1105fba7d2d47ff8d4386b3443f025baf61141f9c"`
Dec 05 02:28:21.931 INFO [stdout] 8f456e18aa3af50cd77c6ec1105fba7d2d47ff8d4386b3443f025baf61141f9c