Dec 04 11:37:58.988 INFO checking richardbrodie/mercury against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 11:37:58.988 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 04 11:37:59.160 INFO [stdout] b7fb97a2fccab324bd348f9fa34582bd63bd438238a4a680694674cc11ff5080
Dec 04 11:37:59.162 INFO running `"docker" "start" "-a" "b7fb97a2fccab324bd348f9fa34582bd63bd438238a4a680694674cc11ff5080"`
Dec 04 11:37:59.571 INFO [stderr] usermod: no changes
Dec 04 11:37:59.731 INFO [stderr]     Checking serde_yaml v0.8.7
Dec 04 11:37:59.731 INFO [stderr]    Compiling syn v0.15.15
Dec 04 11:37:59.735 INFO [stderr]     Checking env_logger v0.5.13
Dec 04 11:38:00.763 INFO [stderr]     Checking pretty_env_logger v0.2.4
Dec 04 11:38:11.627 INFO [stderr]    Compiling synstructure v0.10.1
Dec 04 11:38:11.631 INFO [stderr]    Compiling serde_derive v1.0.80
Dec 04 11:38:17.264 INFO [stderr]    Compiling failure_derive v0.1.3
Dec 04 11:38:20.553 INFO [stderr]     Checking failure v0.1.3
Dec 04 11:38:21.321 INFO [stderr]     Checking dotenv v0.13.0
Dec 04 11:38:33.067 INFO [stderr]     Checking mercury v0.1.0 (/source)
Dec 04 11:38:34.431 INFO [stderr] warning: unused import: `std::env`
Dec 04 11:38:34.431 INFO [stderr]  --> src/types.rs:2:5
Dec 04 11:38:34.431 INFO [stderr]   |
Dec 04 11:38:34.431 INFO [stderr] 2 | use std::env;
Dec 04 11:38:34.431 INFO [stderr]   |     ^^^^^^^^
Dec 04 11:38:34.431 INFO [stderr]   |
Dec 04 11:38:34.431 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 11:38:34.431 INFO [stderr] 
Dec 04 11:38:34.432 INFO [stderr] warning: unused import: `File`
Dec 04 11:38:34.432 INFO [stderr]  --> src/types.rs:3:21
Dec 04 11:38:34.432 INFO [stderr]   |
Dec 04 11:38:34.432 INFO [stderr] 3 | use std::fs::{self, File};
Dec 04 11:38:34.432 INFO [stderr]   |                     ^^^^
Dec 04 11:38:34.432 INFO [stderr] 
Dec 04 11:38:34.535 INFO [stderr] warning: unused import: `std::env`
Dec 04 11:38:34.535 INFO [stderr]  --> src/types.rs:2:5
Dec 04 11:38:34.535 INFO [stderr]   |
Dec 04 11:38:34.535 INFO [stderr] 2 | use std::env;
Dec 04 11:38:34.535 INFO [stderr]   |     ^^^^^^^^
Dec 04 11:38:34.535 INFO [stderr]   |
Dec 04 11:38:34.535 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 11:38:34.535 INFO [stderr] 
Dec 04 11:38:34.535 INFO [stderr] warning: unused import: `File`
Dec 04 11:38:34.535 INFO [stderr]  --> src/types.rs:3:21
Dec 04 11:38:34.535 INFO [stderr]   |
Dec 04 11:38:34.535 INFO [stderr] 3 | use std::fs::{self, File};
Dec 04 11:38:34.535 INFO [stderr]   |                     ^^^^
Dec 04 11:38:34.535 INFO [stderr] 
Dec 04 11:38:34.579 INFO [stderr] warning: struct is never constructed: `Feed`
Dec 04 11:38:34.579 INFO [stderr]  --> src/types.rs:6:1
Dec 04 11:38:34.579 INFO [stderr]   |
Dec 04 11:38:34.579 INFO [stderr] 6 | pub struct Feed {
Dec 04 11:38:34.579 INFO [stderr]   | ^^^^^^^^^^^^^^^
Dec 04 11:38:34.579 INFO [stderr]   |
Dec 04 11:38:34.579 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 04 11:38:34.579 INFO [stderr] 
Dec 04 11:38:34.579 INFO [stderr] warning: struct is never constructed: `Item`
Dec 04 11:38:34.579 INFO [stderr]   --> src/types.rs:10:1
Dec 04 11:38:34.579 INFO [stderr]    |
Dec 04 11:38:34.579 INFO [stderr] 10 | pub struct Item {
Dec 04 11:38:34.579 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 04 11:38:34.579 INFO [stderr] 
Dec 04 11:38:34.587 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 11:38:34.587 INFO [stderr]   --> src/types.rs:29:13
Dec 04 11:38:34.587 INFO [stderr]    |
Dec 04 11:38:34.587 INFO [stderr] 29 |             fs::create_dir(&self.feed_path);
Dec 04 11:38:34.587 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 11:38:34.587 INFO [stderr]    |
Dec 04 11:38:34.587 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 11:38:34.587 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 11:38:34.587 INFO [stderr] 
Dec 04 11:38:34.704 INFO [stderr] warning: struct is never constructed: `Feed`
Dec 04 11:38:34.704 INFO [stderr]  --> src/types.rs:6:1
Dec 04 11:38:34.704 INFO [stderr]   |
Dec 04 11:38:34.704 INFO [stderr] 6 | pub struct Feed {
Dec 04 11:38:34.704 INFO [stderr]   | ^^^^^^^^^^^^^^^
Dec 04 11:38:34.704 INFO [stderr]   |
Dec 04 11:38:34.704 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 04 11:38:34.704 INFO [stderr] 
Dec 04 11:38:34.718 INFO [stderr] warning: struct is never constructed: `Item`
Dec 04 11:38:34.718 INFO [stderr]   --> src/types.rs:10:1
Dec 04 11:38:34.718 INFO [stderr]    |
Dec 04 11:38:34.718 INFO [stderr] 10 | pub struct Item {
Dec 04 11:38:34.718 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 04 11:38:34.718 INFO [stderr] 
Dec 04 11:38:34.718 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 11:38:34.718 INFO [stderr]   --> src/types.rs:29:13
Dec 04 11:38:34.718 INFO [stderr]    |
Dec 04 11:38:34.718 INFO [stderr] 29 |             fs::create_dir(&self.feed_path);
Dec 04 11:38:34.718 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 11:38:34.718 INFO [stderr]    |
Dec 04 11:38:34.718 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 11:38:34.718 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 11:38:34.718 INFO [stderr] 
Dec 04 11:38:34.763 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.16s
Dec 04 11:38:34.776 INFO [stderr] su: No module specific data is present
Dec 04 11:38:35.572 INFO running `"docker" "inspect" "b7fb97a2fccab324bd348f9fa34582bd63bd438238a4a680694674cc11ff5080"`
Dec 04 11:38:36.045 INFO running `"docker" "rm" "-f" "b7fb97a2fccab324bd348f9fa34582bd63bd438238a4a680694674cc11ff5080"`
Dec 04 11:38:36.315 INFO [stdout] b7fb97a2fccab324bd348f9fa34582bd63bd438238a4a680694674cc11ff5080