Dec 17 16:59:27.304 INFO checking richardbrodie/mercury against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 16:59:27.304 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/richardbrodie/mercury:/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 17 16:59:27.474 INFO [stdout] 2d9156c69412a26312c492b2049d71e5eec3c1fb8283201d60758b6a2b1b7e85
Dec 17 16:59:27.476 INFO running `"docker" "start" "-a" "2d9156c69412a26312c492b2049d71e5eec3c1fb8283201d60758b6a2b1b7e85"`
Dec 17 16:59:28.087 INFO [stderr]     Checking serde_yaml v0.8.7
Dec 17 16:59:28.087 INFO [stderr]    Compiling syn v0.15.15
Dec 17 16:59:28.088 INFO [stderr]     Checking env_logger v0.5.13
Dec 17 16:59:28.952 INFO [stderr]     Checking pretty_env_logger v0.2.4
Dec 17 16:59:39.421 INFO [stderr]    Compiling synstructure v0.10.1
Dec 17 16:59:39.429 INFO [stderr]    Compiling serde_derive v1.0.80
Dec 17 16:59:45.104 INFO [stderr]    Compiling failure_derive v0.1.3
Dec 17 16:59:48.169 INFO [stderr]     Checking failure v0.1.3
Dec 17 16:59:48.964 INFO [stderr]     Checking dotenv v0.13.0
Dec 17 16:59:59.678 INFO [stderr]     Checking mercury v0.1.0 (/opt/crater/workdir)
Dec 17 17:00:00.296 INFO [stderr] warning: unused import: `std::env`
Dec 17 17:00:00.296 INFO [stderr]  --> src/types.rs:2:5
Dec 17 17:00:00.296 INFO [stderr]   |
Dec 17 17:00:00.296 INFO [stderr] 2 | use std::env;
Dec 17 17:00:00.296 INFO [stderr]   |     ^^^^^^^^
Dec 17 17:00:00.296 INFO [stderr]   |
Dec 17 17:00:00.296 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 17:00:00.296 INFO [stderr] 
Dec 17 17:00:00.296 INFO [stderr] warning: unused import: `File`
Dec 17 17:00:00.296 INFO [stderr]  --> src/types.rs:3:21
Dec 17 17:00:00.296 INFO [stderr]   |
Dec 17 17:00:00.296 INFO [stderr] 3 | use std::fs::{self, File};
Dec 17 17:00:00.296 INFO [stderr]   |                     ^^^^
Dec 17 17:00:00.296 INFO [stderr] 
Dec 17 17:00:00.308 INFO [stderr] warning: unused import: `std::env`
Dec 17 17:00:00.308 INFO [stderr]  --> src/types.rs:2:5
Dec 17 17:00:00.308 INFO [stderr]   |
Dec 17 17:00:00.308 INFO [stderr] 2 | use std::env;
Dec 17 17:00:00.308 INFO [stderr]   |     ^^^^^^^^
Dec 17 17:00:00.308 INFO [stderr]   |
Dec 17 17:00:00.308 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 17 17:00:00.308 INFO [stderr] 
Dec 17 17:00:00.308 INFO [stderr] warning: unused import: `File`
Dec 17 17:00:00.308 INFO [stderr]  --> src/types.rs:3:21
Dec 17 17:00:00.308 INFO [stderr]   |
Dec 17 17:00:00.308 INFO [stderr] 3 | use std::fs::{self, File};
Dec 17 17:00:00.308 INFO [stderr]   |                     ^^^^
Dec 17 17:00:00.308 INFO [stderr] 
Dec 17 17:00:00.544 INFO [stderr] warning: struct is never constructed: `Feed`
Dec 17 17:00:00.544 INFO [stderr]  --> src/types.rs:6:1
Dec 17 17:00:00.544 INFO [stderr]   |
Dec 17 17:00:00.544 INFO [stderr] 6 | pub struct Feed {
Dec 17 17:00:00.544 INFO [stderr]   | ^^^^^^^^^^^^^^^
Dec 17 17:00:00.544 INFO [stderr]   |
Dec 17 17:00:00.544 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 17:00:00.544 INFO [stderr] 
Dec 17 17:00:00.544 INFO [stderr] warning: struct is never constructed: `Item`
Dec 17 17:00:00.544 INFO [stderr]   --> src/types.rs:10:1
Dec 17 17:00:00.544 INFO [stderr]    |
Dec 17 17:00:00.544 INFO [stderr] 10 | pub struct Item {
Dec 17 17:00:00.544 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 17 17:00:00.544 INFO [stderr] 
Dec 17 17:00:00.544 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 17:00:00.544 INFO [stderr]   --> src/types.rs:29:13
Dec 17 17:00:00.544 INFO [stderr]    |
Dec 17 17:00:00.544 INFO [stderr] 29 |             fs::create_dir(&self.feed_path);
Dec 17 17:00:00.544 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 17:00:00.544 INFO [stderr]    |
Dec 17 17:00:00.544 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 17:00:00.544 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 17:00:00.544 INFO [stderr] 
Dec 17 17:00:00.548 INFO [stderr] warning: struct is never constructed: `Feed`
Dec 17 17:00:00.548 INFO [stderr]  --> src/types.rs:6:1
Dec 17 17:00:00.548 INFO [stderr]   |
Dec 17 17:00:00.548 INFO [stderr] 6 | pub struct Feed {
Dec 17 17:00:00.548 INFO [stderr]   | ^^^^^^^^^^^^^^^
Dec 17 17:00:00.548 INFO [stderr]   |
Dec 17 17:00:00.548 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 17:00:00.548 INFO [stderr] 
Dec 17 17:00:00.548 INFO [stderr] warning: struct is never constructed: `Item`
Dec 17 17:00:00.548 INFO [stderr]   --> src/types.rs:10:1
Dec 17 17:00:00.548 INFO [stderr]    |
Dec 17 17:00:00.548 INFO [stderr] 10 | pub struct Item {
Dec 17 17:00:00.548 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 17 17:00:00.548 INFO [stderr] 
Dec 17 17:00:00.548 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 17:00:00.548 INFO [stderr]   --> src/types.rs:29:13
Dec 17 17:00:00.548 INFO [stderr]    |
Dec 17 17:00:00.548 INFO [stderr] 29 |             fs::create_dir(&self.feed_path);
Dec 17 17:00:00.548 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 17:00:00.549 INFO [stderr]    |
Dec 17 17:00:00.549 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 17 17:00:00.549 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 17:00:00.549 INFO [stderr] 
Dec 17 17:00:00.597 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.66s
Dec 17 17:00:01.212 INFO running `"docker" "inspect" "2d9156c69412a26312c492b2049d71e5eec3c1fb8283201d60758b6a2b1b7e85"`
Dec 17 17:00:01.448 INFO running `"docker" "rm" "-f" "2d9156c69412a26312c492b2049d71e5eec3c1fb8283201d60758b6a2b1b7e85"`
Dec 17 17:00:01.716 INFO [stdout] 2d9156c69412a26312c492b2049d71e5eec3c1fb8283201d60758b6a2b1b7e85