Dec 11 11:01:50.004 INFO checking richardbrodie/mercury against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 11:01:50.004 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 11 11:01:50.127 INFO [stdout] e1b2aa590c7b5de6d9e88604f8d78e6d1403e21e9548e0454a60589338e3f9b8
Dec 11 11:01:50.129 INFO running `"docker" "start" "-a" "e1b2aa590c7b5de6d9e88604f8d78e6d1403e21e9548e0454a60589338e3f9b8"`
Dec 11 11:01:50.589 INFO [stderr] usermod: no changes
Dec 11 11:01:50.738 INFO [stderr]     Checking serde_yaml v0.8.7
Dec 11 11:01:50.744 INFO [stderr]    Compiling syn v0.15.15
Dec 11 11:01:50.745 INFO [stderr]     Checking pretty_env_logger v0.2.4
Dec 11 11:02:02.864 INFO [stderr]    Compiling synstructure v0.10.1
Dec 11 11:02:02.864 INFO [stderr]    Compiling serde_derive v1.0.80
Dec 11 11:02:08.508 INFO [stderr]    Compiling failure_derive v0.1.3
Dec 11 11:02:11.860 INFO [stderr]     Checking failure v0.1.3
Dec 11 11:02:12.818 INFO [stderr]     Checking dotenv v0.13.0
Dec 11 11:02:23.891 INFO [stderr]     Checking mercury v0.1.0 (/source)
Dec 11 11:02:25.253 INFO [stderr] warning: unused import: `std::env`
Dec 11 11:02:25.253 INFO [stderr]  --> src/types.rs:2:5
Dec 11 11:02:25.253 INFO [stderr]   |
Dec 11 11:02:25.253 INFO [stderr] 2 | use std::env;
Dec 11 11:02:25.253 INFO [stderr]   |     ^^^^^^^^
Dec 11 11:02:25.253 INFO [stderr]   |
Dec 11 11:02:25.253 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 11:02:25.253 INFO [stderr] 
Dec 11 11:02:25.253 INFO [stderr] warning: unused import: `File`
Dec 11 11:02:25.253 INFO [stderr]  --> src/types.rs:3:21
Dec 11 11:02:25.253 INFO [stderr]   |
Dec 11 11:02:25.253 INFO [stderr] 3 | use std::fs::{self, File};
Dec 11 11:02:25.253 INFO [stderr]   |                     ^^^^
Dec 11 11:02:25.253 INFO [stderr] 
Dec 11 11:02:25.268 INFO [stderr] warning: unused import: `std::env`
Dec 11 11:02:25.268 INFO [stderr]  --> src/types.rs:2:5
Dec 11 11:02:25.268 INFO [stderr]   |
Dec 11 11:02:25.268 INFO [stderr] 2 | use std::env;
Dec 11 11:02:25.268 INFO [stderr]   |     ^^^^^^^^
Dec 11 11:02:25.268 INFO [stderr]   |
Dec 11 11:02:25.268 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 11:02:25.268 INFO [stderr] 
Dec 11 11:02:25.268 INFO [stderr] warning: unused import: `File`
Dec 11 11:02:25.268 INFO [stderr]  --> src/types.rs:3:21
Dec 11 11:02:25.268 INFO [stderr]   |
Dec 11 11:02:25.268 INFO [stderr] 3 | use std::fs::{self, File};
Dec 11 11:02:25.268 INFO [stderr]   |                     ^^^^
Dec 11 11:02:25.268 INFO [stderr] 
Dec 11 11:02:25.408 INFO [stderr] warning: struct is never constructed: `Feed`
Dec 11 11:02:25.408 INFO [stderr]  --> src/types.rs:6:1
Dec 11 11:02:25.408 INFO [stderr]   |
Dec 11 11:02:25.408 INFO [stderr] 6 | pub struct Feed {
Dec 11 11:02:25.408 INFO [stderr]   | ^^^^^^^^^^^^^^^
Dec 11 11:02:25.408 INFO [stderr]   |
Dec 11 11:02:25.408 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 11:02:25.408 INFO [stderr] 
Dec 11 11:02:25.408 INFO [stderr] warning: struct is never constructed: `Item`
Dec 11 11:02:25.408 INFO [stderr]   --> src/types.rs:10:1
Dec 11 11:02:25.408 INFO [stderr]    |
Dec 11 11:02:25.408 INFO [stderr] 10 | pub struct Item {
Dec 11 11:02:25.408 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 11 11:02:25.408 INFO [stderr] 
Dec 11 11:02:25.408 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 11:02:25.408 INFO [stderr]   --> src/types.rs:29:13
Dec 11 11:02:25.408 INFO [stderr]    |
Dec 11 11:02:25.408 INFO [stderr] 29 |             fs::create_dir(&self.feed_path);
Dec 11 11:02:25.408 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:02:25.408 INFO [stderr]    |
Dec 11 11:02:25.408 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 11:02:25.408 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 11:02:25.409 INFO [stderr] 
Dec 11 11:02:25.516 INFO [stderr] warning: struct is never constructed: `Feed`
Dec 11 11:02:25.516 INFO [stderr]  --> src/types.rs:6:1
Dec 11 11:02:25.516 INFO [stderr]   |
Dec 11 11:02:25.516 INFO [stderr] 6 | pub struct Feed {
Dec 11 11:02:25.516 INFO [stderr]   | ^^^^^^^^^^^^^^^
Dec 11 11:02:25.516 INFO [stderr]   |
Dec 11 11:02:25.516 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 11:02:25.516 INFO [stderr] 
Dec 11 11:02:25.516 INFO [stderr] warning: struct is never constructed: `Item`
Dec 11 11:02:25.516 INFO [stderr]   --> src/types.rs:10:1
Dec 11 11:02:25.516 INFO [stderr]    |
Dec 11 11:02:25.516 INFO [stderr] 10 | pub struct Item {
Dec 11 11:02:25.516 INFO [stderr]    | ^^^^^^^^^^^^^^^
Dec 11 11:02:25.516 INFO [stderr] 
Dec 11 11:02:25.522 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 11:02:25.522 INFO [stderr]   --> src/types.rs:29:13
Dec 11 11:02:25.522 INFO [stderr]    |
Dec 11 11:02:25.522 INFO [stderr] 29 |             fs::create_dir(&self.feed_path);
Dec 11 11:02:25.522 INFO [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 11:02:25.522 INFO [stderr]    |
Dec 11 11:02:25.522 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 11:02:25.522 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 11:02:25.522 INFO [stderr] 
Dec 11 11:02:25.549 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.94s
Dec 11 11:02:25.561 INFO [stderr] su: No module specific data is present
Dec 11 11:02:26.090 INFO running `"docker" "inspect" "e1b2aa590c7b5de6d9e88604f8d78e6d1403e21e9548e0454a60589338e3f9b8"`
Dec 11 11:02:26.399 INFO running `"docker" "rm" "-f" "e1b2aa590c7b5de6d9e88604f8d78e6d1403e21e9548e0454a60589338e3f9b8"`
Dec 11 11:02:26.708 INFO [stdout] e1b2aa590c7b5de6d9e88604f8d78e6d1403e21e9548e0454a60589338e3f9b8