Dec 18 04:36:07.594 INFO checking adambrenecki/yorick against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 04:36:07.594 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/adambrenecki/yorick:/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 18 04:36:07.831 INFO [stdout] 2d38c0604016f79e405cdd1de725320bbc6b6ef766623eb18647901e62c526f5
Dec 18 04:36:07.832 INFO running `"docker" "start" "-a" "2d38c0604016f79e405cdd1de725320bbc6b6ef766623eb18647901e62c526f5"`
Dec 18 04:36:09.215 INFO [stderr]     Checking maplit v1.0.0
Dec 18 04:36:09.215 INFO [stderr]     Checking toml v0.4.5
Dec 18 04:36:09.216 INFO [stderr]     Checking tempdir v0.3.5
Dec 18 04:36:11.420 INFO [stderr]     Checking yorick v0.1.0 (/opt/crater/workdir)
Dec 18 04:36:11.900 INFO [stderr] warning: unused imports: `Deserialize`, `Deserializer`, `self`
Dec 18 04:36:11.900 INFO [stderr]  --> src/config.rs:1:17
Dec 18 04:36:11.900 INFO [stderr]   |
Dec 18 04:36:11.900 INFO [stderr] 1 | use serde::de::{self, Deserialize, Deserializer};
Dec 18 04:36:11.900 INFO [stderr]   |                 ^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^^
Dec 18 04:36:11.900 INFO [stderr]   |
Dec 18 04:36:11.900 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 04:36:11.900 INFO [stderr] 
Dec 18 04:36:11.956 INFO [stderr] warning: unused `#[macro_use]` import
Dec 18 04:36:11.956 INFO [stderr]  --> src/main.rs:3:1
Dec 18 04:36:11.956 INFO [stderr]   |
Dec 18 04:36:11.956 INFO [stderr] 3 | #[macro_use]
Dec 18 04:36:11.956 INFO [stderr]   | ^^^^^^^^^^^^
Dec 18 04:36:11.956 INFO [stderr]   |
Dec 18 04:36:11.956 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 04:36:11.956 INFO [stderr] 
Dec 18 04:36:11.956 INFO [stderr] warning: unused import: `Write`
Dec 18 04:36:11.956 INFO [stderr]  --> src/skeleton.rs:3:40
Dec 18 04:36:11.956 INFO [stderr]   |
Dec 18 04:36:11.956 INFO [stderr] 3 | use std::io::{BufReader, Read, Result, Write};
Dec 18 04:36:11.956 INFO [stderr]   |                                        ^^^^^
Dec 18 04:36:11.956 INFO [stderr] 
Dec 18 04:36:11.956 INFO [stderr] warning: unused import: `create_dir`
Dec 18 04:36:11.956 INFO [stderr]  --> src/skeleton.rs:4:21
Dec 18 04:36:11.956 INFO [stderr]   |
Dec 18 04:36:11.956 INFO [stderr] 4 | use std::fs::{File, create_dir};
Dec 18 04:36:11.956 INFO [stderr]   |                     ^^^^^^^^^^
Dec 18 04:36:11.956 INFO [stderr] 
Dec 18 04:36:11.956 INFO [stderr] warning: unused import: `std::collections::HashMap`
Dec 18 04:36:11.956 INFO [stderr]  --> src/skeleton.rs:6:5
Dec 18 04:36:11.956 INFO [stderr]   |
Dec 18 04:36:11.956 INFO [stderr] 6 | use std::collections::HashMap;
Dec 18 04:36:11.956 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:36:11.956 INFO [stderr] 
Dec 18 04:36:11.956 INFO [stderr] warning: unused import: `tempdir::TempDir`
Dec 18 04:36:11.956 INFO [stderr]  --> src/skeleton.rs:7:5
Dec 18 04:36:11.956 INFO [stderr]   |
Dec 18 04:36:11.956 INFO [stderr] 7 | use tempdir::TempDir;
Dec 18 04:36:11.956 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 18 04:36:11.956 INFO [stderr] 
Dec 18 04:36:11.956 INFO [stderr] warning: unused import: `Read`
Dec 18 04:36:11.956 INFO [stderr]  --> src/output.rs:2:30
Dec 18 04:36:11.956 INFO [stderr]   |
Dec 18 04:36:11.956 INFO [stderr] 2 | use std::io::{Result, Write, Read};
Dec 18 04:36:11.956 INFO [stderr]   |                              ^^^^
Dec 18 04:36:11.956 INFO [stderr] 
Dec 18 04:36:11.956 INFO [stderr] warning: unused import: `tempdir::TempDir`
Dec 18 04:36:11.956 INFO [stderr]  --> src/output.rs:4:5
Dec 18 04:36:11.957 INFO [stderr]   |
Dec 18 04:36:11.957 INFO [stderr] 4 | use tempdir::TempDir;
Dec 18 04:36:11.957 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Dec 18 04:36:11.957 INFO [stderr] 
Dec 18 04:36:11.957 INFO [stderr] warning: unused imports: `Deserialize`, `Deserializer`, `self`
Dec 18 04:36:11.957 INFO [stderr]  --> src/config.rs:1:17
Dec 18 04:36:11.957 INFO [stderr]   |
Dec 18 04:36:11.957 INFO [stderr] 1 | use serde::de::{self, Deserialize, Deserializer};
Dec 18 04:36:11.957 INFO [stderr]   |                 ^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^^
Dec 18 04:36:11.957 INFO [stderr] 
Dec 18 04:36:11.957 INFO [stderr] warning: unused import: `toml`
Dec 18 04:36:11.957 INFO [stderr]  --> src/config.rs:2:5
Dec 18 04:36:11.957 INFO [stderr]   |
Dec 18 04:36:11.957 INFO [stderr] 2 | use toml;
Dec 18 04:36:11.957 INFO [stderr]   |     ^^^^
Dec 18 04:36:11.957 INFO [stderr] 
Dec 18 04:36:12.216 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 04:36:12.216 INFO [stderr]   --> src/main.rs:24:9
Dec 18 04:36:12.216 INFO [stderr]    |
Dec 18 04:36:12.216 INFO [stderr] 24 |         file.contents().unwrap().read(contents);
Dec 18 04:36:12.216 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:36:12.216 INFO [stderr]    |
Dec 18 04:36:12.216 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 04:36:12.216 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 04:36:12.216 INFO [stderr] 
Dec 18 04:36:12.216 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 04:36:12.216 INFO [stderr]   --> src/main.rs:30:5
Dec 18 04:36:12.216 INFO [stderr]    |
Dec 18 04:36:12.216 INFO [stderr] 30 |     writer.write(b"Hello!");
Dec 18 04:36:12.216 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:36:12.216 INFO [stderr]    |
Dec 18 04:36:12.216 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 04:36:12.216 INFO [stderr] 
Dec 18 04:36:12.231 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 04:36:12.231 INFO [stderr]   --> src/main.rs:24:9
Dec 18 04:36:12.231 INFO [stderr]    |
Dec 18 04:36:12.231 INFO [stderr] 24 |         file.contents().unwrap().read(contents);
Dec 18 04:36:12.231 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:36:12.231 INFO [stderr]    |
Dec 18 04:36:12.231 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 04:36:12.231 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 04:36:12.231 INFO [stderr] 
Dec 18 04:36:12.231 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 04:36:12.231 INFO [stderr]   --> src/main.rs:30:5
Dec 18 04:36:12.231 INFO [stderr]    |
Dec 18 04:36:12.231 INFO [stderr] 30 |     writer.write(b"Hello!");
Dec 18 04:36:12.231 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 04:36:12.231 INFO [stderr]    |
Dec 18 04:36:12.231 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 04:36:12.231 INFO [stderr] 
Dec 18 04:36:12.256 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.13s
Dec 18 04:36:12.750 INFO running `"docker" "inspect" "2d38c0604016f79e405cdd1de725320bbc6b6ef766623eb18647901e62c526f5"`
Dec 18 04:36:12.910 INFO running `"docker" "rm" "-f" "2d38c0604016f79e405cdd1de725320bbc6b6ef766623eb18647901e62c526f5"`
Dec 18 04:36:13.013 INFO [stdout] 2d38c0604016f79e405cdd1de725320bbc6b6ef766623eb18647901e62c526f5