[INFO] cloning repository https://github.com/adambrenecki/yorick
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adambrenecki/yorick" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadambrenecki%2Fyorick"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadambrenecki%2Fyorick'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] aee35e5509473e7671dd4eb192c1b7ba1a93b720
[INFO] checking adambrenecki/yorick against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadambrenecki%2Fyorick" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adambrenecki/yorick on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/adambrenecki/yorick
[INFO] finished tweaking git repo https://github.com/adambrenecki/yorick
[INFO] tweaked toml for git repo https://github.com/adambrenecki/yorick written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/adambrenecki/yorick already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 17f2b397f7a52f34fa28609e8f83fdadf3227151a1ef18a6648feaa0fe6d09a3
[INFO] running `"docker" "start" "-a" "17f2b397f7a52f34fa28609e8f83fdadf3227151a1ef18a6648feaa0fe6d09a3"`
[INFO] [stderr]     Checking same-file v1.0.0
[INFO] [stderr]     Checking toml v0.4.5
[INFO] [stderr]     Checking tempdir v0.3.5
[INFO] [stderr]     Checking walkdir v2.0.1
[INFO] [stderr]     Checking yorick v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stderr]  --> src/skeleton.rs:3:40
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{BufReader, Read, Result, Write};
[INFO] [stderr]   |                                        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `create_dir`
[INFO] [stderr]  --> src/skeleton.rs:4:21
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::fs::{File, create_dir};
[INFO] [stderr]   |                     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]  --> src/skeleton.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::collections::HashMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tempdir::TempDir`
[INFO] [stderr]  --> src/skeleton.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use tempdir::TempDir;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/skeleton.rs:11:28
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn files(&self) -> Box<Iterator<Item = Self::File>>;
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Self::File>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/skeleton.rs:16:38
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn contents(&self) -> Result<Box<Read>>;
[INFO] [stderr]    |                                      ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/skeleton.rs:26:28
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn files(&self) -> Box<Iterator<Item = FsFile>> {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = FsFile>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/skeleton.rs:53:38
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn contents(&self) -> Result<Box<Read>> {
[INFO] [stderr]    |                                      ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/output.rs:2:30
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{Result, Write, Read};
[INFO] [stderr]   |                              ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tempdir::TempDir`
[INFO] [stderr]  --> src/output.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use tempdir::TempDir;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/output.rs:7:47
[INFO] [stderr]   |
[INFO] [stderr] 7 |     fn get_writer(&self, &Path) -> Result<Box<Write>>;
[INFO] [stderr]   |                                               ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/output.rs:15:53
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn get_writer(&self, path: &Path) -> Result<Box<Write>> {
[INFO] [stderr]    |                                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Deserialize`, `Deserializer`, `self`
[INFO] [stderr]  --> src/config.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use serde::de::{self, Deserialize, Deserializer};
[INFO] [stderr]   |                 ^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `toml`
[INFO] [stderr]  --> src/config.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use toml;
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |         file.contents().unwrap().read(contents);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     writer.write(b"Hello!");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/skeleton.rs:11:28
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn files(&self) -> Box<Iterator<Item = Self::File>>;
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Self::File>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/skeleton.rs:16:38
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn contents(&self) -> Result<Box<Read>>;
[INFO] [stderr]    |                                      ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/skeleton.rs:26:28
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn files(&self) -> Box<Iterator<Item = FsFile>> {
[INFO] [stderr]    |                            ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = FsFile>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/skeleton.rs:53:38
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn contents(&self) -> Result<Box<Read>> {
[INFO] [stderr]    |                                      ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/output.rs:7:47
[INFO] [stderr]   |
[INFO] [stderr] 7 |     fn get_writer(&self, &Path) -> Result<Box<Write>>;
[INFO] [stderr]   |                                               ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/output.rs:15:53
[INFO] [stderr]    |
[INFO] [stderr] 15 |     fn get_writer(&self, path: &Path) -> Result<Box<Write>> {
[INFO] [stderr]    |                                                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Deserialize`, `Deserializer`, `self`
[INFO] [stderr]  --> src/config.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use serde::de::{self, Deserialize, Deserializer};
[INFO] [stderr]   |                 ^^^^  ^^^^^^^^^^^  ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |         file.contents().unwrap().read(contents);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     writer.write(b"Hello!");
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.70s
[INFO] running `"docker" "inspect" "17f2b397f7a52f34fa28609e8f83fdadf3227151a1ef18a6648feaa0fe6d09a3"`
[INFO] running `"docker" "rm" "-f" "17f2b397f7a52f34fa28609e8f83fdadf3227151a1ef18a6648feaa0fe6d09a3"`
[INFO] [stdout] 17f2b397f7a52f34fa28609e8f83fdadf3227151a1ef18a6648feaa0fe6d09a3