[INFO] updating cached repository https://github.com/mopemope/rrc
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/mopemope/rrc
[INFO] [stderr]    6403ccd..99c36a3  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 99c36a30de8706be0cdad3971ef8530d70a4ecad
[INFO] checking mopemope/rrc against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmopemope%2Frrc" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mopemope/rrc on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mopemope/rrc
[INFO] finished tweaking git repo https://github.com/mopemope/rrc
[INFO] tweaked toml for git repo https://github.com/mopemope/rrc written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/mopemope/rrc already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] a4dbf8701985636f4a14f5814bd072f4f31f1cd4e0f2781bba1a64e51d8e8960
[INFO] running `"docker" "start" "-a" "a4dbf8701985636f4a14f5814bd072f4f31f1cd4e0f2781bba1a64e51d8e8960"`
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking futures-io v0.3.4
[INFO] [stderr]     Checking futures-timer v2.0.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking async-task v1.3.1
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking kv-log-macro v1.0.4
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking async-std v1.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking rrc v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/config.rs:13:48
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub static ref DEFAULT_REPO_ROOT: String = { default_root() };
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `PathBuf`
[INFO] [stderr]   --> src/remote.rs:10:23
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::path::{Path, PathBuf};
[INFO] [stderr]    |                       ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/main.rs:14:42
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub static ref CONFIG_PATH: String = { config::get_config_path() };
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/config.rs:13:48
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub static ref DEFAULT_REPO_ROOT: String = { default_root() };
[INFO] [stderr]    |                                                ^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `PathBuf`
[INFO] [stderr]   --> src/remote.rs:10:23
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::path::{Path, PathBuf};
[INFO] [stderr]    |                       ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/remote.rs:200:9
[INFO] [stderr]     |
[INFO] [stderr] 200 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/main.rs:14:42
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub static ref CONFIG_PATH: String = { config::get_config_path() };
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `as_str`
[INFO] [stderr]   --> src/local.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn as_str(&self) -> &str {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/local.rs:290:5
[INFO] [stderr]     |
[INFO] [stderr] 290 |     pub fn new() -> FuzzyVec {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `len`
[INFO] [stderr]    --> src/local.rs:303:5
[INFO] [stderr]     |
[INFO] [stderr] 303 |     pub fn len(&self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `clear`
[INFO] [stderr]    --> src/local.rs:308:5
[INFO] [stderr]     |
[INFO] [stderr] 308 |     pub fn clear(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `append`
[INFO] [stderr]    --> src/local.rs:313:5
[INFO] [stderr]     |
[INFO] [stderr] 313 |     pub fn append(&mut self, entry: LocalRepository) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `user`
[INFO] [stderr]   --> src/remote.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn user(&self) -> &str {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `as_str`
[INFO] [stderr]   --> src/local.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn as_str(&self) -> &str {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/local.rs:290:5
[INFO] [stderr]     |
[INFO] [stderr] 290 |     pub fn new() -> FuzzyVec {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `len`
[INFO] [stderr]    --> src/local.rs:303:5
[INFO] [stderr]     |
[INFO] [stderr] 303 |     pub fn len(&self) -> usize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `clear`
[INFO] [stderr]    --> src/local.rs:308:5
[INFO] [stderr]     |
[INFO] [stderr] 308 |     pub fn clear(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `append`
[INFO] [stderr]    --> src/local.rs:313:5
[INFO] [stderr]     |
[INFO] [stderr] 313 |     pub fn append(&mut self, entry: LocalRepository) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `user`
[INFO] [stderr]   --> src/remote.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn user(&self) -> &str {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.13s
[INFO] running `"docker" "inspect" "a4dbf8701985636f4a14f5814bd072f4f31f1cd4e0f2781bba1a64e51d8e8960"`
[INFO] running `"docker" "rm" "-f" "a4dbf8701985636f4a14f5814bd072f4f31f1cd4e0f2781bba1a64e51d8e8960"`
[INFO] [stdout] a4dbf8701985636f4a14f5814bd072f4f31f1cd4e0f2781bba1a64e51d8e8960