[INFO] updating cached repository https://github.com/cuichenli/dot-sync
[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] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 060c3751629668260fed280ba515f2804072c3d6
[INFO] checking cuichenli/dot-sync against master#ba72b15666b2491415aec703a02c2364fe5e2790 for pr-71140
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcuichenli%2Fdot-sync" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cuichenli/dot-sync on toolchain ba72b15666b2491415aec703a02c2364fe5e2790
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/cuichenli/dot-sync
[INFO] finished tweaking git repo https://github.com/cuichenli/dot-sync
[INFO] tweaked toml for git repo https://github.com/cuichenli/dot-sync written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+ba72b15666b2491415aec703a02c2364fe5e2790" "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] db9814b92af14cb98936c7d240027d8494833b50c911b5a0079b0e41686faab3
[INFO] running `"docker" "start" "-a" "db9814b92af14cb98936c7d240027d8494833b50c911b5a0079b0e41686faab3"`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]     Checking fragile v0.3.0
[INFO] [stderr]     Checking downcast v0.10.0
[INFO] [stderr]     Checking float-cmp v0.6.0
[INFO] [stderr]     Checking predicates v1.0.4
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling mockall_derive v0.6.0
[INFO] [stderr]     Checking mockall v0.6.0
[INFO] [stderr]     Checking serde v1.0.106
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking dot-sync v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]  --> src/git_commands.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     use std::io;
[INFO] [stderr]   |         ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/cli.rs:218:30
[INFO] [stderr]     |
[INFO] [stderr] 218 |             .unwrap_or_else(|e| panic!("INTENDED PANIC"));
[INFO] [stderr]     |                              ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `matches`
[INFO] [stderr]    --> src/cli.rs:216:13
[INFO] [stderr]     |
[INFO] [stderr] 216 |         let matches = cli
[INFO] [stderr]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `program`
[INFO] [stderr]   --> src/git_commands.rs:21:20
[INFO] [stderr]    |
[INFO] [stderr] 21 |         pub fn new(program: &str) -> Self {
[INFO] [stderr]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_program`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arg`
[INFO] [stderr]   --> src/git_commands.rs:24:27
[INFO] [stderr]    |
[INFO] [stderr] 24 |         pub fn arg(&self, arg: &str) -> &Self {
[INFO] [stderr]    |                           ^^^ help: if this is intentional, prefix it with an underscore: `_arg`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `str`
[INFO] [stderr]    --> src/utils.rs:114:25
[INFO] [stderr]     |
[INFO] [stderr] 114 |             .returning(|str| Some(OsString::from("home")));
[INFO] [stderr]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `str`
[INFO] [stderr]    --> src/utils.rs:122:59
[INFO] [stderr]     |
[INFO] [stderr] 122 |         ctx.expect().times(1).with(eq("HOME")).returning(|str| None);
[INFO] [stderr]     |                                                           ^^^ help: if this is intentional, prefix it with an underscore: `_str`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/utils.rs:133:25
[INFO] [stderr]     |
[INFO] [stderr] 133 |             .returning(|x| Ok("repo_path=\"/home/path\"".as_bytes().to_vec()));
[INFO] [stderr]     |                         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/utils.rs:144:25
[INFO] [stderr]     |
[INFO] [stderr] 144 |             .returning(|x| Ok("repo_path:\"/home/path\"".as_bytes().to_vec()));
[INFO] [stderr]     |                         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]    --> src/utils.rs:155:25
[INFO] [stderr]     |
[INFO] [stderr] 155 |             .returning(|x| Err(String::from("Failed")));
[INFO] [stderr]     |                         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/utils.rs:13:23
[INFO] [stderr]    |
[INFO] [stderr] 13 |         pub fn var_os(key: &str) -> Option<OsString> {
[INFO] [stderr]    |                       ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]   --> src/utils.rs:21:21
[INFO] [stderr]    |
[INFO] [stderr] 21 |         pub fn read(file: String) -> Result<Vec<u8>, String> {
[INFO] [stderr]    |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/git_commands.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |         pub fn new() -> Output {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Command`
[INFO] [stderr]   --> src/git_commands.rs:18:16
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub struct Command {}
[INFO] [stderr]    |                ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/git_commands.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |         pub fn new(program: &str) -> Self {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `arg`
[INFO] [stderr]   --> src/git_commands.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |         pub fn arg(&self, arg: &str) -> &Self {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `output`
[INFO] [stderr]   --> src/git_commands.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |         pub fn output(&self) -> Result<Output, Box<dyn Error>> {
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `var_os`
[INFO] [stderr]   --> src/utils.rs:13:16
[INFO] [stderr]    |
[INFO] [stderr] 13 |         pub fn var_os(key: &str) -> Option<OsString> {
[INFO] [stderr]    |                ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read`
[INFO] [stderr]   --> src/utils.rs:21:16
[INFO] [stderr]    |
[INFO] [stderr] 21 |         pub fn read(file: String) -> Result<Vec<u8>, String> {
[INFO] [stderr]    |                ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 19 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 04s
[INFO] running `"docker" "inspect" "db9814b92af14cb98936c7d240027d8494833b50c911b5a0079b0e41686faab3"`
[INFO] running `"docker" "rm" "-f" "db9814b92af14cb98936c7d240027d8494833b50c911b5a0079b0e41686faab3"`
[INFO] [stdout] db9814b92af14cb98936c7d240027d8494833b50c911b5a0079b0e41686faab3