[INFO] updating cached repository https://github.com/thunderseethe/mira
[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] 7c7ca1b3178c4ea9d477d097a7b334c04a2089a6
[INFO] checking thunderseethe/mira against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthunderseethe%2Fmira" "/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/thunderseethe/mira on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/thunderseethe/mira
[INFO] finished tweaking git repo https://github.com/thunderseethe/mira
[INFO] tweaked toml for git repo https://github.com/thunderseethe/mira written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/thunderseethe/mira already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "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" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "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] 2fca6397f8715d26f58968c1b20d1f219433a374a193ed36f013b0907580e7be
[INFO] running `"docker" "start" "-a" "2fca6397f8715d26f58968c1b20d1f219433a374a193ed36f013b0907580e7be"`
[INFO] [stderr]     Checking errno v0.2.4
[INFO] [stderr]     Checking symare v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `OsStr`
[INFO] [stderr]  --> src/tty.rs:4:22
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::ffi::{CStr, OsStr};
[INFO] [stderr]   |                      ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `OsStr`
[INFO] [stderr]  --> src/tty.rs:4:22
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::ffi::{CStr, OsStr};
[INFO] [stderr]   |                      ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/tty.rs:138:44
[INFO] [stderr]     |
[INFO] [stderr] 138 |     let mut entry: libc::passwd = unsafe { ::std::mem::uninitialized() };
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/tty.rs:138:44
[INFO] [stderr]     |
[INFO] [stderr] 138 |     let mut entry: libc::passwd = unsafe { ::std::mem::uninitialized() };
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::os::unix::process::CommandExt::before_exec': should be unsafe, use `pre_exec` instead
[INFO] [stderr]    --> src/tty.rs:215:13
[INFO] [stderr]     |
[INFO] [stderr] 215 |     builder.before_exec(move || {
[INFO] [stderr]     |             ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::os::unix::process::CommandExt::before_exec': should be unsafe, use `pre_exec` instead
[INFO] [stderr]    --> src/tty.rs:215:13
[INFO] [stderr]     |
[INFO] [stderr] 215 |     builder.before_exec(move || {
[INFO] [stderr]     |             ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]   --> src/main.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let mut buf: [u8; 1024] = [0; 1024];
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_buf`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `read_count`
[INFO] [stderr]   --> src/main.rs:57:16
[INFO] [stderr]    |
[INFO] [stderr] 57 |             Ok(read_count) => {
[INFO] [stderr]    |                ^^^^^^^^^^ help: consider prefixing with an underscore: `_read_count`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `buf`
[INFO] [stderr]   --> src/main.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let mut buf: [u8; 1024] = [0; 1024];
[INFO] [stderr]    |             ^^^ help: consider prefixing with an underscore: `_buf`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `read_count`
[INFO] [stderr]   --> src/main.rs:57:16
[INFO] [stderr]    |
[INFO] [stderr] 57 |             Ok(read_count) => {
[INFO] [stderr]    |                ^^^^^^^^^^ help: consider prefixing with an underscore: `_read_count`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let mut buf: [u8; 1024] = [0; 1024];
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:52:9
[INFO] [stderr]    |
[INFO] [stderr] 52 |     let mut buf: [u8; 1024] = [0; 1024];
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `process_should_exit`
[INFO] [stderr]   --> src/tty.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn process_should_exit() -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new_with_args`
[INFO] [stderr]   --> src/data.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | /     pub fn new_with_args<S>(program: S, args: Vec<String>) -> Shell<'a>
[INFO] [stderr] 20 | |         where S: Into<Cow<'a, str>>
[INFO] [stderr] 21 | |     {
[INFO] [stderr] 22 | |         Shell {
[INFO] [stderr] ...  |
[INFO] [stderr] 25 | |         }
[INFO] [stderr] 26 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_window`
[INFO] [stderr]   --> src/main.rs:73:4
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn test_window() {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `process_should_exit`
[INFO] [stderr]   --> src/tty.rs:48:8
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn process_should_exit() -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new_with_args`
[INFO] [stderr]   --> src/data.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | /     pub fn new_with_args<S>(program: S, args: Vec<String>) -> Shell<'a>
[INFO] [stderr] 20 | |         where S: Into<Cow<'a, str>>
[INFO] [stderr] 21 | |     {
[INFO] [stderr] 22 | |         Shell {
[INFO] [stderr] ...  |
[INFO] [stderr] 25 | |         }
[INFO] [stderr] 26 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_window`
[INFO] [stderr]   --> src/main.rs:73:4
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn test_window() {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.57s
[INFO] running `"docker" "inspect" "2fca6397f8715d26f58968c1b20d1f219433a374a193ed36f013b0907580e7be"`
[INFO] running `"docker" "rm" "-f" "2fca6397f8715d26f58968c1b20d1f219433a374a193ed36f013b0907580e7be"`
[INFO] [stdout] 2fca6397f8715d26f58968c1b20d1f219433a374a193ed36f013b0907580e7be