[INFO] updating cached repository https://github.com/ahoZiorce/hostman
[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] c0525018343de30796ffcc32f630dcecfe43ed8f
[INFO] checking ahoZiorce/hostman against try#f149601db42efe10ece8b284ab681fd4a6fcb89c for pr-68766
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FahoZiorce%2Fhostman" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ahoZiorce/hostman on toolchain f149601db42efe10ece8b284ab681fd4a6fcb89c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ahoZiorce/hostman
[INFO] finished tweaking git repo https://github.com/ahoZiorce/hostman
[INFO] tweaked toml for git repo https://github.com/ahoZiorce/hostman written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/ahoZiorce/hostman already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "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] f27cb665cdeae6c7de90b4f084eecce1a3590db01469b72a14d1c37ef69b5cd0
[INFO] running `"docker" "start" "-a" "f27cb665cdeae6c7de90b4f084eecce1a3590db01469b72a14d1c37ef69b5cd0"`
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking reqwest v0.9.24
[INFO] [stderr]     Checking hostman v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `crate::hostsfile::Host`
[INFO] [stderr]  --> src/apply.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::hostsfile::Host;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/apply.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `url`
[INFO] [stderr]   --> src/apply.rs:24:19
[INFO] [stderr]    |
[INFO] [stderr] 24 |         if let Ok(url) = Url::parse(line) {
[INFO] [stderr]    |                   ^^^ help: consider prefixing with an underscore: `_url`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/apply.rs:42:17
[INFO] [stderr]    |
[INFO] [stderr] 42 |             let mut remote_host = HostsFile::from(res.text().unwrap());
[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/hostsfile.rs:68:13
[INFO] [stderr]    |
[INFO] [stderr] 68 |         let mut lines = content.split("\n");
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `change_all_redirects`
[INFO] [stderr]   --> src/hostsfile.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn change_all_redirects(&mut self, change: String) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/apply.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     file.read_to_string(&mut content);
[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/apply.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |             file.write_all(render.as_bytes());
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::hostsfile::Host`
[INFO] [stderr]  --> src/apply.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::hostsfile::Host;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/apply.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `url`
[INFO] [stderr]   --> src/apply.rs:24:19
[INFO] [stderr]    |
[INFO] [stderr] 24 |         if let Ok(url) = Url::parse(line) {
[INFO] [stderr]    |                   ^^^ help: consider prefixing with an underscore: `_url`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/apply.rs:42:17
[INFO] [stderr]    |
[INFO] [stderr] 42 |             let mut remote_host = HostsFile::from(res.text().unwrap());
[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/hostsfile.rs:68:13
[INFO] [stderr]    |
[INFO] [stderr] 68 |         let mut lines = content.split("\n");
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `change_all_redirects`
[INFO] [stderr]   --> src/hostsfile.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn change_all_redirects(&mut self, change: String) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/apply.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     file.read_to_string(&mut content);
[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/apply.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |             file.write_all(render.as_bytes());
[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 17.49s
[INFO] running `"docker" "inspect" "f27cb665cdeae6c7de90b4f084eecce1a3590db01469b72a14d1c37ef69b5cd0"`
[INFO] running `"docker" "rm" "-f" "f27cb665cdeae6c7de90b4f084eecce1a3590db01469b72a14d1c37ef69b5cd0"`
[INFO] [stdout] f27cb665cdeae6c7de90b4f084eecce1a3590db01469b72a14d1c37ef69b5cd0