[INFO] cloning repository https://github.com/solidiquis/sarnath
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/solidiquis/sarnath" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsolidiquis%2Fsarnath", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsolidiquis%2Fsarnath'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ecef27a18f186cca94470bd89f77dfa860b77a6
[INFO] checking solidiquis/sarnath against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsolidiquis%2Fsarnath" "/workspace/builds/worker-25/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-25/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/solidiquis/sarnath on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/solidiquis/sarnath
[INFO] finished tweaking git repo https://github.com/solidiquis/sarnath
[INFO] tweaked toml for git repo https://github.com/solidiquis/sarnath written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] crate git repo https://github.com/solidiquis/sarnath already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d377f9af34094d63ff50dcbd8966b97440d13658b43283ab6437fe099298668d
[INFO] running `Command { std: "docker" "start" "-a" "d377f9af34094d63ff50dcbd8966b97440d13658b43283ab6437fe099298668d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d377f9af34094d63ff50dcbd8966b97440d13658b43283ab6437fe099298668d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d377f9af34094d63ff50dcbd8966b97440d13658b43283ab6437fe099298668d", kill_on_drop: false }`
[INFO] [stdout] d377f9af34094d63ff50dcbd8966b97440d13658b43283ab6437fe099298668d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92434d586eb2ed089c3373c4060fbf48d9a38bb2b51f61e7dfc3ab559d259729
[INFO] running `Command { std: "docker" "start" "-a" "92434d586eb2ed089c3373c4060fbf48d9a38bb2b51f61e7dfc3ab559d259729", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking sarnath v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `DirEntry`
[INFO] [stdout]  --> src/tests.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fs::{self, DirEntry};
[INFO] [stdout]   |                     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/tests.rs:107:20
[INFO] [stdout]     |
[INFO] [stdout] 107 |     mktmpdir(uid, |p :&str| {
[INFO] [stdout]     |                    ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/fswatch.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | /     walk(Path::new(dirpath), &mut |dir: &fs::DirEntry| {
[INFO] [stdout] 48 | |         let md = dir.metadata().unwrap();
[INFO] [stdout] 49 | |
[INFO] [stdout] 50 | |         mod_times.insert(
[INFO] [stdout] ...  |
[INFO] [stdout] 53 | |         );
[INFO] [stdout] 54 | |     });
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/fswatch.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | /     walk(Path::new(dirpath), &mut |dir: &fs::DirEntry| {
[INFO] [stdout] 48 | |         let md = dir.metadata().unwrap();
[INFO] [stdout] 49 | |
[INFO] [stdout] 50 | |         mod_times.insert(
[INFO] [stdout] ...  |
[INFO] [stdout] 53 | |         );
[INFO] [stdout] 54 | |     });
[INFO] [stdout]    | |_______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/tests.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         fs::File::create(file);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/tests.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fs::remove_dir_all(&path);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/tests.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fs::remove_dir_all(path);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/tests.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         fs::File::create(format!("./{}/new.txt", p));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 29s
[INFO] running `Command { std: "docker" "inspect" "92434d586eb2ed089c3373c4060fbf48d9a38bb2b51f61e7dfc3ab559d259729", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92434d586eb2ed089c3373c4060fbf48d9a38bb2b51f61e7dfc3ab559d259729", kill_on_drop: false }`
[INFO] [stdout] 92434d586eb2ed089c3373c4060fbf48d9a38bb2b51f61e7dfc3ab559d259729