[INFO] cloning repository https://github.com/mkatychev/aloxite
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mkatychev/aloxite" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmkatychev%2Faloxite", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmkatychev%2Faloxite'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3b572a92e39db8cf2e5ead3062b05df3e352e27e
[INFO] checking mkatychev/aloxite against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmkatychev%2Faloxite" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mkatychev/aloxite on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/mkatychev/aloxite
[INFO] finished tweaking git repo https://github.com/mkatychev/aloxite
[INFO] tweaked toml for git repo https://github.com/mkatychev/aloxite written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/mkatychev/aloxite already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e935c2a144c306e5462835cf8c6170d0081b0abd0d27f9a70af0a8727932cf1
[INFO] running `Command { std: "docker" "start" "-a" "3e935c2a144c306e5462835cf8c6170d0081b0abd0d27f9a70af0a8727932cf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e935c2a144c306e5462835cf8c6170d0081b0abd0d27f9a70af0a8727932cf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e935c2a144c306e5462835cf8c6170d0081b0abd0d27f9a70af0a8727932cf1", kill_on_drop: false }`
[INFO] [stdout] 3e935c2a144c306e5462835cf8c6170d0081b0abd0d27f9a70af0a8727932cf1
[INFO] running `Command { std: "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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 523d28482189f1e895a8d42a3b30aa776a7d463e35e324b19549841e17d17889
[INFO] running `Command { std: "docker" "start" "-a" "523d28482189f1e895a8d42a3b30aa776a7d463e35e324b19549841e17d17889", kill_on_drop: false }`
[INFO] [stderr]     Checking argparse v0.2.2
[INFO] [stderr]     Checking aloxite v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Store`
[INFO] [stdout]  --> src/args.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use argparse::{ArgumentParser, Store, StoreTrue}; // TODO replace with clap-rs
[INFO] [stdout]   |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/lib.rs:42:31
[INFO] [stdout]    |
[INFO] [stdout] 42 |                     .map_err(|e| "Problem opening file")?;
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Store`
[INFO] [stdout]  --> src/args.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use argparse::{ArgumentParser, Store, StoreTrue}; // TODO replace with clap-rs
[INFO] [stdout]   |                                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/lib.rs:45:19
[INFO] [stdout]    |
[INFO] [stdout] 45 |         .map_err(|e| "Problem reading file")?;
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/search.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut iter = match trigger.len() {
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_args`
[INFO] [stdout]  --> src/args.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn parse_args() {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reset`
[INFO] [stdout]   --> src/search.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn reset(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]   --> src/search.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn next(&mut self) -> Option<char> { self.iter.next() }
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/lib.rs:42:31
[INFO] [stdout]    |
[INFO] [stdout] 42 |                     .map_err(|e| "Problem opening file")?;
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/lib.rs:45:19
[INFO] [stdout]    |
[INFO] [stdout] 45 |         .map_err(|e| "Problem reading file")?;
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/search.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let mut iter = match trigger.len() {
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_args`
[INFO] [stdout]  --> src/args.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn parse_args() {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reset`
[INFO] [stdout]   --> src/search.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn reset(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]   --> src/search.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn next(&mut self) -> Option<char> { self.iter.next() }
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "523d28482189f1e895a8d42a3b30aa776a7d463e35e324b19549841e17d17889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "523d28482189f1e895a8d42a3b30aa776a7d463e35e324b19549841e17d17889", kill_on_drop: false }`
[INFO] [stdout] 523d28482189f1e895a8d42a3b30aa776a7d463e35e324b19549841e17d17889