[INFO] cloning repository https://github.com/mopemope/rrc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mopemope/rrc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmopemope%2Frrc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmopemope%2Frrc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2e6258d59dea72ef9dcf4146556cfa3ace704522
[INFO] checking mopemope/rrc against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmopemope%2Frrc" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mopemope/rrc on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mopemope/rrc
[INFO] finished tweaking git repo https://github.com/mopemope/rrc
[INFO] tweaked toml for git repo https://github.com/mopemope/rrc written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mopemope/rrc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f032708234ae99b1984220dbda7ff6004bac5d953e43be2296edb435d0376b37
[INFO] running `Command { std: "docker" "start" "-a" "f032708234ae99b1984220dbda7ff6004bac5d953e43be2296edb435d0376b37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f032708234ae99b1984220dbda7ff6004bac5d953e43be2296edb435d0376b37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f032708234ae99b1984220dbda7ff6004bac5d953e43be2296edb435d0376b37", kill_on_drop: false }`
[INFO] [stdout] f032708234ae99b1984220dbda7ff6004bac5d953e43be2296edb435d0376b37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 672c76055b23d44d04ed229dc31d39ed19af8094d4c865ccc0a04deebba906a4
[INFO] running `Command { std: "docker" "start" "-a" "672c76055b23d44d04ed229dc31d39ed19af8094d4c865ccc0a04deebba906a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]     Checking value-bag v1.4.1
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]     Checking waker-fn v1.1.1
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]     Checking parking v2.1.1
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling rustix v0.37.24
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]     Checking atomic-waker v1.1.2
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling rustix v0.38.18
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking async-lock v2.8.0
[INFO] [stderr]     Checking async-task v4.4.1
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking piper v0.2.1
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking regex-syntax v0.8.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.10
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking hashbrown v0.14.1
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking termcolor v1.3.0
[INFO] [stderr]     Checking winnow v0.5.16
[INFO] [stderr]     Checking option-ext v0.2.0
[INFO] [stderr]     Checking os_str_bytes v6.5.1
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking percent-encoding v2.3.0
[INFO] [stderr]     Checking idna v0.4.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking form_urlencoded v1.2.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking indexmap v2.0.2
[INFO] [stderr]     Checking textwrap v0.16.0
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking concurrent-queue v2.3.0
[INFO] [stderr]     Checking url v2.4.1
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]     Checking dirs v5.0.1
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stderr]     Checking async-executor v1.5.4
[INFO] [stderr]     Checking blocking v1.4.1
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking toml_datetime v0.6.3
[INFO] [stderr]     Checking serde_spanned v0.6.3
[INFO] [stderr]     Checking regex-automata v0.4.1
[INFO] [stderr]     Checking toml_edit v0.20.2
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking async-global-executor v2.3.1
[INFO] [stderr]     Checking async-std v1.12.0
[INFO] [stderr]     Checking toml v0.8.2
[INFO] [stderr]     Checking regex v1.10.0
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]     Checking rrc v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/config.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::default::Default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/remote.rs:200:9
[INFO] [stdout]     |
[INFO] [stdout] 200 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Default` is imported redundantly
[INFO] [stdout]  --> src/config.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::default::Default;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Default` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_str` is never used
[INFO] [stdout]   --> src/local.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl LocalRepository {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] 20 |     pub fn as_str(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `len`, `clear`, and `append` are never used
[INFO] [stdout]    --> src/local.rs:316:12
[INFO] [stdout]     |
[INFO] [stdout] 314 | impl FuzzyVec {
[INFO] [stdout]     | ------------- associated items in this implementation
[INFO] [stdout] 315 |     /// Creates a `FuzzyVec`.
[INFO] [stdout] 316 |     pub fn new() -> FuzzyVec {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 329 |     pub fn len(&self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 334 |     pub fn clear(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 339 |     pub fn append(&mut self, entry: LocalRepository) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `user` is never used
[INFO] [stdout]   --> src/remote.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl SSHPath {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 27 |     pub fn user(&self) -> &str {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `host` is never read
[INFO] [stdout]   --> src/vcs/mod.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct VCSOption {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub host: Option<String>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VCSOption` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/local.rs:402:9
[INFO] [stdout]     |
[INFO] [stdout] 402 |         env_logger::try_init();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 402 |         let _ = env_logger::try_init();
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_str` is never used
[INFO] [stdout]   --> src/local.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl LocalRepository {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] 20 |     pub fn as_str(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `len`, `clear`, and `append` are never used
[INFO] [stdout]    --> src/local.rs:316:12
[INFO] [stdout]     |
[INFO] [stdout] 314 | impl FuzzyVec {
[INFO] [stdout]     | ------------- associated items in this implementation
[INFO] [stdout] 315 |     /// Creates a `FuzzyVec`.
[INFO] [stdout] 316 |     pub fn new() -> FuzzyVec {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 329 |     pub fn len(&self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 334 |     pub fn clear(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 339 |     pub fn append(&mut self, entry: LocalRepository) {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `user` is never used
[INFO] [stdout]   --> src/remote.rs:27:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl SSHPath {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 27 |     pub fn user(&self) -> &str {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `host` is never read
[INFO] [stdout]   --> src/vcs/mod.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct VCSOption {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 12 |     pub host: Option<String>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VCSOption` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.19s
[INFO] running `Command { std: "docker" "inspect" "672c76055b23d44d04ed229dc31d39ed19af8094d4c865ccc0a04deebba906a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "672c76055b23d44d04ed229dc31d39ed19af8094d4c865ccc0a04deebba906a4", kill_on_drop: false }`
[INFO] [stdout] 672c76055b23d44d04ed229dc31d39ed19af8094d4c865ccc0a04deebba906a4