[INFO] fetching crate gimic 0.1.33...
[INFO] checking gimic-0.1.33 against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] extracting crate gimic 0.1.33 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate gimic 0.1.33
[INFO] finished tweaking crates.io crate gimic 0.1.33
[INFO] tweaked toml for crates.io crate gimic 0.1.33 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate gimic 0.1.33 on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate gimic 0.1.33 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" "+a5689b034ad287112f709693384a37f1377eb9cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] be477c62b721fc31034d2b2669e4054f9b733c0120d20c53797ca43aaebae235
[INFO] running `Command { std: "docker" "start" "be477c62b721fc31034d2b2669e4054f9b733c0120d20c53797ca43aaebae235", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be477c62b721fc31034d2b2669e4054f9b733c0120d20c53797ca43aaebae235", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "be477c62b721fc31034d2b2669e4054f9b733c0120d20c53797ca43aaebae235" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be477c62b721fc31034d2b2669e4054f9b733c0120d20c53797ca43aaebae235", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "be477c62b721fc31034d2b2669e4054f9b733c0120d20c53797ca43aaebae235" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde v1.0.178
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]    Compiling serde_derive v1.0.178
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking hashbrown v0.14.0
[INFO] [stderr]     Checking unsafe-libyaml v0.2.9
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]     Checking aho-corasick v1.0.4
[INFO] [stderr]     Checking indexmap v2.0.0
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking regex-automata v0.3.6
[INFO] [stderr]     Checking serde_yaml v0.9.25
[INFO] [stderr]     Checking regex v1.9.3
[INFO] [stderr]     Checking gimic v0.1.33 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/gimic/gimic.rs:117:35
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn commit(&self, action:&str, idx:u32, gargs:Vec<&str>){
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `action`
[INFO] [stdout]    --> src/gimic/gimic.rs:122:24
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn checkout(&self, action:&str, idx:u32) {
[INFO] [stdout]     |                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_action`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gimic/gimic.rs:368:36
[INFO] [stdout]     |
[INFO] [stdout] 368 | pub fn skip_worktree(action: &str, mut current_dir: path::PathBuf, target: String){
[INFO] [stdout]     |                                    ----^^^^^^^^^^^
[INFO] [stdout]     |                                    |
[INFO] [stdout]     |                                    help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `version` and `fail_fast` are never read
[INFO] [stdout]   --> src/gimic/gimic.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct BaseConfig{
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 49 |     pub version: Option<u64>,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 50 |     pub repos: VecDeque<AlternateRepoConfig>,
[INFO] [stdout] 51 |     pub fail_fast: Option<bool>
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BaseConfig` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cache` and `overwrite_on_update` are never read
[INFO] [stdout]   --> src/gimic/gimic.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct AlternateRepoConfig{
[INFO] [stdout]    |            ------------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub cache: Option<String>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 64 |     pub keep_repo: Option<bool>,
[INFO] [stdout] 65 |     pub overwrite_on_update: Option<bool>
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AlternateRepoConfig` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `commit` is never used
[INFO] [stdout]    --> src/gimic/gimic.rs:117:8
[INFO] [stdout]     |
[INFO] [stdout]  68 | impl BaseConfig{
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 117 |     fn commit(&self, action:&str, idx:u32, gargs:Vec<&str>){
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `PathBuf`
[INFO] [stdout]    --> src/gimic/gimic.rs:359:30
[INFO] [stdout]     |
[INFO] [stdout] 359 |                 entries.push(path.into());
[INFO] [stdout]     |                              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 359 -                 entries.push(path.into());
[INFO] [stdout] 359 +                 entries.push(path);
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 359 -                 entries.push(path.into());
[INFO] [stdout] 359 +                 entries.push(<PathBuf as Into<_>>::into(path));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/gimic/gimic.rs:261:5
[INFO] [stdout]     |
[INFO] [stdout] 261 |     visit_dirs(current.as_path(),&mut  entries);
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 261 |     let _ = visit_dirs(current.as_path(),&mut  entries);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/gimic/gimic.rs:376:5
[INFO] [stdout]     |
[INFO] [stdout] 376 |     visit_dirs(target_path.as_path(),&mut  entries);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 376 |     let _ = visit_dirs(target_path.as_path(),&mut  entries);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idx`
[INFO] [stdout]    --> src/gimic/gimic.rs:117:35
[INFO] [stdout]     |
[INFO] [stdout] 117 |     fn commit(&self, action:&str, idx:u32, gargs:Vec<&str>){
[INFO] [stdout]     |                                   ^^^ help: if this is intentional, prefix it with an underscore: `_idx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `action`
[INFO] [stdout]    --> src/gimic/gimic.rs:122:24
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn checkout(&self, action:&str, idx:u32) {
[INFO] [stdout]     |                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_action`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gimic` (bin "gimic") due to 1 previous error; 8 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/gimic/gimic.rs:368:36
[INFO] [stdout]     |
[INFO] [stdout] 368 | pub fn skip_worktree(action: &str, mut current_dir: path::PathBuf, target: String){
[INFO] [stdout]     |                                    ----^^^^^^^^^^^
[INFO] [stdout]     |                                    |
[INFO] [stdout]     |                                    help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `version` and `fail_fast` are never read
[INFO] [stdout]   --> src/gimic/gimic.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct BaseConfig{
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 49 |     pub version: Option<u64>,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 50 |     pub repos: VecDeque<AlternateRepoConfig>,
[INFO] [stdout] 51 |     pub fail_fast: Option<bool>
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BaseConfig` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cache` and `overwrite_on_update` are never read
[INFO] [stdout]   --> src/gimic/gimic.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct AlternateRepoConfig{
[INFO] [stdout]    |            ------------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub cache: Option<String>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 64 |     pub keep_repo: Option<bool>,
[INFO] [stdout] 65 |     pub overwrite_on_update: Option<bool>
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AlternateRepoConfig` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `commit` is never used
[INFO] [stdout]    --> src/gimic/gimic.rs:117:8
[INFO] [stdout]     |
[INFO] [stdout]  68 | impl BaseConfig{
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 117 |     fn commit(&self, action:&str, idx:u32, gargs:Vec<&str>){
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `PathBuf`
[INFO] [stdout]    --> src/gimic/gimic.rs:359:30
[INFO] [stdout]     |
[INFO] [stdout] 359 |                 entries.push(path.into());
[INFO] [stdout]     |                              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]     = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 359 -                 entries.push(path.into());
[INFO] [stdout] 359 +                 entries.push(path);
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 359 -                 entries.push(path.into());
[INFO] [stdout] 359 +                 entries.push(<PathBuf as Into<_>>::into(path));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/gimic/gimic.rs:261:5
[INFO] [stdout]     |
[INFO] [stdout] 261 |     visit_dirs(current.as_path(),&mut  entries);
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 261 |     let _ = visit_dirs(current.as_path(),&mut  entries);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/gimic/gimic.rs:376:5
[INFO] [stdout]     |
[INFO] [stdout] 376 |     visit_dirs(target_path.as_path(),&mut  entries);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 376 |     let _ = visit_dirs(target_path.as_path(),&mut  entries);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/gimic/gimic.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         visit_dirs(current.as_path(),&mut  entries);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let _ = visit_dirs(current.as_path(),&mut  entries);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gimic` (bin "gimic" test) due to 1 previous error; 9 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "be477c62b721fc31034d2b2669e4054f9b733c0120d20c53797ca43aaebae235", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be477c62b721fc31034d2b2669e4054f9b733c0120d20c53797ca43aaebae235", kill_on_drop: false }`
[INFO] [stdout] be477c62b721fc31034d2b2669e4054f9b733c0120d20c53797ca43aaebae235
