[INFO] fetching crate finde-rs 0.1.4...
[INFO] checking finde-rs-0.1.4 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate finde-rs 0.1.4 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate finde-rs 0.1.4
[INFO] finished tweaking crates.io crate finde-rs 0.1.4
[INFO] tweaked toml for crates.io crate finde-rs 0.1.4 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate finde-rs 0.1.4 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate finde-rs 0.1.4 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 922e86cef919609f4b497781289459d633dc151070dff2aacda8edf513e2c124
[INFO] running `Command { std: "docker" "start" "-a" "922e86cef919609f4b497781289459d633dc151070dff2aacda8edf513e2c124", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "922e86cef919609f4b497781289459d633dc151070dff2aacda8edf513e2c124", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "922e86cef919609f4b497781289459d633dc151070dff2aacda8edf513e2c124", kill_on_drop: false }`
[INFO] [stdout] 922e86cef919609f4b497781289459d633dc151070dff2aacda8edf513e2c124
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9720cdfd9f02e8209828e24700786c017ae0733d72a3e185b05a38509b32ea26
[INFO] running `Command { std: "docker" "start" "-a" "9720cdfd9f02e8209828e24700786c017ae0733d72a3e185b05a38509b32ea26", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
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[INFO] [stderr]     Checking atomicwrites v0.2.5
[INFO] [stderr]     Checking tantivy-query-grammar v0.11.0
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.3
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[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling structopt-derive v0.4.4
[INFO] [stderr]    Compiling futures-macro v0.3.4
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[INFO] [stderr]     Checking structopt v0.3.11
[INFO] [stderr]     Checking clap-verbosity-flag v0.3.1
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[INFO] [stderr]     Checking futures v0.3.4
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[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking tantivy v0.11.3
[INFO] [stderr]     Checking finde-rs v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `verbose` is never read
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct Opt {
[INFO] [stdout]    |        --- field in this struct
[INFO] [stdout] 23 |     #[structopt(flatten)]
[INFO] [stdout] 24 |     verbose: clap_verbosity_flag::Verbosity,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Opt` 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: method `is_empty` is never used
[INFO] [stdout]  --> src/haslen.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait HasLen: std::marker::Send + 'static {
[INFO] [stdout]   |           ------ method in this trait
[INFO] [stdout] 4 |     fn len(&self) -> usize;
[INFO] [stdout] 5 |     fn is_empty(&self) -> bool {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | /     /// Root path to crawl from
[INFO] [stdout] 27 | |     #[structopt(short, long, default_value = constants::DEFAULT_ROOT)]
[INFO] [stdout] 28 | |     path: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | /     /// Root path to crawl from
[INFO] [stdout] 31 | |     #[structopt(short="I", long, default_value = constants::INDEX_DIR)]
[INFO] [stdout] 32 | |     index_dir: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `finde-rs` (bin "finde-rs") due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `verbose` is never read
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct Opt {
[INFO] [stdout]    |        --- field in this struct
[INFO] [stdout] 23 |     #[structopt(flatten)]
[INFO] [stdout] 24 |     verbose: clap_verbosity_flag::Verbosity,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Opt` 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: method `is_empty` is never used
[INFO] [stdout]  --> src/haslen.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait HasLen: std::marker::Send + 'static {
[INFO] [stdout]   |           ------ method in this trait
[INFO] [stdout] 4 |     fn len(&self) -> usize;
[INFO] [stdout] 5 |     fn is_empty(&self) -> bool {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | /     /// Root path to crawl from
[INFO] [stdout] 27 | |     #[structopt(short, long, default_value = constants::DEFAULT_ROOT)]
[INFO] [stdout] 28 | |     path: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | /     /// Root path to crawl from
[INFO] [stdout] 31 | |     #[structopt(short="I", long, default_value = constants::INDEX_DIR)]
[INFO] [stdout] 32 | |     index_dir: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `finde-rs` (bin "finde-rs" test) due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "9720cdfd9f02e8209828e24700786c017ae0733d72a3e185b05a38509b32ea26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9720cdfd9f02e8209828e24700786c017ae0733d72a3e185b05a38509b32ea26", kill_on_drop: false }`
[INFO] [stdout] 9720cdfd9f02e8209828e24700786c017ae0733d72a3e185b05a38509b32ea26
