[INFO] fetching crate finde-rs 0.1.4...
[INFO] checking finde-rs-0.1.4 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate finde-rs 0.1.4 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate finde-rs 0.1.4 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-0-tc1/source/Cargo.toml
[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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hermit-abi v0.1.8
[INFO] [stderr]   Downloaded tantivy-query-grammar v0.11.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.9
[INFO] [stderr]   Downloaded murmurhash32 v0.2.0
[INFO] [stderr]   Downloaded simple_logger v1.6.0
[INFO] [stderr]   Downloaded clap-verbosity-flag v0.3.1
[INFO] [stderr]   Downloaded fail v0.3.0
[INFO] [stderr]   Downloaded proc-macro-error v0.4.11
[INFO] [stderr]   Downloaded proc-macro-error-attr v0.4.11
[INFO] [stderr]   Downloaded partial_application v0.2.0
[INFO] [stderr]   Downloaded anyhow v1.0.26
[INFO] [stderr]   Downloaded backtrace v0.3.45
[INFO] [stderr]   Downloaded htmlescape v0.3.1
[INFO] [stderr]   Downloaded crossbeam-channel v0.4.2
[INFO] [stderr]   Downloaded chrono v0.4.11
[INFO] [stderr]   Downloaded mio v0.6.21
[INFO] [stderr]   Downloaded regex-syntax v0.4.2
[INFO] [stderr]   Downloaded nix v0.14.1
[INFO] [stderr]   Downloaded serde_json v1.0.48
[INFO] [stderr]   Downloaded syn v1.0.16
[INFO] [stderr]   Downloaded structopt-derive v0.4.4
[INFO] [stderr]   Downloaded structopt v0.3.11
[INFO] [stderr]   Downloaded regex-syntax v0.6.16
[INFO] [stderr]   Downloaded num-integer v0.1.42
[INFO] [stderr]   Downloaded tantivy v0.11.3
[INFO] [stderr]   Downloaded downcast-rs v1.1.1
[INFO] [stderr]   Downloaded futures-macro v0.3.4
[INFO] [stderr]   Downloaded libc v0.2.67
[INFO] [stderr]   Downloaded proc-macro-hack v0.5.11
[INFO] [stderr]   Downloaded filetime v0.2.8
[INFO] [stderr]   Downloaded inotify v0.7.0
[INFO] [stderr]   Downloaded owned-read v0.4.1
[INFO] [stderr]   Downloaded backtrace-sys v0.1.33
[INFO] [stderr]   Downloaded bitpacking v0.8.2
[INFO] [stderr]   Downloaded once_cell v1.3.1
[INFO] [stderr]   Downloaded crossbeam v0.7.3
[INFO] [stderr]   Downloaded futures-executor v0.3.4
[INFO] [stderr]   Downloaded inotify-sys v0.1.3
[INFO] [stderr]   Downloaded smallvec v1.2.0
[INFO] [stderr]   Downloaded threadpool v1.7.1
[INFO] [stderr]   Downloaded winapi-util v0.1.3
[INFO] [stderr]   Downloaded atomicwrites v0.2.5
[INFO] [stderr]   Downloaded pin-utils v0.1.0-alpha.4
[INFO] [stderr]   Downloaded lazycell v1.2.1
[INFO] [stderr]   Downloaded crossbeam-deque v0.7.3
[INFO] [stderr]   Downloaded census v0.4.0
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.3
[INFO] [stderr]   Downloaded snap v0.2.5
[INFO] [stderr]   Downloaded tantivy-fst v0.1.0
[INFO] [stderr]   Downloaded fst v0.3.5
[INFO] [stderr]   Downloaded rust-stemmers v1.2.0
[INFO] [stderr]   Downloaded levenshtein_automata v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 017fb94e02d5bcee8798bdeb3816afc8bf0ed8afecba429c9b3b544e512d0578
[INFO] running `Command { std: "docker" "start" "-a" "017fb94e02d5bcee8798bdeb3816afc8bf0ed8afecba429c9b3b544e512d0578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "017fb94e02d5bcee8798bdeb3816afc8bf0ed8afecba429c9b3b544e512d0578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "017fb94e02d5bcee8798bdeb3816afc8bf0ed8afecba429c9b3b544e512d0578", kill_on_drop: false }`
[INFO] [stdout] 017fb94e02d5bcee8798bdeb3816afc8bf0ed8afecba429c9b3b544e512d0578
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fdd0c5ccd31b5b8514f7df660b28a2a17dc752047d2ee81e5534f980a71fc8c0
[INFO] running `Command { std: "docker" "start" "-a" "fdd0c5ccd31b5b8514f7df660b28a2a17dc752047d2ee81e5534f980a71fc8c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.11
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling proc-macro-error v0.4.11
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking futures-io v0.3.4
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking futures-task v0.3.4
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking fst v0.3.5
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.33
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking ascii v0.9.3
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking levenshtein_automata v0.1.1
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]     Checking inotify v0.7.0
[INFO] [stderr]     Checking filetime v0.2.8
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking regex-syntax v0.4.2
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]    Compiling anyhow v1.0.26
[INFO] [stderr]     Checking regex-syntax v0.6.16
[INFO] [stderr]     Checking bitpacking v0.8.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking owned-read v0.4.1
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking murmurhash32 v0.2.0
[INFO] [stderr]     Checking notify v4.0.15
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking fail v0.3.0
[INFO] [stderr]     Checking snap v0.2.5
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking htmlescape v0.3.1
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking backtrace v0.3.45
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking census v0.4.0
[INFO] [stderr]     Checking smallvec v1.2.0
[INFO] [stderr]     Checking downcast-rs v1.1.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking once_cell v1.3.1
[INFO] [stderr]    Compiling cargo-husky v1.5.0
[INFO] [stderr]     Checking tantivy-fst v0.1.0
[INFO] [stderr]     Checking threadpool v1.7.1
[INFO] [stderr]     Checking partial_application v0.2.0
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking simple_logger v1.6.0
[INFO] [stderr]     Checking atomicwrites v0.2.5
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]     Checking tantivy-query-grammar v0.11.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling structopt-derive v0.4.4
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]     Checking failure v0.1.7
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking structopt v0.3.11
[INFO] [stderr]     Checking clap-verbosity-flag v0.3.1
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking rust-stemmers v1.2.0
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking serde_json v1.0.48
[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)]` 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] 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)]` 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] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized] target(s) in 24.02s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: snap v0.2.5
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "fdd0c5ccd31b5b8514f7df660b28a2a17dc752047d2ee81e5534f980a71fc8c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdd0c5ccd31b5b8514f7df660b28a2a17dc752047d2ee81e5534f980a71fc8c0", kill_on_drop: false }`
[INFO] [stdout] fdd0c5ccd31b5b8514f7df660b28a2a17dc752047d2ee81e5534f980a71fc8c0