[INFO] fetching crate needletail 0.2.2...
[INFO] checking needletail-0.2.2 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate needletail 0.2.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate needletail 0.2.2 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate needletail 0.2.2
[INFO] finished tweaking crates.io crate needletail 0.2.2
[INFO] tweaked toml for crates.io crate needletail 0.2.2 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a26e12d29cacff51c1897138bfebe31549049cc84d2f0d82d6ccb21ef9acbbcc
[INFO] running `"docker" "start" "-a" "a26e12d29cacff51c1897138bfebe31549049cc84d2f0d82d6ccb21ef9acbbcc"`
[INFO] [stderr]     Checking needletail v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fastx.rs:299:59
[INFO] [stderr]     |
[INFO] [stderr] 299 |     fastx_reader(&mut cursor, None, callback, None::<&mut FnMut(&'static str) -> ()>)
[INFO] [stderr]     |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&'static str) -> ()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/buffer.rs:8:19
[INFO] [stderr]   |
[INFO] [stderr] 8 |     file: &'a mut io::Read,
[INFO] [stderr]   |                   ^^^^^^^^ help: use `dyn`: `dyn io::Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/buffer.rs:23:30
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn new(file: &'a mut io::Read, buf_size: usize, header: &[u8]) -> Result<RecReader<'a>, ParseError> {
[INFO] [stderr]    |                              ^^^^^^^^ help: use `dyn`: `dyn io::Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util.rs:34:32
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/fastx.rs:299:59
[INFO] [stderr]     |
[INFO] [stderr] 299 |     fastx_reader(&mut cursor, None, callback, None::<&mut FnMut(&'static str) -> ()>)
[INFO] [stderr]     |                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&'static str) -> ()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/buffer.rs:8:19
[INFO] [stderr]   |
[INFO] [stderr] 8 |     file: &'a mut io::Read,
[INFO] [stderr]   |                   ^^^^^^^^ help: use `dyn`: `dyn io::Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/buffer.rs:23:30
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn new(file: &'a mut io::Read, buf_size: usize, header: &[u8]) -> Result<RecReader<'a>, ParseError> {
[INFO] [stderr]    |                              ^^^^^^^^ help: use `dyn`: `dyn io::Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util.rs:34:32
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn cause(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_bytes`
[INFO] [stderr]   --> src/buffer.rs:85:5
[INFO] [stderr]    |
[INFO] [stderr] 85 |     pub fn from_bytes(data: &'a [u8]) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]    --> src/fastx.rs:698:13
[INFO] [stderr]     |
[INFO] [stderr] 698 |         for s in rec_buffer.by_ref() {
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_s`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `bitkmer`, `kmer`
[INFO] [stderr]  --> benches/benchmark.rs:7:25
[INFO] [stderr]   |
[INFO] [stderr] 7 | use needletail::{fastx, kmer, bitkmer};
[INFO] [stderr]   |                         ^^^^  ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `kmer`
[INFO] [stderr]   --> benches/benchmark.rs:21:21
[INFO] [stderr]    |
[INFO] [stderr] 21 |             for (_, kmer, was_rc) in seq.normalize(true).kmers(ksize, true) {
[INFO] [stderr]    |                     ^^^^ help: consider prefixing with an underscore: `_kmer`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k`
[INFO] [stderr]   --> benches/benchmark.rs:41:21
[INFO] [stderr]    |
[INFO] [stderr] 41 |             for (_, k, was_rc) in seq.bit_kmers(ksize, true) {
[INFO] [stderr]    |                     ^ help: consider prefixing with an underscore: `_k`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ksize`
[INFO] [stderr]   --> benches/benchmark.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let ksize = 31;
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_ksize`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ksize`
[INFO] [stderr]   --> benches/benchmark.rs:75:9
[INFO] [stderr]    |
[INFO] [stderr] 75 |     let ksize = 31;
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_ksize`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ksize`
[INFO] [stderr]   --> benches/benchmark.rs:90:9
[INFO] [stderr]    |
[INFO] [stderr] 90 |     let ksize = 31;
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_ksize`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ksize`
[INFO] [stderr]    --> benches/benchmark.rs:107:9
[INFO] [stderr]     |
[INFO] [stderr] 107 |     let ksize = 31;
[INFO] [stderr]     |         ^^^^^ help: consider prefixing with an underscore: `_ksize`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> benches/benchmark.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     f.read_to_end(&mut data);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> benches/benchmark.rs:94:5
[INFO] [stderr]    |
[INFO] [stderr] 94 |     f.read_to_end(&mut data);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `"docker" "inspect" "a26e12d29cacff51c1897138bfebe31549049cc84d2f0d82d6ccb21ef9acbbcc"`
[INFO] running `"docker" "rm" "-f" "a26e12d29cacff51c1897138bfebe31549049cc84d2f0d82d6ccb21ef9acbbcc"`
[INFO] [stdout] a26e12d29cacff51c1897138bfebe31549049cc84d2f0d82d6ccb21ef9acbbcc