[INFO] fetching crate flash-kv 0.2.1...
[INFO] checking flash-kv-0.2.1 against master#ff647322379c48947c196639599067665ff9eb88 for pr-151539-1
[INFO] extracting crate flash-kv 0.2.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate flash-kv 0.2.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate flash-kv 0.2.1
[INFO] tweaked toml for crates.io crate flash-kv 0.2.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate flash-kv 0.2.1 on toolchain ff647322379c48947c196639599067665ff9eb88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff647322379c48947c196639599067665ff9eb88" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate flash-kv 0.2.1 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" "+ff647322379c48947c196639599067665ff9eb88" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fs4 v0.7.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 00445f0638cffe2db24ae2b0dedbbe97bb3c3d42416c4ac9cb16f613087b1e30
[INFO] running `Command { std: "docker" "start" "00445f0638cffe2db24ae2b0dedbbe97bb3c3d42416c4ac9cb16f613087b1e30", 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" "00445f0638cffe2db24ae2b0dedbbe97bb3c3d42416c4ac9cb16f613087b1e30" "/opt/rustwide/cargo-home/bin/cargo" "+ff647322379c48947c196639599067665ff9eb88" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00445f0638cffe2db24ae2b0dedbbe97bb3c3d42416c4ac9cb16f613087b1e30", 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" "00445f0638cffe2db24ae2b0dedbbe97bb3c3d42416c4ac9cb16f613087b1e30" "/opt/rustwide/cargo-home/bin/cargo" "+ff647322379c48947c196639599067665ff9eb88" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
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[INFO] [stderr]     Checking flash-kv v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/iterator.rs:15:15
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn iter(&self, options: IteratorOptions) -> Iterator {
[INFO] [stdout]    |               ^^^^^ the lifetime is elided here   ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn iter(&self, options: IteratorOptions) -> Iterator<'_> {
[INFO] [stdout]    |                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/batch.rs:29:26
[INFO] [stdout]    |
[INFO] [stdout] 29 |   pub fn new_write_batch(&self, options: WriteBatchOptions) -> Result<WriteBatch> {
[INFO] [stdout]    |                          ^^^^^ the lifetime is elided here            ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 29 |   pub fn new_write_batch(&self, options: WriteBatchOptions) -> Result<WriteBatch<'_>> {
[INFO] [stdout]    |                                                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]   --> benches/kv_bench.rs:50:23
[INFO] [stdout]    |
[INFO] [stdout] 50 |   let mut rnd = rand::thread_rng();
[INFO] [stdout]    |                       ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]   --> benches/kv_bench.rs:63:25
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let mut rnd = rand::thread_rng();
[INFO] [stdout]    |                         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]   --> benches/kv_bench.rs:74:25
[INFO] [stdout]    |
[INFO] [stdout] 74 |     let mut rnd = rand::thread_rng();
[INFO] [stdout]    |                         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `rand::thread_rng`: Renamed to `rng`
[INFO] [stdout]   --> benches/kv_bench.rs:85:25
[INFO] [stdout]    |
[INFO] [stdout] 85 |     let mut rnd = rand::thread_rng();
[INFO] [stdout]    |                         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `path::PathBuf`
[INFO] [stdout]   --> src/fio/mmap.rs:71:17
[INFO] [stdout]    |
[INFO] [stdout] 71 |   use std::{fs, path::PathBuf};
[INFO] [stdout]    |                 ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]   --> benches/kv_bench.rs:55:19
[INFO] [stdout]    |
[INFO] [stdout] 55 |       let i = rnd.gen_range(0..u32::MAX) as usize;
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]   --> benches/kv_bench.rs:65:19
[INFO] [stdout]    |
[INFO] [stdout] 65 |       let i = rnd.gen_range(0..NUM_PREPOPULATE_ITEMS);
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `rand::Rng::gen_range`: Renamed to `random_range`
[INFO] [stdout]   --> benches/kv_bench.rs:76:19
[INFO] [stdout]    |
[INFO] [stdout] 76 |       let i = rnd.gen_range(NUM_PREPOPULATE_ITEMS..(NUM_PREPOPULATE_ITEMS + 100000));
[INFO] [stdout]    |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> benches/kv_bench.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     let mut rnd = rand::thread_rng();
[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: unused variable: `rnd`
[INFO] [stdout]   --> benches/kv_bench.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     let mut rnd = rand::thread_rng();
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rnd`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metadata`
[INFO] [stdout]   --> src/fio/mmap.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |     let metadata = fs::metadata(&path).unwrap();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metadata`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metadata`
[INFO] [stdout]    --> src/fio/mmap.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 112 |     let metadata = fs::metadata(&path).unwrap();
[INFO] [stdout]     |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metadata`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/iterator.rs:15:15
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn iter(&self, options: IteratorOptions) -> Iterator {
[INFO] [stdout]    |               ^^^^^ the lifetime is elided here   ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 15 |   pub fn iter(&self, options: IteratorOptions) -> Iterator<'_> {
[INFO] [stdout]    |                                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/batch.rs:29:26
[INFO] [stdout]    |
[INFO] [stdout] 29 |   pub fn new_write_batch(&self, options: WriteBatchOptions) -> Result<WriteBatch> {
[INFO] [stdout]    |                          ^^^^^ the lifetime is elided here            ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 29 |   pub fn new_write_batch(&self, options: WriteBatchOptions) -> Result<WriteBatch<'_>> {
[INFO] [stdout]    |                                                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.69s
[INFO] running `Command { std: "docker" "inspect" "00445f0638cffe2db24ae2b0dedbbe97bb3c3d42416c4ac9cb16f613087b1e30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00445f0638cffe2db24ae2b0dedbbe97bb3c3d42416c4ac9cb16f613087b1e30", kill_on_drop: false }`
[INFO] [stdout] 00445f0638cffe2db24ae2b0dedbbe97bb3c3d42416c4ac9cb16f613087b1e30
