[INFO] fetching crate mrecordlog 0.4.0...
[INFO] testing mrecordlog-0.4.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate mrecordlog 0.4.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate mrecordlog 0.4.0
[INFO] finished tweaking crates.io crate mrecordlog 0.4.0
[INFO] tweaked toml for crates.io crate mrecordlog 0.4.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mrecordlog 0.4.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mrecordlog 0.4.0 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-channel v0.3.25
[INFO] [stderr]   Downloaded futures-sink v0.3.25
[INFO] [stderr]   Downloaded ciborium-io v0.2.0
[INFO] [stderr]   Downloaded futures v0.3.25
[INFO] [stderr]   Downloaded futures-macro v0.3.25
[INFO] [stderr]   Downloaded futures-task v0.3.25
[INFO] [stderr]   Downloaded ciborium-ll v0.2.0
[INFO] [stderr]   Downloaded async-trait v0.1.58
[INFO] [stderr]   Downloaded proptest v1.0.0
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[INFO] [stderr]   Downloaded futures-executor v0.3.25
[INFO] [stderr]   Downloaded futures-util v0.3.25
[INFO] [stderr]   Downloaded tokio v1.21.2
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c5b92c1aef38fd8347e1acbe14573dcb60ed5a3edf1f7944aef8912498f3ab9
[INFO] running `Command { std: "docker" "start" "-a" "4c5b92c1aef38fd8347e1acbe14573dcb60ed5a3edf1f7944aef8912498f3ab9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c5b92c1aef38fd8347e1acbe14573dcb60ed5a3edf1f7944aef8912498f3ab9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c5b92c1aef38fd8347e1acbe14573dcb60ed5a3edf1f7944aef8912498f3ab9", kill_on_drop: false }`
[INFO] [stdout] 4c5b92c1aef38fd8347e1acbe14573dcb60ed5a3edf1f7944aef8912498f3ab9
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6170b19f6340512389f041d7c7bf8a38743d0dca81db4aa63323f15bb34afd0
[INFO] running `Command { std: "docker" "start" "-a" "a6170b19f6340512389f041d7c7bf8a38743d0dca81db4aa63323f15bb34afd0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling async-trait v0.1.58
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling serde_json v1.0.87
[INFO] [stderr]    Compiling tracing-core v0.1.31
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling thiserror-impl v1.0.37
[INFO] [stderr]    Compiling tracing-attributes v0.1.23
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]    Compiling mrecordlog v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ArrayReader` is never constructed
[INFO] [stdout]   --> src/block_read_write.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct ArrayReader<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/mem/queue.rs:71:18
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn get_range(&self, bounds: impl RangeBounds<usize>) -> Cow<[u8]> {
[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] 71 |     fn get_range(&self, bounds: impl RangeBounds<usize>) -> Cow<'_, [u8]> {
[INFO] [stdout]    |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/mem/queue.rs:194:21
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn range<R>(&self, range: R) -> impl Iterator<Item = (u64, Cow<[u8]>)> + '_
[INFO] [stdout]     |                     ^^^^^                                          ^^^^^^^^^     ^^ the same lifetime is elided here
[INFO] [stdout]     |                     |                                              |
[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] 194 |     pub fn range<R>(&self, range: R) -> impl Iterator<Item = (u64, Cow<'_, [u8]>)> + '_
[INFO] [stdout]     |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/mem/queues.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         &self,
[INFO] [stdout]    |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 47 |     ) -> Result<impl Iterator<Item = (u64, Cow<[u8]>)> + '_, MissingQueue>
[INFO] [stdout]    |                                            ^^^^^^^^^     ^^ the same lifetime is elided here
[INFO] [stdout]    |                                            |
[INFO] [stdout]    |                                            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] 47 |     ) -> Result<impl Iterator<Item = (u64, Cow<'_, [u8]>)> + '_, MissingQueue>
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/multi_record_log.rs:291:9
[INFO] [stdout]     |
[INFO] [stdout] 291 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 294 |     ) -> Result<impl Iterator<Item = (u64, Cow<[u8]>)> + '_, MissingQueue>
[INFO] [stdout]     |                                            ^^^^^^^^^     ^^ the same lifetime is elided here
[INFO] [stdout]     |                                            |
[INFO] [stdout]     |                                            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] 294 |     ) -> Result<impl Iterator<Item = (u64, Cow<'_, [u8]>)> + '_, MissingQueue>
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/record.rs:126:24
[INFO] [stdout]     |
[INFO] [stdout] 126 |     pub fn new(buffer: &[u8]) -> Result<MultiRecord, MultiRecordCorruption> {
[INFO] [stdout]     |                        ^^^^^            ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        the lifetime is elided 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] 126 |     pub fn new(buffer: &[u8]) -> Result<MultiRecord<'_>, MultiRecordCorruption> {
[INFO] [stdout]     |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/record.rs:139:34
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn new_unchecked(buffer: &[u8]) -> MultiRecord {
[INFO] [stdout]     |                                  ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  the lifetime is elided 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] 139 |     pub fn new_unchecked(buffer: &[u8]) -> MultiRecord<'_> {
[INFO] [stdout]     |                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.61s
[INFO] running `Command { std: "docker" "inspect" "a6170b19f6340512389f041d7c7bf8a38743d0dca81db4aa63323f15bb34afd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6170b19f6340512389f041d7c7bf8a38743d0dca81db4aa63323f15bb34afd0", kill_on_drop: false }`
[INFO] [stdout] a6170b19f6340512389f041d7c7bf8a38743d0dca81db4aa63323f15bb34afd0
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf4e9a809c268b8697c1a49624d8b306d90c75cb6c2346916b9e27ba7335e1db
[INFO] running `Command { std: "docker" "start" "-a" "bf4e9a809c268b8697c1a49624d8b306d90c75cb6c2346916b9e27ba7335e1db", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling futures-sink v0.3.25
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling futures-macro v0.3.25
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling futures-io v0.3.25
[INFO] [stderr]    Compiling rayon-core v1.10.2
[INFO] [stderr]    Compiling crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling plotters-backend v0.3.4
[INFO] [stderr]    Compiling crossbeam-deque v0.8.2
[INFO] [stderr]    Compiling fastrand v1.8.0
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling os_str_bytes v6.4.1
[INFO] [stderr]    Compiling ciborium-io v0.2.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling ciborium-ll v0.2.0
[INFO] [stderr]    Compiling plotters-svg v0.3.3
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling textwrap v0.16.0
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling rayon v1.6.1
[INFO] [stderr]    Compiling rusty-fork v0.3.0
[INFO] [stderr]    Compiling clap v3.2.23
[INFO] [stderr]    Compiling plotters v0.3.4
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling regex v1.7.1
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling rand_xorshift v0.3.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling quick-error v2.0.1
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling proptest v1.0.0
[INFO] [stderr]    Compiling serde_json v1.0.87
[INFO] [stderr]    Compiling ciborium v0.2.0
[INFO] [stderr]    Compiling futures-executor v0.3.25
[INFO] [stderr]    Compiling futures v0.3.25
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling mrecordlog v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling criterion v0.4.0
[INFO] [stdout] warning: struct `ArrayReader` is never constructed
[INFO] [stdout]   --> src/block_read_write.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct ArrayReader<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/mem/queue.rs:71:18
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn get_range(&self, bounds: impl RangeBounds<usize>) -> Cow<[u8]> {
[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] 71 |     fn get_range(&self, bounds: impl RangeBounds<usize>) -> Cow<'_, [u8]> {
[INFO] [stdout]    |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/mem/queue.rs:194:21
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn range<R>(&self, range: R) -> impl Iterator<Item = (u64, Cow<[u8]>)> + '_
[INFO] [stdout]     |                     ^^^^^                                          ^^^^^^^^^     ^^ the same lifetime is elided here
[INFO] [stdout]     |                     |                                              |
[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] 194 |     pub fn range<R>(&self, range: R) -> impl Iterator<Item = (u64, Cow<'_, [u8]>)> + '_
[INFO] [stdout]     |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/mem/queues.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         &self,
[INFO] [stdout]    |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 47 |     ) -> Result<impl Iterator<Item = (u64, Cow<[u8]>)> + '_, MissingQueue>
[INFO] [stdout]    |                                            ^^^^^^^^^     ^^ the same lifetime is elided here
[INFO] [stdout]    |                                            |
[INFO] [stdout]    |                                            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] 47 |     ) -> Result<impl Iterator<Item = (u64, Cow<'_, [u8]>)> + '_, MissingQueue>
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/multi_record_log.rs:291:9
[INFO] [stdout]     |
[INFO] [stdout] 291 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 294 |     ) -> Result<impl Iterator<Item = (u64, Cow<[u8]>)> + '_, MissingQueue>
[INFO] [stdout]     |                                            ^^^^^^^^^     ^^ the same lifetime is elided here
[INFO] [stdout]     |                                            |
[INFO] [stdout]     |                                            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] 294 |     ) -> Result<impl Iterator<Item = (u64, Cow<'_, [u8]>)> + '_, MissingQueue>
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/record.rs:126:24
[INFO] [stdout]     |
[INFO] [stdout] 126 |     pub fn new(buffer: &[u8]) -> Result<MultiRecord, MultiRecordCorruption> {
[INFO] [stdout]     |                        ^^^^^            ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        the lifetime is elided 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] 126 |     pub fn new(buffer: &[u8]) -> Result<MultiRecord<'_>, MultiRecordCorruption> {
[INFO] [stdout]     |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/record.rs:139:34
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn new_unchecked(buffer: &[u8]) -> MultiRecord {
[INFO] [stdout]     |                                  ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  the lifetime is elided 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] 139 |     pub fn new_unchecked(buffer: &[u8]) -> MultiRecord<'_> {
[INFO] [stdout]     |                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/mem/queue.rs:71:18
[INFO] [stdout]    |
[INFO] [stdout] 71 |     fn get_range(&self, bounds: impl RangeBounds<usize>) -> Cow<[u8]> {
[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] 71 |     fn get_range(&self, bounds: impl RangeBounds<usize>) -> Cow<'_, [u8]> {
[INFO] [stdout]    |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/mem/queue.rs:194:21
[INFO] [stdout]     |
[INFO] [stdout] 194 |     pub fn range<R>(&self, range: R) -> impl Iterator<Item = (u64, Cow<[u8]>)> + '_
[INFO] [stdout]     |                     ^^^^^                                          ^^^^^^^^^     ^^ the same lifetime is elided here
[INFO] [stdout]     |                     |                                              |
[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] 194 |     pub fn range<R>(&self, range: R) -> impl Iterator<Item = (u64, Cow<'_, [u8]>)> + '_
[INFO] [stdout]     |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/mem/queues.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         &self,
[INFO] [stdout]    |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 47 |     ) -> Result<impl Iterator<Item = (u64, Cow<[u8]>)> + '_, MissingQueue>
[INFO] [stdout]    |                                            ^^^^^^^^^     ^^ the same lifetime is elided here
[INFO] [stdout]    |                                            |
[INFO] [stdout]    |                                            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] 47 |     ) -> Result<impl Iterator<Item = (u64, Cow<'_, [u8]>)> + '_, MissingQueue>
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/multi_record_log.rs:291:9
[INFO] [stdout]     |
[INFO] [stdout] 291 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 294 |     ) -> Result<impl Iterator<Item = (u64, Cow<[u8]>)> + '_, MissingQueue>
[INFO] [stdout]     |                                            ^^^^^^^^^     ^^ the same lifetime is elided here
[INFO] [stdout]     |                                            |
[INFO] [stdout]     |                                            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] 294 |     ) -> Result<impl Iterator<Item = (u64, Cow<'_, [u8]>)> + '_, MissingQueue>
[INFO] [stdout]     |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/record.rs:126:24
[INFO] [stdout]     |
[INFO] [stdout] 126 |     pub fn new(buffer: &[u8]) -> Result<MultiRecord, MultiRecordCorruption> {
[INFO] [stdout]     |                        ^^^^^            ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        the lifetime is elided 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] 126 |     pub fn new(buffer: &[u8]) -> Result<MultiRecord<'_>, MultiRecordCorruption> {
[INFO] [stdout]     |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/record.rs:139:34
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn new_unchecked(buffer: &[u8]) -> MultiRecord {
[INFO] [stdout]     |                                  ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                                  |
[INFO] [stdout]     |                                  the lifetime is elided 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] 139 |     pub fn new_unchecked(buffer: &[u8]) -> MultiRecord<'_> {
[INFO] [stdout]     |                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 55.89s
[INFO] running `Command { std: "docker" "inspect" "bf4e9a809c268b8697c1a49624d8b306d90c75cb6c2346916b9e27ba7335e1db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf4e9a809c268b8697c1a49624d8b306d90c75cb6c2346916b9e27ba7335e1db", kill_on_drop: false }`
[INFO] [stdout] bf4e9a809c268b8697c1a49624d8b306d90c75cb6c2346916b9e27ba7335e1db
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 18c69d8bd2e3afab040cf3c8fc7d17132f3e0534faab939e6ea31acfe064510a
[INFO] running `Command { std: "docker" "start" "-a" "18c69d8bd2e3afab040cf3c8fc7d17132f3e0534faab939e6ea31acfe064510a", kill_on_drop: false }`
[INFO] [stderr] warning: struct `ArrayReader` is never constructed
[INFO] [stderr]   --> src/block_read_write.rs:38:12
[INFO] [stderr]    |
[INFO] [stderr] 38 | pub struct ArrayReader<'a> {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/mem/queue.rs:71:18
[INFO] [stderr]    |
[INFO] [stderr] 71 |     fn get_range(&self, bounds: impl RangeBounds<usize>) -> Cow<[u8]> {
[INFO] [stderr]    |                  ^^^^^ the lifetime is elided here          ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 71 |     fn get_range(&self, bounds: impl RangeBounds<usize>) -> Cow<'_, [u8]> {
[INFO] [stderr]    |                                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/mem/queue.rs:194:21
[INFO] [stderr]     |
[INFO] [stderr] 194 |     pub fn range<R>(&self, range: R) -> impl Iterator<Item = (u64, Cow<[u8]>)> + '_
[INFO] [stderr]     |                     ^^^^^                                          ^^^^^^^^^     ^^ the same lifetime is elided here
[INFO] [stderr]     |                     |                                              |
[INFO] [stderr]     |                     the lifetime is elided here                    the same lifetime is hidden here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 194 |     pub fn range<R>(&self, range: R) -> impl Iterator<Item = (u64, Cow<'_, [u8]>)> + '_
[INFO] [stderr]     |                                                                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/mem/queues.rs:44:9
[INFO] [stderr]    |
[INFO] [stderr] 44 |         &self,
[INFO] [stderr]    |         ^^^^^ the lifetime is elided here
[INFO] [stderr] ...
[INFO] [stderr] 47 |     ) -> Result<impl Iterator<Item = (u64, Cow<[u8]>)> + '_, MissingQueue>
[INFO] [stderr]    |                                            ^^^^^^^^^     ^^ the same lifetime is elided here
[INFO] [stderr]    |                                            |
[INFO] [stderr]    |                                            the same lifetime is hidden here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 47 |     ) -> Result<impl Iterator<Item = (u64, Cow<'_, [u8]>)> + '_, MissingQueue>
[INFO] [stderr]    |                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/multi_record_log.rs:291:9
[INFO] [stderr]     |
[INFO] [stderr] 291 |         &self,
[INFO] [stderr]     |         ^^^^^ the lifetime is elided here
[INFO] [stderr] ...
[INFO] [stderr] 294 |     ) -> Result<impl Iterator<Item = (u64, Cow<[u8]>)> + '_, MissingQueue>
[INFO] [stderr]     |                                            ^^^^^^^^^     ^^ the same lifetime is elided here
[INFO] [stderr]     |                                            |
[INFO] [stderr]     |                                            the same lifetime is hidden here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 294 |     ) -> Result<impl Iterator<Item = (u64, Cow<'_, [u8]>)> + '_, MissingQueue>
[INFO] [stderr]     |                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/record.rs:126:24
[INFO] [stderr]     |
[INFO] [stderr] 126 |     pub fn new(buffer: &[u8]) -> Result<MultiRecord, MultiRecordCorruption> {
[INFO] [stderr]     |                        ^^^^^            ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                        |
[INFO] [stderr]     |                        the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 126 |     pub fn new(buffer: &[u8]) -> Result<MultiRecord<'_>, MultiRecordCorruption> {
[INFO] [stderr]     |                                                    ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/record.rs:139:34
[INFO] [stderr]     |
[INFO] [stderr] 139 |     pub fn new_unchecked(buffer: &[u8]) -> MultiRecord {
[INFO] [stderr]     |                                  ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                                  |
[INFO] [stderr]     |                                  the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 139 |     pub fn new_unchecked(buffer: &[u8]) -> MultiRecord<'_> {
[INFO] [stderr]     |                                                       ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `mrecordlog` (lib) generated 7 warnings (run `cargo fix --lib -p mrecordlog` to apply 6 suggestions)
[INFO] [stderr] warning: `mrecordlog` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mrecordlog-728862913abe5314)
[INFO] [stdout] 
[INFO] [stdout] running 58 tests
[INFO] [stdout] test frame::header::tests::test_frame_deserialize_invalid ... ok
[INFO] [stdout] test frame::header::tests::test_frame_type_serialize_deserialize ... ok
[INFO] [stdout] test frame::tests::test_frame_corruption_in_payload ... ok
[INFO] [stdout] test frame::header::tests::test_header_deserialize_invalid ... ok
[INFO] [stdout] test mem::tests::test_mem_queues_already_exists ... ok
[INFO] [stdout] test mem::tests::test_mem_queues_append_idempotence ... ok
[INFO] [stdout] test mem::tests::test_mem_queues_non_zero_first_el ... ok
[INFO] [stdout] test mem::tests::test_mem_queues_skip_advance ... ok
[INFO] [stdout] test frame::tests::test_frame_simple ... ok
[INFO] [stdout] test mem::tests::test_mem_queues_truncate ... ok
[INFO] [stdout] test mem::tests::test_mem_queues_keep_filenum ... ok
[INFO] [stdout] test frame::header::tests::test_header_serialize_deserialize ... ok
[INFO] [stdout] test mem::tests::test_mem_queues ... ok
[INFO] [stdout] test proptests::test_multi_record ... ok
[INFO] [stdout] test frame::tests::test_simple_multiple_blocks ... ok
[INFO] [stdout] test record::tests::test_record_type_serialize ... ok
[INFO] [stdout] test recordlog::tests::test_block_requires_padding ... ok
[INFO] [stdout] test mem::tests::test_mem_queues_append_in_the_past_yield_error ... ok
[INFO] [stdout] test recordlog::tests::test_empty_record ... ok
[INFO] [stdout] test recordlog::tests::test_behavior_upon_corruption ... ok
[INFO] [stdout] test recordlog::tests::test_first_chunk_empty ... ok
[INFO] [stdout] test recordlog::tests::test_no_data ... ok
[INFO] [stdout] test recordlog::tests::test_simple_record ... ok
[INFO] [stdout] test frame::tests::test_multiple_blocks_corruption_on_length ... ok
[INFO] [stdout] test recordlog::tests::test_spans_over_more_than_one_block ... ok
[INFO] [stdout] test rolling::directory::tests::test_filename_to_seq_number ... ok
[INFO] [stdout] test rolling::directory::tests::test_filename_to_seq_number_33b ... ok
[INFO] [stdout] test rolling::directory::tests::test_filename_to_seq_number_64b ... ok
[INFO] [stdout] test rolling::directory::tests::test_filename_to_seq_number_invalid_len_rejected ... ok
[INFO] [stdout] test rolling::directory::tests::test_filename_to_seq_number_invalid_padding_rejected ... ok
[INFO] [stdout] test rolling::directory::tests::test_filename_to_seq_number_invalid_prefix_rejected ... ok
[INFO] [stdout] test rolling::file_number::tests::test_file_number_can_be_deleted ... ok
[INFO] [stdout] test rolling::file_number::tests::test_file_number_cannot_be_deleted_after_cloned_dropped ... ok
[INFO] [stdout] test rolling::directory::tests::test_filename_to_seq_number_simple ... ok
[INFO] [stdout] test rolling::file_number::tests::test_file_number_starts_at_0 ... ok
[INFO] [stdout] test rolling::file_number::tests::test_file_number_with_clone_cannot_be_deleted ... ok
[INFO] [stdout] test rolling::tests::test_directory_single_file ... ok
[INFO] [stdout] test proptests::test_scenario_end_on_full_file ... ok
[INFO] [stdout] test rolling::tests::test_directory_truncate ... ok
[INFO] [stdout] test rolling::tests::test_read_truncated ... ok
[INFO] [stdout] test tests::test_multi_insert_truncate ... ok
[INFO] [stdout] test tests::test_multi_record_log_chained ... ok
[INFO] [stdout] test tests::test_multi_record_log_create_queue ... ok
[INFO] [stdout] test rolling::tests::test_directory_simple ... ok
[INFO] [stdout] test tests::test_multi_record_log ... ok
[INFO] [stdout] test tests::test_multi_record_log_create_queue_after_reopen ... ok
[INFO] [stdout] test tests::test_multi_record_log_new ... ok
[INFO] [stdout] test tests::test_multi_record_log_simple ... ok
[INFO] [stdout] test rolling::tests::test_read_write ... ok
[INFO] [stdout] test tests::test_multi_record_log_reopen ... ok
[INFO] [stdout] test rolling::tests::test_read_write_2nd_block ... ok
[INFO] [stdout] test tests::test_multi_record_size ... ok
[INFO] [stdout] test tests::test_truncate_range_correct_pos ... ok
[INFO] [stdout] test tests::test_multi_record_position_known_after_truncate ... ok
[INFO] [stdout] test tests::test_open_corrupted ... ok
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/mrecordlog-728862913abe5314` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "18c69d8bd2e3afab040cf3c8fc7d17132f3e0534faab939e6ea31acfe064510a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18c69d8bd2e3afab040cf3c8fc7d17132f3e0534faab939e6ea31acfe064510a", kill_on_drop: false }`
[INFO] [stdout] 18c69d8bd2e3afab040cf3c8fc7d17132f3e0534faab939e6ea31acfe064510a
