[INFO] fetching crate grebedb 1.0.0...
[INFO] testing grebedb-1.0.0 against 1.94.0 for beta-1.95-1
[INFO] extracting crate grebedb 1.0.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate grebedb 1.0.0
[INFO] finished tweaking crates.io crate grebedb 1.0.0
[INFO] tweaked toml for crates.io crate grebedb 1.0.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate grebedb 1.0.0 on toolchain 1.94.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.94.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate grebedb 1.0.0 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" "+1.94.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zstd-safe v4.1.0+zstd.1.5.0
[INFO] [stderr]   Downloaded rand_hc v0.3.0
[INFO] [stderr]   Downloaded rand_xorshift v0.3.0
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[INFO] [stderr]   Downloaded rmp v0.8.10
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[INFO] [stderr]   Downloaded simba v0.4.0
[INFO] [stderr]   Downloaded rand_distr v0.4.0
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[INFO] [stderr]   Downloaded hashbrown v0.9.1
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[INFO] [stderr]   Downloaded libc v0.2.95
[INFO] [stderr]   Downloaded zstd-sys v1.6.0+zstd.1.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a71367cd34d67ad70833cf3e10ccbac42a8f4400cd25cff8fb6752a8e2f394d9
[INFO] running `Command { std: "docker" "start" "-a" "a71367cd34d67ad70833cf3e10ccbac42a8f4400cd25cff8fb6752a8e2f394d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a71367cd34d67ad70833cf3e10ccbac42a8f4400cd25cff8fb6752a8e2f394d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a71367cd34d67ad70833cf3e10ccbac42a8f4400cd25cff8fb6752a8e2f394d9", kill_on_drop: false }`
[INFO] [stdout] a71367cd34d67ad70833cf3e10ccbac42a8f4400cd25cff8fb6752a8e2f394d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60cd1b3ec568687ff0a6399ca0ac65565bcbea5d6c93163c2d08c2ea45e5a062
[INFO] running `Command { std: "docker" "start" "-a" "60cd1b3ec568687ff0a6399ca0ac65565bcbea5d6c93163c2d08c2ea45e5a062", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling zstd-safe v4.1.0+zstd.1.5.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling relative-path v1.4.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling data-encoding v2.3.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling crc32c v0.6.0
[INFO] [stderr]    Compiling jobserver v0.1.22
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling fslock v0.1.6
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling zstd-sys v1.6.0+zstd.1.5.0
[INFO] [stderr]    Compiling rmp v0.8.10
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling thiserror v1.0.25
[INFO] [stderr]    Compiling vfs v0.5.1
[INFO] [stderr]    Compiling rmp-serde v0.15.4
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling serde_bytes v0.11.5
[INFO] [stderr]    Compiling zstd v0.8.3+zstd.1.5.0
[INFO] [stderr]    Compiling grebedb v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/page.rs:90:13
[INFO] [stdout]    |
[INFO] [stdout] 90 |         let mut page = self.cached_pages.get_mut(&page_id).unwrap();
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/tree.rs:996:21
[INFO] [stdout]     |
[INFO] [stdout] 996 |         if let Some(mut meta) = self.page_table.auxiliary_metadata_mut() {
[INFO] [stdout]     |                     ----^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/tree.rs:1002:21
[INFO] [stdout]      |
[INFO] [stdout] 1002 |         if let Some(mut meta) = self.page_table.auxiliary_metadata_mut() {
[INFO] [stdout]      |                     ----^^^^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:324:21
[INFO] [stdout]     |
[INFO] [stdout] 324 |     pub fn metadata(&self) -> Metadata {
[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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 324 |     pub fn metadata(&self) -> Metadata<'_> {
[INFO] [stdout]     |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/page.rs:433:19
[INFO] [stdout]     |
[INFO] [stdout] 433 |     pub fn update(&mut self, page_id: PageId) -> Result<Option<PageUpdateGuard<T>>, Error> {
[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] 433 |     pub fn update(&mut self, page_id: PageId) -> Result<Option<PageUpdateGuard<'_, T>>, Error> {
[INFO] [stdout]     |                                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/page.rs:440:16
[INFO] [stdout]     |
[INFO] [stdout] 440 |     fn update_(&mut self, page_id: PageId) -> Result<Option<PageUpdateGuard<T>>, Error> {
[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] 440 |     fn update_(&mut self, page_id: PageId) -> Result<Option<PageUpdateGuard<'_, T>>, Error> {
[INFO] [stdout]     |                                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:734:18
[INFO] [stdout]     |
[INFO] [stdout] 734 |     fn edit_node(&mut self, page_id: PageId) -> Result<PageUpdateGuard<Node>, Error> {
[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] 734 |     fn edit_node(&mut self, page_id: PageId) -> Result<PageUpdateGuard<'_, Node>, Error> {
[INFO] [stdout]     |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 56.38s
[INFO] running `Command { std: "docker" "inspect" "60cd1b3ec568687ff0a6399ca0ac65565bcbea5d6c93163c2d08c2ea45e5a062", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60cd1b3ec568687ff0a6399ca0ac65565bcbea5d6c93163c2d08c2ea45e5a062", kill_on_drop: false }`
[INFO] [stdout] 60cd1b3ec568687ff0a6399ca0ac65565bcbea5d6c93163c2d08c2ea45e5a062
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd70b72fb1ccc2a24f57b23bad9434dcc8ed658d3c61d5f0e59bae02adcc2997
[INFO] running `Command { std: "docker" "start" "-a" "bd70b72fb1ccc2a24f57b23bad9434dcc8ed658d3c61d5f0e59bae02adcc2997", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling approx v0.4.0
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling matrixmultiply v0.3.1
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/page.rs:90:13
[INFO] [stdout]    |
[INFO] [stdout] 90 |         let mut page = self.cached_pages.get_mut(&page_id).unwrap();
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/tree.rs:996:21
[INFO] [stdout]     |
[INFO] [stdout] 996 |         if let Some(mut meta) = self.page_table.auxiliary_metadata_mut() {
[INFO] [stdout]     |                     ----^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/tree.rs:1002:21
[INFO] [stdout]      |
[INFO] [stdout] 1002 |         if let Some(mut meta) = self.page_table.auxiliary_metadata_mut() {
[INFO] [stdout]      |                     ----^^^^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:324:21
[INFO] [stdout]     |
[INFO] [stdout] 324 |     pub fn metadata(&self) -> Metadata {
[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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 324 |     pub fn metadata(&self) -> Metadata<'_> {
[INFO] [stdout]     |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/page.rs:433:19
[INFO] [stdout]     |
[INFO] [stdout] 433 |     pub fn update(&mut self, page_id: PageId) -> Result<Option<PageUpdateGuard<T>>, Error> {
[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] 433 |     pub fn update(&mut self, page_id: PageId) -> Result<Option<PageUpdateGuard<'_, T>>, Error> {
[INFO] [stdout]     |                                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/page.rs:440:16
[INFO] [stdout]     |
[INFO] [stdout] 440 |     fn update_(&mut self, page_id: PageId) -> Result<Option<PageUpdateGuard<T>>, Error> {
[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] 440 |     fn update_(&mut self, page_id: PageId) -> Result<Option<PageUpdateGuard<'_, T>>, Error> {
[INFO] [stdout]     |                                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:734:18
[INFO] [stdout]     |
[INFO] [stdout] 734 |     fn edit_node(&mut self, page_id: PageId) -> Result<PageUpdateGuard<Node>, Error> {
[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] 734 |     fn edit_node(&mut self, page_id: PageId) -> Result<PageUpdateGuard<'_, Node>, Error> {
[INFO] [stdout]     |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand_xorshift v0.3.0
[INFO] [stderr]    Compiling strkey v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling simba v0.4.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling rand_distr v0.4.0
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling nalgebra v0.26.2
[INFO] [stderr]    Compiling statrs v0.14.0
[INFO] [stderr]    Compiling grebedb v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/page.rs:90:13
[INFO] [stdout]    |
[INFO] [stdout] 90 |         let mut page = self.cached_pages.get_mut(&page_id).unwrap();
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/tree.rs:996:21
[INFO] [stdout]     |
[INFO] [stdout] 996 |         if let Some(mut meta) = self.page_table.auxiliary_metadata_mut() {
[INFO] [stdout]     |                     ----^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]     --> src/tree.rs:1002:21
[INFO] [stdout]      |
[INFO] [stdout] 1002 |         if let Some(mut meta) = self.page_table.auxiliary_metadata_mut() {
[INFO] [stdout]      |                     ----^^^^
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:324:21
[INFO] [stdout]     |
[INFO] [stdout] 324 |     pub fn metadata(&self) -> Metadata {
[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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 324 |     pub fn metadata(&self) -> Metadata<'_> {
[INFO] [stdout]     |                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/page.rs:433:19
[INFO] [stdout]     |
[INFO] [stdout] 433 |     pub fn update(&mut self, page_id: PageId) -> Result<Option<PageUpdateGuard<T>>, Error> {
[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] 433 |     pub fn update(&mut self, page_id: PageId) -> Result<Option<PageUpdateGuard<'_, T>>, Error> {
[INFO] [stdout]     |                                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/page.rs:440:16
[INFO] [stdout]     |
[INFO] [stdout] 440 |     fn update_(&mut self, page_id: PageId) -> Result<Option<PageUpdateGuard<T>>, Error> {
[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] 440 |     fn update_(&mut self, page_id: PageId) -> Result<Option<PageUpdateGuard<'_, T>>, Error> {
[INFO] [stdout]     |                                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/tree.rs:734:18
[INFO] [stdout]     |
[INFO] [stdout] 734 |     fn edit_node(&mut self, page_id: PageId) -> Result<PageUpdateGuard<Node>, Error> {
[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] 734 |     fn edit_node(&mut self, page_id: PageId) -> Result<PageUpdateGuard<'_, Node>, Error> {
[INFO] [stdout]     |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 20.81s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nalgebra v0.26.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "bd70b72fb1ccc2a24f57b23bad9434dcc8ed658d3c61d5f0e59bae02adcc2997", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd70b72fb1ccc2a24f57b23bad9434dcc8ed658d3c61d5f0e59bae02adcc2997", kill_on_drop: false }`
[INFO] [stdout] bd70b72fb1ccc2a24f57b23bad9434dcc8ed658d3c61d5f0e59bae02adcc2997
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/8b063605dcaf170353ac06596ebafab5785f97477ec3530fcad2bb9ed9b5e75d-init: no space left on device
