[INFO] fetching crate grebedb 1.0.0...
[INFO] checking grebedb-1.0.0 against 1.95.0 for pr-155915
[INFO] extracting crate grebedb 1.0.0 into /workspace/builds/worker-7-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-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate grebedb 1.0.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "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" "+1.95.0" "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 redox_syscall v0.2.8
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[INFO] [stderr]   Downloaded rmp-serde v0.15.4
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[INFO] [stderr]   Downloaded rmp v0.8.10
[INFO] [stderr]   Downloaded matrixmultiply v0.3.1
[INFO] [stderr]   Downloaded rand_distr v0.4.0
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[INFO] [stderr]   Downloaded statrs v0.14.0
[INFO] [stderr]   Downloaded syn v1.0.72
[INFO] [stderr]   Downloaded nalgebra v0.26.2
[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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 531a716cf51764a6e70f082e246bcf82fc042eb8eba9d3cfa6c96c40fccfe946
[INFO] running `Command { std: "docker" "start" "-a" "531a716cf51764a6e70f082e246bcf82fc042eb8eba9d3cfa6c96c40fccfe946", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "531a716cf51764a6e70f082e246bcf82fc042eb8eba9d3cfa6c96c40fccfe946", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "531a716cf51764a6e70f082e246bcf82fc042eb8eba9d3cfa6c96c40fccfe946", kill_on_drop: false }`
[INFO] [stdout] 531a716cf51764a6e70f082e246bcf82fc042eb8eba9d3cfa6c96c40fccfe946
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99d9127466db48ccfe5d1f98af2b4418548cca84db3562fa4558ce747ef5b77f
[INFO] running `Command { std: "docker" "start" "-a" "99d9127466db48ccfe5d1f98af2b4418548cca84db3562fa4558ce747ef5b77f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling zstd-safe v4.1.0+zstd.1.5.0
[INFO] [stderr]    Compiling crc32c v0.6.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking matrixmultiply v0.3.1
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking getrandom v0.2.3
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[INFO] [stderr]     Checking atty v0.2.14
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[INFO] [stderr]     Checking num-integer v0.1.44
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[INFO] [stderr]     Checking simba v0.4.0
[INFO] [stderr]    Compiling zstd-sys v1.6.0+zstd.1.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]     Checking vfs v0.5.1
[INFO] [stderr]     Checking nalgebra v0.26.2
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[INFO] [stderr]     Checking zstd v0.8.3+zstd.1.5.0
[INFO] [stderr]     Checking 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: 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: 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] [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 2m 01s
[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 3`
[INFO] running `Command { std: "docker" "inspect" "99d9127466db48ccfe5d1f98af2b4418548cca84db3562fa4558ce747ef5b77f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99d9127466db48ccfe5d1f98af2b4418548cca84db3562fa4558ce747ef5b77f", kill_on_drop: false }`
[INFO] [stdout] 99d9127466db48ccfe5d1f98af2b4418548cca84db3562fa4558ce747ef5b77f
