[INFO] cloning repository https://github.com/Bennett-Petzold/backed_data
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Bennett-Petzold/backed_data" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBennett-Petzold%2Fbacked_data", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBennett-Petzold%2Fbacked_data'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 802b48af64814f844d86409b65cf35a1ebe6387f
[INFO] checking Bennett-Petzold/backed_data against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBennett-Petzold%2Fbacked_data" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/Bennett-Petzold/backed_data
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/Bennett-Petzold/backed_data
[INFO] tweaked toml for git repo https://github.com/Bennett-Petzold/backed_data written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Bennett-Petzold/backed_data on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Bennett-Petzold/backed_data 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d964bebd104c10645416f602f506eb7b2456f778a70d2ae240c46c78cf7fb4bc
[INFO] running `Command { std: "docker" "start" "-a" "d964bebd104c10645416f602f506eb7b2456f778a70d2ae240c46c78cf7fb4bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d964bebd104c10645416f602f506eb7b2456f778a70d2ae240c46c78cf7fb4bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d964bebd104c10645416f602f506eb7b2456f778a70d2ae240c46c78cf7fb4bc", kill_on_drop: false }`
[INFO] [stdout] d964bebd104c10645416f602f506eb7b2456f778a70d2ae240c46c78cf7fb4bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf0587e7572db27222382553ed962d09fc946d09437c5fe249a0cd1122016560
[INFO] running `Command { std: "docker" "start" "-a" "bf0587e7572db27222382553ed962d09fc946d09437c5fe249a0cd1122016560", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking bytes v1.9.0
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[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking icu_locid_transform_data v1.5.0
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]     Checking icu_properties_data v1.5.0
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[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]    Compiling icu_provider_macros v1.5.0
[INFO] [stderr]    Compiling derive-where v1.2.7
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[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror-impl v2.0.11
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[INFO] [stderr]    Compiling derive-getters v0.5.0
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[INFO] [stderr]     Checking yoke v0.7.5
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking zerovec v0.10.4
[INFO] [stderr]     Checking async_zip v0.0.17
[INFO] [stderr]    Compiling quote-use-macros v0.7.2
[INFO] [stderr]    Compiling quote-use v0.7.2
[INFO] [stderr]    Compiling attribute-derive-macro v0.6.1
[INFO] [stderr]     Checking tinystr v0.7.6
[INFO] [stderr]     Checking icu_collections v1.5.0
[INFO] [stderr]     Checking icu_locid v1.5.0
[INFO] [stderr]     Checking zstd v0.13.2
[INFO] [stderr]    Compiling attribute-derive v0.6.1
[INFO] [stderr]    Compiling get-size-derive v0.1.3
[INFO] [stderr]     Checking icu_provider v1.5.0
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[INFO] [stderr]     Checking icu_locid_transform v1.5.0
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[INFO] [stderr]     Checking tokio-util v0.7.13
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[INFO] [stdout] warning: unused imports: `Mutex` and `cell::UnsafeCell`
[INFO] [stdout]  --> src/utils/protected.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     cell::UnsafeCell,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 9 |     sync::{Mutex, MutexGuard},
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ToMut` and `ToRef`
[INFO] [stdout]   --> src/utils/protected.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 | use super::{ToMut, ToRef};
[INFO] [stdout]    |             ^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stdout] error: struct `GuardToRef` is never constructed
[INFO] [stdout]   --> src/utils/protected.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct GuardToRef<'a, T>(MutexGuard<'a, T>);
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `GuardToMut` is never constructed
[INFO] [stdout]   --> src/utils/protected.rs:24:12
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub struct GuardToMut<'a, T>(MutexGuard<'a, T>);
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/entry/sync_impl.rs:247:9
[INFO] [stdout]     |
[INFO] [stdout] 247 |         &mut self,
[INFO] [stdout]     |         ^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 248 |     ) -> Result<BackedEntryMut<Self>, <Coder as Decoder<Disk::ReadDisk>>::Error> {
[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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 248 |     ) -> Result<BackedEntryMut<'_, Self>, <Coder as Decoder<Disk::ReadDisk>>::Error> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `backed_data` (lib) due to 2 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "bf0587e7572db27222382553ed962d09fc946d09437c5fe249a0cd1122016560", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf0587e7572db27222382553ed962d09fc946d09437c5fe249a0cd1122016560", kill_on_drop: false }`
[INFO] [stdout] bf0587e7572db27222382553ed962d09fc946d09437c5fe249a0cd1122016560
