[INFO] fetching crate ys-core 0.0.0...
[INFO] testing ys-core-0.0.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate ys-core 0.0.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate ys-core 0.0.0
[INFO] finished tweaking crates.io crate ys-core 0.0.0
[INFO] tweaked toml for crates.io crate ys-core 0.0.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ys-core 0.0.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 71 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b08229c270c64b65782f0a3c855c203c96e291ef1faabfa8f9d009c061732f6
[INFO] running `Command { std: "docker" "start" "-a" "8b08229c270c64b65782f0a3c855c203c96e291ef1faabfa8f9d009c061732f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b08229c270c64b65782f0a3c855c203c96e291ef1faabfa8f9d009c061732f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b08229c270c64b65782f0a3c855c203c96e291ef1faabfa8f9d009c061732f6", kill_on_drop: false }`
[INFO] [stdout] 8b08229c270c64b65782f0a3c855c203c96e291ef1faabfa8f9d009c061732f6
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 807c9408b3adaa55ce26890f8664faeba8bd4aed73ab8903ac8712fbef69b804
[INFO] running `Command { std: "docker" "start" "-a" "807c9408b3adaa55ce26890f8664faeba8bd4aed73ab8903ac8712fbef69b804", kill_on_drop: false }`
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling constant_time_eq v0.3.1
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling blake3 v1.8.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling ys-core v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::fs::try_exists`
[INFO] [stdout]  --> src/objects/object_store/file_system.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::{create_dir, try_exists};
[INFO] [stdout]   |                           ^^^^^^^^^^ no `try_exists` in `fs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::fs::try_exists`
[INFO] [stdout]  --> src/snapshot/initialize.rs:8:64
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fs::{create_dir, create_dir_all, read_dir, read_to_string, try_exists, File},
[INFO] [stdout]   |                                                                ^^^^^^^^^^ no `try_exists` in `fs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `try_exists` in module `std::fs`
[INFO] [stdout]   --> src/objects/object_store/file_system.rs:33:18
[INFO] [stdout]    |
[INFO] [stdout] 33 |         std::fs::try_exists(path)
[INFO] [stdout]    |                  ^^^^^^^^^^ not found in `std::fs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `try_exists` in module `std::fs`
[INFO] [stdout]   --> src/objects/object_store/file_system.rs:62:21
[INFO] [stdout]    |
[INFO] [stdout] 62 |         if std::fs::try_exists(&path)? {
[INFO] [stdout]    |                     ^^^^^^^^^^ not found in `std::fs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `try_exists` in module `std::fs`
[INFO] [stdout]   --> src/objects/object_store/file_system.rs:66:22
[INFO] [stdout]    |
[INFO] [stdout] 66 |         if !std::fs::try_exists(&subdir_path)? {
[INFO] [stdout]    |                      ^^^^^^^^^^ not found in `std::fs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(fs_try_exists)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `fs_try_exists` has been stable since 1.81.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(fs_try_exists)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `serializer`
[INFO] [stdout]   --> src/objects/author_id/mod.rs:27:28
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
[INFO] [stdout]    |                            ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_serializer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `deserializer`
[INFO] [stdout]   --> src/objects/author_id/mod.rs:36:23
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
[INFO] [stdout]    |                       ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_deserializer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ys-core` (lib) due to 6 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "807c9408b3adaa55ce26890f8664faeba8bd4aed73ab8903ac8712fbef69b804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "807c9408b3adaa55ce26890f8664faeba8bd4aed73ab8903ac8712fbef69b804", kill_on_drop: false }`
[INFO] [stdout] 807c9408b3adaa55ce26890f8664faeba8bd4aed73ab8903ac8712fbef69b804
