[INFO] fetching crate kip_db 0.1.2-alpha.26.fix1...
[INFO] testing kip_db-0.1.2-alpha.26.fix1 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate kip_db 0.1.2-alpha.26.fix1 into /workspace/builds/worker-5-tc2/source
[INFO] removed /workspace/builds/worker-5-tc2/source/rust-toolchain
[INFO] started tweaking crates.io crate kip_db 0.1.2-alpha.26.fix1
[INFO] finished tweaking crates.io crate kip_db 0.1.2-alpha.26.fix1
[INFO] tweaked toml for crates.io crate kip_db 0.1.2-alpha.26.fix1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate kip_db 0.1.2-alpha.26.fix1 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate kip_db 0.1.2-alpha.26.fix1 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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] daa192da4f6f5cc0e20bf51ca2dc1b7385288957858dab63546b08071c092ec3
[INFO] running `Command { std: "docker" "start" "-a" "daa192da4f6f5cc0e20bf51ca2dc1b7385288957858dab63546b08071c092ec3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "daa192da4f6f5cc0e20bf51ca2dc1b7385288957858dab63546b08071c092ec3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daa192da4f6f5cc0e20bf51ca2dc1b7385288957858dab63546b08071c092ec3", kill_on_drop: false }`
[INFO] [stdout] daa192da4f6f5cc0e20bf51ca2dc1b7385288957858dab63546b08071c092ec3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6ddb71a5d753ece9b5a44761a67dd901c107303a97a4278c546279c44c2d74c
[INFO] running `Command { std: "docker" "start" "-a" "f6ddb71a5d753ece9b5a44761a67dd901c107303a97a4278c546279c44c2d74c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
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[INFO] [stderr]    Compiling kip_db v0.1.2-alpha.26.fix1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling either v1.9.0
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[INFO] [stdout] error[E0425]: cannot find function `try_exists` in module `fs`
[INFO] [stdout]   --> src/kernel/io/mod.rs:96:16
[INFO] [stdout]    |
[INFO] [stdout] 96 |         Ok(fs::try_exists(path)?)
[INFO] [stdout]    |                ^^^^^^^^^^ not found in `fs`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout]  4 + use tokio::fs::try_exists;
[INFO] [stdout]    |
[INFO] [stdout] help: if you import `try_exists`, refer to it directly
[INFO] [stdout]    |
[INFO] [stdout] 96 -         Ok(fs::try_exists(path)?)
[INFO] [stdout] 96 +         Ok(try_exists(path)?)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `trait_upcasting` has been stable since 1.86.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(trait_upcasting)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[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] 
[INFO] [stdout] warning: the feature `is_sorted` has been stable since 1.82.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(is_sorted)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `cursor_remaining`
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(cursor_remaining)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `is_empty` exists for mutable reference `&mut std::io::Cursor<Vec<u8>>`, but its trait bounds were not satisfied
[INFO] [stdout]   --> src/kernel/lsm/table/ss_table/block.rs:72:23
[INFO] [stdout]    |
[INFO] [stdout] 72 |         while !cursor.is_empty() {
[INFO] [stdout]    |                       ^^^^^^^^ method cannot be called on `&mut std::io::Cursor<Vec<u8>>` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `std::io::Cursor<Vec<u8>>: ExactSizeIterator`
[INFO] [stdout]            which is required by `&mut std::io::Cursor<Vec<u8>>: ExactSizeIterator`
[INFO] [stdout]    = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout] note: `Storage` defines an item `is_empty`, perhaps you need to implement it
[INFO] [stdout]   --> src/kernel/mod.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub trait Storage: Send + Sync + 'static + Sized {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kip_db` (lib) due to 3 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f6ddb71a5d753ece9b5a44761a67dd901c107303a97a4278c546279c44c2d74c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6ddb71a5d753ece9b5a44761a67dd901c107303a97a4278c546279c44c2d74c", kill_on_drop: false }`
[INFO] [stdout] f6ddb71a5d753ece9b5a44761a67dd901c107303a97a4278c546279c44c2d74c