[INFO] fetching crate uir-core 0.0.0...
[INFO] checking uir-core-0.0.0 against try#e071e73523bfcdcab2878dbf652ac8ebb9b9eee4 for pr-144386
[INFO] extracting crate uir-core 0.0.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate uir-core 0.0.0
[INFO] finished tweaking crates.io crate uir-core 0.0.0
[INFO] tweaked toml for crates.io crate uir-core 0.0.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate uir-core 0.0.0 on toolchain e071e73523bfcdcab2878dbf652ac8ebb9b9eee4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e071e73523bfcdcab2878dbf652ac8ebb9b9eee4" "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" "+e071e73523bfcdcab2878dbf652ac8ebb9b9eee4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 17 packages to latest compatible versions
[INFO] [stderr]       Adding downcast-rs v1.2.1 (available: v2.0.1)
[INFO] [stderr]       Adding rustc-hash v1.1.0 (available: v2.1.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e071e73523bfcdcab2878dbf652ac8ebb9b9eee4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+e071e73523bfcdcab2878dbf652ac8ebb9b9eee4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 456145f2d93cc10bdc7139f8cd37d623b171ab057b334647520facd649a294a4
[INFO] running `Command { std: "docker" "start" "-a" "456145f2d93cc10bdc7139f8cd37d623b171ab057b334647520facd649a294a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "456145f2d93cc10bdc7139f8cd37d623b171ab057b334647520facd649a294a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "456145f2d93cc10bdc7139f8cd37d623b171ab057b334647520facd649a294a4", kill_on_drop: false }`
[INFO] [stdout] 456145f2d93cc10bdc7139f8cd37d623b171ab057b334647520facd649a294a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+e071e73523bfcdcab2878dbf652ac8ebb9b9eee4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 008765d05f5814c29d1d2b915ba13a6230ceefc02a15c05f50e850c94617b34d
[INFO] running `Command { std: "docker" "start" "-a" "008765d05f5814c29d1d2b915ba13a6230ceefc02a15c05f50e850c94617b34d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking downcast-rs v1.2.1
[INFO] [stderr]     Checking generational-arena v0.2.9
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling linkme-impl v0.2.10
[INFO] [stderr]    Compiling intertrait-macros v0.2.2
[INFO] [stderr]     Checking linkme v0.2.10
[INFO] [stderr]     Checking intertrait v0.2.2
[INFO] [stderr]     Checking uir-core v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/operations/mod.rs:37:19
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/operations/mod.rs:37:19
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an enum
[INFO] [stdout]  --> src/errors.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Error {
[INFO] [stdout]   | ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/lib.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![warn(missing_docs, rustdoc::missing_crate_level_docs)]
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a variant
[INFO] [stdout]  --> src/errors.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     UnknownError
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a type alias
[INFO] [stdout]  --> src/errors.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub type Result<T> = std::result::Result<T, Error>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a type alias
[INFO] [stdout]  --> src/arena/mod.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub type ArenaCell<T> = generational_arena::Arena<RefCell<T>>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for an enum
[INFO] [stdout]  --> src/errors.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Error {
[INFO] [stdout]   | ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/lib.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![warn(missing_docs, rustdoc::missing_crate_level_docs)]
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a type alias
[INFO] [stdout]  --> src/arena/mod.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type ArenaIndex = generational_arena::Index;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a variant
[INFO] [stdout]  --> src/errors.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     UnknownError
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a type alias
[INFO] [stdout]  --> src/errors.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub type Result<T> = std::result::Result<T, Error>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a type alias
[INFO] [stdout]  --> src/arena/mod.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub type ArenaCell<T> = generational_arena::Arena<RefCell<T>>;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a type alias
[INFO] [stdout]  --> src/arena/mod.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type ArenaIndex = generational_arena::Index;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.99s
[INFO] running `Command { std: "docker" "inspect" "008765d05f5814c29d1d2b915ba13a6230ceefc02a15c05f50e850c94617b34d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "008765d05f5814c29d1d2b915ba13a6230ceefc02a15c05f50e850c94617b34d", kill_on_drop: false }`
[INFO] [stdout] 008765d05f5814c29d1d2b915ba13a6230ceefc02a15c05f50e850c94617b34d