[INFO] fetching crate hashbrown 0.14.3...
[INFO] checking hashbrown-0.14.3 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate hashbrown 0.14.3 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate hashbrown 0.14.3 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hashbrown 0.14.3
[INFO] finished tweaking crates.io crate hashbrown 0.14.3
[INFO] tweaked toml for crates.io crate hashbrown 0.14.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 57 packages
[INFO] [stderr]       Adding ahash v0.7.8 (latest: v0.8.11)
[INFO] [stderr]       Adding bytecheck v0.6.12 (latest: v0.7.0)
[INFO] [stderr]       Adding bytecheck_derive v0.6.12 (latest: v0.7.0)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding ptr_meta v0.1.4 (latest: v0.2.0)
[INFO] [stderr]       Adding ptr_meta_derive v0.1.4 (latest: v0.2.0)
[INFO] [stderr]       Adding radium v0.7.0 (latest: v1.1.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding wyz v0.5.1 (latest: v0.6.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_test v1.0.176
[INFO] [stderr]   Downloaded rustc-std-workspace-core v1.0.0
[INFO] [stderr]   Downloaded rustc-std-workspace-alloc v1.0.0
[INFO] [stderr]   Downloaded compiler_builtins v0.1.108
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f91af88ed54d35686b1e90257a5859e06677a55a1fd79a91ced4187aa4adb3f
[INFO] running `Command { std: "docker" "start" "-a" "4f91af88ed54d35686b1e90257a5859e06677a55a1fd79a91ced4187aa4adb3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f91af88ed54d35686b1e90257a5859e06677a55a1fd79a91ced4187aa4adb3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f91af88ed54d35686b1e90257a5859e06677a55a1fd79a91ced4187aa4adb3f", kill_on_drop: false }`
[INFO] [stdout] 4f91af88ed54d35686b1e90257a5859e06677a55a1fd79a91ced4187aa4adb3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0da3914e740ec567d85297e838cbc9c592845c4367e89f945f962d736eb56e1
[INFO] running `Command { std: "docker" "start" "-a" "a0da3914e740ec567d85297e838cbc9c592845c4367e89f945f962d736eb56e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling bytecheck v0.6.12
[INFO] [stderr]    Compiling rend v0.4.2
[INFO] [stderr]     Checking simdutf8 v0.1.4
[INFO] [stderr]    Compiling rkyv v0.7.44
[INFO] [stderr]     Checking bumpalo v3.15.4
[INFO] [stderr]    Compiling ptr_meta_derive v0.1.4
[INFO] [stderr]    Compiling bytecheck_derive v0.6.12
[INFO] [stderr]     Checking ahash v0.8.11
[INFO] [stderr]    Compiling rkyv_derive v0.7.44
[INFO] [stderr]     Checking serde_test v1.0.176
[INFO] [stderr]     Checking ahash v0.7.8
[INFO] [stderr]     Checking hashbrown v0.14.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stdout] warning: the item `FromIterator` is imported redundantly
[INFO] [stdout]  --> src/map.rs:8:18
[INFO] [stdout]   |
[INFO] [stdout] 8 | use core::iter::{FromIterator, FusedIterator};
[INFO] [stdout]   |                  ^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/core/src/prelude/mod.rs:61:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `FromIterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromIterator` is imported redundantly
[INFO] [stdout]  --> src/set.rs:7:25
[INFO] [stdout]   |
[INFO] [stdout] 7 | use core::iter::{Chain, FromIterator, FusedIterator};
[INFO] [stdout]   |                         ^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/core/src/prelude/mod.rs:61:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `FromIterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ptr_meta v0.1.4
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromIterator` is imported redundantly
[INFO] [stdout]  --> src/map.rs:8:18
[INFO] [stdout]   |
[INFO] [stdout] 8 | use core::iter::{FromIterator, FusedIterator};
[INFO] [stdout]   |                  ^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/core/src/prelude/mod.rs:61:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `FromIterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromIterator` is imported redundantly
[INFO] [stdout]  --> src/set.rs:7:25
[INFO] [stdout]   |
[INFO] [stdout] 7 | use core::iter::{Chain, FromIterator, FusedIterator};
[INFO] [stdout]   |                         ^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/core/src/prelude/mod.rs:61:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `FromIterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]     --> src/set.rs:2837:34
[INFO] [stdout]      |
[INFO] [stdout] 2837 |         struct Foo(&'static str, i32);
[INFO] [stdout]      |                ---               ^^^
[INFO] [stdout]      |                |
[INFO] [stdout]      |                field in this struct
[INFO] [stdout]      |
[INFO] [stdout]      = note: `Foo` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]      |
[INFO] [stdout] 2837 |         struct Foo(&'static str, ());
[INFO] [stdout]      |                                  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.80s
[INFO] running `Command { std: "docker" "inspect" "a0da3914e740ec567d85297e838cbc9c592845c4367e89f945f962d736eb56e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0da3914e740ec567d85297e838cbc9c592845c4367e89f945f962d736eb56e1", kill_on_drop: false }`
[INFO] [stdout] a0da3914e740ec567d85297e838cbc9c592845c4367e89f945f962d736eb56e1