[INFO] cloning repository https://github.com/clvx/ultimate-rust-foundations
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/clvx/ultimate-rust-foundations" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclvx%2Fultimate-rust-foundations", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclvx%2Fultimate-rust-foundations'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f5bad8e96126feab0785b7d4bc7f8926be91c823
[INFO] testing clvx/ultimate-rust-foundations against 1.97.0-beta.6 for beta-1.98-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fclvx%2Fultimate-rust-foundations" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/clvx/ultimate-rust-foundations
[INFO] finished tweaking git repo https://github.com/clvx/ultimate-rust-foundations
[INFO] tweaked toml for git repo https://github.com/clvx/ultimate-rust-foundations written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/clvx/ultimate-rust-foundations on toolchain 1.97.0-beta.6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.97.0-beta.6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/clvx/ultimate-rust-foundations 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" "+1.97.0-beta.6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-compression v0.4.22
[INFO] [stderr]   Downloaded tower-http v0.6.5
[INFO] [stderr]   Downloaded tempfile v3.15.0
[INFO] [stderr]   Downloaded foldhash v0.1.4
[INFO] [stderr]   Downloaded sqlx-sqlite v0.8.3
[INFO] [stderr]   Downloaded sqlx-core v0.8.3
[INFO] [stderr]   Downloaded sqlx v0.8.3
[INFO] [stderr]   Downloaded sqlx-macros v0.8.3
[INFO] [stderr]   Downloaded sqlx-postgres v0.8.3
[INFO] [stderr]   Downloaded sqlx-macros-core v0.8.3
[INFO] [stderr]   Downloaded sqlx-mysql v0.8.3
[INFO] [stderr]   Downloaded rsa v0.9.7
[INFO] [stderr]   Downloaded axum-core v0.5.0
[INFO] [stderr]   Downloaded core_affinity v0.8.1
[INFO] [stderr]   Downloaded axum v0.8.1
[INFO] [stderr]   Downloaded thread-priority v1.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] d8655c11983dedbbbe21973594d7ea0add7a897370f2b950057188ac8b2fa4c4
[INFO] running `Command { std: "docker" "start" "d8655c11983dedbbbe21973594d7ea0add7a897370f2b950057188ac8b2fa4c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8655c11983dedbbbe21973594d7ea0add7a897370f2b950057188ac8b2fa4c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d8655c11983dedbbbe21973594d7ea0add7a897370f2b950057188ac8b2fa4c4" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8655c11983dedbbbe21973594d7ea0add7a897370f2b950057188ac8b2fa4c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d8655c11983dedbbbe21973594d7ea0add7a897370f2b950057188ac8b2fa4c4" "/opt/rustwide/cargo-home/bin/cargo" "+1.97.0-beta.6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling bytes v1.9.0
[INFO] [stderr]    Compiling itoa v1.0.14
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling log v0.4.25
[INFO] [stderr]    Compiling tracing-core v0.1.33
[INFO] [stderr]    Compiling socket2 v0.5.8
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling litemap v0.7.4
[INFO] [stderr]    Compiling allocator-api2 v0.2.21
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling foldhash v0.1.4
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling rustversion v1.0.19
[INFO] [stderr]    Compiling thiserror v2.0.11
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling cc v1.2.10
[INFO] [stderr]    Compiling bitflags v2.8.0
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling cpufeatures v0.2.16
[INFO] [stderr]    Compiling http v1.2.0
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling parking v2.2.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tokio v1.44.1
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling linux-raw-sys v0.4.15
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling http-body v1.0.1
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling flume v0.11.1
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling futures-intrusive v0.5.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr]    Compiling indexmap v2.7.1
[INFO] [stderr]    Compiling hashlink v0.10.0
[INFO] [stderr]    Compiling atoi v2.0.0
[INFO] [stderr]    Compiling event-listener v5.4.0
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling http v0.2.12
[INFO] [stderr]    Compiling unicase v2.8.1
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling dotenvy v0.15.7
[INFO] [stderr]    Compiling miniz_oxide v0.8.3
[INFO] [stderr]    Compiling brotli-decompressor v4.0.2
[INFO] [stderr]    Compiling axum-core v0.3.4
[INFO] [stderr]    Compiling rustls-pki-types v1.10.1
[INFO] [stderr]    Compiling axum v0.6.20
[INFO] [stderr]    Compiling mime_guess v2.0.5
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling openssl-sys v0.9.104
[INFO] [stderr]    Compiling libsqlite3-sys v0.30.1
[INFO] [stderr]    Compiling zstd-sys v2.0.15+zstd.1.5.7
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling time v0.3.41
[INFO] [stderr]    Compiling http-body v0.4.6
[INFO] [stderr]    Compiling rustls-pemfile v2.2.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling brotli v7.0.0
[INFO] [stderr]    Compiling openssl v0.10.68
[INFO] [stderr]    Compiling native-tls v0.2.12
[INFO] [stderr]    Compiling flate2 v1.0.35
[INFO] [stderr]    Compiling http-range-header v0.4.2
[INFO] [stderr]    Compiling dashmap v6.1.0
[INFO] [stderr]    Compiling core_affinity v0.8.1
[INFO] [stderr]    Compiling thread-priority v1.2.0
[INFO] [stderr]    Compiling affinity v0.1.0 (/opt/rustwide/workdir/foundations/session2/affinity)
[INFO] [stderr]    Compiling threadpool v0.1.0 (/opt/rustwide/workdir/foundations/session2/threadpool)
[INFO] [stderr]    Compiling rwlocks v0.1.0 (/opt/rustwide/workdir/foundations/session2/rwlocks)
[INFO] [stderr]    Compiling traits v0.1.0 (/opt/rustwide/workdir/foundations/session4/traits)
[INFO] [stdout] warning: unused import: `rc::Rc`
[INFO] [stdout]  --> foundations/session4/traits/src/main.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt::Debug, rc::Rc};
[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 variable: `animal`
[INFO] [stdout]   --> foundations/session4/traits/src/main.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let animal = get_animal(); // impl Animal for Cat
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_animal`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `DebuggableClonableAnimal` is never used
[INFO] [stdout]   --> foundations/session4/traits/src/main.rs:31:7
[INFO] [stdout]    |
[INFO] [stdout] 31 | trait DebuggableClonableAnimal: Animal+Debug+Clone {}
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `HIGH_COUNT` is never used
[INFO] [stdout]  --> foundations/session2/tprio/src/main.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | static HIGH_COUNT: AtomicI32 = AtomicI32::new(0);
[INFO] [stdout]   |        ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling save_dynamic_bytes v0.1.0 (/opt/rustwide/workdir/foundations/session4/save_dynamic_bytes)
[INFO] [stderr]    Compiling dashing v0.1.0 (/opt/rustwide/workdir/foundations/session2/dashing)
[INFO] [stderr]    Compiling tprio v0.1.0 (/opt/rustwide/workdir/foundations/session2/tprio)
[INFO] [stderr]    Compiling workers v0.1.0 (/opt/rustwide/workdir/foundations/session2/workers)
[INFO] [stderr]    Compiling mutexes v0.1.0 (/opt/rustwide/workdir/foundations/session2/mutexes)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]  --> foundations/session2/mutexes/src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     for i in 0..10 {
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling generics v0.1.0 (/opt/rustwide/workdir/foundations/session4/generics_and_iterators)
[INFO] [stderr]    Compiling external_arc_mutex v0.1.0 (/opt/rustwide/workdir/foundations/session4/external_arc_mutex)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> foundations/session4/generics_and_iterators/src/main.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn iter(&self) -> HashMapBucketIter<K, V> {
[INFO] [stdout]    |             ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |
[INFO] [stdout]    |             the lifetime is elided 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] 32 |     fn iter(&self) -> HashMapBucketIter<'_, K, V> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling divide_work v0.1.0 (/opt/rustwide/workdir/foundations/session2/divide_work)
[INFO] [stderr]    Compiling deadlocks v0.1.0 (/opt/rustwide/workdir/foundations/session2/deadlocks)
[INFO] [stderr]    Compiling linked_list v0.1.0 (/opt/rustwide/workdir/foundations/session4/linked_list)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> foundations/session4/linked_list/src/main.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Strong(Rc<Node>), // Strong reference to the next node, which increases the 
[INFO] [stdout]    |     ------ ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NextNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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] 14 -     Strong(Rc<Node>), // Strong reference to the next node, which increases the 
[INFO] [stdout] 14 +     Strong(()), // Strong reference to the next node, which increases the 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> foundations/session4/linked_list/src/main.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Weak(Weak<Node>), // Weak reference to the next node, which does not increase the reference
[INFO] [stdout]    |     ---- ^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NextNode` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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] 16 -     Weak(Weak<Node>), // Weak reference to the next node, which does not increase the reference
[INFO] [stdout] 16 +     Weak(()), // Weak reference to the next node, which does not increase the reference
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling footgun v0.1.0 (/opt/rustwide/workdir/foundations/session2/footgun)
[INFO] [stderr]    Compiling operator_overloading v0.1.0 (/opt/rustwide/workdir/foundations/session4/operator_overloading)
[INFO] [stderr]    Compiling tempfile v3.15.0
[INFO] [stderr]    Compiling parking v0.1.0 (/opt/rustwide/workdir/foundations/session2/parking)
[INFO] [stderr]    Compiling refcount v0.1.0 (/opt/rustwide/workdir/foundations/session4/refcount)
[INFO] [stderr]    Compiling variables v0.1.0 (/opt/rustwide/workdir/foundations/session1/variables)
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling scoped_threads v0.1.0 (/opt/rustwide/workdir/foundations/session2/scoped_threads)
[INFO] [stderr] error: could not compile `brotli` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.97.0-beta.6-x86_64-unknown-linux-gnu/bin/rustc --crate-name brotli --edition=2015 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/brotli-7.0.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="alloc-stdlib"' --cfg 'feature="default"' --cfg 'feature="std"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("alloc-stdlib", "benchmark", "billing", "default", "disable-timer", "disallow_large_window_size", "external-literal-probability", "ffi-api", "float64", "floating_point_context_mixing", "no-stdlib-ffi-binding", "pass-through-ffi-panics", "seccomp", "sha2", "simd", "std", "validation", "vector_scratch_space"))' -C metadata=1aeecd2a0ee94742 -C extra-filename=-e07809fb8122bfc3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern alloc_no_stdlib=/opt/rustwide/target/debug/deps/liballoc_no_stdlib-118b0458ceca2dd8.rmeta --extern alloc_stdlib=/opt/rustwide/target/debug/deps/liballoc_stdlib-4aac9f1b7fbf996b.rmeta --extern brotli_decompressor=/opt/rustwide/target/debug/deps/libbrotli_decompressor-27a374f8f1732b74.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d8655c11983dedbbbe21973594d7ea0add7a897370f2b950057188ac8b2fa4c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8655c11983dedbbbe21973594d7ea0add7a897370f2b950057188ac8b2fa4c4", kill_on_drop: false }`
[INFO] [stdout] d8655c11983dedbbbe21973594d7ea0add7a897370f2b950057188ac8b2fa4c4
