[INFO] cloning repository https://github.com/MonarchRyuzaki/learning-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MonarchRyuzaki/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMonarchRyuzaki%2Flearning-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMonarchRyuzaki%2Flearning-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0aebb3a553ca3db7b145660d65235cc177189f45
[INFO] checking MonarchRyuzaki/learning-rust against 0b63defc8fd68957c635fe61f097b84df8fd9611 for pr-154715
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMonarchRyuzaki%2Flearning-rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/MonarchRyuzaki/learning-rust
[INFO] finished tweaking git repo https://github.com/MonarchRyuzaki/learning-rust
[INFO] tweaked toml for git repo https://github.com/MonarchRyuzaki/learning-rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MonarchRyuzaki/learning-rust on toolchain 0b63defc8fd68957c635fe61f097b84df8fd9611
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0b63defc8fd68957c635fe61f097b84df8fd9611" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/MonarchRyuzaki/learning-rust 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" "+0b63defc8fd68957c635fe61f097b84df8fd9611" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded trpl v0.3.0
[INFO] [stderr]   Downloaded cc v1.2.67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:00c5645b54fe3ce5dae1417175e3c7fb6a6646c021d554ecd63a097b8b9f3602" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 161a2f5c2ce6399bb29636a62ffb1dd11fb7c2ec52b8d97a30f07f07513ab9c1
[INFO] running `Command { std: "docker" "start" "161a2f5c2ce6399bb29636a62ffb1dd11fb7c2ec52b8d97a30f07f07513ab9c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "161a2f5c2ce6399bb29636a62ffb1dd11fb7c2ec52b8d97a30f07f07513ab9c1", 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" "161a2f5c2ce6399bb29636a62ffb1dd11fb7c2ec52b8d97a30f07f07513ab9c1" "/opt/rustwide/cargo-home/bin/cargo" "+0b63defc8fd68957c635fe61f097b84df8fd9611" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "161a2f5c2ce6399bb29636a62ffb1dd11fb7c2ec52b8d97a30f07f07513ab9c1", 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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "161a2f5c2ce6399bb29636a62ffb1dd11fb7c2ec52b8d97a30f07f07513ab9c1" "/opt/rustwide/cargo-home/bin/cargo" "+0b63defc8fd68957c635fe61f097b84df8fd9611" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.46
[INFO] [stderr]    Compiling zerocopy v0.8.54
[INFO] [stderr]    Compiling libc v0.2.186
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling siphasher v1.0.3
[INFO] [stderr]    Compiling shlex v2.0.1
[INFO] [stderr]     Checking stable_deref_trait v1.2.1
[INFO] [stderr]     Checking smallvec v1.15.2
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking pin-project-lite v0.2.17
[INFO] [stderr]     Checking futures-core v0.3.32
[INFO] [stderr]     Checking bytes v1.12.1
[INFO] [stderr]     Checking itoa v1.0.18
[INFO] [stderr]    Compiling rustls v0.23.42
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]     Checking futures-sink v0.3.32
[INFO] [stderr]    Compiling cc v1.2.67
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]     Checking futures-channel v0.3.32
[INFO] [stderr]     Checking socket2 v0.6.5
[INFO] [stderr]     Checking mio v1.2.2
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]     Checking once_cell v1.21.4
[INFO] [stderr]     Checking writeable v0.6.3
[INFO] [stderr]     Checking litemap v0.8.2
[INFO] [stderr]     Checking futures-task v0.3.32
[INFO] [stderr]     Checking futures-io v0.3.32
[INFO] [stderr]     Checking memchr v2.8.3
[INFO] [stderr]     Checking slab v0.4.12
[INFO] [stderr]     Checking utf8_iter v1.0.4
[INFO] [stderr]     Checking http v1.4.2
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]     Checking serde_core v1.0.228
[INFO] [stderr]     Checking tokio v1.53.0
[INFO] [stderr]    Compiling syn v2.0.118
[INFO] [stderr]     Checking percent-encoding v2.3.2
[INFO] [stderr]     Checking new_debug_unreachable v1.0.6
[INFO] [stderr]     Checking zeroize v1.9.0
[INFO] [stderr]     Checking icu_normalizer_data v2.2.0
[INFO] [stderr]     Checking rustls-pki-types v1.15.0
[INFO] [stderr]     Checking icu_properties_data v2.2.0
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking untrusted v0.9.0
[INFO] [stderr]     Checking lock_api v0.4.14
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking tower-service v0.3.3
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking log v0.4.33
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking try-lock v0.2.5
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking futf v0.1.5
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]     Checking form_urlencoded v1.2.2
[INFO] [stderr]     Checking tracing-core v0.1.36
[INFO] [stderr]     Checking httparse v1.10.1
[INFO] [stderr]     Checking atomic-waker v1.1.2
[INFO] [stderr]     Checking bitflags v2.13.1
[INFO] [stderr]     Checking http-body v1.1.0
[INFO] [stderr]     Checking dtoa v1.0.11
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]     Checking tendril v0.4.3
[INFO] [stderr]     Checking dtoa-short v0.3.5
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking string_cache v0.8.9
[INFO] [stderr]     Checking sync_wrapper v1.0.2
[INFO] [stderr]     Checking tower-layer v0.3.3
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking ipnet v2.12.0
[INFO] [stderr]     Checking base64 v0.22.1
[INFO] [stderr]     Checking phf v0.10.1
[INFO] [stderr]     Checking getrandom v0.3.4
[INFO] [stderr]     Checking webpki-roots v1.0.8
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking servo_arc v0.3.0
[INFO] [stderr]     Checking unicode-width v0.2.2
[INFO] [stderr]     Checking ryu v1.0.23
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking http-body-util v0.1.4
[INFO] [stderr]     Checking ego-tree v0.6.3
[INFO] [stderr]     Checking object-oriented-pattern v0.1.0 (/opt/rustwide/workdir/object-oriented-pattern)
[INFO] [stderr]     Checking getopts v0.2.24
[INFO] [stdout] warning: unused variable: `post`
[INFO] [stdout]   --> object-oriented-pattern/src/lib.rs:38:27
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn content<'a>(&self, post: &'a Post) -> &'a str {
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_post`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking web-server v0.1.0 (/opt/rustwide/workdir/web-server)
[INFO] [stderr]     Checking minigrep v0.1.0 (/opt/rustwide/workdir/minigrep)
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stdout] warning: unused variable: `post`
[INFO] [stdout]   --> object-oriented-pattern/src/lib.rs:38:27
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn content<'a>(&self, post: &'a Post) -> &'a str {
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_post`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking exercises v0.0.0 (/opt/rustwide/workdir/rustlings)
[INFO] [stderr]     Checking slice_type v0.1.0 (/opt/rustwide/workdir/slice_type)
[INFO] [stdout] warning: function `first_word` is never used
[INFO] [stdout]  --> slice_type/src/main.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn first_word(s: &String) -> usize {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `first_word_slice` is never used
[INFO] [stdout]   --> slice_type/src/main.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn first_word_slice(s: &str) -> &str {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::arch::global_asm`
[INFO] [stdout]  --> rustlings/exercises/08_enums/enums3.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::arch::global_asm;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking variables_functions v0.1.0 (/opt/rustwide/workdir/variables_functions)
[INFO] [stdout] warning: unnecessary braces around `for` iterator expression
[INFO] [stdout]   --> variables_functions/src/main.rs:25:15
[INFO] [stdout]    |
[INFO] [stdout] 25 |     for _i in { 2..number + 1 } {
[INFO] [stdout]    |               ^^             ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 25 -     for _i in { 2..number + 1 } {
[INFO] [stdout] 25 +     for _i in 2..number + 1 {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking hello_world v0.1.0 (/opt/rustwide/workdir/hello_world)
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]   --> variables_functions/src/main.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let mut c = 0;
[INFO] [stdout]    |                 ^ this value is reassigned later and never used
[INFO] [stdout] 25 |     for _i in { 2..number + 1 } {
[INFO] [stdout] 26 |         c = a + b;
[INFO] [stdout]    |         --------- `c` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `zerocopy` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/0b63defc8fd68957c635fe61f097b84df8fd9611/bin/rustc --crate-name zerocopy --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/zerocopy-0.8.54/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="simd"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("__internal_use_only_features_that_work_on_stable", "alloc", "derive", "float-nightly", "simd", "simd-nightly", "std", "zerocopy-derive"))' -C metadata=4f4e57c4792b83fb -C extra-filename=-7a36d67d81776ba9 --out-dir /opt/rustwide/target/debug/build/zerocopy/7a36d67d81776ba9/out --cap-lints allow --cap-lints=forbid --check-cfg 'cfg(no_zerocopy_simd_x86_avx12_1_89_0)' --check-cfg 'cfg(rust, values("1.89.0"))' --check-cfg 'cfg(no_zerocopy_core_error_1_81_0)' --check-cfg 'cfg(rust, values("1.81.0"))' --check-cfg 'cfg(no_zerocopy_diagnostic_on_unimplemented_1_78_0)' --check-cfg 'cfg(rust, values("1.78.0"))' --check-cfg 'cfg(no_zerocopy_generic_bounds_in_const_fn_1_61_0)' --check-cfg 'cfg(rust, values("1.61.0"))' --check-cfg 'cfg(no_zerocopy_target_has_atomics_1_60_0)' --check-cfg 'cfg(rust, values("1.60.0"))' --check-cfg 'cfg(no_zerocopy_aarch64_simd_1_59_0)' --check-cfg 'cfg(rust, values("1.59.0"))' --check-cfg 'cfg(no_zerocopy_aarch64_simd_be_1_87_0)' --check-cfg 'cfg(rust, values("1.87.0"))' --check-cfg 'cfg(no_zerocopy_panic_in_const_and_vec_try_reserve_1_57_0)' --check-cfg 'cfg(rust, values("1.57.0"))' --check-cfg 'cfg(doc_cfg)' --check-cfg 'cfg(kani)' --check-cfg 'cfg(__ZEROCOPY_INTERNAL_USE_ONLY_NIGHTLY_FEATURES_IN_TESTS)' --check-cfg 'cfg(__ZEROCOPY_INTERNAL_USE_ONLY_DEV_MODE)' --check-cfg 'cfg(coverage_nightly)' --check-cfg 'cfg(zerocopy_inline_always)' --check-cfg 'cfg(zerocopy_unstable_ptr)' --check-cfg 'cfg(zerocopy_unstable_linux)' --check-cfg 'cfg(no_fp_fmt_parse)'` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "161a2f5c2ce6399bb29636a62ffb1dd11fb7c2ec52b8d97a30f07f07513ab9c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "161a2f5c2ce6399bb29636a62ffb1dd11fb7c2ec52b8d97a30f07f07513ab9c1", kill_on_drop: false }`
[INFO] [stdout] 161a2f5c2ce6399bb29636a62ffb1dd11fb7c2ec52b8d97a30f07f07513ab9c1
