[INFO] cloning repository https://github.com/f3rn0s/ebpf-cgroup-experiment
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/f3rn0s/ebpf-cgroup-experiment" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ff3rn0s%2Febpf-cgroup-experiment", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ff3rn0s%2Febpf-cgroup-experiment'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a8184b81e06a6c819e897509424f59dfaaec6dc3
[INFO] documenting f3rn0s/ebpf-cgroup-experiment against beta-2026-01-20 for beta-1.94-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ff3rn0s%2Febpf-cgroup-experiment" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/f3rn0s/ebpf-cgroup-experiment
[INFO] finished tweaking git repo https://github.com/f3rn0s/ebpf-cgroup-experiment
[INFO] tweaked toml for git repo https://github.com/f3rn0s/ebpf-cgroup-experiment written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/f3rn0s/ebpf-cgroup-experiment on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/f3rn0s/ebpf-cgroup-experiment 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" "+beta-2026-01-20" "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]     Updating git repository `https://github.com/libbpf/vmlinux.h.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vsprintf v2.0.0
[INFO] [stderr]   Downloaded find-msvc-tools v0.1.0
[INFO] [stderr]   Downloaded cc v1.2.35
[INFO] [stderr]   Downloaded libbpf-cargo v0.25.0
[INFO] [stderr]   Downloaded libbpf-rs v0.25.0
[INFO] [stderr]   Downloaded libbpf-sys v1.5.1+v1.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac84e12d8b47946a36bcec3d184a6a859f8ba5f6d00fa1930e99636091bc4a5e
[INFO] running `Command { std: "docker" "start" "-a" "ac84e12d8b47946a36bcec3d184a6a859f8ba5f6d00fa1930e99636091bc4a5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac84e12d8b47946a36bcec3d184a6a859f8ba5f6d00fa1930e99636091bc4a5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac84e12d8b47946a36bcec3d184a6a859f8ba5f6d00fa1930e99636091bc4a5e", kill_on_drop: false }`
[INFO] [stdout] ac84e12d8b47946a36bcec3d184a6a859f8ba5f6d00fa1930e99636091bc4a5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac2e9021c25658630e1eb9cc61799e78032f0de5d80f96628fae6b5d7f45bed2
[INFO] running `Command { std: "docker" "start" "-a" "ac2e9021c25658630e1eb9cc61799e78032f0de5d80f96628fae6b5d7f45bed2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling find-msvc-tools v0.1.0
[INFO] [stderr]    Compiling bitflags v2.9.4
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling camino v1.1.12
[INFO] [stderr]    Compiling anstyle-parse v0.2.7
[INFO] [stderr]    Compiling cc v1.2.35
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling anstyle-query v1.1.4
[INFO] [stderr]    Compiling anstyle v1.0.11
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling colorchoice v1.0.4
[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling rustix v1.0.8
[INFO] [stderr]    Compiling anstream v0.6.20
[INFO] [stderr]    Compiling clap_lex v0.7.5
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling linux-raw-sys v0.9.4
[INFO] [stderr]    Compiling clap_builder v4.5.46
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling chrono v0.4.41
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]    Compiling nu-ansi-term v0.50.1
[INFO] [stderr]    Compiling vsprintf v2.0.0
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling anyhow v1.0.99
[INFO] [stderr]    Compiling vmlinux v0.0.0 (https://github.com/libbpf/vmlinux.h.git?rev=83a228cf37fc65f2d14e4896a04922b5ee531a94#83a228cf)
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]    Compiling tracing-subscriber v0.3.20
[INFO] [stderr]    Compiling memmap2 v0.5.10
[INFO] [stderr]    Compiling tempfile v3.21.0
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling thiserror-impl v2.0.16
[INFO] [stderr]    Compiling clap_derive v4.5.45
[INFO] [stderr]    Compiling libbpf-sys v1.5.1+v1.5.1
[INFO] [stderr]    Compiling clap v4.5.46
[INFO] [stderr]     Checking libbpf-rs v0.25.0
[INFO] [stderr]    Compiling cargo-platform v0.1.9
[INFO] [stderr]    Compiling cargo_metadata v0.19.2
[INFO] [stderr]    Compiling libbpf-cargo v0.25.0
[INFO] [stderr]    Compiling runcargoslower v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `runcargoslower v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/runcargoslower-95b35f170a4b1547/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   error: 'rustfmt' is not installed for the toolchain 'beta-2026-01-20-x86_64-unknown-linux-gnu'.
[INFO] [stderr]   To install, run `rustup component add --toolchain beta-2026-01-20-x86_64-unknown-linux-gnu rustfmt`
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (985) panicked at build.rs:30:10:
[INFO] [stderr]   called `Result::unwrap()` on an `Err` value: failed to generate `/tmp/.tmpPIexoe/runcargoslower.o`
[INFO] [stderr] 
[INFO] [stderr]   Caused by:
[INFO] [stderr]       0: Failed to generate skeleton for /tmp/.tmpPIexoe/runcargoslower.o
[INFO] [stderr]       1: Failed to rustfmt: exit status: 1
[INFO] [stderr] 
[INFO] [stderr]   Stack backtrace:
[INFO] [stderr]      0: anyhow::error::<impl anyhow::Error>::msg
[INFO] [stderr]      1: libbpf_cargo::gen::try_rustfmt
[INFO] [stderr]      2: libbpf_cargo::gen::gen_skel
[INFO] [stderr]      3: libbpf_cargo::gen::gen_single
[INFO] [stderr]      4: libbpf_cargo::SkeletonBuilder::generate
[INFO] [stderr]      5: libbpf_cargo::SkeletonBuilder::build_and_generate
[INFO] [stderr]      6: build_script_build::main
[INFO] [stderr]      7: core::ops::function::FnOnce::call_once
[INFO] [stderr]      8: std::sys::backtrace::__rust_begin_short_backtrace
[INFO] [stderr]      9: std::rt::lang_start::{{closure}}
[INFO] [stderr]     10: core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once
[INFO] [stderr]                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     11: std::panicking::catch_unwind::do_call
[INFO] [stderr]                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stderr]     12: std::panicking::catch_unwind
[INFO] [stderr]                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stderr]     13: std::panic::catch_unwind
[INFO] [stderr]                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stderr]     14: std::rt::lang_start_internal::{{closure}}
[INFO] [stderr]                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/rt.rs:175:24
[INFO] [stderr]     15: std::panicking::catch_unwind::do_call
[INFO] [stderr]                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stderr]     16: std::panicking::catch_unwind
[INFO] [stderr]                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stderr]     17: std::panic::catch_unwind
[INFO] [stderr]                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stderr]     18: std::rt::lang_start_internal
[INFO] [stderr]                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/rt.rs:171:5
[INFO] [stderr]     19: std::rt::lang_start
[INFO] [stderr]     20: main
[INFO] [stderr]     21: <unknown>
[INFO] [stderr]     22: __libc_start_main
[INFO] [stderr]     23: _start
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x59fa6933cf92 - std::backtrace_rs::backtrace::libunwind::trace::hf0bd46b30bc61685
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x59fa6933cf92 - std::backtrace_rs::backtrace::trace_unsynchronized::h1d1fbb72ad89d7b7
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x59fa6933cf92 - std::sys::backtrace::_print_fmt::he38b6f68ca847f47
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x59fa6933cf92 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hb7e843cde1bc81a3
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x59fa6934d08a - core::fmt::rt::Argument::fmt::hc1dd77ac64f2688c
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x59fa6934d08a - core::fmt::write::h952c506e2dbe9cff
[INFO] [stderr]      6:     0x59fa69310d26 - std::io::default_write_fmt::h72db0b4dbd5dcfa2
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x59fa69310d26 - std::io::Write::write_fmt::hb496f2b9b027aa16
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]      8:     0x59fa6931e2c6 - std::sys::backtrace::BacktraceLock::print::h1079b82381c2c252
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x59fa6931e2c6 - std::panicking::default_hook::{{closure}}::h85cb76b8462c00f2
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x59fa6931e126 - std::panicking::default_hook::h0134d220cc034c02
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x59fa6931e50b - std::panicking::panic_with_hook::h8119b6db1fef734f
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x59fa6931e388 - std::panicking::panic_handler::{{closure}}::h24f5360b91482c0e
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x59fa6931b139 - std::sys::backtrace::__rust_end_short_backtrace::h4e60c5cbd1bd0108
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x59fa69304ffd - __rustc[e4c6931bd8050421]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x59fa6935072c - core::panicking::panic_fmt::hb1614a3ff6840071
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x59fa6934fe72 - core::result::unwrap_failed::h7d4c34940aded59c
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/result.rs:1867:5
[INFO] [stderr]     17:     0x59fa69265b0a - build_script_build::main::h9702e0e0435b9e77
[INFO] [stderr]     18:     0x59fa69265f33 - core::ops::function::FnOnce::call_once::hd7cf0475ec977354
[INFO] [stderr]     19:     0x59fa69265dc6 - std::sys::backtrace::__rust_begin_short_backtrace::h7ef9934bf49c50d7
[INFO] [stderr]     20:     0x59fa69265cd9 - std::rt::lang_start::{{closure}}::ha7e6559e331fef18
[INFO] [stderr]     21:     0x59fa69312496 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd1cc8864ab2ce613
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     22:     0x59fa69312496 - std::panicking::catch_unwind::do_call::h761b8a8d54647a61
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stderr]     23:     0x59fa69312496 - std::panicking::catch_unwind::hb78a0edcad597ebc
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stderr]     24:     0x59fa69312496 - std::panic::catch_unwind::hf40177800cac754b
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stderr]     25:     0x59fa69312496 - std::rt::lang_start_internal::{{closure}}::ha1b3ca2f45db2265
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/rt.rs:175:24
[INFO] [stderr]     26:     0x59fa69312496 - std::panicking::catch_unwind::do_call::hca68f60e509d57f2
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stderr]     27:     0x59fa69312496 - std::panicking::catch_unwind::h75a65b4419799b0f
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stderr]     28:     0x59fa69312496 - std::panic::catch_unwind::h56fc4c7ccdf741b6
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stderr]     29:     0x59fa69312496 - std::rt::lang_start_internal::h267ec6e0203f10ab
[INFO] [stderr]                                  at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/rt.rs:171:5
[INFO] [stderr]     30:     0x59fa69265cc1 - std::rt::lang_start::hf1b0f44dbcd1de52
[INFO] [stderr]     31:     0x59fa69266d85 - main
[INFO] [stderr]     32:     0x7fa3a49091ca - <unknown>
[INFO] [stderr]     33:     0x7fa3a490928b - __libc_start_main
[INFO] [stderr]     34:     0x59fa69264bb5 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "ac2e9021c25658630e1eb9cc61799e78032f0de5d80f96628fae6b5d7f45bed2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac2e9021c25658630e1eb9cc61799e78032f0de5d80f96628fae6b5d7f45bed2", kill_on_drop: false }`
[INFO] [stdout] ac2e9021c25658630e1eb9cc61799e78032f0de5d80f96628fae6b5d7f45bed2
