[INFO] fetching crate btrfsutil 0.2.0...
[INFO] checking btrfsutil-0.2.0 against nightly-2024-02-05 for check-cfg
[INFO] extracting crate btrfsutil 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate btrfsutil 0.2.0 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate btrfsutil 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate btrfsutil 0.2.0
[INFO] tweaked toml for crates.io crate btrfsutil 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate btrfsutil 0.2.0 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" "+nightly-2024-02-05" "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]  Downloading crates ...
[INFO] [stderr]   Downloaded prettyplease v0.2.12
[INFO] [stderr]   Downloaded bindgen v0.66.1
[INFO] [stderr]   Downloaded serde v1.0.178
[INFO] [stderr]   Downloaded serde_derive v1.0.178
[INFO] [stderr]   Downloaded loopdev v0.4.0
[INFO] [stderr]   Downloaded tempfile v3.7.0
[INFO] [stderr]   Downloaded btrfsutil-sys v1.3.0
[INFO] [stderr]   Downloaded libmount v0.1.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b6c52a61cde0d2bbba0e2bfc3c1df318fa5de1590163583f280f56344eb8e3d
[INFO] running `Command { std: "docker" "start" "-a" "0b6c52a61cde0d2bbba0e2bfc3c1df318fa5de1590163583f280f56344eb8e3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b6c52a61cde0d2bbba0e2bfc3c1df318fa5de1590163583f280f56344eb8e3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b6c52a61cde0d2bbba0e2bfc3c1df318fa5de1590163583f280f56344eb8e3d", kill_on_drop: false }`
[INFO] [stdout] 0b6c52a61cde0d2bbba0e2bfc3c1df318fa5de1590163583f280f56344eb8e3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0de3877e9d04ae38bb16744a0c2ed02e1a34ed1cf6631c62acf340f5a0796e20
[INFO] running `Command { std: "docker" "start" "-a" "0de3877e9d04ae38bb16744a0c2ed02e1a34ed1cf6631c62acf340f5a0796e20", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling regex-syntax v0.7.4
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling clang-sys v1.6.1
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling prettyplease v0.2.12
[INFO] [stderr]    Compiling serde v1.0.178
[INFO] [stderr]    Compiling bindgen v0.66.1
[INFO] [stderr]    Compiling serde_derive v1.0.178
[INFO] [stderr]    Compiling bindgen v0.59.2
[INFO] [stderr]    Compiling log v0.4.19
[INFO] [stderr]    Compiling bitflags v2.3.3
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling rustix v0.38.4
[INFO] [stderr]    Compiling thiserror v1.0.44
[INFO] [stderr]     Checking linux-raw-sys v0.4.3
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking fastrand v2.0.0
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]    Compiling syn v2.0.27
[INFO] [stderr]    Compiling which v4.4.0
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking errno v0.2.8
[INFO] [stderr]     Checking tempfile v3.7.0
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]    Compiling regex-automata v0.3.4
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling regex v1.9.1
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]     Checking libmount v0.1.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.44
[INFO] [stderr]    Compiling loopdev v0.4.0
[INFO] [stderr]    Compiling btrfsutil-sys v1.3.0
[INFO] [stderr]     Checking btrfsutil v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.88s
[INFO] running `Command { std: "docker" "inspect" "0de3877e9d04ae38bb16744a0c2ed02e1a34ed1cf6631c62acf340f5a0796e20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0de3877e9d04ae38bb16744a0c2ed02e1a34ed1cf6631c62acf340f5a0796e20", kill_on_drop: false }`
[INFO] [stdout] 0de3877e9d04ae38bb16744a0c2ed02e1a34ed1cf6631c62acf340f5a0796e20
[INFO] checking btrfsutil-0.2.0 against nightly-2024-02-05+rustflags=-Dunexpected_cfgs+cargoflags=-Zcheck-cfg for check-cfg
[INFO] extracting crate btrfsutil 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate btrfsutil 0.2.0 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate btrfsutil 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate btrfsutil 0.2.0
[INFO] tweaked toml for crates.io crate btrfsutil 0.2.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate btrfsutil 0.2.0 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" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b12f947c26bdf9510b70de1591317186fe7567519b5b3d5431c5fd87250bbef
[INFO] running `Command { std: "docker" "start" "-a" "5b12f947c26bdf9510b70de1591317186fe7567519b5b3d5431c5fd87250bbef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b12f947c26bdf9510b70de1591317186fe7567519b5b3d5431c5fd87250bbef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b12f947c26bdf9510b70de1591317186fe7567519b5b3d5431c5fd87250bbef", kill_on_drop: false }`
[INFO] [stdout] 5b12f947c26bdf9510b70de1591317186fe7567519b5b3d5431c5fd87250bbef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dunexpected_cfgs" "-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" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zcheck-cfg", kill_on_drop: false }`
[INFO] [stdout] 46945c4a6a42adbb1153951a7e1fc76ec3a073f032bf63755885e610f093e462
[INFO] running `Command { std: "docker" "start" "-a" "46945c4a6a42adbb1153951a7e1fc76ec3a073f032bf63755885e610f093e462", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling regex-syntax v0.7.4
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling prettyplease v0.2.12
[INFO] [stderr]    Compiling serde v1.0.178
[INFO] [stderr]    Compiling clang-sys v1.6.1
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling serde_derive v1.0.178
[INFO] [stderr]    Compiling bindgen v0.66.1
[INFO] [stderr]    Compiling log v0.4.19
[INFO] [stderr]    Compiling bitflags v2.3.3
[INFO] [stderr]    Compiling bindgen v0.59.2
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling rustix v0.38.4
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling thiserror v1.0.44
[INFO] [stderr]     Checking linux-raw-sys v0.4.3
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking fastrand v2.0.0
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]    Compiling syn v2.0.27
[INFO] [stderr]    Compiling which v4.4.0
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking errno v0.2.8
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking tempfile v3.7.0
[INFO] [stderr]    Compiling regex-automata v0.3.4
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling regex v1.9.1
[INFO] [stderr]     Checking libmount v0.1.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.44
[INFO] [stderr]    Compiling loopdev v0.4.0
[INFO] [stderr]    Compiling btrfsutil-sys v1.3.0
[INFO] [stderr]     Checking btrfsutil v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unexpected `cfg` condition name: `docsrs`
[INFO] [stdout]  --> src/lib.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(docsrs, feature(doc_cfg))]
[INFO] [stdout]   |             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `debug_assertions`, `doc`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `unix`, `windows`
[INFO] [stdout]   = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(docsrs)");` to the top of a `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]   = note: requested on the command line with `-D unexpected-cfgs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `docsrs`
[INFO] [stdout]  --> src/lib.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(docsrs, feature(doc_cfg))]
[INFO] [stdout]   |             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `debug_assertions`, `doc`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `unix`, `windows`
[INFO] [stdout]   = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(docsrs)");` to the top of a `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]   = note: requested on the command line with `-D unexpected-cfgs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `btrfsutil` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `btrfsutil` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "46945c4a6a42adbb1153951a7e1fc76ec3a073f032bf63755885e610f093e462", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46945c4a6a42adbb1153951a7e1fc76ec3a073f032bf63755885e610f093e462", kill_on_drop: false }`
[INFO] [stdout] 46945c4a6a42adbb1153951a7e1fc76ec3a073f032bf63755885e610f093e462
