[INFO] fetching crate fuzzcheck 0.13.0...
[INFO] checking fuzzcheck-0.13.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate fuzzcheck 0.13.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate fuzzcheck 0.13.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate fuzzcheck 0.13.0
[INFO] tweaked toml for crates.io crate fuzzcheck 0.13.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fuzzcheck 0.13.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 46 packages to latest compatible versions
[INFO] [stderr]       Adding ahash v0.7.8 (available: v0.8.12)
[INFO] [stderr]       Adding bit-vec v0.6.3 (available: v0.8.0)
[INFO] [stderr]       Adding fastrand v1.9.0 (available: v2.3.0)
[INFO] [stderr]       Adding md5 v0.7.0 (available: v0.8.0)
[INFO] [stderr]       Adding nu-ansi-term v0.46.0 (available: v0.50.1)
[INFO] [stderr]       Adding object v0.29.0 (available: v0.37.3)
[INFO] [stderr]       Adding regex-syntax v0.6.29 (available: v0.8.6)
[INFO] [stderr]       Adding ron v0.7.1 (available: v0.10.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fuzzcheck_mutators_derive v0.13.0
[INFO] [stderr]   Downloaded fuzzcheck_common v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8acf7847c283639f331e2f237392eee5580ec0e5680622664d776a62cffc2ff4
[INFO] running `Command { std: "docker" "start" "-a" "8acf7847c283639f331e2f237392eee5580ec0e5680622664d776a62cffc2ff4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8acf7847c283639f331e2f237392eee5580ec0e5680622664d776a62cffc2ff4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8acf7847c283639f331e2f237392eee5580ec0e5680622664d776a62cffc2ff4", kill_on_drop: false }`
[INFO] [stdout] 8acf7847c283639f331e2f237392eee5580ec0e5680622664d776a62cffc2ff4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68f0204f8566c45428315bab25839050e441e40fd11546a1bb76971f148be37b
[INFO] running `Command { std: "docker" "start" "-a" "68f0204f8566c45428315bab25839050e441e40fd11546a1bb76971f148be37b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling pkg-config v0.3.32
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]     Checking unicode-width v0.2.1
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]    Compiling cc v1.2.34
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking getopts v0.2.23
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking rustc-demangle v0.1.26
[INFO] [stderr]     Checking fuzzcheck_common v0.13.0
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]     Checking object v0.29.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling libz-sys v1.1.22
[INFO] [stderr]    Compiling fuzzcheck v0.13.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking flate2 v1.1.2
[INFO] [stderr]    Compiling fuzzcheck_mutators_derive v0.13.0
[INFO] [stdout] error: let chains are only allowed in Rust 2024 or later
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/fuzzcheck_mutators_derive-0.13.0/src/lib.rs:337:8
[INFO] [stdout]     |
[INFO] [stdout] 337 |     if let Some(ident) = attribute.path.get_ident()
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr] error: could not compile `fuzzcheck_mutators_derive` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "68f0204f8566c45428315bab25839050e441e40fd11546a1bb76971f148be37b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68f0204f8566c45428315bab25839050e441e40fd11546a1bb76971f148be37b", kill_on_drop: false }`
[INFO] [stdout] 68f0204f8566c45428315bab25839050e441e40fd11546a1bb76971f148be37b