[INFO] fetching crate gtest_cpp 0.1.0...
[INFO] testing gtest_cpp-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate gtest_cpp 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate gtest_cpp 0.1.0
[INFO] finished tweaking crates.io crate gtest_cpp 0.1.0
[INFO] tweaked toml for crates.io crate gtest_cpp 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate gtest_cpp 0.1.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate gtest_cpp 0.1.0 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" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 725a296dc8c2f400ea9ea1e9812e3b1d624bc57aa873454ac2923f95d348ff0a
[INFO] running `Command { std: "docker" "start" "-a" "725a296dc8c2f400ea9ea1e9812e3b1d624bc57aa873454ac2923f95d348ff0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "725a296dc8c2f400ea9ea1e9812e3b1d624bc57aa873454ac2923f95d348ff0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "725a296dc8c2f400ea9ea1e9812e3b1d624bc57aa873454ac2923f95d348ff0a", kill_on_drop: false }`
[INFO] [stdout] 725a296dc8c2f400ea9ea1e9812e3b1d624bc57aa873454ac2923f95d348ff0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57c34a4af6848165d4b099db5080f4183af826bd10a6a6666c10a987065c5ebd
[INFO] running `Command { std: "docker" "start" "-a" "57c34a4af6848165d4b099db5080f4183af826bd10a6a6666c10a987065c5ebd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling winnow v0.7.13
[INFO] [stderr]    Compiling toml_writer v1.0.2
[INFO] [stderr]    Compiling build-rs v0.3.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling fs_extra v1.3.0
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling jobserver v0.1.33
[INFO] [stderr]    Compiling cc v1.2.34
[INFO] [stderr]    Compiling toml_parser v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling toml_datetime v0.7.0
[INFO] [stderr]    Compiling serde_spanned v1.0.0
[INFO] [stderr]    Compiling toml v0.9.5
[INFO] [stderr]    Compiling zanbil-build v0.1.0
[INFO] [stderr]    Compiling gtest_cpp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: gtest_cpp@0.1.0: Compiler family detection failed due to error: ToolNotFound: failed to find tool "zanbil_c++": No such file or directory (os error 2)
[INFO] [stderr] error: failed to run custom build command for `gtest_cpp 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/gtest_cpp-fa207d705a9890d1/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo::rerun-if-env-changed=CARGO_MANIFEST_LINKS
[INFO] [stderr]   cargo::rerun-if-env-changed=CARGO_MANIFEST_DIR
[INFO] [stderr]   cargo::rerun-if-changed=/opt/rustwide/workdir/Cargo.toml
[INFO] [stderr]   cargo::rerun-if-env-changed=OUT_DIR
[INFO] [stderr]   cargo::rerun-if-env-changed=ZANBIL_CXX
[INFO] [stderr]   cargo::rerun-if-env-changed=ZANBIL_CC
[INFO] [stderr]   cargo::rerun-if-env-changed=OUT_DIR
[INFO] [stderr]   cargo::metadata=ZANBIL_INCLUDE=aW5jbHVkZV9kaXJzID0gWyIvb3B0L3J1c3R3aWRlL3RhcmdldC9kZWJ1Zy9idWlsZC9ndGVzdF9jcHAtMTQ4OGQzMDJhNWVlYjFjMi9vdXQvaW5jbHVkZSJdCg==
[INFO] [stderr]   cargo::rerun-if-env-changed=CARGO_MANIFEST_DIR
[INFO] [stderr]   cargo::rerun-if-changed=src/gtest-matchers.cc
[INFO] [stderr]   cargo::rerun-if-changed=src/gtest.cc
[INFO] [stderr]   cargo::rerun-if-changed=src/gtest_main.cc
[INFO] [stderr]   cargo::rerun-if-changed=src/gtest-typed-test.cc
[INFO] [stderr]   cargo::rerun-if-changed=src/gtest-port.cc
[INFO] [stderr]   cargo::rerun-if-changed=src/gtest-assertion-result.cc
[INFO] [stderr]   cargo::rerun-if-changed=src/gtest-test-part.cc
[INFO] [stderr]   cargo::rerun-if-changed=src/gtest-printers.cc
[INFO] [stderr]   cargo::rerun-if-changed=src/gtest-death-test.cc
[INFO] [stderr]   cargo::rerun-if-changed=src/gtest-filepath.cc
[INFO] [stderr]   OUT_DIR = Some(/opt/rustwide/target/debug/build/gtest_cpp-1488d302a5eeb1c2/out)
[INFO] [stderr]   OPT_LEVEL = Some(0)
[INFO] [stderr]   cargo:rerun-if-env-changed=CC_ENABLE_DEBUG_OUTPUT
[INFO] [stderr]   cargo:warning=Compiler family detection failed due to error: ToolNotFound: failed to find tool "zanbil_c++": No such file or directory (os error 2)
[INFO] [stderr]   cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
[INFO] [stderr]   CRATE_CC_NO_DEFAULTS = None
[INFO] [stderr]   TARGET = Some(x86_64-unknown-linux-gnu)
[INFO] [stderr]   DEBUG = Some(true)
[INFO] [stderr]   CARGO_CFG_TARGET_FEATURE = Some(fxsr,sse,sse2)
[INFO] [stderr]   HOST = Some(x86_64-unknown-linux-gnu)
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS
[INFO] [stderr]   CFLAGS = None
[INFO] [stderr]   cargo:rerun-if-env-changed=HOST_CFLAGS
[INFO] [stderr]   HOST_CFLAGS = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS_x86_64_unknown_linux_gnu
[INFO] [stderr]   CFLAGS_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS_x86_64-unknown-linux-gnu
[INFO] [stderr]   CFLAGS_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   CARGO_ENCODED_RUSTFLAGS = Some(--cap-lints=warn)
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   error occurred in cc-rs: failed to find tool "zanbil_c++": No such file or directory (os error 2)
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] running `Command { std: "docker" "inspect" "57c34a4af6848165d4b099db5080f4183af826bd10a6a6666c10a987065c5ebd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57c34a4af6848165d4b099db5080f4183af826bd10a6a6666c10a987065c5ebd", kill_on_drop: false }`
[INFO] [stdout] 57c34a4af6848165d4b099db5080f4183af826bd10a6a6666c10a987065c5ebd