[INFO] updating cached repository https://github.com/grenlight/fluid-webgpu
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/grenlight/fluid-webgpu
[INFO] [stderr]    4fb99f6..92ca7ad  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 92ca7ad5cb3807070084d2239b20cce99e95ad35
[INFO] checking grenlight/fluid-webgpu against try#bcff76bad586cfb6874f179a4b66448e6b8a832c for pr-66919
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrenlight%2Ffluid-webgpu" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/grenlight/fluid-webgpu on toolchain bcff76bad586cfb6874f179a4b66448e6b8a832c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bcff76bad586cfb6874f179a4b66448e6b8a832c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/grenlight/fluid-webgpu
[INFO] finished tweaking git repo https://github.com/grenlight/fluid-webgpu
[INFO] tweaked toml for git repo https://github.com/grenlight/fluid-webgpu written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/grenlight/fluid-webgpu already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bcff76bad586cfb6874f179a4b66448e6b8a832c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating git repository `https://github.com/grenlight/wgpu`
[INFO] [stderr]     Updating git repository `https://github.com/grenlight/idroid`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bcff76bad586cfb6874f179a4b66448e6b8a832c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1f98ec4f422351777e232c993485faaafee5616d7702277ca40e5c8f985ab641
[INFO] running `"docker" "start" "-a" "1f98ec4f422351777e232c993485faaafee5616d7702277ca40e5c8f985ab641"`
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]    Compiling objc_exception v0.1.2
[INFO] [stderr]    Compiling shaderc-sys v0.6.1
[INFO] [stderr]     Checking raw-window-handle v0.3.2
[INFO] [stderr]     Checking relevant v0.4.2
[INFO] [stderr]     Checking malloc_buf v0.0.6
[INFO] [stderr]     Checking x11 v2.18.1
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]     Checking ash v0.29.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling palette_derive v0.4.1
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking calloop v0.4.4
[INFO] [stderr]     Checking wayland-commons v0.23.6
[INFO] [stderr]     Checking rayon-core v1.6.1
[INFO] [stderr]    Compiling palette v0.4.1
[INFO] [stderr]     Checking nalgebra v0.19.0
[INFO] [stderr]     Checking gfx-hal v0.4.1
[INFO] [stderr] error: failed to run custom build command for `objc_exception v0.1.2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/objc_exception-8961e9789bb4e6c9/build-script-build` (exit code: 1)
[INFO] [stderr] --- stdout
[INFO] [stderr] TARGET = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] OPT_LEVEL = Some("0")
[INFO] [stderr] HOST = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr] CC_x86_64-unknown-linux-gnu = None
[INFO] [stderr] CC_x86_64_unknown_linux_gnu = None
[INFO] [stderr] HOST_CC = None
[INFO] [stderr] CC = None
[INFO] [stderr] CFLAGS_x86_64-unknown-linux-gnu = None
[INFO] [stderr] CFLAGS_x86_64_unknown_linux_gnu = None
[INFO] [stderr] HOST_CFLAGS = None
[INFO] [stderr] CFLAGS = None
[INFO] [stderr] CRATE_CC_NO_DEFAULTS = None
[INFO] [stderr] DEBUG = Some("true")
[INFO] [stderr] CARGO_CFG_TARGET_FEATURE = Some("fxsr,mmx,sse,sse2")
[INFO] [stderr] running: "cc" "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-m64" "-Wall" "-Wextra" "-o" "/opt/rustwide/target/debug/build/objc_exception-d4810bb4fb80b839/out/extern/exception.o" "-c" "extern/exception.m"
[INFO] [stderr] cargo:warning=cc: error trying to exec 'cc1obj': execvp: No such file or directory
[INFO] [stderr] exit code: 1
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] error occurred: Command "cc" "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-m64" "-Wall" "-Wextra" "-o" "/opt/rustwide/target/debug/build/objc_exception-d4810bb4fb80b839/out/extern/exception.o" "-c" "extern/exception.m" with args "cc" did not execute successfully (status code exit code: 1).
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "1f98ec4f422351777e232c993485faaafee5616d7702277ca40e5c8f985ab641"`
[INFO] running `"docker" "rm" "-f" "1f98ec4f422351777e232c993485faaafee5616d7702277ca40e5c8f985ab641"`
[INFO] [stdout] 1f98ec4f422351777e232c993485faaafee5616d7702277ca40e5c8f985ab641