[INFO] fetching crate avfoundation 0.1.3...
[INFO] testing avfoundation-0.1.3 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate avfoundation 0.1.3 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate avfoundation 0.1.3
[INFO] finished tweaking crates.io crate avfoundation 0.1.3
[INFO] tweaked toml for crates.io crate avfoundation 0.1.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate avfoundation 0.1.3 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate avfoundation 0.1.3 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 30361f7f7c294b1ecd524e1d954ec3f0f56f5924d8517684787cd9e562e51098
[INFO] running `Command { std: "docker" "start" "-a" "30361f7f7c294b1ecd524e1d954ec3f0f56f5924d8517684787cd9e562e51098", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30361f7f7c294b1ecd524e1d954ec3f0f56f5924d8517684787cd9e562e51098", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30361f7f7c294b1ecd524e1d954ec3f0f56f5924d8517684787cd9e562e51098", kill_on_drop: false }`
[INFO] [stdout] 30361f7f7c294b1ecd524e1d954ec3f0f56f5924d8517684787cd9e562e51098
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] fa2800a9b76d7fb0d5bb34f24b7a632a478c1be67367a6c26ddec6d3f97170f2
[INFO] running `Command { std: "docker" "start" "-a" "fa2800a9b76d7fb0d5bb34f24b7a632a478c1be67367a6c26ddec6d3f97170f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling core-foundation-sys v0.8.2
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling getrandom v0.2.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling block v0.1.6
[INFO] [stderr]    Compiling avfoundation v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Stdio` and `exit`
[INFO] [stdout]  --> build.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     exit,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 3 |     Command,
[INFO] [stdout] 4 |     Stdio,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apple_darwin_sign_file` is never used
[INFO] [stdout]  --> build.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn apple_darwin_sign_file(file_path: &std::path::Path) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling objc_exception v0.1.2
[INFO] [stderr]    Compiling core-foundation v0.9.1
[INFO] [stderr]    Compiling malloc_buf v0.0.6
[INFO] [stderr] warning: objc_exception@0.1.2: x86_64-linux-gnu-gcc: fatal error: cannot execute 'cc1obj': execvp: No such file or directory
[INFO] [stderr] warning: objc_exception@0.1.2: compilation terminated.
[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-d9ee1aeab65040c5/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   TARGET = Some("x86_64-unknown-linux-musl")
[INFO] [stderr]   OPT_LEVEL = Some("0")
[INFO] [stderr]   HOST = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr]   CC_x86_64-unknown-linux-musl = None
[INFO] [stderr]   CC_x86_64_unknown_linux_musl = None
[INFO] [stderr]   TARGET_CC = None
[INFO] [stderr]   CC = None
[INFO] [stderr]   CROSS_COMPILE = None
[INFO] [stderr]   CFLAGS_x86_64-unknown-linux-musl = None
[INFO] [stderr]   CFLAGS_x86_64_unknown_linux_musl = None
[INFO] [stderr]   TARGET_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,sse,sse2,x87")
[INFO] [stderr]   running: "musl-gcc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-m64" "-Wall" "-Wextra" "-o" "/opt/rustwide/target/x86_64-unknown-linux-musl/debug/build/objc_exception-007997d8adb50a33/out/extern/exception.o" "-c" "extern/exception.m"
[INFO] [stderr]   cargo:warning=x86_64-linux-gnu-gcc: fatal error: cannot execute 'cc1obj': execvp: No such file or directory
[INFO] [stderr]   cargo:warning=compilation terminated.
[INFO] [stderr]   exit status: 1
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   error occurred: Command "musl-gcc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-m64" "-Wall" "-Wextra" "-o" "/opt/rustwide/target/x86_64-unknown-linux-musl/debug/build/objc_exception-007997d8adb50a33/out/extern/exception.o" "-c" "extern/exception.m" with args "musl-gcc" did not execute successfully (status code exit status: 1).
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "fa2800a9b76d7fb0d5bb34f24b7a632a478c1be67367a6c26ddec6d3f97170f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa2800a9b76d7fb0d5bb34f24b7a632a478c1be67367a6c26ddec6d3f97170f2", kill_on_drop: false }`
[INFO] [stdout] fa2800a9b76d7fb0d5bb34f24b7a632a478c1be67367a6c26ddec6d3f97170f2