[INFO] fetching crate custos-math 0.6.3...
[INFO] checking custos-math-0.6.3 against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] extracting crate custos-math 0.6.3 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate custos-math 0.6.3 on toolchain 4d1bd0db7f489b22c6d8aa2385937a95412c015b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate custos-math 0.6.3
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate custos-math 0.6.3
[INFO] tweaked toml for crates.io crate custos-math 0.6.3 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate custos-math 0.6.3 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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.51
[INFO] [stderr]   Downloaded matrixmultiply v0.3.2
[INFO] [stderr]   Downloaded libm v0.2.6
[INFO] [stderr]   Downloaded custos-macro v0.1.0
[INFO] [stderr]   Downloaded min-cl v0.1.2
[INFO] [stderr]   Downloaded custos v0.6.3
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0bd0e9c92d958829b504071f702bbeafd25cdfe83d01b1a802c5df9b6465424f
[INFO] running `Command { std: "docker" "start" "-a" "0bd0e9c92d958829b504071f702bbeafd25cdfe83d01b1a802c5df9b6465424f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bd0e9c92d958829b504071f702bbeafd25cdfe83d01b1a802c5df9b6465424f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bd0e9c92d958829b504071f702bbeafd25cdfe83d01b1a802c5df9b6465424f", kill_on_drop: false }`
[INFO] [stdout] 0bd0e9c92d958829b504071f702bbeafd25cdfe83d01b1a802c5df9b6465424f
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d021320e2dfa977be1d2b6f1bbf47dbf8c3bc45523d8e676709edbf56a8998a3
[INFO] running `Command { std: "docker" "start" "-a" "d021320e2dfa977be1d2b6f1bbf47dbf8c3bc45523d8e676709edbf56a8998a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling min-cl v0.1.2
[INFO] [stderr]    Compiling custos-math v0.6.3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling custos v0.6.3
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: LC_ALL="C" PATH="/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/lib/rustlib/x86_64-unknown-linux-gnu/bin:/opt/rustwide/cargo-home/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" VSLANG="1033" "cc" "-m64" "/tmp/rustcaC9JCa/symbols.o" "/opt/rustwide/target/debug/build/custos-0866bdf42b6e5e29/build_script_build-0866bdf42b6e5e29.build_script_build.ee26ff5d3fd2e056-cgu.0.rcgu.o" "/opt/rustwide/target/debug/build/custos-0866bdf42b6e5e29/build_script_build-0866bdf42b6e5e29.3ilekje4oo9t6a1m.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libmin_cl-7c067cc98a4a593c.rlib" "/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-ac8c01c554941eda.rlib" "/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-8658b562b4bc9014.rlib" "/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-3f17a82d6f357d02.rlib" "/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-b18e95f01f68fe15.rlib" "/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-f13c9e14ea01d467.rlib" "/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-5f665d37f127e827.rlib" "/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-36e065ac22f29782.rlib" "/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-2d131236edb9f3b1.rlib" "/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-84ab31faa4fd82ed.rlib" "/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-f1266d0fa705ff20.rlib" "/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-4a0ab320ded9b408.rlib" "/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-aea37e6b802c4566.rlib" "/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-06ef5b9b64386eaa.rlib" "/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-a099cfdcf5ac5c57.rlib" "/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-5f8c8143cdb8d04b.rlib" "/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-3bf59988464e229a.rlib" "/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9686387289eaa322.rlib" "/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-632ae0f28c5e55ff.rlib" "/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-8ebeba8f78436673.rlib" "-Wl,-Bdynamic" "-lOpenCL" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/4d1bd0db7f489b22c6d8aa2385937a95412c015b/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/build/custos-0866bdf42b6e5e29/build_script_build-0866bdf42b6e5e29" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lOpenCL: No such file or directory
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `custos` (build script) 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] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "d021320e2dfa977be1d2b6f1bbf47dbf8c3bc45523d8e676709edbf56a8998a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d021320e2dfa977be1d2b6f1bbf47dbf8c3bc45523d8e676709edbf56a8998a3", kill_on_drop: false }`
[INFO] [stdout] d021320e2dfa977be1d2b6f1bbf47dbf8c3bc45523d8e676709edbf56a8998a3
