[INFO] fetching crate salmon 0.5.0...
[INFO] checking salmon-0.5.0 against beta for pr-78714
[INFO] extracting crate salmon 0.5.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate salmon 0.5.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate salmon 0.5.0
[INFO] finished tweaking crates.io crate salmon 0.5.0
[INFO] tweaked toml for crates.io crate salmon 0.5.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 82cf5f0df2256c1de4958002c906f05720682e5bd72c3d9de67b21af4c0d6bce
[INFO] running `Command { std: "docker" "start" "-a" "82cf5f0df2256c1de4958002c906f05720682e5bd72c3d9de67b21af4c0d6bce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82cf5f0df2256c1de4958002c906f05720682e5bd72c3d9de67b21af4c0d6bce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82cf5f0df2256c1de4958002c906f05720682e5bd72c3d9de67b21af4c0d6bce", kill_on_drop: false }`
[INFO] [stdout] 82cf5f0df2256c1de4958002c906f05720682e5bd72c3d9de67b21af4c0d6bce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3a4f674dbf5afa2208f3de5951ba5a6d5a3af0f757fbb1b7ab050c628988c2a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a3a4f674dbf5afa2208f3de5951ba5a6d5a3af0f757fbb1b7ab050c628988c2a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling procedural-masquerade v0.1.7
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking xml-rs v0.8.3
[INFO] [stderr]    Compiling pulldown-cmark v0.5.3
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking dtoa-short v0.3.2
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling onig_sys v69.5.1
[INFO] [stderr]    Compiling selectors v0.21.0
[INFO] [stderr]    Compiling sass-sys v0.4.21
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.48/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=5a30f1219db941dd -C extra-filename=-5a30f1219db941dd --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-db256853d8ab4a1e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-ade5fbeeb7bccbe4.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-b888af50774a486c.rmeta --cap-lints allow --cap-lints=forbid --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: linking with `cc` failed: exit code: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/beta-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/build/onig_sys-06703c0a17cb86d7/build_script_build-06703c0a17cb86d7.build_script_build.53zuwgvn-cgu.0.rcgu.o" "/opt/rustwide/target/debug/build/onig_sys-06703c0a17cb86d7/build_script_build-06703c0a17cb86d7.build_script_build.53zuwgvn-cgu.1.rcgu.o" "/opt/rustwide/target/debug/build/onig_sys-06703c0a17cb86d7/build_script_build-06703c0a17cb86d7.build_script_build.53zuwgvn-cgu.10.rcgu.o" "/opt/rustwide/target/debug/build/onig_sys-06703c0a17cb86d7/build_script_build-06703c0a17cb86d7.build_script_build.53zuwgvn-cgu.11.rcgu.o" "/opt/rustwide/target/debug/build/onig_sys-06703c0a17cb86d7/build_script_build-06703c0a17cb86d7.build_script_build.53zuwgvn-cgu.12.rcgu.o" "/opt/rustwide/target/debug/build/onig_sys-06703c0a17cb86d7/build_script_build-06703c0a17cb86d7.build_script_build.53zuwgvn-cgu.13.rcgu.o" "/opt/rustwide/target/debug/build/onig_sys-06703c0a17cb86d7/build_script_build-06703c0a17cb86d7.build_script_build.53zuwgvn-cgu.14.rcgu.o" "/opt/rustwide/target/debug/build/onig_sys-06703c0a17cb86d7/build_script_build-06703c0a17cb86d7.build_script_build.53zuwgvn-cgu.15.rcgu.o" "/opt/rustwide/target/debug/build/onig_sys-06703c0a17cb86d7/build_script_build-06703c0a17cb86d7.build_script_build.53zuwgvn-cgu.2.rcgu.o" "/opt/rustwide/target/debug/build/onig_sys-06703c0a17cb86d7/build_script_build-06703c0a17cb86d7.build_script_build.53zuwgvn-cgu.3.rcgu.o" "/opt/rustwide/target/debug/build/onig_sys-06703c0a17cb86d7/build_script_build-06703c0a17cb86d7.build_script_build.53zuwgvn-cgu.4.rcgu.o" "/opt/rustwide/target/debug/build/onig_sys-06703c0a17cb86d7/build_script_build-06703c0a17cb86d7.build_script_build.53zuwgvn-cgu.5.rcgu.o" "/opt/rustwide/target/debug/build/onig_sys-06703c0a17cb86d7/build_script_build-06703c0a17cb86d7.build_script_build.53zuwgvn-cgu.6.rcgu.o" "/opt/rustwide/target/debug/build/onig_sys-06703c0a17cb86d7/build_script_build-06703c0a17cb86d7.build_script_build.53zuwgvn-cgu.7.rcgu.o" "/opt/rustwide/target/debug/build/onig_sys-06703c0a17cb86d7/build_script_build-06703c0a17cb86d7.build_script_build.53zuwgvn-cgu.8.rcgu.o" "/opt/rustwide/target/debug/build/onig_sys-06703c0a17cb86d7/build_script_build-06703c0a17cb86d7.build_script_build.53zuwgvn-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/build/onig_sys-06703c0a17cb86d7/build_script_build-06703c0a17cb86d7" "/opt/rustwide/target/debug/build/onig_sys-06703c0a17cb86d7/build_script_build-06703c0a17cb86d7.rmn59vopuhe6zr2.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libpkg_config-aa496342a7f422fb.rlib" "/opt/rustwide/target/debug/deps/libcc-d5163dd1e69161e8.rlib" "/opt/rustwide/target/debug/deps/libbindgen-42a45ea8a71e39cb.rlib" "/opt/rustwide/target/debug/deps/libwhich-9e154b31a1427606.rlib" "/opt/rustwide/target/debug/deps/libshlex-f74cb568bec45d09.rlib" "/opt/rustwide/target/debug/deps/librustc_hash-5737c06a2d9d1a61.rlib" "/opt/rustwide/target/debug/deps/liblazycell-b9c5af3c39153e73.rlib" "/opt/rustwide/target/debug/deps/libpeeking_take_while-9d1e3c2ea340e57f.rlib" "/opt/rustwide/target/debug/deps/libregex-699f3b2ac2d89b00.rlib" "/opt/rustwide/target/debug/deps/libthread_local-b5a8520d8d18b76f.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-c7cd9ce142c62e3a.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-a8752129727eeede.rlib" "/opt/rustwide/target/debug/deps/libclang_sys-808af3cb73ede619.rlib" "/opt/rustwide/target/debug/deps/liblibloading-5d971aaa17ce5993.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-5ed06e01287ee2cd.rlib" "/opt/rustwide/target/debug/deps/liblibc-b79727582f81e97f.rlib" "/opt/rustwide/target/debug/deps/libglob-adc7f0b4f88aa34d.rlib" "/opt/rustwide/target/debug/deps/libcexpr-903d9efc0ba5f1dd.rlib" "/opt/rustwide/target/debug/deps/libnom-06db0f2d7e8f76df.rlib" "/opt/rustwide/target/debug/deps/libmemchr-1f3222681e59e084.rlib" "/opt/rustwide/target/debug/deps/liblog-51760c8d9f0a0b95.rlib" "/opt/rustwide/target/debug/deps/libquote-ade5fbeeb7bccbe4.rlib" "/opt/rustwide/target/debug/deps/libproc_macro2-db256853d8ab4a1e.rlib" "/opt/rustwide/target/debug/deps/libunicode_xid-b888af50774a486c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libproc_macro-99fff886dc1d5825.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-03dc560a77c5aa3e.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-727e218cbe4629d5.rlib" "/opt/rustwide/target/debug/deps/libbitflags-ef3b499484556621.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-3532beb752f910d7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-3529ece450b7f3c6.rlib" "/opt/rustwide/rustup-home/toolchains/beta-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-23e8f582a6744f80.rlib" "/opt/rustwide/rustup-home/toolchains/beta-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-5e7e0793b29cbf78.rlib" "/opt/rustwide/rustup-home/toolchains/beta-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-253e0736424ceb78.rlib" "/opt/rustwide/rustup-home/toolchains/beta-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-b6fd484888124c85.rlib" "/opt/rustwide/rustup-home/toolchains/beta-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-cca4d20e4b53839c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-0a7401891c2a4f50.rlib" "/opt/rustwide/rustup-home/toolchains/beta-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-efbb25e073df787e.rlib" "/opt/rustwide/rustup-home/toolchains/beta-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-25965457612624bc.rlib" "/opt/rustwide/rustup-home/toolchains/beta-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-09058283ea779342.rlib" "/opt/rustwide/rustup-home/toolchains/beta-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-ab973dacc0513511.rlib" "/opt/rustwide/rustup-home/toolchains/beta-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-b437d6640b1f764b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-8cc0b2380206399c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-727cdf2b6a468113.rlib" "/opt/rustwide/rustup-home/toolchains/beta-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-cf4d442d877ea2f4.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-7e5b6df427ca977c.rlib" "-Wl,-Bdynamic" "-ldl" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stdout]   = note: collect2: fatal error: ld terminated with signal 9 [Killed]
[INFO] [stdout]           compilation terminated.
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a3a4f674dbf5afa2208f3de5951ba5a6d5a3af0f757fbb1b7ab050c628988c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3a4f674dbf5afa2208f3de5951ba5a6d5a3af0f757fbb1b7ab050c628988c2a", kill_on_drop: false }`
[INFO] [stdout] a3a4f674dbf5afa2208f3de5951ba5a6d5a3af0f757fbb1b7ab050c628988c2a