[INFO] fetching crate inputplug 0.4.0...
[INFO] testing inputplug-0.4.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate inputplug 0.4.0 into /workspace/builds/worker-59/source
[INFO] validating manifest of crates.io crate inputplug 0.4.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate inputplug 0.4.0
[INFO] finished tweaking crates.io crate inputplug 0.4.0
[INFO] tweaked toml for crates.io crate inputplug 0.4.0 written to /workspace/builds/worker-59/source/Cargo.toml
[INFO] crate crates.io crate inputplug 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pidfile-rs v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b57d65eb18de57d627e63a368701f6ed613ab2fbfe9e8490f1e8d09d2358a8c0
[INFO] running `Command { std: "docker" "start" "-a" "b57d65eb18de57d627e63a368701f6ed613ab2fbfe9e8490f1e8d09d2358a8c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b57d65eb18de57d627e63a368701f6ed613ab2fbfe9e8490f1e8d09d2358a8c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b57d65eb18de57d627e63a368701f6ed613ab2fbfe9e8490f1e8d09d2358a8c0", kill_on_drop: false }`
[INFO] [stdout] b57d65eb18de57d627e63a368701f6ed613ab2fbfe9e8490f1e8d09d2358a8c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea272315eb8f74e53f0e71742f32d87e75d4e7440e3309fa87038425cb9112dc
[INFO] running `Command { std: "docker" "start" "-a" "ea272315eb8f74e53f0e71742f32d87e75d4e7440e3309fa87038425cb9112dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling pidfile-rs v0.1.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling gethostname v0.2.1
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling nix v0.22.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling x11rb v0.8.1
[INFO] [stderr]    Compiling structopt v0.3.22
[INFO] [stderr]    Compiling inputplug v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `conn`
[INFO] [stdout]   --> src/main.rs:95:26
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn to_cmdline(&self, conn: &impl RequestConnection) -> Vec<String> {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_conn`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/inputplug-2b265d7ccc3a54ca.inputplug.4b2ab7d7-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-2b265d7ccc3a54ca.inputplug.4b2ab7d7-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-2b265d7ccc3a54ca.inputplug.4b2ab7d7-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-2b265d7ccc3a54ca.inputplug.4b2ab7d7-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-2b265d7ccc3a54ca.inputplug.4b2ab7d7-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-2b265d7ccc3a54ca.inputplug.4b2ab7d7-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-2b265d7ccc3a54ca.inputplug.4b2ab7d7-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-2b265d7ccc3a54ca.inputplug.4b2ab7d7-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-2b265d7ccc3a54ca.inputplug.4b2ab7d7-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-2b265d7ccc3a54ca.inputplug.4b2ab7d7-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-2b265d7ccc3a54ca.inputplug.4b2ab7d7-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-2b265d7ccc3a54ca.inputplug.4b2ab7d7-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-2b265d7ccc3a54ca.inputplug.4b2ab7d7-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-2b265d7ccc3a54ca.inputplug.4b2ab7d7-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-2b265d7ccc3a54ca.inputplug.4b2ab7d7-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-2b265d7ccc3a54ca.inputplug.4b2ab7d7-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-2b265d7ccc3a54ca.4gjwyofwrpqjdkui.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libx11rb-c1ebd4964a751373.rlib" "/opt/rustwide/target/debug/deps/libgethostname-c923a352d98966e7.rlib" "/opt/rustwide/target/debug/deps/libnix-366fea8d902ba143.rlib" "/opt/rustwide/target/debug/deps/libanyhow-29fe7d0a7bd4c960.rlib" "/opt/rustwide/target/debug/deps/libstructopt-37ed79936a20476c.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-86422d76b8bd90ed.rlib" "/opt/rustwide/target/debug/deps/libclap-86dc13c6b471cb83.rlib" "/opt/rustwide/target/debug/deps/libtextwrap-dcd1981df6974b46.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-b35e561241f87659.rlib" "/opt/rustwide/target/debug/deps/libpidfile_rs-1f6ad358a7406b08.rlib" "/opt/rustwide/target/debug/deps/libthiserror-0fba2fa0acee05ea.rlib" "/opt/rustwide/target/debug/deps/liblog-51b42ffc939a9eea.rlib" "/opt/rustwide/target/debug/deps/libnix-35c0132d95a07636.rlib" "/opt/rustwide/target/debug/deps/libbitflags-6063cd2c96572b53.rlib" "/opt/rustwide/target/debug/deps/libmemoffset-4273c4d5090281ff.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-97437e183f3ae6e4.rlib" "/opt/rustwide/target/debug/deps/liblibc-ef1e2aecb11b54c6.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-9a950938f3668a37.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-3b1b529ec96b3df7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-ac333df4e6839cea.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-22a9ff9d2be6d427.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-5decbb94c7d60860.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-29a9663b62a1cd00.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-6f0cee0dbab2d3f8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-f5dc7d1d28c5c249.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-d19bda9ef557e755.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-82a955fd13db2399.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-44f3e7c1b7cc17ef.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-3ee6f750c5f3c2cf.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-ae5e1795dcba83e8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-8d545d8592f2b534.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-c4c222675f83fd37.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-c1e9c53e75e301ed.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-beea7d9617fe25c5.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-8ef7dd43fc671f88.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-80a2b295510dd038.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2021-09-08-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/inputplug-2b265d7ccc3a54ca" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/libpidfile_rs-1f6ad358a7406b08.rlib(pidfile_rs-1f6ad358a7406b08.pidfile_rs.6b1892d1-cgu.0.rcgu.o): in function `pidfile_rs::Pidfile::new':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pidfile-rs-0.1.0/src/lib.rs:124: undefined reference to `pidfile_open'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libpidfile_rs-1f6ad358a7406b08.rlib(pidfile_rs-1f6ad358a7406b08.pidfile_rs.6b1892d1-cgu.0.rcgu.o): in function `pidfile_rs::Pidfile::write':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pidfile-rs-0.1.0/src/lib.rs:156: undefined reference to `pidfile_write'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libpidfile_rs-1f6ad358a7406b08.rlib(pidfile_rs-1f6ad358a7406b08.pidfile_rs.6b1892d1-cgu.0.rcgu.o): in function `<pidfile_rs::Pidfile as core::ops::drop::Drop>::drop':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pidfile-rs-0.1.0/src/lib.rs:183: undefined reference to `pidfile_remove'
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout]   = help: some `extern` functions couldn't be found; some native libraries may need to be installed or have their path specified
[INFO] [stdout]   = note: use the `-l` flag to specify native libraries to link
[INFO] [stdout]   = note: use the `cargo:rustc-link-lib` directive to specify the native libraries to link with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#cargorustc-link-libkindname)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `inputplug` due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "ea272315eb8f74e53f0e71742f32d87e75d4e7440e3309fa87038425cb9112dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea272315eb8f74e53f0e71742f32d87e75d4e7440e3309fa87038425cb9112dc", kill_on_drop: false }`
[INFO] [stdout] ea272315eb8f74e53f0e71742f32d87e75d4e7440e3309fa87038425cb9112dc