[INFO] fetching crate inputplug 0.4.0...
[INFO] testing inputplug-0.4.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate inputplug 0.4.0 into /workspace/builds/worker-91/source
[INFO] validating manifest of crates.io crate inputplug 0.4.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-91/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 891f9804fbf6faca87091d229fa9358f072fae29a3486e9f3183972408b41577
[INFO] running `Command { std: "docker" "start" "-a" "891f9804fbf6faca87091d229fa9358f072fae29a3486e9f3183972408b41577", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "891f9804fbf6faca87091d229fa9358f072fae29a3486e9f3183972408b41577", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "891f9804fbf6faca87091d229fa9358f072fae29a3486e9f3183972408b41577", kill_on_drop: false }`
[INFO] [stdout] 891f9804fbf6faca87091d229fa9358f072fae29a3486e9f3183972408b41577
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8922ac9ad266aa0c9796c6e89ebb8734396b8df9b3b140a85afa565061b4d11
[INFO] running `Command { std: "docker" "start" "-a" "d8922ac9ad266aa0c9796c6e89ebb8734396b8df9b3b140a85afa565061b4d11", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling pidfile-rs v0.1.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling nix v0.20.0
[INFO] [stderr]    Compiling gethostname v0.2.1
[INFO] [stderr]    Compiling nix v0.22.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[INFO] [stderr]    Compiling x11rb v0.8.1
[INFO] [stderr]    Compiling thiserror v1.0.26
[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-32fddc7c27ef236b.inputplug.1a401e35-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.1a401e35-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.1a401e35-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.1a401e35-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.1a401e35-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.1a401e35-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.1a401e35-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.1a401e35-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.1a401e35-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.1a401e35-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.1a401e35-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.1a401e35-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.1a401e35-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.1a401e35-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.1a401e35-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.1a401e35-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.498xgezejbnm20dk.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libx11rb-e2ce4af3cceb8e2e.rlib" "/opt/rustwide/target/debug/deps/libgethostname-7e04b6943054e65b.rlib" "/opt/rustwide/target/debug/deps/libnix-9eb2806bd2dc556e.rlib" "/opt/rustwide/target/debug/deps/libanyhow-36d42a2b09968698.rlib" "/opt/rustwide/target/debug/deps/libstructopt-61163db65442193f.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-b33cd6b8ee13db74.rlib" "/opt/rustwide/target/debug/deps/libclap-ce8f02678199fdd3.rlib" "/opt/rustwide/target/debug/deps/libtextwrap-5fec79f426ca26e0.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-6da279cd4f865ec2.rlib" "/opt/rustwide/target/debug/deps/libpidfile_rs-63c731defa2aa91b.rlib" "/opt/rustwide/target/debug/deps/libthiserror-baad70f320a482e4.rlib" "/opt/rustwide/target/debug/deps/liblog-d1d9e9bb2ac58ba1.rlib" "/opt/rustwide/target/debug/deps/libnix-eb9363afcbb97010.rlib" "/opt/rustwide/target/debug/deps/libbitflags-6d05264d59b50f7f.rlib" "/opt/rustwide/target/debug/deps/libmemoffset-1ebc79530dc1dd57.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-90e3626e3c41eec3.rlib" "/opt/rustwide/target/debug/deps/liblibc-f0271d3304ca6c77.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-29e5e596e889a0aa.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-1b145d9fcdc08832.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-5b037ee6b77e2ff0.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-9635a64fca0ebd28.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-a7574eb9bb7a8fc5.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-f5fa1dc334dcaeeb.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-6ee570a898e75ef0.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-afb62f29a0815772.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-a632746535fd9988.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-25acc307bcb1d7b6.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-377721a625f6ace7.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-43c01431c8a4ee6f.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-5f74725679453254.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-2b35d8999819161d.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-a81f2980c3f58cf2.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-57b4679830289815.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-2a6a2797f7a73818.rlib" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-0e3656b1fda5fd7b.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-13b419dfbcf9c1f8.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/a77da2d454e6caa227a85b16410b95f93495e7e0/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/deps/libpidfile_rs-63c731defa2aa91b.rlib(pidfile_rs-63c731defa2aa91b.pidfile_rs.153d4e6f-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-63c731defa2aa91b.rlib(pidfile_rs-63c731defa2aa91b.pidfile_rs.153d4e6f-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-63c731defa2aa91b.rlib(pidfile_rs-63c731defa2aa91b.pidfile_rs.153d4e6f-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] [stderr] error: could not compile `inputplug` due to 2 previous errors; 1 warning emitted
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d8922ac9ad266aa0c9796c6e89ebb8734396b8df9b3b140a85afa565061b4d11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8922ac9ad266aa0c9796c6e89ebb8734396b8df9b3b140a85afa565061b4d11", kill_on_drop: false }`
[INFO] [stdout] d8922ac9ad266aa0c9796c6e89ebb8734396b8df9b3b140a85afa565061b4d11