[INFO] fetching crate inputplug 0.4.0...
[INFO] testing inputplug-0.4.0 against master#0e21a27075a8c508f00d1a4430497f17ce93d5c9 for pr-98839
[INFO] extracting crate inputplug 0.4.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate inputplug 0.4.0 on toolchain 0e21a27075a8c508f00d1a4430497f17ce93d5c9
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0e21a27075a8c508f00d1a4430497f17ce93d5c9" "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-6/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" "+0e21a27075a8c508f00d1a4430497f17ce93d5c9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gethostname v0.2.1
[INFO] [stderr]   Downloaded x11rb v0.8.1
[INFO] [stderr]   Downloaded pidfile-rs v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+0e21a27075a8c508f00d1a4430497f17ce93d5c9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c673051d2da46ecd63cc1430435b90f23d9155a20de5ff9ea1be5527cde333ba
[INFO] running `Command { std: "docker" "start" "-a" "c673051d2da46ecd63cc1430435b90f23d9155a20de5ff9ea1be5527cde333ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c673051d2da46ecd63cc1430435b90f23d9155a20de5ff9ea1be5527cde333ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c673051d2da46ecd63cc1430435b90f23d9155a20de5ff9ea1be5527cde333ba", kill_on_drop: false }`
[INFO] [stdout] c673051d2da46ecd63cc1430435b90f23d9155a20de5ff9ea1be5527cde333ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+0e21a27075a8c508f00d1a4430497f17ce93d5c9" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c1d5007405480b5ccf2f129df2147e8f41a74e70e620684bbdbc92c99a8965e
[INFO] running `Command { std: "docker" "start" "-a" "4c1d5007405480b5ccf2f129df2147e8f41a74e70e620684bbdbc92c99a8965e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling syn v1.0.73
[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 log v0.4.14
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[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 heck v0.3.3
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling pidfile-rs v0.1.0
[INFO] [stderr]    Compiling memoffset v0.6.4
[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 x11rb v0.8.1
[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 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" "/tmp/rustczyTgNx/symbols.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.be0a970a-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.be0a970a-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.be0a970a-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.be0a970a-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.be0a970a-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.be0a970a-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.be0a970a-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.be0a970a-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.be0a970a-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.be0a970a-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.be0a970a-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.be0a970a-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.be0a970a-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.be0a970a-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.be0a970a-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.inputplug.be0a970a-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/inputplug-32fddc7c27ef236b.1i23a7kne5su21ts.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/0e21a27075a8c508f00d1a4430497f17ce93d5c9/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/0e21a27075a8c508f00d1a4430497f17ce93d5c9/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-1aab30bac2090a15.rlib" "/opt/rustwide/rustup-home/toolchains/0e21a27075a8c508f00d1a4430497f17ce93d5c9/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-9cdaf64f7570f7ff.rlib" "/opt/rustwide/rustup-home/toolchains/0e21a27075a8c508f00d1a4430497f17ce93d5c9/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-7d64cc870c011631.rlib" "/opt/rustwide/rustup-home/toolchains/0e21a27075a8c508f00d1a4430497f17ce93d5c9/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-a0a88b78deed3a16.rlib" "/opt/rustwide/rustup-home/toolchains/0e21a27075a8c508f00d1a4430497f17ce93d5c9/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-315eac6a3174b13c.rlib" "/opt/rustwide/rustup-home/toolchains/0e21a27075a8c508f00d1a4430497f17ce93d5c9/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-778610d63efc39ce.rlib" "/opt/rustwide/rustup-home/toolchains/0e21a27075a8c508f00d1a4430497f17ce93d5c9/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-11737b9eef3e285d.rlib" "/opt/rustwide/rustup-home/toolchains/0e21a27075a8c508f00d1a4430497f17ce93d5c9/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-8165420a20fe4548.rlib" "/opt/rustwide/rustup-home/toolchains/0e21a27075a8c508f00d1a4430497f17ce93d5c9/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-db4c499f2074199d.rlib" "/opt/rustwide/rustup-home/toolchains/0e21a27075a8c508f00d1a4430497f17ce93d5c9/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-1a230f9a19aa3698.rlib" "/opt/rustwide/rustup-home/toolchains/0e21a27075a8c508f00d1a4430497f17ce93d5c9/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-605ec4e87a2c9d10.rlib" "/opt/rustwide/rustup-home/toolchains/0e21a27075a8c508f00d1a4430497f17ce93d5c9/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-5f171797b6654b84.rlib" "/opt/rustwide/rustup-home/toolchains/0e21a27075a8c508f00d1a4430497f17ce93d5c9/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-990f92fdff457c3a.rlib" "/opt/rustwide/rustup-home/toolchains/0e21a27075a8c508f00d1a4430497f17ce93d5c9/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-66ccc5a2fa17d637.rlib" "/opt/rustwide/rustup-home/toolchains/0e21a27075a8c508f00d1a4430497f17ce93d5c9/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-9dba3f083c9eb142.rlib" "/opt/rustwide/rustup-home/toolchains/0e21a27075a8c508f00d1a4430497f17ce93d5c9/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-dfc71beee59013ce.rlib" "/opt/rustwide/rustup-home/toolchains/0e21a27075a8c508f00d1a4430497f17ce93d5c9/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-522518611024dce5.rlib" "/opt/rustwide/rustup-home/toolchains/0e21a27075a8c508f00d1a4430497f17ce93d5c9/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-05898138a596088a.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/0e21a27075a8c508f00d1a4430497f17ce93d5c9/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-6f7f4877ee9c613e.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/0e21a27075a8c508f00d1a4430497f17ce93d5c9/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.555edad7-cgu.2.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.555edad7-cgu.2.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.555edad7-cgu.2.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" "4c1d5007405480b5ccf2f129df2147e8f41a74e70e620684bbdbc92c99a8965e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c1d5007405480b5ccf2f129df2147e8f41a74e70e620684bbdbc92c99a8965e", kill_on_drop: false }`
[INFO] [stdout] 4c1d5007405480b5ccf2f129df2147e8f41a74e70e620684bbdbc92c99a8965e