[INFO] cloning repository https://github.com/mjkillough/lanta
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mjkillough/lanta" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmjkillough%2Flanta", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmjkillough%2Flanta'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c31f087514502f243eb15ac0f1a57072aa8779c
[INFO] checking mjkillough/lanta/4c31f087514502f243eb15ac0f1a57072aa8779c against master#91775dbec9771aa0c1b9ebe268eb5bd271e79a7a for pr-139087-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmjkillough%2Flanta" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mjkillough/lanta
[INFO] finished tweaking git repo https://github.com/mjkillough/lanta
[INFO] tweaked toml for git repo https://github.com/mjkillough/lanta written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mjkillough/lanta on toolchain 91775dbec9771aa0c1b9ebe268eb5bd271e79a7a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+91775dbec9771aa0c1b9ebe268eb5bd271e79a7a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mjkillough/lanta 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" "+91775dbec9771aa0c1b9ebe268eb5bd271e79a7a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pkg-config v0.3.14
[INFO] [stderr]   Downloaded cfg-if v0.1.7
[INFO] [stderr]   Downloaded redox_syscall v0.1.51
[INFO] [stderr]   Downloaded xdg v2.2.0
[INFO] [stderr]   Downloaded xcb-util v0.2.0
[INFO] [stderr]   Downloaded failure_derive v0.1.5
[INFO] [stderr]   Downloaded log v0.4.6
[INFO] [stderr]   Downloaded log-panics v2.0.0
[INFO] [stderr]   Downloaded autocfg v0.1.2
[INFO] [stderr]   Downloaded time v0.1.42
[INFO] [stderr]   Downloaded synstructure v0.10.1
[INFO] [stderr]   Downloaded proc-macro2 v0.4.27
[INFO] [stderr]   Downloaded cc v1.0.32
[INFO] [stderr]   Downloaded x11 v2.18.1
[INFO] [stderr]   Downloaded backtrace v0.3.14
[INFO] [stderr]   Downloaded quote v0.6.11
[INFO] [stderr]   Downloaded failure v0.1.5
[INFO] [stderr]   Downloaded syn v0.15.29
[INFO] [stderr]   Downloaded rustc-demangle v0.1.13
[INFO] [stderr]   Downloaded fern v0.5.8
[INFO] [stderr]   Downloaded libc v0.2.51
[INFO] [stderr]   Downloaded backtrace-sys v0.1.28
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+91775dbec9771aa0c1b9ebe268eb5bd271e79a7a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc6dc169d8263be37f6dd90ea2269f296661d21d09b989850dc11df36b093771
[INFO] running `Command { std: "docker" "start" "-a" "fc6dc169d8263be37f6dd90ea2269f296661d21d09b989850dc11df36b093771", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc6dc169d8263be37f6dd90ea2269f296661d21d09b989850dc11df36b093771", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc6dc169d8263be37f6dd90ea2269f296661d21d09b989850dc11df36b093771", kill_on_drop: false }`
[INFO] [stdout] fc6dc169d8263be37f6dd90ea2269f296661d21d09b989850dc11df36b093771
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+91775dbec9771aa0c1b9ebe268eb5bd271e79a7a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 412ba06a3bbe31e0c243ea8f6a75c311b0e4a0687026db56857a6fbafd978994
[INFO] running `Command { std: "docker" "start" "-a" "412ba06a3bbe31e0c243ea8f6a75c311b0e4a0687026db56857a6fbafd978994", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]    Compiling cc v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]     Checking rustc-demangle v0.1.13
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking fern v0.5.8
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling x11 v2.18.1
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling xcb v0.8.2
[INFO] [stderr] error: failed to run custom build command for `xcb v0.8.2`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/xcb-d70a82e436eb9925/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   error occured in handler:  ('event:   ', ('xcb', 'ScreenSaver', 'Notify'))
[INFO] [stderr]   Traceback (most recent call last):
[INFO] [stderr]     File "/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/xcb-0.8.2/rs_client.py", line 2448, in <module>
[INFO] [stderr]       module.generate()
[INFO] [stderr]     File "/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/xcb-0.8.2/xcbgen/state.py", line 108, in generate
[INFO] [stderr]       self.close()
[INFO] [stderr]     File "/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/xcb-0.8.2/rs_client.py", line 296, in rs_close
[INFO] [stderr]       _f.writeout(os.path.join(module.rs_srcdir, "ffi", "%s.rs" % _module_name(_ns.ext_name)))
[INFO] [stderr]     File "/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/xcb-0.8.2/rs_client.py", line 114, in writeout
[INFO] [stderr]       with open(path, 'w') as f:
[INFO] [stderr]            ^^^^^^^^^^^^^^^
[INFO] [stderr]   OSError: [Errno 30] Read-only file system: '/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/xcb-0.8.2/src/ffi/screensaver.rs'
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (391) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/xcb-0.8.2/build.rs:75:17:
[INFO] [stderr]   processing of /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/xcb-0.8.2/xml/screensaver.xml returned non-zero (1)
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x609f566dfd9a - std[bae7bb90fd99e79c]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x609f566dfd9a - std[bae7bb90fd99e79c]::backtrace_rs::backtrace::trace_unsynchronized::<std[bae7bb90fd99e79c]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x609f566dfd9a - std[bae7bb90fd99e79c]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x609f566dfd9a - <<std[bae7bb90fd99e79c]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[976f6d1a67e2ba9a]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x609f566f0e8a - <core[976f6d1a67e2ba9a]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x609f566f0e8a - core[976f6d1a67e2ba9a]::fmt::write
[INFO] [stderr]      6:     0x609f566e40b2 - std[bae7bb90fd99e79c]::io::default_write_fmt::<std[bae7bb90fd99e79c]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x609f566e40b2 - <std[bae7bb90fd99e79c]::sys::stdio::unix::Stderr as std[bae7bb90fd99e79c]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]      8:     0x609f566c474f - <std[bae7bb90fd99e79c]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x609f566c474f - std[bae7bb90fd99e79c]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x609f566dbb11 - std[bae7bb90fd99e79c]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x609f566dbccb - std[bae7bb90fd99e79c]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x609f566c4808 - std[bae7bb90fd99e79c]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x609f566bc3c9 - std[bae7bb90fd99e79c]::sys::backtrace::__rust_end_short_backtrace::<std[bae7bb90fd99e79c]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x609f566c506d - __rustc[60c32f7835a1e9de]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x609f566f169c - core[976f6d1a67e2ba9a]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x609f566aa2cb - build_script_build[afe881609689620a]::main::{closure#0}
[INFO] [stderr]     17:     0x609f566a7fed - build_script_build[afe881609689620a]::visit_xml::<build_script_build[afe881609689620a]::main::{closure#0}>
[INFO] [stderr]     18:     0x609f566aaa9a - build_script_build[afe881609689620a]::main
[INFO] [stderr]     19:     0x609f566ad823 - <fn() as core[976f6d1a67e2ba9a]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     20:     0x609f566a98c6 - std[bae7bb90fd99e79c]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     21:     0x609f566a9db9 - std[bae7bb90fd99e79c]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     22:     0x609f566dad54 - <&dyn core[976f6d1a67e2ba9a]::ops::function::Fn<(), Output = i32> + core[976f6d1a67e2ba9a]::marker::Sync + core[976f6d1a67e2ba9a]::panic::unwind_safe::RefUnwindSafe as core[976f6d1a67e2ba9a]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     23:     0x609f566dad54 - std[bae7bb90fd99e79c]::panicking::catch_unwind::do_call::<&dyn core[976f6d1a67e2ba9a]::ops::function::Fn<(), Output = i32> + core[976f6d1a67e2ba9a]::marker::Sync + core[976f6d1a67e2ba9a]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/panicking.rs:581:40
[INFO] [stderr]     24:     0x609f566dad54 - std[bae7bb90fd99e79c]::panicking::catch_unwind::<i32, &dyn core[976f6d1a67e2ba9a]::ops::function::Fn<(), Output = i32> + core[976f6d1a67e2ba9a]::marker::Sync + core[976f6d1a67e2ba9a]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/panicking.rs:544:19
[INFO] [stderr]     25:     0x609f566dad54 - std[bae7bb90fd99e79c]::panic::catch_unwind::<&dyn core[976f6d1a67e2ba9a]::ops::function::Fn<(), Output = i32> + core[976f6d1a67e2ba9a]::marker::Sync + core[976f6d1a67e2ba9a]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/panic.rs:359:14
[INFO] [stderr]     26:     0x609f566dad54 - std[bae7bb90fd99e79c]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/rt.rs:175:24
[INFO] [stderr]     27:     0x609f566dad54 - std[bae7bb90fd99e79c]::panicking::catch_unwind::do_call::<std[bae7bb90fd99e79c]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/panicking.rs:581:40
[INFO] [stderr]     28:     0x609f566dad54 - std[bae7bb90fd99e79c]::panicking::catch_unwind::<isize, std[bae7bb90fd99e79c]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/panicking.rs:544:19
[INFO] [stderr]     29:     0x609f566dad54 - std[bae7bb90fd99e79c]::panic::catch_unwind::<std[bae7bb90fd99e79c]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/panic.rs:359:14
[INFO] [stderr]     30:     0x609f566dad54 - std[bae7bb90fd99e79c]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/91775dbec9771aa0c1b9ebe268eb5bd271e79a7a/library/std/src/rt.rs:171:5
[INFO] [stderr]     31:     0x609f566a9841 - std[bae7bb90fd99e79c]::rt::lang_start::<()>
[INFO] [stderr]     32:     0x609f566adba5 - main
[INFO] [stderr]     33:     0x7788d1e761ca - <unknown>
[INFO] [stderr]     34:     0x7788d1e7628b - __libc_start_main
[INFO] [stderr]     35:     0x609f566a7a25 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "412ba06a3bbe31e0c243ea8f6a75c311b0e4a0687026db56857a6fbafd978994", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "412ba06a3bbe31e0c243ea8f6a75c311b0e4a0687026db56857a6fbafd978994", kill_on_drop: false }`
[INFO] [stdout] 412ba06a3bbe31e0c243ea8f6a75c311b0e4a0687026db56857a6fbafd978994