[INFO] cloning repository https://github.com/ebcrowder/cb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ebcrowder/cb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Febcrowder%2Fcb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Febcrowder%2Fcb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 533d32f3cc1e1155d0f4b1bf3d27c2e09dd0b6e4
[INFO] checking ebcrowder/cb/533d32f3cc1e1155d0f4b1bf3d27c2e09dd0b6e4 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Febcrowder%2Fcb" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ebcrowder/cb on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ebcrowder/cb
[INFO] finished tweaking git repo https://github.com/ebcrowder/cb
[INFO] tweaked toml for git repo https://github.com/ebcrowder/cb written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ebcrowder/cb 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded predicates v2.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 451a345b0931abe659fb7c576f5555dc88e696d2230019523ec8e7f7f2b565a1
[INFO] running `Command { std: "docker" "start" "-a" "451a345b0931abe659fb7c576f5555dc88e696d2230019523ec8e7f7f2b565a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "451a345b0931abe659fb7c576f5555dc88e696d2230019523ec8e7f7f2b565a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "451a345b0931abe659fb7c576f5555dc88e696d2230019523ec8e7f7f2b565a1", kill_on_drop: false }`
[INFO] [stdout] 451a345b0931abe659fb7c576f5555dc88e696d2230019523ec8e7f7f2b565a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6f3a8734f97ec0853d70bf735db326a57dc25cb06f28b4feb48419ea8faacc3
[INFO] running `Command { std: "docker" "start" "-a" "c6f3a8734f97ec0853d70bf735db326a57dc25cb06f28b4feb48419ea8faacc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking os_str_bytes v2.4.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking predicates-tree v1.0.3
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[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-a885bee76ab275ba/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   error occured in handler:  ('request: ', ('xcb', 'Xinerama', 'QueryScreens'))
[INFO] [stderr]   Traceback (most recent call last):
[INFO] [stderr]     File "/opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/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-6f17d22bba15001f/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-6f17d22bba15001f/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-6f17d22bba15001f/xcb-0.8.2/rs_client.py", line 114, in writeout
[INFO] [stderr]       with open(path, 'w') as f:
[INFO] [stderr]   OSError: [Errno 30] Read-only file system: '/opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/xcb-0.8.2/src/ffi/xinerama.rs'
[INFO] [stderr]   thread 'main' panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/xcb-0.8.2/build.rs:75:17:
[INFO] [stderr]   processing of /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/xcb-0.8.2/xml/xinerama.xml returned non-zero (1)
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55d15f6d471d - std::backtrace_rs::backtrace::libunwind::trace::h75dd19c0e3849156
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stderr]      1:     0x55d15f6d471d - std::backtrace_rs::backtrace::trace_unsynchronized::h482232c1a6c95b25
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55d15f6d471d - std::sys::backtrace::_print_fmt::he7fcc6d82320fe95
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x55d15f6d471d - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h5c916059b37651bb
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x55d15f6f510b - core::fmt::rt::Argument::fmt::h2f8cebc493dd4dc2
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x55d15f6f510b - core::fmt::write::h1de445c175831db2
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/core/src/fmt/mod.rs:1178:21
[INFO] [stderr]      6:     0x55d15f6d1ad3 - std::io::Write::write_fmt::hbf23c37a6a7702bb
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/std/src/io/mod.rs:1823:15
[INFO] [stderr]      7:     0x55d15f6d5a72 - std::sys::backtrace::BacktraceLock::print::he8728ec7ae4da534
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      8:     0x55d15f6d5a72 - std::panicking::default_hook::{{closure}}::h53f4b5fa246fb840
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/std/src/panicking.rs:266:22
[INFO] [stderr]      9:     0x55d15f6d56de - std::panicking::default_hook::h096a25f2f5fb7a76
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/std/src/panicking.rs:293:9
[INFO] [stderr]     10:     0x55d15f6d628f - std::panicking::rust_panic_with_hook::hc15818e9dc353f8a
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/std/src/panicking.rs:797:13
[INFO] [stderr]     11:     0x55d15f6d6007 - std::panicking::begin_panic_handler::{{closure}}::h8cfce68509669055
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/std/src/panicking.rs:671:13
[INFO] [stderr]     12:     0x55d15f6d4c09 - std::sys::backtrace::__rust_end_short_backtrace::hb6b433e928ce701d
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/std/src/sys/backtrace.rs:170:18
[INFO] [stderr]     13:     0x55d15f6d5c94 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/std/src/panicking.rs:662:5
[INFO] [stderr]     14:     0x55d15f6f42f3 - core::panicking::panic_fmt::h99f40ce32caca95b
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/core/src/panicking.rs:74:14
[INFO] [stderr]     15:     0x55d15f6aea59 - build_script_build::main::{{closure}}::hf17d80f97a240035
[INFO] [stderr]     16:     0x55d15f6ad6a6 - build_script_build::visit_xml::h8b795b3426959bef
[INFO] [stderr]     17:     0x55d15f6adfcc - build_script_build::main::h4830b05589ff1996
[INFO] [stderr]     18:     0x55d15f6aa283 - core::ops::function::FnOnce::call_once::hcb163b0bf0bedfc1
[INFO] [stderr]     19:     0x55d15f6a9a56 - std::sys::backtrace::__rust_begin_short_backtrace::h80c3ca8aae1c2abb
[INFO] [stderr]     20:     0x55d15f6a98d9 - std::rt::lang_start::{{closure}}::h3886179b892d15f3
[INFO] [stderr]     21:     0x55d15f6ce500 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h91cbccdd3fca333a
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     22:     0x55d15f6ce500 - std::panicking::try::do_call::h53263330eea6dbc6
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/std/src/panicking.rs:554:40
[INFO] [stderr]     23:     0x55d15f6ce500 - std::panicking::try::h4a014e712edc4373
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/std/src/panicking.rs:518:19
[INFO] [stderr]     24:     0x55d15f6ce500 - std::panic::catch_unwind::h29f387b2f4ed6d09
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/std/src/panic.rs:345:14
[INFO] [stderr]     25:     0x55d15f6ce500 - std::rt::lang_start_internal::{{closure}}::h7feb3eef8a841d9d
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/std/src/rt.rs:143:48
[INFO] [stderr]     26:     0x55d15f6ce500 - std::panicking::try::do_call::h25cdbc3e681e2555
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/std/src/panicking.rs:554:40
[INFO] [stderr]     27:     0x55d15f6ce500 - std::panicking::try::h1dbce61cee7e4771
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/std/src/panicking.rs:518:19
[INFO] [stderr]     28:     0x55d15f6ce500 - std::panic::catch_unwind::h06ee17f3b50f1b14
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/std/src/panic.rs:345:14
[INFO] [stderr]     29:     0x55d15f6ce500 - std::rt::lang_start_internal::h2c85f8968ba67cab
[INFO] [stderr]                                  at /rustc/1f12b9b0fdbe735968ac002792a720f0ba4faca6/library/std/src/rt.rs:143:20
[INFO] [stderr]     30:     0x55d15f6a98b7 - std::rt::lang_start::h6c499dfde8d5c6d5
[INFO] [stderr]     31:     0x55d15f6aead5 - main
[INFO] [stderr]     32:     0x7f891da8cd90 - <unknown>
[INFO] [stderr]     33:     0x7f891da8ce40 - __libc_start_main
[INFO] [stderr]     34:     0x55d15f6a8635 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c6f3a8734f97ec0853d70bf735db326a57dc25cb06f28b4feb48419ea8faacc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6f3a8734f97ec0853d70bf735db326a57dc25cb06f28b4feb48419ea8faacc3", kill_on_drop: false }`
[INFO] [stdout] c6f3a8734f97ec0853d70bf735db326a57dc25cb06f28b4feb48419ea8faacc3