[INFO] fetching crate carbide 0.70.1...
[INFO] checking carbide-0.70.1 against try#31561a63598a0f21fc74c024747ef1310fdd2eb2 for pr-133536
[INFO] extracting crate carbide 0.70.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate carbide 0.70.1 on toolchain 31561a63598a0f21fc74c024747ef1310fdd2eb2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate carbide 0.70.1
[INFO] finished tweaking crates.io crate carbide 0.70.1
[INFO] tweaked toml for crates.io crate carbide 0.70.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 320 packages to latest compatible versions
[INFO] [stderr]       Adding nix v0.20.0 (available: v0.20.2)
[INFO] [stderr]       Adding wasm-bindgen-futures v0.4.45 (available: v0.4.46)
[INFO] [stderr]       Adding web-sys v0.3.48 (available: v0.3.73)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 454886c7f59d5ec5c98427e80ad48bd8339c7fea766c499932e6fa48d586d716
[INFO] running `Command { std: "docker" "start" "-a" "454886c7f59d5ec5c98427e80ad48bd8339c7fea766c499932e6fa48d586d716", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "454886c7f59d5ec5c98427e80ad48bd8339c7fea766c499932e6fa48d586d716", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "454886c7f59d5ec5c98427e80ad48bd8339c7fea766c499932e6fa48d586d716", kill_on_drop: false }`
[INFO] [stdout] 454886c7f59d5ec5c98427e80ad48bd8339c7fea766c499932e6fa48d586d716
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+31561a63598a0f21fc74c024747ef1310fdd2eb2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 947d58ba41f80f5e5a716d0ac886367b5874c65e09452af886942fea5a483284
[INFO] running `Command { std: "docker" "start" "-a" "947d58ba41f80f5e5a716d0ac886367b5874c65e09452af886942fea5a483284", kill_on_drop: false }`
[INFO] [stderr]    Compiling xml-rs v0.8.23
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking libloading v0.8.6
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling wayland-sys v0.28.6
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking xdg v2.5.2
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]    Compiling serde v1.0.215
[INFO] [stderr]     Checking raw-window-handle v0.4.3
[INFO] [stderr]    Compiling quick-xml v0.22.0
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking dlib v0.5.2
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking euclid v0.22.11
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking wayland-sys v0.23.6
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking raw-window-handle v0.3.4
[INFO] [stderr]    Compiling x11 v2.21.0
[INFO] [stderr]     Checking parking_lot_core v0.8.6
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking gfx-hal v0.6.0
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]     Checking ttf-parser v0.15.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling cc v1.2.2
[INFO] [stderr]    Compiling anyhow v1.0.93
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]    Compiling wayland-scanner v0.28.6
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking ash v0.31.0
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking spirv_headers v1.5.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]    Compiling xcb v0.10.1
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking lyon_geom v0.17.7
[INFO] [stderr]     Checking inplace_it v0.3.6
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling cmake v0.1.52
[INFO] [stderr]     Checking lyon_path v0.17.7
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling wayland-client v0.28.6
[INFO] [stderr]    Compiling wayland-protocols v0.28.6
[INFO] [stderr]     Checking sid v0.6.1
[INFO] [stderr]    Compiling shaderc-sys v0.6.3
[INFO] [stderr]     Checking float_next_after v0.1.5
[INFO] [stderr]     Checking wgpu-types v0.6.1
[INFO] [stderr]     Checking owned_ttf_parser v0.15.2
[INFO] [stderr]     Checking rusttype v0.9.3
[INFO] [stderr]    Compiling wayland-client v0.23.6
[INFO] [stderr]    Compiling wayland-protocols v0.23.6
[INFO] [stderr] warning: shaderc-sys@0.6.3: Checking for system installed libraries.  Use --features = build-from-source to disable this behavior
[INFO] [stderr] warning: shaderc-sys@0.6.3: System installed library not found.  Falling back to build from source
[INFO] [stderr] error: failed to run custom build command for `shaderc-sys v0.6.3`
[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/shaderc-sys-f2b4e95148fc5822/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:warning=Checking for system installed libraries.  Use --features = build-from-source to disable this behavior
[INFO] [stderr]   cargo:warning=System installed library not found.  Falling back to build from source
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/shaderc-sys-0.6.3/build/cmd_finder.rs:50:13:
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   couldn't find required command: "python"
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5c847b9ed42a - std::backtrace_rs::backtrace::libunwind::trace::h49438d59a450c8cd
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stderr]      1:     0x5c847b9ed42a - std::backtrace_rs::backtrace::trace_unsynchronized::h00f8204a39c7607d
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5c847b9ed42a - std::sys::backtrace::_print_fmt::hfb4570bcf6575231
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5c847b9ed42a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::haa24b3ebc15b8405
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5c847ba10e13 - core::fmt::rt::Argument::fmt::h640632ca911b1954
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/core/src/fmt/rt.rs:177:76
[INFO] [stderr]      5:     0x5c847ba10e13 - core::fmt::write::hd87dd4a80fd6ed54
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/core/src/fmt/mod.rs:1189:21
[INFO] [stderr]      6:     0x5c847b9e9ae3 - std::io::Write::write_fmt::h63c69be3cb79728d
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/std/src/io/mod.rs:1887:15
[INFO] [stderr]      7:     0x5c847b9ed272 - std::sys::backtrace::BacktraceLock::print::h0cabd5ee17b200b1
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      8:     0x5c847b9ee46c - std::panicking::default_hook::{{closure}}::hfecf31e00fd6a324
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/std/src/panicking.rs:268:22
[INFO] [stderr]      9:     0x5c847b9ee2b2 - std::panicking::default_hook::h4b1c6fd76f5e43f2
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/std/src/panicking.rs:295:9
[INFO] [stderr]     10:     0x5c847b9eea67 - std::panicking::rust_panic_with_hook::h43e69ada3ffc0134
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/std/src/panicking.rs:801:13
[INFO] [stderr]     11:     0x5c847b9ee8fa - std::panicking::begin_panic_handler::{{closure}}::h541e54997b7f9317
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/std/src/panicking.rs:674:13
[INFO] [stderr]     12:     0x5c847b9ed909 - std::sys::backtrace::__rust_end_short_backtrace::h77e9f2cf7d6f5724
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/std/src/sys/backtrace.rs:170:18
[INFO] [stderr]     13:     0x5c847b9ee58c - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/std/src/panicking.rs:665:5
[INFO] [stderr]     14:     0x5c847ba0fbc0 - core::panicking::panic_fmt::h8656b4a1ebe7eef6
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/core/src/panicking.rs:76:14
[INFO] [stderr]     15:     0x5c847b94e983 - build_script_build::cmd_finder::CommandFinder::must_have::{{closure}}::h963434460afffeba
[INFO] [stderr]     16:     0x5c847b94be33 - core::option::Option<T>::unwrap_or_else::h3be2f94b6913d3f1
[INFO] [stderr]     17:     0x5c847b94e8ec - build_script_build::cmd_finder::CommandFinder::must_have::h83e46668e0fb627b
[INFO] [stderr]     18:     0x5c847b952678 - build_script_build::main::hd19f0cc32da6d629
[INFO] [stderr]     19:     0x5c847b94b2c3 - core::ops::function::FnOnce::call_once::h622f4c9a4882ada2
[INFO] [stderr]     20:     0x5c847b94a9c6 - std::sys::backtrace::__rust_begin_short_backtrace::hb6f5ffb070c491ea
[INFO] [stderr]     21:     0x5c847b94a8e9 - std::rt::lang_start::{{closure}}::h3d72cf1db160da45
[INFO] [stderr]     22:     0x5c847b9e5d37 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h5de4a2bf18b34b48
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     23:     0x5c847b9e5d37 - std::panicking::try::do_call::h18e58ebf513e1dfb
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/std/src/panicking.rs:557:40
[INFO] [stderr]     24:     0x5c847b9e5d37 - std::panicking::try::hd66d4cce67b2d3a6
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/std/src/panicking.rs:520:19
[INFO] [stderr]     25:     0x5c847b9e5d37 - std::panic::catch_unwind::h7d20459bfb46fa18
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/std/src/panic.rs:358:14
[INFO] [stderr]     26:     0x5c847b9e5d37 - std::rt::lang_start_internal::{{closure}}::h08530640535ea25a
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/std/src/rt.rs:174:48
[INFO] [stderr]     27:     0x5c847b9e5d37 - std::panicking::try::do_call::hef1d5032756af4de
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/std/src/panicking.rs:557:40
[INFO] [stderr]     28:     0x5c847b9e5d37 - std::panicking::try::h72abeda96f937582
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/std/src/panicking.rs:520:19
[INFO] [stderr]     29:     0x5c847b9e5d37 - std::panic::catch_unwind::hff9195ddaed64075
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/std/src/panic.rs:358:14
[INFO] [stderr]     30:     0x5c847b9e5d37 - std::rt::lang_start_internal::h506b703bddcb88cd
[INFO] [stderr]                                  at /rustc/31561a63598a0f21fc74c024747ef1310fdd2eb2/library/std/src/rt.rs:174:20
[INFO] [stderr]     31:     0x5c847b94a8c7 - std::rt::lang_start::h027c7534467e457a
[INFO] [stderr]     32:     0x5c847b953075 - main
[INFO] [stderr]     33:     0x6ffd65565d90 - <unknown>
[INFO] [stderr]     34:     0x6ffd65565e40 - __libc_start_main
[INFO] [stderr]     35:     0x5c847b949e35 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "947d58ba41f80f5e5a716d0ac886367b5874c65e09452af886942fea5a483284", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "947d58ba41f80f5e5a716d0ac886367b5874c65e09452af886942fea5a483284", kill_on_drop: false }`
[INFO] [stdout] 947d58ba41f80f5e5a716d0ac886367b5874c65e09452af886942fea5a483284
