[INFO] fetching crate megafb 0.0.1... [INFO] testing megafb-0.0.1 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8 [INFO] extracting crate megafb 0.0.1 into /workspace/builds/worker-0-tc2/source [INFO] started tweaking crates.io crate megafb 0.0.1 [INFO] finished tweaking crates.io crate megafb 0.0.1 [INFO] tweaked toml for crates.io crate megafb 0.0.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate megafb 0.0.1 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate megafb 0.0.1 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ef645a86a2e496ba2b05b89c46881588b63ec532c8cf2bbc92e6fd6777d04996 [INFO] running `Command { std: "docker" "start" "-a" "ef645a86a2e496ba2b05b89c46881588b63ec532c8cf2bbc92e6fd6777d04996", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ef645a86a2e496ba2b05b89c46881588b63ec532c8cf2bbc92e6fd6777d04996", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef645a86a2e496ba2b05b89c46881588b63ec532c8cf2bbc92e6fd6777d04996", kill_on_drop: false }` [INFO] [stdout] ef645a86a2e496ba2b05b89c46881588b63ec532c8cf2bbc92e6fd6777d04996 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 35c8a0113720d43b1fff3ea0ee58ea2d1b769c01ae31992a8ec7783cb1422ede [INFO] running `Command { std: "docker" "start" "-a" "35c8a0113720d43b1fff3ea0ee58ea2d1b769c01ae31992a8ec7783cb1422ede", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.60 [INFO] [stderr] Compiling autocfg v0.1.5 [INFO] [stderr] Compiling cc v1.0.37 [INFO] [stderr] Compiling cfg-if v0.1.9 [INFO] [stderr] Compiling rand_core v0.4.0 [INFO] [stderr] Compiling bitflags v1.1.0 [INFO] [stderr] Compiling xml-rs v0.8.0 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Compiling log v0.4.7 [INFO] [stderr] Compiling nix v0.14.1 [INFO] [stderr] Compiling syn v0.15.40 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Compiling lazy_static v1.3.0 [INFO] [stderr] Compiling lazycell v1.2.1 [INFO] [stderr] Compiling arrayvec v0.4.11 [INFO] [stderr] Compiling nodrop v0.1.13 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Compiling same-file v1.0.5 [INFO] [stderr] Compiling downcast-rs v1.0.4 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling pkg-config v0.3.14 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling walkdir v2.2.9 [INFO] [stderr] Compiling stb_truetype v0.2.6 [INFO] [stderr] Compiling rustc-demangle v0.1.15 [INFO] [stderr] Compiling scopeguard v1.0.0 [INFO] [stderr] Compiling smallvec v0.6.10 [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling memmap v0.7.0 [INFO] [stderr] Compiling lock_api v0.2.0 [INFO] [stderr] Compiling fxhash v0.2.1 [INFO] [stderr] Compiling cmake v0.1.40 [INFO] [stderr] Compiling parking_lot_core v0.5.0 [INFO] [stderr] Compiling x11-dl v2.18.3 [INFO] [stderr] Compiling mio v0.6.19 [INFO] [stderr] Compiling parking_lot v0.8.0 [INFO] [stderr] Compiling wayland-scanner v0.23.5 [INFO] [stderr] Compiling percent-encoding v1.0.1 [INFO] [stderr] Compiling ordered-float v1.0.2 [INFO] [stderr] Compiling approx v0.3.2 [INFO] [stderr] Compiling mio-extras v2.0.5 [INFO] [stderr] Compiling line_drawing v0.7.0 [INFO] [stderr] Compiling rusttype v0.7.7 [INFO] [stderr] Compiling libloading v0.5.2 [INFO] [stderr] Compiling backtrace-sys v0.1.31 [INFO] [stderr] Compiling shaderc-sys v0.6.0 [INFO] [stderr] Compiling dlib v0.4.1 [INFO] [stderr] warning: shaderc-sys@0.6.0: Checking for system installed libraries. Use --features = build-from-source to disable this behavior [INFO] [stderr] warning: shaderc-sys@0.6.0: Pre-built library not found. Falling back to from-source build [INFO] [stderr] error: failed to run custom build command for `shaderc-sys v0.6.0` [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-caabb215b0847e62/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=Pre-built library not found. Falling back to from-source build [INFO] [stderr] [INFO] [stderr] --- stderr [INFO] [stderr] [INFO] [stderr] thread 'main' (1082) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/shaderc-sys-0.6.0/build/cmd_finder.rs:45:13: [INFO] [stderr] [INFO] [stderr] [INFO] [stderr] couldn't find required command: "python" [INFO] [stderr] [INFO] [stderr] [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x6220f2825c22 - std::backtrace_rs::backtrace::libunwind::trace::h9ea1e07ac77a25d7 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stderr] 1: 0x6220f2825c22 - std::backtrace_rs::backtrace::trace_unsynchronized::h72b75eb83b53d15a [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stderr] 2: 0x6220f2825c22 - std::sys::backtrace::_print_fmt::h255777b7ec902439 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:66:9 [INFO] [stderr] 3: 0x6220f2825c22 - ::fmt::h8a1ac49fcd7ee8ce [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:39:26 [INFO] [stderr] 4: 0x6220f2835c6f - core::fmt::rt::Argument::fmt::h635cbf3c6754cc90 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/fmt/rt.rs:173:76 [INFO] [stderr] 5: 0x6220f2835c6f - core::fmt::write::hbdcc0ec4f1bab1db [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/fmt/mod.rs:1469:25 [INFO] [stderr] 6: 0x6220f27f6ea3 - std::io::default_write_fmt::hb29d13affe7e9cd0 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/io/mod.rs:639:11 [INFO] [stderr] 7: 0x6220f27f6ea3 - std::io::Write::write_fmt::hec441b8c6eca32b9 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/io/mod.rs:1954:13 [INFO] [stderr] 8: 0x6220f2801392 - std::sys::backtrace::BacktraceLock::print::h052febbd86f7bf07 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:42:9 [INFO] [stderr] 9: 0x6220f2803cac - std::panicking::default_hook::{{closure}}::h66aeee20dd470abb [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:301:27 [INFO] [stderr] 10: 0x6220f2803b06 - std::panicking::default_hook::h9d66b9642014ce48 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:328:9 [INFO] [stderr] 11: 0x6220f2804285 - std::panicking::panic_with_hook::h6d5921a1a1fa5a8e [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:834:13 [INFO] [stderr] 12: 0x6220f280411a - std::panicking::panic_handler::{{closure}}::hafeef6f707d43542 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:707:13 [INFO] [stderr] 13: 0x6220f28014c9 - std::sys::backtrace::__rust_end_short_backtrace::h08cbc3319a3d0120 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/sys/backtrace.rs:174:18 [INFO] [stderr] 14: 0x6220f27eb17d - __rustc[ce5c411ff86ab1b2]::rust_begin_unwind [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:698:5 [INFO] [stderr] 15: 0x6220f28396e0 - core::panicking::panic_fmt::h774fb860369a0f7b [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/panicking.rs:80:14 [INFO] [stderr] 16: 0x6220f27aaa1b - build_script_build::cmd_finder::CommandFinder::must_have::{{closure}}::h46700f6894a78ee0 [INFO] [stderr] 17: 0x6220f27ae969 - core::option::Option::unwrap_or_else::hf32a01018de3f94e [INFO] [stderr] 18: 0x6220f27aa99c - build_script_build::cmd_finder::CommandFinder::must_have::h033da03ac56f4026 [INFO] [stderr] 19: 0x6220f27ace49 - build_script_build::main::h3b12c65ae052ba60 [INFO] [stderr] 20: 0x6220f27adc53 - core::ops::function::FnOnce::call_once::h17cdf5d0114c0402 [INFO] [stderr] 21: 0x6220f27ad966 - std::sys::backtrace::__rust_begin_short_backtrace::hc073227fdbe93c4f [INFO] [stderr] 22: 0x6220f27ad8e9 - std::rt::lang_start::{{closure}}::heeaa99a0aaebd79a [INFO] [stderr] 23: 0x6220f27f8610 - core::ops::function::impls:: for &F>::call_once::h9095abc9db71b07e [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/core/src/ops/function.rs:287:21 [INFO] [stderr] 24: 0x6220f27f8610 - std::panicking::catch_unwind::do_call::h6cf5dc461761418c [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:590:40 [INFO] [stderr] 25: 0x6220f27f8610 - std::panicking::catch_unwind::h60074fd2327f40bd [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:553:19 [INFO] [stderr] 26: 0x6220f27f8610 - std::panic::catch_unwind::heb14fa8e39d051cf [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panic.rs:359:14 [INFO] [stderr] 27: 0x6220f27f8610 - std::rt::lang_start_internal::{{closure}}::hfb550bec36306a19 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/rt.rs:175:24 [INFO] [stderr] 28: 0x6220f27f8610 - std::panicking::catch_unwind::do_call::hc805f36f35b6d647 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:590:40 [INFO] [stderr] 29: 0x6220f27f8610 - std::panicking::catch_unwind::hb8d32f0195463ad2 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panicking.rs:553:19 [INFO] [stderr] 30: 0x6220f27f8610 - std::panic::catch_unwind::hcebe3b1d5adfc5a2 [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/panic.rs:359:14 [INFO] [stderr] 31: 0x6220f27f8610 - std::rt::lang_start_internal::h27f55ed238aa26df [INFO] [stderr] at /rustc/c2e32f1c9652b13ed99608599c1e855462f421f3/library/std/src/rt.rs:171:5 [INFO] [stderr] 32: 0x6220f27ad8d1 - std::rt::lang_start::h6d1ec6125873e6f6 [INFO] [stderr] 33: 0x6220f27b00f5 - main [INFO] [stderr] 34: 0x7235db2381ca - [INFO] [stderr] 35: 0x7235db23828b - __libc_start_main [INFO] [stderr] 36: 0x6220f27a9ab5 - _start [INFO] [stderr] 37: 0x0 - [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "35c8a0113720d43b1fff3ea0ee58ea2d1b769c01ae31992a8ec7783cb1422ede", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "35c8a0113720d43b1fff3ea0ee58ea2d1b769c01ae31992a8ec7783cb1422ede", kill_on_drop: false }` [INFO] [stdout] 35c8a0113720d43b1fff3ea0ee58ea2d1b769c01ae31992a8ec7783cb1422ede