[INFO] cloning repository https://github.com/thara/learn-wgpu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thara/learn-wgpu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Flearn-wgpu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Flearn-wgpu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 26dc2e01a5cb72525d597fca341363bdc8ab0891
[INFO] checking thara/learn-wgpu against ba28ff76f353a722f31c4f3dd2ac4e437d36411b for pr-160780
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Flearn-wgpu" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/thara/learn-wgpu
[INFO] finished tweaking git repo https://github.com/thara/learn-wgpu
[INFO] tweaked toml for git repo https://github.com/thara/learn-wgpu written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/thara/learn-wgpu on toolchain ba28ff76f353a722f31c4f3dd2ac4e437d36411b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ba28ff76f353a722f31c4f3dd2ac4e437d36411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/thara/learn-wgpu 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" "+ba28ff76f353a722f31c4f3dd2ac4e437d36411b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 01df1d20cd6393b76d54214d6f06c5db36fe87e6ad7eee019e4c1ac5e891e187
[INFO] running `Command { std: "docker" "start" "01df1d20cd6393b76d54214d6f06c5db36fe87e6ad7eee019e4c1ac5e891e187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01df1d20cd6393b76d54214d6f06c5db36fe87e6ad7eee019e4c1ac5e891e187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "01df1d20cd6393b76d54214d6f06c5db36fe87e6ad7eee019e4c1ac5e891e187" "/opt/rustwide/cargo-home/bin/cargo" "+ba28ff76f353a722f31c4f3dd2ac4e437d36411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01df1d20cd6393b76d54214d6f06c5db36fe87e6ad7eee019e4c1ac5e891e187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "01df1d20cd6393b76d54214d6f06c5db36fe87e6ad7eee019e4c1ac5e891e187" "/opt/rustwide/cargo-home/bin/cargo" "+ba28ff76f353a722f31c4f3dd2ac4e437d36411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.65
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking byteorder v1.4.2
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[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling const_fn v0.4.5
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking spirv_headers v1.5.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling spirv_cross v0.23.1
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
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[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]    Compiling shaderc-sys v0.7.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling khronos-egl v3.0.2
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr] warning: shaderc-sys@0.7.1: shaderc: searching for native shaderc libraries on system;  use '--features build-from-source' to force building from source code
[INFO] [stderr] warning: shaderc-sys@0.7.1: shaderc: cannot find native shaderc library on system; falling back to build from source
[INFO] [stderr] error: failed to run custom build command for `shaderc-sys v0.7.1`
[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/3dece2ed97e78ff5/out/build_script_build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:warning=shaderc: searching for native shaderc libraries on system;  use '--features build-from-source' to force building from source code
[INFO] [stderr]   cargo:warning=shaderc: cannot find native shaderc library on system; falling back to build from source
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (963) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/shaderc-sys-0.7.1/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:     0x628056c24311 - std[289e6463c60644ad]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x628056c24311 - std[289e6463c60644ad]::backtrace_rs::backtrace::trace_unsynchronized::<std[289e6463c60644ad]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x628056c24311 - std[289e6463c60644ad]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x628056c24311 - <<std[289e6463c60644ad]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[f901dee16a3582b]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x628056c388fa - <core[f901dee16a3582b]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x628056c388fa - core[f901dee16a3582b]::fmt::write
[INFO] [stderr]      6:     0x628056c2a0ec - core[f901dee16a3582b]::io::write::default_write_fmt::<std[289e6463c60644ad]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/core/src/io/write.rs:402:11
[INFO] [stderr]      7:     0x628056c2a0ec - <std[289e6463c60644ad]::sys::stdio::unix::Stderr as core[f901dee16a3582b]::io::write::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/core/src/io/write.rs:335:13
[INFO] [stderr]      8:     0x628056c02276 - <std[289e6463c60644ad]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x628056c02276 - std[289e6463c60644ad]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x628056c1e541 - std[289e6463c60644ad]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x628056c1e6fb - std[289e6463c60644ad]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/std/src/panicking.rs:815:13
[INFO] [stderr]     12:     0x628056c02322 - std[289e6463c60644ad]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/std/src/panicking.rs:688:13
[INFO] [stderr]     13:     0x628056bfab69 - std[289e6463c60644ad]::sys::backtrace::__rust_end_short_backtrace::<std[289e6463c60644ad]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x628056c02b3d - __rustc[5f650fa12cddb854]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/std/src/panicking.rs:679:5
[INFO] [stderr]     15:     0x628056c3906c - core[f901dee16a3582b]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x628056ba3c76 - <build_script_build[bf4567b5746f0644]::cmd_finder::CommandFinder>::must_have::<&str>::{closure#0}
[INFO] [stderr]     17:     0x628056ba1390 - <core[f901dee16a3582b]::option::Option<std[289e6463c60644ad]::path::PathBuf>>::unwrap_or_else::<<build_script_build[bf4567b5746f0644]::cmd_finder::CommandFinder>::must_have<&str>::{closure#0}>
[INFO] [stderr]     18:     0x628056ba16a0 - <build_script_build[bf4567b5746f0644]::cmd_finder::CommandFinder>::must_have::<&str>
[INFO] [stderr]     19:     0x628056ba772c - build_script_build[bf4567b5746f0644]::main
[INFO] [stderr]     20:     0x628056ba9fa3 - <fn() as core[f901dee16a3582b]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     21:     0x628056ba31fe - std[289e6463c60644ad]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     22:     0x628056ba3e09 - std[289e6463c60644ad]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     23:     0x628056c1d907 - <&dyn core[f901dee16a3582b]::ops::function::Fn<(), Output = i32> + core[f901dee16a3582b]::panic::unwind_safe::RefUnwindSafe + core[f901dee16a3582b]::marker::Sync as core[f901dee16a3582b]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     24:     0x628056c1d907 - std[289e6463c60644ad]::panicking::catch_unwind::do_call::<&dyn core[f901dee16a3582b]::ops::function::Fn<(), Output = i32> + core[f901dee16a3582b]::panic::unwind_safe::RefUnwindSafe + core[f901dee16a3582b]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/std/src/panicking.rs:576:43
[INFO] [stderr]     25:     0x628056c1d907 - std[289e6463c60644ad]::panicking::catch_unwind::<i32, &dyn core[f901dee16a3582b]::ops::function::Fn<(), Output = i32> + core[f901dee16a3582b]::panic::unwind_safe::RefUnwindSafe + core[f901dee16a3582b]::marker::Sync>
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/std/src/panicking.rs:544:19
[INFO] [stderr]     26:     0x628056c1d907 - std[289e6463c60644ad]::panic::catch_unwind::<&dyn core[f901dee16a3582b]::ops::function::Fn<(), Output = i32> + core[f901dee16a3582b]::panic::unwind_safe::RefUnwindSafe + core[f901dee16a3582b]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/std/src/panic.rs:359:14
[INFO] [stderr]     27:     0x628056c1d907 - std[289e6463c60644ad]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/std/src/rt.rs:175:24
[INFO] [stderr]     28:     0x628056c1d907 - std[289e6463c60644ad]::panicking::catch_unwind::do_call::<std[289e6463c60644ad]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/std/src/panicking.rs:576:43
[INFO] [stderr]     29:     0x628056c1d907 - std[289e6463c60644ad]::panicking::catch_unwind::<isize, std[289e6463c60644ad]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/std/src/panicking.rs:544:19
[INFO] [stderr]     30:     0x628056c1d907 - std[289e6463c60644ad]::panic::catch_unwind::<std[289e6463c60644ad]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/std/src/panic.rs:359:14
[INFO] [stderr]     31:     0x628056c1d907 - std[289e6463c60644ad]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/ba28ff76f353a722f31c4f3dd2ac4e437d36411b/library/std/src/rt.rs:171:5
[INFO] [stderr]     32:     0x628056ba31f1 - std[289e6463c60644ad]::rt::lang_start::<()>
[INFO] [stderr]     33:     0x628056baa095 - main
[INFO] [stderr]     34:     0x7510c2093601 - <unknown>
[INFO] [stderr]     35:     0x7510c2093718 - __libc_start_main
[INFO] [stderr]     36:     0x628056ba0815 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "01df1d20cd6393b76d54214d6f06c5db36fe87e6ad7eee019e4c1ac5e891e187", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01df1d20cd6393b76d54214d6f06c5db36fe87e6ad7eee019e4c1ac5e891e187", kill_on_drop: false }`
[INFO] [stdout] 01df1d20cd6393b76d54214d6f06c5db36fe87e6ad7eee019e4c1ac5e891e187
