[INFO] cloning repository https://github.com/cynic64/re-basic-cube-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cynic64/re-basic-cube-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcynic64%2Fre-basic-cube-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcynic64%2Fre-basic-cube-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4f2fabf0c5a5643f0b005c276b06f10875c546a
[INFO] checking cynic64/re-basic-cube-demo against master#89a99936d9e76a50e8df622e7242190841fd871b for pr-156160-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcynic64%2Fre-basic-cube-demo" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cynic64/re-basic-cube-demo
[INFO] finished tweaking git repo https://github.com/cynic64/re-basic-cube-demo
[INFO] tweaked toml for git repo https://github.com/cynic64/re-basic-cube-demo written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cynic64/re-basic-cube-demo on toolchain 89a99936d9e76a50e8df622e7242190841fd871b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+89a99936d9e76a50e8df622e7242190841fd871b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cynic64/re-basic-cube-demo 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" "+89a99936d9e76a50e8df622e7242190841fd871b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/cynic64/render-engine`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:fd22e2154e7db748230f413534f3a6d034160c9d2b7c14b90fba4e9bfc1a36d4" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 513943fbdf5ca2348d66c470d0370b3b8e0804d6cbe44c5ada7e4cc7e34239b6
[INFO] running `Command { std: "docker" "start" "513943fbdf5ca2348d66c470d0370b3b8e0804d6cbe44c5ada7e4cc7e34239b6", 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" "513943fbdf5ca2348d66c470d0370b3b8e0804d6cbe44c5ada7e4cc7e34239b6" "/opt/rustwide/cargo-home/bin/cargo" "+89a99936d9e76a50e8df622e7242190841fd871b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "513943fbdf5ca2348d66c470d0370b3b8e0804d6cbe44c5ada7e4cc7e34239b6", 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" "513943fbdf5ca2348d66c470d0370b3b8e0804d6cbe44c5ada7e4cc7e34239b6" "/opt/rustwide/cargo-home/bin/cargo" "+89a99936d9e76a50e8df622e7242190841fd871b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling bitflags v1.1.0
[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 xml-rs v0.8.0
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling libloading v0.5.1
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]    Compiling cmake v0.1.40
[INFO] [stderr]     Checking stb_truetype v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]     Checking downcast-rs v1.0.4
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]     Checking same-file v1.0.4
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]     Checking rusttype v0.7.7
[INFO] [stderr]    Compiling shaderc-sys v0.5.0
[INFO] [stderr]     Checking walkdir v2.2.8
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr] warning: shaderc-sys@0.5.0: Checking for system installed libraries.  Use --features = build-from-source to disable this behavior
[INFO] [stderr] warning: shaderc-sys@0.5.0: Pre-built library not found.  Falling back to from-source build
[INFO] [stderr] error: failed to run custom build command for `shaderc-sys v0.5.0`
[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-804e9aeedb400017/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' (983) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/shaderc-sys-0.5.0/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:     0x5ca3f7b54fb8 - std[47088174cc9965d0]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5ca3f7b54fb8 - std[47088174cc9965d0]::backtrace_rs::backtrace::trace_unsynchronized::<std[47088174cc9965d0]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5ca3f7b54fb8 - std[47088174cc9965d0]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x5ca3f7b54fb8 - <<std[47088174cc9965d0]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[c4493224b449b92c]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x5ca3f7b68e9a - <core[c4493224b449b92c]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x5ca3f7b68e9a - core[c4493224b449b92c]::fmt::write
[INFO] [stderr]      6:     0x5ca3f7b5ad02 - std[47088174cc9965d0]::io::default_write_fmt::<std[47088174cc9965d0]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/std/src/io/mod.rs:623:11
[INFO] [stderr]      7:     0x5ca3f7b5ad02 - <std[47088174cc9965d0]::sys::stdio::unix::Stderr as std[47088174cc9965d0]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/std/src/io/mod.rs:1661:13
[INFO] [stderr]      8:     0x5ca3f7b36e36 - <std[47088174cc9965d0]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x5ca3f7b36e36 - std[47088174cc9965d0]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x5ca3f7b4fcb1 - std[47088174cc9965d0]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x5ca3f7b4fe6b - std[47088174cc9965d0]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/std/src/panicking.rs:814:13
[INFO] [stderr]     12:     0x5ca3f7b36ef2 - std[47088174cc9965d0]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/std/src/panicking.rs:687:13
[INFO] [stderr]     13:     0x5ca3f7b2c049 - std[47088174cc9965d0]::sys::backtrace::__rust_end_short_backtrace::<std[47088174cc9965d0]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x5ca3f7b3785d - __rustc[b32f34c4b5e7dc7]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/std/src/panicking.rs:678:5
[INFO] [stderr]     15:     0x5ca3f7b695cc - core[c4493224b449b92c]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5ca3f7ae3cb6 - <build_script_build[78ed68d8cda3c1b6]::cmd_finder::CommandFinder>::must_have::<&str>::{closure#0}
[INFO] [stderr]     17:     0x5ca3f7ae1660 - <core[c4493224b449b92c]::option::Option<std[47088174cc9965d0]::path::PathBuf>>::unwrap_or_else::<<build_script_build[78ed68d8cda3c1b6]::cmd_finder::CommandFinder>::must_have<&str>::{closure#0}>
[INFO] [stderr]     18:     0x5ca3f7ae15ec - <build_script_build[78ed68d8cda3c1b6]::cmd_finder::CommandFinder>::must_have::<&str>
[INFO] [stderr]     19:     0x5ca3f7ae62ee - build_script_build[78ed68d8cda3c1b6]::main
[INFO] [stderr]     20:     0x5ca3f7ae8993 - <fn() as core[c4493224b449b92c]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     21:     0x5ca3f7ae3206 - std[47088174cc9965d0]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     22:     0x5ca3f7ae3e59 - std[47088174cc9965d0]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     23:     0x5ca3f7b4f027 - <&dyn core[c4493224b449b92c]::ops::function::Fn<(), Output = i32> + core[c4493224b449b92c]::marker::Sync + core[c4493224b449b92c]::panic::unwind_safe::RefUnwindSafe as core[c4493224b449b92c]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     24:     0x5ca3f7b4f027 - std[47088174cc9965d0]::panicking::catch_unwind::do_call::<&dyn core[c4493224b449b92c]::ops::function::Fn<(), Output = i32> + core[c4493224b449b92c]::marker::Sync + core[c4493224b449b92c]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/std/src/panicking.rs:575:43
[INFO] [stderr]     25:     0x5ca3f7b4f027 - std[47088174cc9965d0]::panicking::catch_unwind::<i32, &dyn core[c4493224b449b92c]::ops::function::Fn<(), Output = i32> + core[c4493224b449b92c]::marker::Sync + core[c4493224b449b92c]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/std/src/panicking.rs:543:19
[INFO] [stderr]     26:     0x5ca3f7b4f027 - std[47088174cc9965d0]::panic::catch_unwind::<&dyn core[c4493224b449b92c]::ops::function::Fn<(), Output = i32> + core[c4493224b449b92c]::marker::Sync + core[c4493224b449b92c]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/std/src/panic.rs:359:14
[INFO] [stderr]     27:     0x5ca3f7b4f027 - std[47088174cc9965d0]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/std/src/rt.rs:175:24
[INFO] [stderr]     28:     0x5ca3f7b4f027 - std[47088174cc9965d0]::panicking::catch_unwind::do_call::<std[47088174cc9965d0]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/std/src/panicking.rs:575:43
[INFO] [stderr]     29:     0x5ca3f7b4f027 - std[47088174cc9965d0]::panicking::catch_unwind::<isize, std[47088174cc9965d0]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/std/src/panicking.rs:543:19
[INFO] [stderr]     30:     0x5ca3f7b4f027 - std[47088174cc9965d0]::panic::catch_unwind::<std[47088174cc9965d0]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/std/src/panic.rs:359:14
[INFO] [stderr]     31:     0x5ca3f7b4f027 - std[47088174cc9965d0]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/89a99936d9e76a50e8df622e7242190841fd871b/library/std/src/rt.rs:171:5
[INFO] [stderr]     32:     0x5ca3f7ae2e01 - std[47088174cc9965d0]::rt::lang_start::<()>
[INFO] [stderr]     33:     0x5ca3f7ae8b15 - main
[INFO] [stderr]     34:     0x735566f091ca - <unknown>
[INFO] [stderr]     35:     0x735566f0928b - __libc_start_main
[INFO] [stderr]     36:     0x5ca3f7ae0a05 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "513943fbdf5ca2348d66c470d0370b3b8e0804d6cbe44c5ada7e4cc7e34239b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "513943fbdf5ca2348d66c470d0370b3b8e0804d6cbe44c5ada7e4cc7e34239b6", kill_on_drop: false }`
[INFO] [stdout] 513943fbdf5ca2348d66c470d0370b3b8e0804d6cbe44c5ada7e4cc7e34239b6