[INFO] cloning repository https://github.com/andrew-pa/vkrg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andrew-pa/vkrg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrew-pa%2Fvkrg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrew-pa%2Fvkrg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a2fe88f455d45041a3f850ad97d728752b09eef5
[INFO] checking andrew-pa/vkrg against try#1bdcb63291ccffc030f8223f6f978568dd240e3e for 155501-infallible-never-with-reservation
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrew-pa%2Fvkrg" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/andrew-pa/vkrg
[INFO] finished tweaking git repo https://github.com/andrew-pa/vkrg
[INFO] tweaked toml for git repo https://github.com/andrew-pa/vkrg written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/andrew-pa/vkrg on toolchain 1bdcb63291ccffc030f8223f6f978568dd240e3e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/andrew-pa/vkrg 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" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bab94a66ada3c9b427e97c277519b2289bfe2a064dd1b3ff96f00bd45bb654f7
[INFO] running `Command { std: "docker" "start" "-a" "bab94a66ada3c9b427e97c277519b2289bfe2a064dd1b3ff96f00bd45bb654f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bab94a66ada3c9b427e97c277519b2289bfe2a064dd1b3ff96f00bd45bb654f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bab94a66ada3c9b427e97c277519b2289bfe2a064dd1b3ff96f00bd45bb654f7", kill_on_drop: false }`
[INFO] [stdout] bab94a66ada3c9b427e97c277519b2289bfe2a064dd1b3ff96f00bd45bb654f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 62265fe621c4d907f48ba7b5fe8c8e9c342ea414ee337f5421be86a8947a4ae5
[INFO] running `Command { std: "docker" "start" "-a" "62265fe621c4d907f48ba7b5fe8c8e9c342ea414ee337f5421be86a8947a4ae5", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.14
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling syn v1.0.23
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]     Checking downcast-rs v1.1.1
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking crossbeam-channel v0.4.2
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]    Compiling shaderc-sys v0.6.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling vulkano v0.18.0
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking wayland-sys v0.23.6
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking instant v0.1.4
[INFO] [stderr]     Checking vk-sys v0.5.1
[INFO] [stderr]     Checking tobj v2.0.0
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr] warning: shaderc-sys@0.6.2: Checking for system installed libraries.  Use --features = build-from-source to disable this behavior
[INFO] [stderr] warning: shaderc-sys@0.6.2: System installed library not found.  Falling back to build from source
[INFO] [stderr] error: failed to run custom build command for `shaderc-sys v0.6.2`
[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/shaderc-sys-3904644f32d17473/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] 
[INFO] [stderr]   thread 'main' (1364) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/shaderc-sys-0.6.2/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:     0x646a49a779ba - std[b340ac9335ccb617]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x646a49a779ba - std[b340ac9335ccb617]::backtrace_rs::backtrace::trace_unsynchronized::<std[b340ac9335ccb617]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x646a49a779ba - std[b340ac9335ccb617]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x646a49a779ba - <<std[b340ac9335ccb617]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[3ed789ebc04b9bfd]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x646a49a8b99a - <core[3ed789ebc04b9bfd]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x646a49a8b99a - core[3ed789ebc04b9bfd]::fmt::write
[INFO] [stderr]      6:     0x646a49a7d812 - std[b340ac9335ccb617]::io::default_write_fmt::<std[b340ac9335ccb617]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/std/src/io/mod.rs:621:11
[INFO] [stderr]      7:     0x646a49a7d812 - <std[b340ac9335ccb617]::sys::stdio::unix::Stderr as std[b340ac9335ccb617]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/std/src/io/mod.rs:1976:13
[INFO] [stderr]      8:     0x646a49a5983f - <std[b340ac9335ccb617]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x646a49a5983f - std[b340ac9335ccb617]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x646a49a72821 - std[b340ac9335ccb617]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x646a49a729db - std[b340ac9335ccb617]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x646a49a598f8 - std[b340ac9335ccb617]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x646a49a4ea59 - std[b340ac9335ccb617]::sys::backtrace::__rust_end_short_backtrace::<std[b340ac9335ccb617]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x646a49a5a25d - __rustc[ed66c1841e5b66bf]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x646a49a8c08c - core[3ed789ebc04b9bfd]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x646a49a00c36 - <build_script_build[59d2ab07c64b8f68]::cmd_finder::CommandFinder>::must_have::<&str>::{closure#0}
[INFO] [stderr]     17:     0x646a499ff299 - <core[3ed789ebc04b9bfd]::option::Option<std[b340ac9335ccb617]::path::PathBuf>>::unwrap_or_else::<<build_script_build[59d2ab07c64b8f68]::cmd_finder::CommandFinder>::must_have<&str>::{closure#0}>
[INFO] [stderr]     18:     0x646a499ff5fc - <build_script_build[59d2ab07c64b8f68]::cmd_finder::CommandFinder>::must_have::<&str>
[INFO] [stderr]     19:     0x646a49a03aae - build_script_build[59d2ab07c64b8f68]::main
[INFO] [stderr]     20:     0x646a49a05573 - <fn() as core[3ed789ebc04b9bfd]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     21:     0x646a49a00156 - std[b340ac9335ccb617]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     22:     0x646a49a00c59 - std[b340ac9335ccb617]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     23:     0x646a49a71917 - <&dyn core[3ed789ebc04b9bfd]::ops::function::Fn<(), Output = i32> + core[3ed789ebc04b9bfd]::panic::unwind_safe::RefUnwindSafe + core[3ed789ebc04b9bfd]::marker::Sync as core[3ed789ebc04b9bfd]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     24:     0x646a49a71917 - std[b340ac9335ccb617]::panicking::catch_unwind::do_call::<&dyn core[3ed789ebc04b9bfd]::ops::function::Fn<(), Output = i32> + core[3ed789ebc04b9bfd]::panic::unwind_safe::RefUnwindSafe + core[3ed789ebc04b9bfd]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/std/src/panicking.rs:581:40
[INFO] [stderr]     25:     0x646a49a71917 - std[b340ac9335ccb617]::panicking::catch_unwind::<i32, &dyn core[3ed789ebc04b9bfd]::ops::function::Fn<(), Output = i32> + core[3ed789ebc04b9bfd]::panic::unwind_safe::RefUnwindSafe + core[3ed789ebc04b9bfd]::marker::Sync>
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/std/src/panicking.rs:544:19
[INFO] [stderr]     26:     0x646a49a71917 - std[b340ac9335ccb617]::panic::catch_unwind::<&dyn core[3ed789ebc04b9bfd]::ops::function::Fn<(), Output = i32> + core[3ed789ebc04b9bfd]::panic::unwind_safe::RefUnwindSafe + core[3ed789ebc04b9bfd]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/std/src/panic.rs:359:14
[INFO] [stderr]     27:     0x646a49a71917 - std[b340ac9335ccb617]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/std/src/rt.rs:175:24
[INFO] [stderr]     28:     0x646a49a71917 - std[b340ac9335ccb617]::panicking::catch_unwind::do_call::<std[b340ac9335ccb617]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/std/src/panicking.rs:581:40
[INFO] [stderr]     29:     0x646a49a71917 - std[b340ac9335ccb617]::panicking::catch_unwind::<isize, std[b340ac9335ccb617]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/std/src/panicking.rs:544:19
[INFO] [stderr]     30:     0x646a49a71917 - std[b340ac9335ccb617]::panic::catch_unwind::<std[b340ac9335ccb617]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/std/src/panic.rs:359:14
[INFO] [stderr]     31:     0x646a49a71917 - std[b340ac9335ccb617]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/1bdcb63291ccffc030f8223f6f978568dd240e3e/library/std/src/rt.rs:171:5
[INFO] [stderr]     32:     0x646a49a00141 - std[b340ac9335ccb617]::rt::lang_start::<()>
[INFO] [stderr]     33:     0x646a49a056f5 - main
[INFO] [stderr]     34:     0x7dc8093a11ca - <unknown>
[INFO] [stderr]     35:     0x7dc8093a128b - __libc_start_main
[INFO] [stderr]     36:     0x646a499fe935 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "62265fe621c4d907f48ba7b5fe8c8e9c342ea414ee337f5421be86a8947a4ae5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62265fe621c4d907f48ba7b5fe8c8e9c342ea414ee337f5421be86a8947a4ae5", kill_on_drop: false }`
[INFO] [stdout] 62265fe621c4d907f48ba7b5fe8c8e9c342ea414ee337f5421be86a8947a4ae5
