[INFO] cloning repository https://github.com/simonbuchan/rust-vk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simonbuchan/rust-vk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonbuchan%2Frust-vk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonbuchan%2Frust-vk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 379d034421409cb3d698718877f606e2fd2d5192
[INFO] checking simonbuchan/rust-vk against try#6619027b13a87a3597115f2c8231f107bf3a7a5f for pr-139624
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonbuchan%2Frust-vk" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/simonbuchan/rust-vk on toolchain 6619027b13a87a3597115f2c8231f107bf3a7a5f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/simonbuchan/rust-vk
[INFO] finished tweaking git repo https://github.com/simonbuchan/rust-vk
[INFO] tweaked toml for git repo https://github.com/simonbuchan/rust-vk written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/simonbuchan/rust-vk 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" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded instant v0.1.5
[INFO] [stderr]   Downloaded cc v1.0.56
[INFO] [stderr]   Downloaded shaderc v0.6.2
[INFO] [stderr]   Downloaded calloop v0.4.4
[INFO] [stderr]   Downloaded libloading v0.6.2
[INFO] [stderr]   Downloaded winit v0.22.2
[INFO] [stderr]   Downloaded shaderc-sys v0.6.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0a563605e235d7c49242c2e712a371825707dc85bfd5147e929ad2b7921ab42
[INFO] running `Command { std: "docker" "start" "-a" "d0a563605e235d7c49242c2e712a371825707dc85bfd5147e929ad2b7921ab42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0a563605e235d7c49242c2e712a371825707dc85bfd5147e929ad2b7921ab42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0a563605e235d7c49242c2e712a371825707dc85bfd5147e929ad2b7921ab42", kill_on_drop: false }`
[INFO] [stdout] d0a563605e235d7c49242c2e712a371825707dc85bfd5147e929ad2b7921ab42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b409cb10ea32403369231aaabb997a9d7c05860c3fd1541a936aa27f7d39b35
[INFO] running `Command { std: "docker" "start" "-a" "3b409cb10ea32403369231aaabb997a9d7c05860c3fd1541a936aa27f7d39b35", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling libloading v0.6.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling cc v1.0.56
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking wayland-sys v0.23.6
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]     Checking adler32 v1.1.0
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.1.0
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]    Compiling shaderc-sys v0.6.2
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking inotify v0.7.1
[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-59830a81b6968ccc/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' 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:     0x574110846002 - std::backtrace_rs::backtrace::libunwind::trace::h53cfce9aa7a63ee9
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x574110846002 - std::backtrace_rs::backtrace::trace_unsynchronized::h5ffc4f00de1425b0
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x574110846002 - std::sys::backtrace::_print_fmt::hc25e9d256eef855b
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x574110846002 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::haea179c93dfa289e
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x574110867b13 - core::fmt::rt::Argument::fmt::h23f55606135c3477
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/core/src/fmt/rt.rs:153:76
[INFO] [stderr]      5:     0x574110867b13 - core::fmt::write::hd438c93c750162ed
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/core/src/fmt/mod.rs:1481:21
[INFO] [stderr]      6:     0x574110842ab3 - std::io::default_write_fmt::hdcfb7def7a38a745
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x574110842ab3 - std::io::Write::write_fmt::h479d0d6dfb333900
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/std/src/io/mod.rs:1914:13
[INFO] [stderr]      8:     0x574110845e52 - std::sys::backtrace::BacktraceLock::print::hcf83cbb7dfe7de28
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x574110847242 - std::panicking::default_hook::{{closure}}::h7a4aa8694ceebfd1
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/std/src/panicking.rs:300:22
[INFO] [stderr]     10:     0x574110847045 - std::panicking::default_hook::ha6c7d6c8b36f28a8
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/std/src/panicking.rs:327:9
[INFO] [stderr]     11:     0x574110847c22 - std::panicking::rust_panic_with_hook::h465857b0b6527eb3
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/std/src/panicking.rs:833:13
[INFO] [stderr]     12:     0x5741108479aa - std::panicking::begin_panic_handler::{{closure}}::h9cb4d0a948474232
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/std/src/panicking.rs:706:13
[INFO] [stderr]     13:     0x5741108464f9 - std::sys::backtrace::__rust_end_short_backtrace::h7219ff3a70551382
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/std/src/sys/backtrace.rs:168:18
[INFO] [stderr]     14:     0x57411084763d - __rustc[82c81e2fa2bc91e2]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/std/src/panicking.rs:697:5
[INFO] [stderr]     15:     0x574110866a40 - core::panicking::panic_fmt::h77a92a81825658e0
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/core/src/panicking.rs:75:14
[INFO] [stderr]     16:     0x5741107db8b8 - build_script_build::cmd_finder::CommandFinder::must_have::{{closure}}::h3f48cfd7ab25490c
[INFO] [stderr]     17:     0x5741107d9345 - core::option::Option<T>::unwrap_or_else::h4e00cb2b274198a9
[INFO] [stderr]     18:     0x5741107db83c - build_script_build::cmd_finder::CommandFinder::must_have::ha89b8c2896753a25
[INFO] [stderr]     19:     0x5741107de1a4 - build_script_build::main::h04f7037f932facf0
[INFO] [stderr]     20:     0x5741107d8b33 - core::ops::function::FnOnce::call_once::h7ea5f10210984a37
[INFO] [stderr]     21:     0x5741107d8416 - std::sys::backtrace::__rust_begin_short_backtrace::h6a9c711765084377
[INFO] [stderr]     22:     0x5741107d8399 - std::rt::lang_start::{{closure}}::h7bc740ddea1d476f
[INFO] [stderr]     23:     0x57411083ea20 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hae0df2d42960110c
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     24:     0x57411083ea20 - std::panicking::try::do_call::hb37739e93ede4115
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/std/src/panicking.rs:589:40
[INFO] [stderr]     25:     0x57411083ea20 - std::panicking::try::heb831f8d36b659a9
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/std/src/panicking.rs:552:19
[INFO] [stderr]     26:     0x57411083ea20 - std::panic::catch_unwind::h89542a6d21aa10c6
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/std/src/panic.rs:359:14
[INFO] [stderr]     27:     0x57411083ea20 - std::rt::lang_start_internal::{{closure}}::h4b085f3165125e24
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/std/src/rt.rs:168:24
[INFO] [stderr]     28:     0x57411083ea20 - std::panicking::try::do_call::h586336bef9a4d253
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/std/src/panicking.rs:589:40
[INFO] [stderr]     29:     0x57411083ea20 - std::panicking::try::h69c8f8b7d1711607
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/std/src/panicking.rs:552:19
[INFO] [stderr]     30:     0x57411083ea20 - std::panic::catch_unwind::h71f9f85d6d5944e7
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/std/src/panic.rs:359:14
[INFO] [stderr]     31:     0x57411083ea20 - std::rt::lang_start_internal::he05f33c57c93fdd9
[INFO] [stderr]                                  at /rustc/6619027b13a87a3597115f2c8231f107bf3a7a5f/library/std/src/rt.rs:164:5
[INFO] [stderr]     32:     0x5741107d8381 - std::rt::lang_start::h4ddee16cd27a8ff3
[INFO] [stderr]     33:     0x5741107deb35 - main
[INFO] [stderr]     34:     0x70f2ed4bb1ca - <unknown>
[INFO] [stderr]     35:     0x70f2ed4bb28b - __libc_start_main
[INFO] [stderr]     36:     0x5741107d7b75 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3b409cb10ea32403369231aaabb997a9d7c05860c3fd1541a936aa27f7d39b35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b409cb10ea32403369231aaabb997a9d7c05860c3fd1541a936aa27f7d39b35", kill_on_drop: false }`
[INFO] [stdout] 3b409cb10ea32403369231aaabb997a9d7c05860c3fd1541a936aa27f7d39b35