[INFO] fetching crate metropolis 0.9.1...
[INFO] testing metropolis-0.9.1 against 1.91.0 for beta-1.92-2
[INFO] extracting crate metropolis 0.9.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate metropolis 0.9.1
[INFO] finished tweaking crates.io crate metropolis 0.9.1
[INFO] tweaked toml for crates.io crate metropolis 0.9.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate metropolis 0.9.1 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate metropolis 0.9.1 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wayland-sys v0.21.13
[INFO] [stderr]   Downloaded hermit-abi v0.1.3
[INFO] [stderr]   Downloaded dlib v0.4.1
[INFO] [stderr]   Downloaded pkg-config v0.3.16
[INFO] [stderr]   Downloaded winapi-util v0.1.2
[INFO] [stderr]   Downloaded wayland-commons v0.21.13
[INFO] [stderr]   Downloaded adler32 v1.0.4
[INFO] [stderr]   Downloaded cc v1.0.46
[INFO] [stderr]   Downloaded arrayvec v0.5.1
[INFO] [stderr]   Downloaded png v0.15.1
[INFO] [stderr]   Downloaded cmake v0.1.42
[INFO] [stderr]   Downloaded vk-sys v0.5.0
[INFO] [stderr]   Downloaded rustc-demangle v0.1.16
[INFO] [stderr]   Downloaded winit v0.19.5
[INFO] [stderr]   Downloaded cocoa v0.18.5
[INFO] [stderr]   Downloaded wayland-protocols v0.21.13
[INFO] [stderr]   Downloaded nix v0.14.1
[INFO] [stderr]   Downloaded backtrace-sys v0.1.32
[INFO] [stderr]   Downloaded syn v1.0.8
[INFO] [stderr]   Downloaded deflate v0.7.20
[INFO] [stderr]   Downloaded crossbeam-channel v0.3.9
[INFO] [stderr]   Downloaded vulkano v0.16.0
[INFO] [stderr]   Downloaded rusttype v0.8.1
[INFO] [stderr]   Downloaded smithay-client-toolkit v0.4.6
[INFO] [stderr]   Downloaded shaderc v0.6.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.6
[INFO] [stderr]   Downloaded crossbeam v0.7.2
[INFO] [stderr]   Downloaded half v1.4.0
[INFO] [stderr]   Downloaded vulkano-win v0.16.0
[INFO] [stderr]   Downloaded objc_exception v0.1.1
[INFO] [stderr]   Downloaded crossbeam-epoch v0.7.2
[INFO] [stderr]   Downloaded lock_api v0.3.1
[INFO] [stderr]   Downloaded redox_syscall v0.1.56
[INFO] [stderr]   Downloaded smallvec v0.6.10
[INFO] [stderr]   Downloaded crossbeam-deque v0.7.1
[INFO] [stderr]   Downloaded linked-hash-map v0.5.2
[INFO] [stderr]   Downloaded num_cpus v1.11.1
[INFO] [stderr]   Downloaded autocfg v0.1.7
[INFO] [stderr]   Downloaded num-traits v0.2.8
[INFO] [stderr]   Downloaded ordered-float v1.0.2
[INFO] [stderr]   Downloaded rustc-hash v1.0.1
[INFO] [stderr]   Downloaded byteorder v1.3.2
[INFO] [stderr]   Downloaded stb_truetype v0.3.0
[INFO] [stderr]   Downloaded rusttype v0.7.9
[INFO] [stderr]   Downloaded walkdir v2.2.9
[INFO] [stderr]   Downloaded andrew v0.2.1
[INFO] [stderr]   Downloaded x11-dl v2.18.4
[INFO] [stderr]   Downloaded vulkano-shaders v0.16.0
[INFO] [stderr]   Downloaded cocoa v0.19.1
[INFO] [stderr]   Downloaded libc v0.2.65
[INFO] [stderr]   Downloaded metal v0.17.0
[INFO] [stderr]   Downloaded crossbeam-queue v0.1.2
[INFO] [stderr]   Downloaded backtrace v0.3.40
[INFO] [stderr]   Downloaded core-graphics v0.17.3
[INFO] [stderr]   Downloaded parking_lot_core v0.6.2
[INFO] [stderr]   Downloaded raw-window-handle v0.3.0
[INFO] [stderr]   Downloaded memoffset v0.5.1
[INFO] [stderr]   Downloaded scopeguard v1.0.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.6.6
[INFO] [stderr]   Downloaded xml-rs v0.8.0
[INFO] [stderr]   Downloaded wayland-client v0.21.13
[INFO] [stderr]   Downloaded same-file v1.0.5
[INFO] [stderr]   Downloaded downcast-rs v1.1.0
[INFO] [stderr]   Downloaded line_drawing v0.7.0
[INFO] [stderr]   Downloaded wayland-scanner v0.21.13
[INFO] [stderr]   Downloaded crc32fast v1.2.0
[INFO] [stderr]   Downloaded inflate v0.4.5
[INFO] [stderr]   Downloaded shaderc-sys v0.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3527ecd28d47a19bb8dd602d1549f31a5da60e6c574a58efd834c93d0ece710f
[INFO] running `Command { std: "docker" "start" "-a" "3527ecd28d47a19bb8dd602d1549f31a5da60e6c574a58efd834c93d0ece710f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3527ecd28d47a19bb8dd602d1549f31a5da60e6c574a58efd834c93d0ece710f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3527ecd28d47a19bb8dd602d1549f31a5da60e6c574a58efd834c93d0ece710f", kill_on_drop: false }`
[INFO] [stdout] 3527ecd28d47a19bb8dd602d1549f31a5da60e6c574a58efd834c93d0ece710f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1b2e98b0551e8d1ccbe967c2938536c00532cc8af10d31235de8aba7eb8c12d
[INFO] running `Command { std: "docker" "start" "-a" "d1b2e98b0551e8d1ccbe967c2938536c00532cc8af10d31235de8aba7eb8c12d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling cc v1.0.46
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling stb_truetype v0.3.0
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling wayland-sys v0.21.13
[INFO] [stderr]    Compiling rustc-hash v1.0.1
[INFO] [stderr]    Compiling linked-hash-map v0.5.2
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling ordered-float v1.0.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling same-file v1.0.5
[INFO] [stderr]    Compiling downcast-rs v1.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.16
[INFO] [stderr]    Compiling smallvec v0.6.10
[INFO] [stderr]    Compiling rusttype v0.8.1
[INFO] [stderr]    Compiling walkdir v2.2.9
[INFO] [stderr]    Compiling shaderc-sys v0.6.1
[INFO] [stderr]    Compiling line_drawing v0.7.0
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling xdg v2.2.0
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling rusttype v0.7.9
[INFO] [stderr] warning: shaderc-sys@0.6.1: Checking for system installed libraries.  Use --features = build-from-source to disable this behavior
[INFO] [stderr] warning: shaderc-sys@0.6.1: System installed library not found.  Falling back to build from source
[INFO] [stderr] error: failed to run custom build command for `shaderc-sys v0.6.1`
[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-dede51ce88601006/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' (691) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/shaderc-sys-0.6.1/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:     0x5ae49a9d6102 - std::backtrace_rs::backtrace::libunwind::trace::h62f3c6bea0fedab3
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5ae49a9d6102 - std::backtrace_rs::backtrace::trace_unsynchronized::hc41aaca6c0af0bde
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5ae49a9d6102 - std::sys::backtrace::_print_fmt::h33ac2b97007106cc
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5ae49a9d6102 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h4e0a3aeea0f9c085
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5ae49a9e640f - core::fmt::rt::Argument::fmt::h1edd6a3e00b22f10
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x5ae49a9e640f - core::fmt::write::hecf68a131630c74d
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/fmt/mod.rs:1468:25
[INFO] [stderr]      6:     0x5ae49a9a6a91 - std::io::default_write_fmt::haf8355dc2afbec95
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5ae49a9a6a91 - std::io::Write::write_fmt::h93c9a261259c931a
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x5ae49a9b1562 - std::sys::backtrace::BacktraceLock::print::h75160192768e5621
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x5ae49a9b3e7c - std::panicking::default_hook::{{closure}}::h14d82797cfb1ddcb
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x5ae49a9b3cd6 - std::panicking::default_hook::h63f9bf8161c5d325
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x5ae49a9b4505 - std::panicking::panic_with_hook::h3173740e06bd0752
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x5ae49a9b439a - std::panicking::panic_handler::{{closure}}::hbac492c61eb56a87
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:707:13
[INFO] [stderr]     13:     0x5ae49a9b16a9 - std::sys::backtrace::__rust_end_short_backtrace::haa3eac3df9535320
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x5ae49a99ae3d - __rustc[de0091b922c53d7e]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x5ae49a9e9e30 - core::panicking::panic_fmt::h5138da2ef87be35b
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/panicking.rs:75:14
[INFO] [stderr]     16:     0x5ae49a9569eb - build_script_build::cmd_finder::CommandFinder::must_have::{{closure}}::h13d92e1033d667d3
[INFO] [stderr]     17:     0x5ae49a95b2c5 - core::option::Option<T>::unwrap_or_else::hd76a3e66f4c55e75
[INFO] [stderr]     18:     0x5ae49a95696c - build_script_build::cmd_finder::CommandFinder::must_have::h72602020a5fc5a13
[INFO] [stderr]     19:     0x5ae49a9595e7 - build_script_build::main::h448119d45a56426a
[INFO] [stderr]     20:     0x5ae49a95a603 - core::ops::function::FnOnce::call_once::h7c149b8379b8befd
[INFO] [stderr]     21:     0x5ae49a95a1d6 - std::sys::backtrace::__rust_begin_short_backtrace::hd1c9befdeb5d98f4
[INFO] [stderr]     22:     0x5ae49a95a109 - std::rt::lang_start::{{closure}}::h49e190addf59fd46
[INFO] [stderr]     23:     0x5ae49a9a8450 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hc7ed5622678f5124
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     24:     0x5ae49a9a8450 - std::panicking::catch_unwind::do_call::hc59414a11cf2a25a
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:590:40
[INFO] [stderr]     25:     0x5ae49a9a8450 - std::panicking::catch_unwind::hff67b45e0819a036
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:553:19
[INFO] [stderr]     26:     0x5ae49a9a8450 - std::panic::catch_unwind::hec0fb0db85f7fd60
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panic.rs:359:14
[INFO] [stderr]     27:     0x5ae49a9a8450 - std::rt::lang_start_internal::{{closure}}::h74bea026352620a3
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/rt.rs:175:24
[INFO] [stderr]     28:     0x5ae49a9a8450 - std::panicking::catch_unwind::do_call::h931ef1bf7bdfcae2
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:590:40
[INFO] [stderr]     29:     0x5ae49a9a8450 - std::panicking::catch_unwind::h3816830c825cbe04
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:553:19
[INFO] [stderr]     30:     0x5ae49a9a8450 - std::panic::catch_unwind::h408406c8f02ebb9d
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panic.rs:359:14
[INFO] [stderr]     31:     0x5ae49a9a8450 - std::rt::lang_start_internal::hce2b8b328837374b
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/rt.rs:171:5
[INFO] [stderr]     32:     0x5ae49a95a0f1 - std::rt::lang_start::h99353219f19b438b
[INFO] [stderr]     33:     0x5ae49a95cb55 - main
[INFO] [stderr]     34:     0x74bf865261ca - <unknown>
[INFO] [stderr]     35:     0x74bf8652628b - __libc_start_main
[INFO] [stderr]     36:     0x5ae49a955a85 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d1b2e98b0551e8d1ccbe967c2938536c00532cc8af10d31235de8aba7eb8c12d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1b2e98b0551e8d1ccbe967c2938536c00532cc8af10d31235de8aba7eb8c12d", kill_on_drop: false }`
[INFO] [stdout] d1b2e98b0551e8d1ccbe967c2938536c00532cc8af10d31235de8aba7eb8c12d
