[INFO] fetching crate timberwolf 0.5.0...
[INFO] testing timberwolf-0.5.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate timberwolf 0.5.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate timberwolf 0.5.0
[INFO] finished tweaking crates.io crate timberwolf 0.5.0
[INFO] tweaked toml for crates.io crate timberwolf 0.5.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate timberwolf 0.5.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 153 packages to latest compatible versions
[INFO] [stderr]       Adding cgmath v0.17.0 (available: v0.18.0)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] [stderr]       Adding winit v0.19.5 (available: v0.30.13)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wayland-scanner v0.21.13
[INFO] [stderr]   Downloaded shaderc v0.6.3
[INFO] [stderr]   Downloaded rendy-descriptor v0.5.1
[INFO] [stderr]   Downloaded rendy-init v0.5.1
[INFO] [stderr]   Downloaded cocoa v0.18.5
[INFO] [stderr]   Downloaded rendy-graph v0.5.1
[INFO] [stderr]   Downloaded rendy-resource v0.5.1
[INFO] [stderr]   Downloaded spirv-reflect v0.2.3
[INFO] [stderr]   Downloaded rendy-shader v0.5.1
[INFO] [stderr]   Downloaded spirv_headers v1.5.0
[INFO] [stderr]   Downloaded rendy-core v0.5.1
[INFO] [stderr]   Downloaded rendy-memory v0.5.2
[INFO] [stderr]   Downloaded thread_profiler v0.3.0
[INFO] [stderr]   Downloaded wayland-protocols v0.21.13
[INFO] [stderr]   Downloaded rendy-command v0.5.1
[INFO] [stderr]   Downloaded wayland-client v0.21.13
[INFO] [stderr]   Downloaded rendy-chain v0.5.1
[INFO] [stderr]   Downloaded rendy v0.5.1
[INFO] [stderr]   Downloaded cgmath v0.17.0
[INFO] [stderr]   Downloaded rendy-frame v0.5.1
[INFO] [stderr]   Downloaded hibitset v0.6.4
[INFO] [stderr]   Downloaded gfx-hal v0.4.1
[INFO] [stderr]   Downloaded rendy-factory v0.5.1
[INFO] [stderr]   Downloaded rendy-texture v0.5.1
[INFO] [stderr]   Downloaded winit v0.19.5
[INFO] [stderr]   Downloaded rendy-wsi v0.5.1
[INFO] [stderr]   Downloaded smithay-client-toolkit v0.4.6
[INFO] [stderr]   Downloaded wayland-commons v0.21.13
[INFO] [stderr]   Downloaded wayland-sys v0.21.13
[INFO] [stderr]   Downloaded rendy-mesh v0.5.1
[INFO] [stderr]   Downloaded shaderc-sys v0.6.3
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb4f7c9fca816329017e45f54ae4933a5c1903c146ed1b9e6fc6c0fc141c9f12
[INFO] running `Command { std: "docker" "start" "-a" "fb4f7c9fca816329017e45f54ae4933a5c1903c146ed1b9e6fc6c0fc141c9f12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb4f7c9fca816329017e45f54ae4933a5c1903c146ed1b9e6fc6c0fc141c9f12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb4f7c9fca816329017e45f54ae4933a5c1903c146ed1b9e6fc6c0fc141c9f12", kill_on_drop: false }`
[INFO] [stdout] fb4f7c9fca816329017e45f54ae4933a5c1903c146ed1b9e6fc6c0fc141c9f12
[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=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" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 488a4ff017756470774440f38c7a763f2cc2cb10bc2f73e3e5e7e110fd14ce28
[INFO] running `Command { std: "docker" "start" "-a" "488a4ff017756470774440f38c7a763f2cc2cb10bc2f73e3e5e7e110fd14ce28", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling cty v0.2.2
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]    Compiling gimli v0.32.3
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling raw-window-handle v0.4.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.27
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling raw-window-handle v0.3.4
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling gfx-hal v0.4.1
[INFO] [stderr]    Compiling colorful v0.2.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling hibitset v0.6.4
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling xml-rs v0.8.28
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling shaderc-sys v0.6.3
[INFO] [stderr]    Compiling dlib v0.4.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr] warning: shaderc-sys@0.6.3: Checking for system installed libraries.  Use --features = build-from-source to disable this behavior
[INFO] [stderr] warning: shaderc-sys@0.6.3: System installed library not found.  Falling back to build from source
[INFO] [stderr] error: failed to run custom build command for `shaderc-sys v0.6.3`
[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-901aadd527a2631b/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' (330) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/shaderc-sys-0.6.3/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:     0x5be3f5dc00da - std[31e582c13f4e914f]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5be3f5dc00da - std[31e582c13f4e914f]::backtrace_rs::backtrace::trace_unsynchronized::<std[31e582c13f4e914f]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5be3f5dc00da - std[31e582c13f4e914f]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x5be3f5dc00da - <<std[31e582c13f4e914f]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[fa0eadad68403074]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x5be3f5dd402a - <core[fa0eadad68403074]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x5be3f5dd402a - core[fa0eadad68403074]::fmt::write
[INFO] [stderr]      6:     0x5be3f5dc5f72 - std[31e582c13f4e914f]::io::default_write_fmt::<std[31e582c13f4e914f]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5be3f5dc5f72 - <std[31e582c13f4e914f]::sys::stdio::unix::Stderr as std[31e582c13f4e914f]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]      8:     0x5be3f5da170f - <std[31e582c13f4e914f]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x5be3f5da170f - std[31e582c13f4e914f]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x5be3f5dbae11 - std[31e582c13f4e914f]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x5be3f5dbafcb - std[31e582c13f4e914f]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x5be3f5da17c8 - std[31e582c13f4e914f]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x5be3f5d96929 - std[31e582c13f4e914f]::sys::backtrace::__rust_end_short_backtrace::<std[31e582c13f4e914f]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x5be3f5da212d - __rustc[fc8e3a9f23f26cb]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x5be3f5dd47bc - core[fa0eadad68403074]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5be3f5d0eef7 - <build_script_build[a317230b426015b6]::cmd_finder::CommandFinder>::must_have::<&str>::{closure#0}
[INFO] [stderr]     17:     0x5be3f5d0d819 - <core[fa0eadad68403074]::option::Option<std[31e582c13f4e914f]::path::PathBuf>>::unwrap_or_else::<<build_script_build[a317230b426015b6]::cmd_finder::CommandFinder>::must_have<&str>::{closure#0}>
[INFO] [stderr]     18:     0x5be3f5d0d6ec - <build_script_build[a317230b426015b6]::cmd_finder::CommandFinder>::must_have::<&str>
[INFO] [stderr]     19:     0x5be3f5d127b6 - build_script_build[a317230b426015b6]::main
[INFO] [stderr]     20:     0x5be3f5d14a33 - <fn() as core[fa0eadad68403074]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     21:     0x5be3f5d0e496 - std[31e582c13f4e914f]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     22:     0x5be3f5d0ef19 - std[31e582c13f4e914f]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     23:     0x5be3f5db9e14 - <&dyn core[fa0eadad68403074]::ops::function::Fn<(), Output = i32> + core[fa0eadad68403074]::marker::Sync + core[fa0eadad68403074]::panic::unwind_safe::RefUnwindSafe as core[fa0eadad68403074]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     24:     0x5be3f5db9e14 - std[31e582c13f4e914f]::panicking::catch_unwind::do_call::<&dyn core[fa0eadad68403074]::ops::function::Fn<(), Output = i32> + core[fa0eadad68403074]::marker::Sync + core[fa0eadad68403074]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:581:40
[INFO] [stderr]     25:     0x5be3f5db9e14 - std[31e582c13f4e914f]::panicking::catch_unwind::<i32, &dyn core[fa0eadad68403074]::ops::function::Fn<(), Output = i32> + core[fa0eadad68403074]::marker::Sync + core[fa0eadad68403074]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:544:19
[INFO] [stderr]     26:     0x5be3f5db9e14 - std[31e582c13f4e914f]::panic::catch_unwind::<&dyn core[fa0eadad68403074]::ops::function::Fn<(), Output = i32> + core[fa0eadad68403074]::marker::Sync + core[fa0eadad68403074]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panic.rs:359:14
[INFO] [stderr]     27:     0x5be3f5db9e14 - std[31e582c13f4e914f]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/rt.rs:175:24
[INFO] [stderr]     28:     0x5be3f5db9e14 - std[31e582c13f4e914f]::panicking::catch_unwind::do_call::<std[31e582c13f4e914f]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:581:40
[INFO] [stderr]     29:     0x5be3f5db9e14 - std[31e582c13f4e914f]::panicking::catch_unwind::<isize, std[31e582c13f4e914f]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:544:19
[INFO] [stderr]     30:     0x5be3f5db9e14 - std[31e582c13f4e914f]::panic::catch_unwind::<std[31e582c13f4e914f]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panic.rs:359:14
[INFO] [stderr]     31:     0x5be3f5db9e14 - std[31e582c13f4e914f]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/rt.rs:171:5
[INFO] [stderr]     32:     0x5be3f5d0def1 - std[31e582c13f4e914f]::rt::lang_start::<()>
[INFO] [stderr]     33:     0x5be3f5d14b85 - main
[INFO] [stderr]     34:     0x78083ac431ca - <unknown>
[INFO] [stderr]     35:     0x78083ac4328b - __libc_start_main
[INFO] [stderr]     36:     0x5be3f5d0c8b5 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "488a4ff017756470774440f38c7a763f2cc2cb10bc2f73e3e5e7e110fd14ce28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "488a4ff017756470774440f38c7a763f2cc2cb10bc2f73e3e5e7e110fd14ce28", kill_on_drop: false }`
[INFO] [stdout] 488a4ff017756470774440f38c7a763f2cc2cb10bc2f73e3e5e7e110fd14ce28