[INFO] cloning repository https://github.com/AlmightyFloppyFish/zircon
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AlmightyFloppyFish/zircon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlmightyFloppyFish%2Fzircon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlmightyFloppyFish%2Fzircon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2db5924b284c8c4792d242883bc88ca7acee8cd2
[INFO] testing AlmightyFloppyFish/zircon against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlmightyFloppyFish%2Fzircon" "/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/AlmightyFloppyFish/zircon
[INFO] finished tweaking git repo https://github.com/AlmightyFloppyFish/zircon
[INFO] tweaked toml for git repo https://github.com/AlmightyFloppyFish/zircon written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AlmightyFloppyFish/zircon on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AlmightyFloppyFish/zircon 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89d81e1e6c5b050fcd6818a9f2ae9865c93810a731c98a84d3fcad29fe281382
[INFO] running `Command { std: "docker" "start" "-a" "89d81e1e6c5b050fcd6818a9f2ae9865c93810a731c98a84d3fcad29fe281382", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89d81e1e6c5b050fcd6818a9f2ae9865c93810a731c98a84d3fcad29fe281382", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89d81e1e6c5b050fcd6818a9f2ae9865c93810a731c98a84d3fcad29fe281382", kill_on_drop: false }`
[INFO] [stdout] 89d81e1e6c5b050fcd6818a9f2ae9865c93810a731c98a84d3fcad29fe281382
[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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7ae015363c63073676a3e3c0bd34eb1e3c09ee30b3e71c841d011cdf18b5854
[INFO] running `Command { std: "docker" "start" "-a" "d7ae015363c63073676a3e3c0bd34eb1e3c09ee30b3e71c841d011cdf18b5854", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.49
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling cc v1.0.29
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling bitflags v1.0.4
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling smallvec v0.6.9
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling nix v0.12.0
[INFO] [stderr]    Compiling owning_ref v0.4.0
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling wayland-scanner v0.21.11
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling rand_os v0.1.2
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_jitter v0.1.3
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling stb_truetype v0.2.6
[INFO] [stderr]    Compiling approx v0.3.1
[INFO] [stderr]    Compiling ordered-float v1.0.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling same-file v1.0.4
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling downcast-rs v1.0.3
[INFO] [stderr]    Compiling walkdir v2.2.7
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling wayland-sys v0.21.11
[INFO] [stderr]    Compiling rusttype v0.7.5
[INFO] [stderr]    Compiling wayland-commons v0.21.11
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling line_drawing v0.7.0
[INFO] [stderr]    Compiling syn v0.15.27
[INFO] [stderr]    Compiling cmake v0.1.35
[INFO] [stderr]    Compiling num-derive v0.2.4
[INFO] [stderr]    Compiling xdg v2.2.0
[INFO] [stderr]    Compiling adler32 v1.0.3
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling andrew v0.1.6
[INFO] [stderr]    Compiling wayland-client v0.21.11
[INFO] [stderr]    Compiling wayland-protocols v0.21.11
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling shaderc v0.3.16
[INFO] [stderr]    Compiling crossbeam-epoch v0.6.1
[INFO] [stderr]    Compiling crossbeam-channel v0.3.8
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling either v1.5.1
[INFO] [stderr]    Compiling vulkano v0.11.1
[INFO] [stderr]    Compiling crossbeam v0.5.0
[INFO] [stderr] error: failed to run custom build command for `shaderc v0.3.16`
[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-9a16f8fbcdaeadc1/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/shaderc-0.3.16/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:     0x5a388cfc7ae2 - std::backtrace_rs::backtrace::libunwind::trace::h73a647620bf1c49d
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5a388cfc7ae2 - std::backtrace_rs::backtrace::trace_unsynchronized::hd4d513ed96cb3cb1
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5a388cfc7ae2 - std::sys::backtrace::_print_fmt::h61bb95f7476aafa5
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5a388cfc7ae2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha2e7e3a01df69042
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5a388cfea2c3 - core::fmt::rt::Argument::fmt::hf14163372f0f9a76
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x5a388cfea2c3 - core::fmt::write::h7cb8f63788cd01d2
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/mod.rs:1465:25
[INFO] [stderr]      6:     0x5a388cfc4743 - std::io::default_write_fmt::h92ac9345fd53cc14
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5a388cfc4743 - std::io::Write::write_fmt::h5ebaf381f8338068
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x5a388cfc7932 - std::sys::backtrace::BacktraceLock::print::h3ec4d7883eb25e61
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x5a388cfc8d16 - std::panicking::default_hook::{{closure}}::h29548987efd832cb
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:300:27
[INFO] [stderr]     10:     0x5a388cfc8b19 - std::panicking::default_hook::ha25170a15c643514
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:327:9
[INFO] [stderr]     11:     0x5a388cfc96e2 - std::panicking::rust_panic_with_hook::h0d81afcd829aa24b
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:833:13
[INFO] [stderr]     12:     0x5a388cfc947a - std::panicking::begin_panic_handler::{{closure}}::hc84a33f1202346cf
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:706:13
[INFO] [stderr]     13:     0x5a388cfc7fd9 - std::sys::backtrace::__rust_end_short_backtrace::h373067a14f6c59aa
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:168:18
[INFO] [stderr]     14:     0x5a388cfc910d - __rustc[beb0385846a06d21]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:697:5
[INFO] [stderr]     15:     0x5a388cfe9230 - core::panicking::panic_fmt::ha33fa2ae772efba9
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:75:14
[INFO] [stderr]     16:     0x5a388cf842a2 - build_script_build::cmd_finder::CommandFinder::must_have::h279251df2d74f0bf
[INFO] [stderr]     17:     0x5a388cf82700 - build_script_build::main::h26842a4c076c1245
[INFO] [stderr]     18:     0x5a388cf81e43 - std::sys::backtrace::__rust_begin_short_backtrace::h34fe4667640f933f
[INFO] [stderr]     19:     0x5a388cf81e39 - std::rt::lang_start::{{closure}}::hef8160b0cefc3333
[INFO] [stderr]     20:     0x5a388cfc06b0 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hc3929e8466919df6
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:284:21
[INFO] [stderr]     21:     0x5a388cfc06b0 - std::panicking::catch_unwind::do_call::hed30a66745299fca
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stderr]     22:     0x5a388cfc06b0 - std::panicking::catch_unwind::hdfb0bc9563518507
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stderr]     23:     0x5a388cfc06b0 - std::panic::catch_unwind::hd0a1d748acfba573
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stderr]     24:     0x5a388cfc06b0 - std::rt::lang_start_internal::{{closure}}::h0c1845f1b3064b93
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/rt.rs:175:24
[INFO] [stderr]     25:     0x5a388cfc06b0 - std::panicking::catch_unwind::do_call::h1114c52e864472d2
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stderr]     26:     0x5a388cfc06b0 - std::panicking::catch_unwind::h91938c6665615bc7
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stderr]     27:     0x5a388cfc06b0 - std::panic::catch_unwind::h0c65d4211626564a
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stderr]     28:     0x5a388cfc06b0 - std::rt::lang_start_internal::hc41e58da8618ff02
[INFO] [stderr]                                  at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/rt.rs:171:5
[INFO] [stderr]     29:     0x5a388cf830d5 - main
[INFO] [stderr]     30:     0x7bc5d20ec1ca - <unknown>
[INFO] [stderr]     31:     0x7bc5d20ec28b - __libc_start_main
[INFO] [stderr]     32:     0x5a388cf80ab5 - _start
[INFO] [stderr]     33:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d7ae015363c63073676a3e3c0bd34eb1e3c09ee30b3e71c841d011cdf18b5854", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7ae015363c63073676a3e3c0bd34eb1e3c09ee30b3e71c841d011cdf18b5854", kill_on_drop: false }`
[INFO] [stdout] d7ae015363c63073676a3e3c0bd34eb1e3c09ee30b3e71c841d011cdf18b5854
