[INFO] cloning repository https://github.com/maeln/shdrr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maeln/shdrr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaeln%2Fshdrr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaeln%2Fshdrr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 346ec778f365bf63713821ad01d8ab2c106348c7
[INFO] testing maeln/shdrr against 1.99.0-beta.1+cargoflags=--release for beta-release-1.99-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaeln%2Fshdrr" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/maeln/shdrr
[INFO] finished tweaking git repo https://github.com/maeln/shdrr
[INFO] tweaked toml for git repo https://github.com/maeln/shdrr written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/maeln/shdrr on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/maeln/shdrr 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" "+1.99.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 96465637e87f881ac9d173630d1afeb7d2d4d4193c132b7328165e84f6b244c3
[INFO] running `Command { std: "docker" "start" "96465637e87f881ac9d173630d1afeb7d2d4d4193c132b7328165e84f6b244c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96465637e87f881ac9d173630d1afeb7d2d4d4193c132b7328165e84f6b244c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "96465637e87f881ac9d173630d1afeb7d2d4d4193c132b7328165e84f6b244c3" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96465637e87f881ac9d173630d1afeb7d2d4d4193c132b7328165e84f6b244c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "96465637e87f881ac9d173630d1afeb7d2d4d4193c132b7328165e84f6b244c3" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling same-file v1.0.4
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling walkdir v2.2.8
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling cmake v0.1.40
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling inotify-sys v0.1.3
[INFO] [stderr]    Compiling filetime v0.2.5
[INFO] [stderr]    Compiling atty v0.2.12
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling inotify v0.6.1
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling shaderc-sys v0.5.1
[INFO] [stderr] warning: shaderc-sys@0.5.1: Checking for system installed libraries.  Use --features = build-from-source to disable this behavior
[INFO] [stderr] warning: shaderc-sys@0.5.1: Pre-built library not found.  Falling back to from-source build
[INFO] [stderr] error: failed to run custom build command for `shaderc-sys v0.5.1`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_RELEASE_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/release/build/shaderc-sys-6941be5346a38240/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=Pre-built library not found.  Falling back to from-source build
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (333) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/shaderc-sys-0.5.1/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:     0x62a14ddff341 - <<std[104cf6e2632825ea]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[7c831bd917ebf35f]::fmt::Display>::fmt
[INFO] [stderr]      1:     0x62a14de133aa - core[7c831bd917ebf35f]::fmt::write
[INFO] [stderr]      2:     0x62a14de04e6c - <std[104cf6e2632825ea]::sys::stdio::unix::Stderr as core[7c831bd917ebf35f]::io::write::Write>::write_fmt
[INFO] [stderr]      3:     0x62a14dddeec6 - std[104cf6e2632825ea]::panicking::default_hook::{closure#0}
[INFO] [stderr]      4:     0x62a14ddfa221 - std[104cf6e2632825ea]::panicking::default_hook
[INFO] [stderr]      5:     0x62a14ddfa3db - std[104cf6e2632825ea]::panicking::panic_with_hook
[INFO] [stderr]      6:     0x62a14dddef72 - std[104cf6e2632825ea]::panicking::panic_handler::{closure#0}
[INFO] [stderr]      7:     0x62a14ddd7829 - std[104cf6e2632825ea]::sys::backtrace::__rust_end_short_backtrace::<std[104cf6e2632825ea]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]      8:     0x62a14dddf78d - __rustc[b0d56fa5b193ad05]::rust_begin_unwind
[INFO] [stderr]      9:     0x62a14de13adc - core[7c831bd917ebf35f]::panicking::panic_fmt
[INFO] [stderr]     10:     0x62a14dd94576 - <build_script_build[99e45007eec8255a]::cmd_finder::CommandFinder>::must_have::<&str>::{closure#0}
[INFO] [stderr]     11:     0x62a14dd91d90 - <core[7c831bd917ebf35f]::option::Option<std[104cf6e2632825ea]::path::PathBuf>>::unwrap_or_else::<<build_script_build[99e45007eec8255a]::cmd_finder::CommandFinder>::must_have<&str>::{closure#0}>
[INFO] [stderr]     12:     0x62a14dd92090 - <build_script_build[99e45007eec8255a]::cmd_finder::CommandFinder>::must_have::<&str>
[INFO] [stderr]     13:     0x62a14dd96eeb - build_script_build[99e45007eec8255a]::main
[INFO] [stderr]     14:     0x62a14dd99283 - <fn() as core[7c831bd917ebf35f]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     15:     0x62a14dd93b16 - std[104cf6e2632825ea]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     16:     0x62a14dd94709 - std[104cf6e2632825ea]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     17:     0x62a14ddf95e9 - std[104cf6e2632825ea]::rt::lang_start_internal
[INFO] [stderr]     18:     0x62a14dd93731 - std[104cf6e2632825ea]::rt::lang_start::<()>
[INFO] [stderr]     19:     0x62a14dd99375 - main
[INFO] [stderr]     20:     0x705cb6150601 - <unknown>
[INFO] [stderr]     21:     0x705cb6150718 - __libc_start_main
[INFO] [stderr]     22:     0x62a14dd91455 - _start
[INFO] [stderr]     23:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "96465637e87f881ac9d173630d1afeb7d2d4d4193c132b7328165e84f6b244c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96465637e87f881ac9d173630d1afeb7d2d4d4193c132b7328165e84f6b244c3", kill_on_drop: false }`
[INFO] [stdout] 96465637e87f881ac9d173630d1afeb7d2d4d4193c132b7328165e84f6b244c3
