[INFO] cloning repository https://github.com/chantrybjss/nannou-squares
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chantrybjss/nannou-squares" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchantrybjss%2Fnannou-squares", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchantrybjss%2Fnannou-squares'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce1a13fabcf23e93f30149a38a30a52c4e17b0ab
[INFO] checking chantrybjss/nannou-squares against try#fa4dd1f19bfeb3fd235dc7f1406c42404436bef5 for pr-145108-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchantrybjss%2Fnannou-squares" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/chantrybjss/nannou-squares
[INFO] finished tweaking git repo https://github.com/chantrybjss/nannou-squares
[INFO] tweaked toml for git repo https://github.com/chantrybjss/nannou-squares written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/chantrybjss/nannou-squares on toolchain fa4dd1f19bfeb3fd235dc7f1406c42404436bef5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fa4dd1f19bfeb3fd235dc7f1406c42404436bef5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/chantrybjss/nannou-squares 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" "+fa4dd1f19bfeb3fd235dc7f1406c42404436bef5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking chantrybjss/nannou-squares against try#fa4dd1f19bfeb3fd235dc7f1406c42404436bef5 for pr-145108-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchantrybjss%2Fnannou-squares" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/chantrybjss/nannou-squares
[INFO] finished tweaking git repo https://github.com/chantrybjss/nannou-squares
[INFO] tweaked toml for git repo https://github.com/chantrybjss/nannou-squares written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/chantrybjss/nannou-squares on toolchain fa4dd1f19bfeb3fd235dc7f1406c42404436bef5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fa4dd1f19bfeb3fd235dc7f1406c42404436bef5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/chantrybjss/nannou-squares 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" "+fa4dd1f19bfeb3fd235dc7f1406c42404436bef5" "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 wayland-scanner v0.21.12
[INFO] [stderr]   Downloaded wayland-commons v0.21.12
[INFO] [stderr]   Downloaded wayland-sys v0.21.12
[INFO] [stderr]   Downloaded coreaudio-sys v0.2.2
[INFO] [stderr]   Downloaded libloading v0.4.3
[INFO] [stderr]   Downloaded conrod_winit v0.65.0
[INFO] [stderr]   Downloaded cmake v0.1.40
[INFO] [stderr]   Downloaded which v1.0.5
[INFO] [stderr]   Downloaded wayland-client v0.21.12
[INFO] [stderr]   Downloaded conrod_derive v0.65.0
[INFO] [stderr]   Downloaded num v0.2.0
[INFO] [stderr]   Downloaded clang-sys v0.21.2
[INFO] [stderr]   Downloaded num-rational v0.2.1
[INFO] [stderr]   Downloaded pennereq v0.3.0
[INFO] [stderr]   Downloaded half v1.3.0
[INFO] [stderr]   Downloaded num-complex v0.2.1
[INFO] [stderr]   Downloaded daggy v0.5.0
[INFO] [stderr]   Downloaded backtrace v0.3.30
[INFO] [stderr]   Downloaded schannel v0.1.15
[INFO] [stderr]   Downloaded curl v0.4.22
[INFO] [stderr]   Downloaded noise v0.5.1
[INFO] [stderr]   Downloaded wayland-protocols v0.21.12
[INFO] [stderr]   Downloaded rayon v1.0.3
[INFO] [stderr]   Downloaded bindgen v0.32.3
[INFO] [stderr]   Downloaded syn v0.15.35
[INFO] [stderr]   Downloaded nix v0.13.0
[INFO] [stderr]   Downloaded conrod_core v0.65.0
[INFO] [stderr]   Downloaded palette v0.2.1
[INFO] [stderr]   Downloaded smithay-client-toolkit v0.4.5
[INFO] [stderr]   Downloaded daggy v0.6.0
[INFO] [stderr]   Downloaded openssl-sys v0.9.47
[INFO] [stderr]   Downloaded metal v0.13.1
[INFO] [stderr]   Downloaded piston-float v0.3.0
[INFO] [stderr]   Downloaded argon2rs v0.2.5
[INFO] [stderr]   Downloaded vulkano v0.12.0
[INFO] [stderr]   Downloaded env_logger v0.4.3
[INFO] [stderr]   Downloaded objc_exception v0.1.1
[INFO] [stderr]   Downloaded rusttype v0.7.6
[INFO] [stderr]   Downloaded sample v0.10.0
[INFO] [stderr]   Downloaded piston-viewport v0.5.0
[INFO] [stderr]   Downloaded pistoncore-input v0.24.0
[INFO] [stderr]   Downloaded constant_time_eq v0.1.3
[INFO] [stderr]   Downloaded env_perm v0.1.1
[INFO] [stderr]   Downloaded rosc v0.1.6
[INFO] [stderr]   Downloaded vulkano-shaders v0.12.0
[INFO] [stderr]   Downloaded vk-sys v0.4.0
[INFO] [stderr]   Downloaded vulkano-win v0.12.0
[INFO] [stderr]   Downloaded rustc-hash v1.0.1
[INFO] [stderr]   Downloaded instant v0.1.1
[INFO] [stderr]   Downloaded conrod_vulkano v0.65.0
[INFO] [stderr]   Downloaded cexpr v0.2.3
[INFO] [stderr]   Downloaded redox_users v0.3.0
[INFO] [stderr]   Downloaded moltenvk_deps v0.1.6
[INFO] [stderr]   Downloaded shaderc v0.5.0
[INFO] [stderr]   Downloaded crossbeam v0.7.1
[INFO] [stderr]   Downloaded nannou v0.9.0
[INFO] [stderr]   Downloaded curl-sys v0.4.18
[INFO] [stderr]   Downloaded pbr v1.0.1
[INFO] [stderr]   Downloaded shaderc-sys v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+fa4dd1f19bfeb3fd235dc7f1406c42404436bef5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3ad06972d64942e527bf6b0ab530b2d27b51875b10a20b9b0a4caecc0f9cf627
[INFO] running `Command { std: "docker" "start" "-a" "3ad06972d64942e527bf6b0ab530b2d27b51875b10a20b9b0a4caecc0f9cf627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3ad06972d64942e527bf6b0ab530b2d27b51875b10a20b9b0a4caecc0f9cf627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ad06972d64942e527bf6b0ab530b2d27b51875b10a20b9b0a4caecc0f9cf627", kill_on_drop: false }`
[INFO] [stdout] 3ad06972d64942e527bf6b0ab530b2d27b51875b10a20b9b0a4caecc0f9cf627
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+fa4dd1f19bfeb3fd235dc7f1406c42404436bef5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b2a4a01b7e3d3a84faf5f3bb410cd182a7f5a96ac065e1ead322f11e36bfcb1
[INFO] running `Command { std: "docker" "start" "-a" "8b2a4a01b7e3d3a84faf5f3bb410cd182a7f5a96ac065e1ead322f11e36bfcb1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling syn v0.15.35
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]     Checking rustc-hash v1.0.1
[INFO] [stderr]     Checking stb_truetype v0.2.6
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]     Checking deflate v0.7.19
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling cmake v0.1.40
[INFO] [stdout] error[E0310]: the parameter type `T` may not live long enough
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rustc-serialize-0.3.24/src/serialize.rs:1155:5
[INFO] [stdout]      |
[INFO] [stdout] 1155 |     fn decode<D: Decoder>(d: &mut D) -> Result<Cow<'static, T>, D::Error> {
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |     |
[INFO] [stdout]      |     the parameter type `T` must be valid for the static lifetime...
[INFO] [stdout]      |     ...so that the type `T` will meet its required lifetime bounds...
[INFO] [stdout]      |
[INFO] [stdout] note: ...that is required by this bound
[INFO] [stdout]     --> /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/alloc/src/borrow.rs:169:29
[INFO] [stdout] help: consider adding an explicit lifetime bound
[INFO] [stdout]      |
[INFO] [stdout] 1151 | impl<'a, T: ?Sized + 'static> Decodable for Cow<'a, T>
[INFO] [stdout]      |                    +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking downcast-rs v1.0.4
[INFO] [stderr]     Checking walkdir v2.2.8
[INFO] [stderr]    Compiling wayland-scanner v0.21.12
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]    Compiling libloading v0.5.1
[INFO] [stderr]    Compiling shaderc-sys v0.5.0
[INFO] [stderr]     Checking rusttype v0.7.6
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling vulkano v0.12.0
[INFO] [stderr]     Checking piston-float v0.3.0
[INFO] [stderr]     Checking crossbeam v0.7.1
[INFO] [stderr]     Checking piston-viewport v0.5.0
[INFO] [stderr] warning: shaderc-sys@0.5.0: Checking for system installed libraries.  Use --features = build-from-source to disable this behavior
[INFO] [stderr] warning: shaderc-sys@0.5.0: Pre-built library not found.  Falling back to from-source build
[INFO] [stderr] error: failed to run custom build command for `shaderc-sys v0.5.0`
[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-804e9aeedb400017/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' (906) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/shaderc-sys-0.5.0/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:     0x64d201686d4a - std[f9d773b402613c4d]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x64d201686d4a - std[f9d773b402613c4d]::backtrace_rs::backtrace::trace_unsynchronized::<std[f9d773b402613c4d]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x64d201686d4a - std[f9d773b402613c4d]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x64d201686d4a - <<std[f9d773b402613c4d]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[5687cb28cffdf578]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x64d20169abaa - <core[5687cb28cffdf578]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x64d20169abaa - core[5687cb28cffdf578]::fmt::write
[INFO] [stderr]      6:     0x64d20168cbb2 - std[f9d773b402613c4d]::io::default_write_fmt::<std[f9d773b402613c4d]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x64d20168cbb2 - <std[f9d773b402613c4d]::sys::stdio::unix::Stderr as std[f9d773b402613c4d]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]      8:     0x64d201668cff - <std[f9d773b402613c4d]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x64d201668cff - std[f9d773b402613c4d]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x64d201681bb1 - std[f9d773b402613c4d]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x64d201681d6b - std[f9d773b402613c4d]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x64d201668db8 - std[f9d773b402613c4d]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x64d2016606c9 - std[f9d773b402613c4d]::sys::backtrace::__rust_end_short_backtrace::<std[f9d773b402613c4d]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x64d20166971d - __rustc[b170295fd561a9b3]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x64d20169b3bc - core[5687cb28cffdf578]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x64d201613a06 - <build_script_build[dfbd0f941b90d3ea]::cmd_finder::CommandFinder>::must_have::<&str>::{closure#0}
[INFO] [stderr]     17:     0x64d201612139 - <core[5687cb28cffdf578]::option::Option<std[f9d773b402613c4d]::path::PathBuf>>::unwrap_or_else::<<build_script_build[dfbd0f941b90d3ea]::cmd_finder::CommandFinder>::must_have<&str>::{closure#0}>
[INFO] [stderr]     18:     0x64d20161249c - <build_script_build[dfbd0f941b90d3ea]::cmd_finder::CommandFinder>::must_have::<&str>
[INFO] [stderr]     19:     0x64d201615eeb - build_script_build[dfbd0f941b90d3ea]::main
[INFO] [stderr]     20:     0x64d201617b73 - <fn() as core[5687cb28cffdf578]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     21:     0x64d201612f26 - std[f9d773b402613c4d]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     22:     0x64d201613a29 - std[f9d773b402613c4d]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     23:     0x64d201680ca6 - <&dyn core[5687cb28cffdf578]::ops::function::Fn<(), Output = i32> + core[5687cb28cffdf578]::marker::Sync + core[5687cb28cffdf578]::panic::unwind_safe::RefUnwindSafe as core[5687cb28cffdf578]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     24:     0x64d201680ca6 - std[f9d773b402613c4d]::panicking::catch_unwind::do_call::<&dyn core[5687cb28cffdf578]::ops::function::Fn<(), Output = i32> + core[5687cb28cffdf578]::marker::Sync + core[5687cb28cffdf578]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/std/src/panicking.rs:581:40
[INFO] [stderr]     25:     0x64d201680ca6 - std[f9d773b402613c4d]::panicking::catch_unwind::<i32, &dyn core[5687cb28cffdf578]::ops::function::Fn<(), Output = i32> + core[5687cb28cffdf578]::marker::Sync + core[5687cb28cffdf578]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/std/src/panicking.rs:544:19
[INFO] [stderr]     26:     0x64d201680ca6 - std[f9d773b402613c4d]::panic::catch_unwind::<&dyn core[5687cb28cffdf578]::ops::function::Fn<(), Output = i32> + core[5687cb28cffdf578]::marker::Sync + core[5687cb28cffdf578]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/std/src/panic.rs:359:14
[INFO] [stderr]     27:     0x64d201680ca6 - std[f9d773b402613c4d]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/std/src/rt.rs:175:24
[INFO] [stderr]     28:     0x64d201680ca6 - std[f9d773b402613c4d]::panicking::catch_unwind::do_call::<std[f9d773b402613c4d]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/std/src/panicking.rs:581:40
[INFO] [stderr]     29:     0x64d201680ca6 - std[f9d773b402613c4d]::panicking::catch_unwind::<isize, std[f9d773b402613c4d]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/std/src/panicking.rs:544:19
[INFO] [stderr]     30:     0x64d201680ca6 - std[f9d773b402613c4d]::panic::catch_unwind::<std[f9d773b402613c4d]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/std/src/panic.rs:359:14
[INFO] [stderr]     31:     0x64d201680ca6 - std[f9d773b402613c4d]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/fa4dd1f19bfeb3fd235dc7f1406c42404436bef5/library/std/src/rt.rs:171:5
[INFO] [stderr]     32:     0x64d201612f11 - std[f9d773b402613c4d]::rt::lang_start::<()>
[INFO] [stderr]     33:     0x64d201617cf5 - main
[INFO] [stderr]     34:     0x7797bb0b61ca - <unknown>
[INFO] [stderr]     35:     0x7797bb0b628b - __libc_start_main
[INFO] [stderr]     36:     0x64d201611825 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0310`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-serialize` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "8b2a4a01b7e3d3a84faf5f3bb410cd182a7f5a96ac065e1ead322f11e36bfcb1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b2a4a01b7e3d3a84faf5f3bb410cd182a7f5a96ac065e1ead322f11e36bfcb1", kill_on_drop: false }`
[INFO] [stdout] 8b2a4a01b7e3d3a84faf5f3bb410cd182a7f5a96ac065e1ead322f11e36bfcb1
