[INFO] cloning repository https://github.com/lesguillemets/nnlz
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lesguillemets/nnlz" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flesguillemets%2Fnnlz", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flesguillemets%2Fnnlz'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] feba0967234568160585e3e6d2ee858f0aa3918c
[INFO] checking lesguillemets/nnlz/feba0967234568160585e3e6d2ee858f0aa3918c against master#1b8f2e46e14b08208a53585570edd9206374aae8 for pr-155418
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flesguillemets%2Fnnlz" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lesguillemets/nnlz
[INFO] finished tweaking git repo https://github.com/lesguillemets/nnlz
[INFO] tweaked toml for git repo https://github.com/lesguillemets/nnlz written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lesguillemets/nnlz on toolchain 1b8f2e46e14b08208a53585570edd9206374aae8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1b8f2e46e14b08208a53585570edd9206374aae8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lesguillemets/nnlz 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" "+1b8f2e46e14b08208a53585570edd9206374aae8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+1b8f2e46e14b08208a53585570edd9206374aae8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e052fa6c8d9628cd1d5cbdb196289fa7db6b11dba7ce8335679e433fe5227c7a
[INFO] running `Command { std: "docker" "start" "-a" "e052fa6c8d9628cd1d5cbdb196289fa7db6b11dba7ce8335679e433fe5227c7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e052fa6c8d9628cd1d5cbdb196289fa7db6b11dba7ce8335679e433fe5227c7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e052fa6c8d9628cd1d5cbdb196289fa7db6b11dba7ce8335679e433fe5227c7a", kill_on_drop: false }`
[INFO] [stdout] e052fa6c8d9628cd1d5cbdb196289fa7db6b11dba7ce8335679e433fe5227c7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+1b8f2e46e14b08208a53585570edd9206374aae8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c3151a33b54e654bb2cd84941d8dc073f8c491b5da823a8d4551027f590131d
[INFO] running `Command { std: "docker" "start" "-a" "3c3151a33b54e654bb2cd84941d8dc073f8c491b5da823a8d4551027f590131d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]     Checking downcast-rs v1.1.1
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking same-file v1.0.5
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking walkdir v2.2.9
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking rustc-hash v1.0.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling rayon-core v1.6.1
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking crossbeam-queue v0.2.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling wayland-scanner v0.23.6
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]     Checking euclid v0.20.7
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking rusttype v0.8.2
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]    Compiling shaderc-sys v0.6.1
[INFO] [stderr]     Checking wayland-sys v0.23.6
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking lyon_geom v0.14.1
[INFO] [stderr]     Checking rayon v1.2.1
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking petgraph v0.4.13
[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-2843edb2d7b05875/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' (1604) 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:     0x5cb83da71bea - std[70c7c8c01aa00962]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5cb83da71bea - std[70c7c8c01aa00962]::backtrace_rs::backtrace::trace_unsynchronized::<std[70c7c8c01aa00962]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5cb83da71bea - std[70c7c8c01aa00962]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x5cb83da71bea - <<std[70c7c8c01aa00962]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[61494631591798ae]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x5cb83da85a3a - <core[61494631591798ae]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x5cb83da85a3a - core[61494631591798ae]::fmt::write
[INFO] [stderr]      6:     0x5cb83da77a42 - std[70c7c8c01aa00962]::io::default_write_fmt::<std[70c7c8c01aa00962]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/std/src/io/mod.rs:621:11
[INFO] [stderr]      7:     0x5cb83da77a42 - <std[70c7c8c01aa00962]::sys::stdio::unix::Stderr as std[70c7c8c01aa00962]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/std/src/io/mod.rs:1976:13
[INFO] [stderr]      8:     0x5cb83da53bcf - <std[70c7c8c01aa00962]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x5cb83da53bcf - std[70c7c8c01aa00962]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x5cb83da6ca01 - std[70c7c8c01aa00962]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x5cb83da6cbbb - std[70c7c8c01aa00962]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x5cb83da53c88 - std[70c7c8c01aa00962]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x5cb83da4b579 - std[70c7c8c01aa00962]::sys::backtrace::__rust_end_short_backtrace::<std[70c7c8c01aa00962]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x5cb83da545ed - __rustc[79ffd523cf1b9ad]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x5cb83da8612c - core[61494631591798ae]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5cb83d9fc536 - <build_script_build[c5ad7ef18e205a6b]::cmd_finder::CommandFinder>::must_have::<&str>::{closure#0}
[INFO] [stderr]     17:     0x5cb83d9fabd9 - <core[61494631591798ae]::option::Option<std[70c7c8c01aa00962]::path::PathBuf>>::unwrap_or_else::<<build_script_build[c5ad7ef18e205a6b]::cmd_finder::CommandFinder>::must_have<&str>::{closure#0}>
[INFO] [stderr]     18:     0x5cb83d9faf3c - <build_script_build[c5ad7ef18e205a6b]::cmd_finder::CommandFinder>::must_have::<&str>
[INFO] [stderr]     19:     0x5cb83d9ff373 - build_script_build[c5ad7ef18e205a6b]::main
[INFO] [stderr]     20:     0x5cb83da00d73 - <fn() as core[61494631591798ae]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     21:     0x5cb83d9fba56 - std[70c7c8c01aa00962]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     22:     0x5cb83d9fc549 - std[70c7c8c01aa00962]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     23:     0x5cb83da6baf4 - <&dyn core[61494631591798ae]::ops::function::Fn<(), Output = i32> + core[61494631591798ae]::panic::unwind_safe::RefUnwindSafe + core[61494631591798ae]::marker::Sync as core[61494631591798ae]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     24:     0x5cb83da6baf4 - std[70c7c8c01aa00962]::panicking::catch_unwind::do_call::<&dyn core[61494631591798ae]::ops::function::Fn<(), Output = i32> + core[61494631591798ae]::panic::unwind_safe::RefUnwindSafe + core[61494631591798ae]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/std/src/panicking.rs:581:40
[INFO] [stderr]     25:     0x5cb83da6baf4 - std[70c7c8c01aa00962]::panicking::catch_unwind::<i32, &dyn core[61494631591798ae]::ops::function::Fn<(), Output = i32> + core[61494631591798ae]::panic::unwind_safe::RefUnwindSafe + core[61494631591798ae]::marker::Sync>
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/std/src/panicking.rs:544:19
[INFO] [stderr]     26:     0x5cb83da6baf4 - std[70c7c8c01aa00962]::panic::catch_unwind::<&dyn core[61494631591798ae]::ops::function::Fn<(), Output = i32> + core[61494631591798ae]::panic::unwind_safe::RefUnwindSafe + core[61494631591798ae]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/std/src/panic.rs:359:14
[INFO] [stderr]     27:     0x5cb83da6baf4 - std[70c7c8c01aa00962]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/std/src/rt.rs:175:24
[INFO] [stderr]     28:     0x5cb83da6baf4 - std[70c7c8c01aa00962]::panicking::catch_unwind::do_call::<std[70c7c8c01aa00962]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/std/src/panicking.rs:581:40
[INFO] [stderr]     29:     0x5cb83da6baf4 - std[70c7c8c01aa00962]::panicking::catch_unwind::<isize, std[70c7c8c01aa00962]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/std/src/panicking.rs:544:19
[INFO] [stderr]     30:     0x5cb83da6baf4 - std[70c7c8c01aa00962]::panic::catch_unwind::<std[70c7c8c01aa00962]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/std/src/panic.rs:359:14
[INFO] [stderr]     31:     0x5cb83da6baf4 - std[70c7c8c01aa00962]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/1b8f2e46e14b08208a53585570edd9206374aae8/library/std/src/rt.rs:171:5
[INFO] [stderr]     32:     0x5cb83d9fba41 - std[70c7c8c01aa00962]::rt::lang_start::<()>
[INFO] [stderr]     33:     0x5cb83da00ef5 - main
[INFO] [stderr]     34:     0x7ed758a201ca - <unknown>
[INFO] [stderr]     35:     0x7ed758a2028b - __libc_start_main
[INFO] [stderr]     36:     0x5cb83d9fa2c5 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3c3151a33b54e654bb2cd84941d8dc073f8c491b5da823a8d4551027f590131d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c3151a33b54e654bb2cd84941d8dc073f8c491b5da823a8d4551027f590131d", kill_on_drop: false }`
[INFO] [stdout] 3c3151a33b54e654bb2cd84941d8dc073f8c491b5da823a8d4551027f590131d