[INFO] cloning repository https://github.com/dfangx/boids
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dfangx/boids" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdfangx%2Fboids", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdfangx%2Fboids'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e8856d3dd2498295ae2a64092d1c04804405ae3f
[INFO] checking dfangx/boids against master#af3c6e733a40e671550e0f0f5aeecaa13772ba56 for pr-74989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdfangx%2Fboids" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dfangx/boids on toolchain af3c6e733a40e671550e0f0f5aeecaa13772ba56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dfangx/boids
[INFO] finished tweaking git repo https://github.com/dfangx/boids
[INFO] tweaked toml for git repo https://github.com/dfangx/boids written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/dfangx/boids already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b46402c9c868f420088d070c5e16c778fc6db8788b447b10ddfa15372ea336da
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b46402c9c868f420088d070c5e16c778fc6db8788b447b10ddfa15372ea336da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b46402c9c868f420088d070c5e16c778fc6db8788b447b10ddfa15372ea336da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b46402c9c868f420088d070c5e16c778fc6db8788b447b10ddfa15372ea336da", kill_on_drop: false }`
[INFO] [stdout] b46402c9c868f420088d070c5e16c778fc6db8788b447b10ddfa15372ea336da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1c8e2ff4ce2a40a6e86c6e9652042e97340d198aeb529a1dd879a08c92890b2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a1c8e2ff4ce2a40a6e86c6e9652042e97340d198aeb529a1dd879a08c92890b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling rayon-core v1.6.0
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]     Checking atom v0.3.5
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking same-file v1.0.5
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]     Checking mint v0.5.4
[INFO] [stderr]    Compiling libm v0.1.4
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]     Checking mopa v0.2.2
[INFO] [stderr]     Checking tuple_utils v0.3.0
[INFO] [stderr]     Checking shrev v1.1.1
[INFO] [stderr]     Checking colorful v0.2.1
[INFO] [stderr]     Checking siphasher v0.2.3
[INFO] [stderr]    Compiling edit-distance v2.1.0
[INFO] [stderr]    Compiling tinystr v0.3.2
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking objekt v0.1.2
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]     Checking hound v3.4.0
[INFO] [stderr]     Checking xi-unicode v0.2.0
[INFO] [stderr]     Checking claxon v0.4.2
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking float-ord v0.2.0
[INFO] [stderr]     Checking fluent-syntax v0.9.0
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling x11-dl v2.18.4
[INFO] [stderr]    Compiling x11 v2.18.1
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.7
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking itertools v0.8.1
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]     Checking hibitset v0.5.4
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]     Checking walkdir v2.2.9
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling num-traits v0.2.9
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]    Compiling bincode v1.2.0
[INFO] [stderr]     Checking phf_shared v0.7.24
[INFO] [stderr]    Compiling unic-langid-impl v0.6.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking semver v0.9.0
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling err-derive v0.1.6
[INFO] [stderr]    Compiling lexical-core v0.4.6
[INFO] [stderr]    Compiling lexical v2.2.2
[INFO] [stderr]    Compiling rustc_version_runtime v0.1.5
[INFO] [stderr]     Checking rustc_version v0.2.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling minimp3-sys v0.3.1
[INFO] [stderr]     Checking stb_truetype v0.3.0
[INFO] [stderr]     Checking rustc-hash v1.0.1
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking ogg v0.7.0
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling xcb v0.8.2
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking raw-window-handle v0.3.1
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking slice-deque v0.2.4
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr] error: failed to run custom build command for `rustc_version_runtime v0.1.5`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rustc_version_runtime-ed7b1f1a5b119776/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc_version_runtime-0.1.5/build.rs:27:48
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55bac1e49c90 - std::backtrace_rs::backtrace::libunwind::trace::h452faf99f32e7c93
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]      1:     0x55bac1e49c90 - std::backtrace_rs::backtrace::trace_unsynchronized::he40edc71437667a1
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x55bac1e49c90 - std::sys_common::backtrace::_print_fmt::h6c51d6ade71f46bf
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]      3:     0x55bac1e49c90 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h3cd15d7003dec37a
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]      4:     0x55bac1e6722c - core::fmt::write::h1857a60b204f1b6a
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/core/src/fmt/mod.rs:1080
[INFO] [stderr]      5:     0x55bac1e47937 - std::io::Write::write_fmt::hac61caff894c35ae
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/io/mod.rs:1517
[INFO] [stderr]      6:     0x55bac1e4bda0 - std::sys_common::backtrace::_print::haa2f390fb7957e3e
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]      7:     0x55bac1e4bda0 - std::sys_common::backtrace::print::h48c7cbbad9013bb1
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]      8:     0x55bac1e4bda0 - std::panicking::default_hook::{{closure}}::h8b7ff05a31e71d55
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/panicking.rs:208
[INFO] [stderr]      9:     0x55bac1e4baec - std::panicking::default_hook::h2f00c78800d98e4c
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/panicking.rs:227
[INFO] [stderr]     10:     0x55bac1e4c403 - std::panicking::rust_panic_with_hook::h4eaa635e4694aef3
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/panicking.rs:577
[INFO] [stderr]     11:     0x55bac1e4bfd9 - std::panicking::begin_panic_handler::{{closure}}::hec242f1b136b5ff2
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/panicking.rs:484
[INFO] [stderr]     12:     0x55bac1e4a0fc - std::sys_common::backtrace::__rust_end_short_backtrace::h1f3cc383ee6c0374
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]     13:     0x55bac1e4bf99 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/panicking.rs:483
[INFO] [stderr]     14:     0x55bac1e66551 - core::panicking::panic_fmt::hb15d6f55e8472f62
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/core/src/panicking.rs:85
[INFO] [stderr]     15:     0x55bac1e66373 - core::option::expect_none_failed::he492a18657d97593
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/core/src/option.rs:1221
[INFO] [stderr]     16:     0x55bac1e15d99 - core::result::Result<T,E>::unwrap::h89c3899ad99f3063
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/core/src/result.rs:973
[INFO] [stderr]     17:     0x55bac1e12735 - build_script_build::main::h1908632b746efad9
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc_version_runtime-0.1.5/build.rs:27
[INFO] [stderr]     18:     0x55bac1e1432b - core::ops::function::FnOnce::call_once::hd120cd3a7e75fd9d
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/core/src/ops/function.rs:227
[INFO] [stderr]     19:     0x55bac1e13fde - std::sys_common::backtrace::__rust_begin_short_backtrace::hf3a82416bd80c3fb
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]     20:     0x55bac1e145d1 - std::rt::lang_start::{{closure}}::h4ce1e7b3fc7bcf98
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/rt.rs:66
[INFO] [stderr]     21:     0x55bac1e4c801 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hecc21eb9018cc197
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/core/src/ops/function.rs:259
[INFO] [stderr]     22:     0x55bac1e4c801 - std::panicking::try::do_call::h174ad655d084b5c7
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/panicking.rs:381
[INFO] [stderr]     23:     0x55bac1e4c801 - std::panicking::try::h479e6054ce28de10
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/panicking.rs:345
[INFO] [stderr]     24:     0x55bac1e4c801 - std::panic::catch_unwind::hb558ddea2b3e9c45
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/panic.rs:382
[INFO] [stderr]     25:     0x55bac1e4c801 - std::rt::lang_start_internal::h163149047f0a8b61
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/rt.rs:51
[INFO] [stderr]     26:     0x55bac1e145a7 - std::rt::lang_start::h9bd5ee95593aa6be
[INFO] [stderr]                                  at /rustc/af3c6e733a40e671550e0f0f5aeecaa13772ba56/library/std/src/rt.rs:65
[INFO] [stderr]     27:     0x55bac1e137ca - main
[INFO] [stderr]     28:     0x7f31474590b3 - __libc_start_main
[INFO] [stderr]     29:     0x55bac1e120ae - _start
[INFO] [stderr]     30:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a1c8e2ff4ce2a40a6e86c6e9652042e97340d198aeb529a1dd879a08c92890b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1c8e2ff4ce2a40a6e86c6e9652042e97340d198aeb529a1dd879a08c92890b2", kill_on_drop: false }`
[INFO] [stdout] a1c8e2ff4ce2a40a6e86c6e9652042e97340d198aeb529a1dd879a08c92890b2
