[INFO] cloning repository https://github.com/Duddino/monte-carlo-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Duddino/monte-carlo-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDuddino%2Fmonte-carlo-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDuddino%2Fmonte-carlo-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ca3f61478fe12d73024cd752dbf4cd87cd412765
[INFO] checking Duddino/monte-carlo-rust against try#72f88fc4e9458f89516a0b8b0868f3718aec5b47 for pr-74989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDuddino%2Fmonte-carlo-rust" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Duddino/monte-carlo-rust on toolchain 72f88fc4e9458f89516a0b8b0868f3718aec5b47
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Duddino/monte-carlo-rust
[INFO] finished tweaking git repo https://github.com/Duddino/monte-carlo-rust
[INFO] tweaked toml for git repo https://github.com/Duddino/monte-carlo-rust written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Duddino/monte-carlo-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror v1.0.16
[INFO] [stderr]   Downloaded thiserror-impl v1.0.16
[INFO] [stderr]   Downloaded quote v1.0.4
[INFO] [stderr]   Downloaded ctor v0.1.14
[INFO] [stderr]   Downloaded ahash v0.3.4
[INFO] [stderr]   Downloaded euclid v0.20.11
[INFO] [stderr]   Downloaded serde_bytes v0.11.4
[INFO] [stderr]   Downloaded syn v1.0.19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c901d5b5594439061a8101f52b21e10390624865d38914e7eb9bdd5a5aca127
[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" "4c901d5b5594439061a8101f52b21e10390624865d38914e7eb9bdd5a5aca127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c901d5b5594439061a8101f52b21e10390624865d38914e7eb9bdd5a5aca127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c901d5b5594439061a8101f52b21e10390624865d38914e7eb9bdd5a5aca127", kill_on_drop: false }`
[INFO] [stdout] 4c901d5b5594439061a8101f52b21e10390624865d38914e7eb9bdd5a5aca127
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7cc3837d61b021d76a987f5b264666e1b524313a2b80734d6c2810a3ff6843ed
[INFO] running `Command { std: "docker" "start" "-a" "7cc3837d61b021d76a987f5b264666e1b524313a2b80734d6c2810a3ff6843ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]    Compiling version_check v0.9.1
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[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]     Checking mint v0.5.5
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[INFO] [stderr]     Checking colorful v0.2.1
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling edit-distance v2.1.0
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]     Checking fnv v1.0.6
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[INFO] [stderr]    Compiling inventory v0.1.6
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling tinystr v0.3.2
[INFO] [stderr]     Checking approx v0.1.1
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[INFO] [stderr]     Checking stable_deref_trait v1.1.1
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[INFO] [stderr]     Checking xi-unicode v0.2.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking semver-parser v0.7.0
[INFO] [stderr]     Checking float-ord v0.2.0
[INFO] [stderr]     Checking fluent-syntax v0.9.3
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-bigint v0.2.6
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[INFO] [stderr]    Compiling num-complex v0.2.4
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[INFO] [stderr]     Checking inflate v0.4.5
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[INFO] [stderr]     Checking gif v0.10.3
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[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]     Checking unic-langid-impl 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 proc-macro2 v1.0.12
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.9
[INFO] [stderr]     Checking byteorder v1.3.4
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking semver v0.9.0
[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]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling minimp3-sys v0.3.2
[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]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking rustc_version v0.2.3
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking ogg v0.7.0
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking raw-window-handle v0.1.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking slice-deque v0.3.0
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling xcb v0.8.2
[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:     0x55d35a716ce0 - std::backtrace_rs::backtrace::libunwind::trace::h452faf99f32e7c93
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]      1:     0x55d35a716ce0 - std::backtrace_rs::backtrace::trace_unsynchronized::he40edc71437667a1
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x55d35a716ce0 - std::sys_common::backtrace::_print_fmt::h6c51d6ade71f46bf
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]      3:     0x55d35a716ce0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h3cd15d7003dec37a
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]      4:     0x55d35a73427c - core::fmt::write::h1857a60b204f1b6a
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/core/src/fmt/mod.rs:1080
[INFO] [stderr]      5:     0x55d35a714987 - std::io::Write::write_fmt::hac61caff894c35ae
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/io/mod.rs:1517
[INFO] [stderr]      6:     0x55d35a718df0 - std::sys_common::backtrace::_print::haa2f390fb7957e3e
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]      7:     0x55d35a718df0 - std::sys_common::backtrace::print::h48c7cbbad9013bb1
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]      8:     0x55d35a718df0 - std::panicking::default_hook::{{closure}}::h8b7ff05a31e71d55
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/panicking.rs:208
[INFO] [stderr]      9:     0x55d35a718b3c - std::panicking::default_hook::h2f00c78800d98e4c
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/panicking.rs:227
[INFO] [stderr]     10:     0x55d35a719453 - std::panicking::rust_panic_with_hook::h4eaa635e4694aef3
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/panicking.rs:577
[INFO] [stderr]     11:     0x55d35a719029 - std::panicking::begin_panic_handler::{{closure}}::hec242f1b136b5ff2
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/panicking.rs:484
[INFO] [stderr]     12:     0x55d35a71714c - std::sys_common::backtrace::__rust_end_short_backtrace::h1f3cc383ee6c0374
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]     13:     0x55d35a718fe9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/panicking.rs:483
[INFO] [stderr]     14:     0x55d35a7335a1 - core::panicking::panic_fmt::hb15d6f55e8472f62
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/core/src/panicking.rs:85
[INFO] [stderr]     15:     0x55d35a7333c3 - core::option::expect_none_failed::he492a18657d97593
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/core/src/option.rs:1221
[INFO] [stderr]     16:     0x55d35a6e2d99 - core::result::Result<T,E>::unwrap::h89c3899ad99f3063
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/core/src/result.rs:973
[INFO] [stderr]     17:     0x55d35a6df735 - 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:     0x55d35a6e132b - core::ops::function::FnOnce::call_once::hd120cd3a7e75fd9d
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/core/src/ops/function.rs:227
[INFO] [stderr]     19:     0x55d35a6e0fde - std::sys_common::backtrace::__rust_begin_short_backtrace::hf3a82416bd80c3fb
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]     20:     0x55d35a6e15d1 - std::rt::lang_start::{{closure}}::h4ce1e7b3fc7bcf98
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/rt.rs:66
[INFO] [stderr]     21:     0x55d35a719851 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hecc21eb9018cc197
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/core/src/ops/function.rs:259
[INFO] [stderr]     22:     0x55d35a719851 - std::panicking::try::do_call::h174ad655d084b5c7
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/panicking.rs:381
[INFO] [stderr]     23:     0x55d35a719851 - std::panicking::try::h479e6054ce28de10
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/panicking.rs:345
[INFO] [stderr]     24:     0x55d35a719851 - std::panic::catch_unwind::hb558ddea2b3e9c45
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/panic.rs:382
[INFO] [stderr]     25:     0x55d35a719851 - std::rt::lang_start_internal::h163149047f0a8b61
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/rt.rs:51
[INFO] [stderr]     26:     0x55d35a6e15a7 - std::rt::lang_start::h9bd5ee95593aa6be
[INFO] [stderr]                                  at /rustc/72f88fc4e9458f89516a0b8b0868f3718aec5b47/library/std/src/rt.rs:65
[INFO] [stderr]     27:     0x55d35a6e07ca - main
[INFO] [stderr]     28:     0x7f4642f4e0b3 - __libc_start_main
[INFO] [stderr]     29:     0x55d35a6df0ae - _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" "7cc3837d61b021d76a987f5b264666e1b524313a2b80734d6c2810a3ff6843ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cc3837d61b021d76a987f5b264666e1b524313a2b80734d6c2810a3ff6843ed", kill_on_drop: false }`
[INFO] [stdout] 7cc3837d61b021d76a987f5b264666e1b524313a2b80734d6c2810a3ff6843ed
