[INFO] fetching crate aocleaderboard 0.3.0...
[INFO] testing aocleaderboard-0.3.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate aocleaderboard 0.3.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate aocleaderboard 0.3.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate aocleaderboard 0.3.0
[INFO] finished tweaking crates.io crate aocleaderboard 0.3.0
[INFO] tweaked toml for crates.io crate aocleaderboard 0.3.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate aocleaderboard 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", 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] 8afebda58cd4b64955cac4c080e85c67712a6e57f94496096c1c7058a49ca3bf
[INFO] running `Command { std: "docker" "start" "-a" "8afebda58cd4b64955cac4c080e85c67712a6e57f94496096c1c7058a49ca3bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8afebda58cd4b64955cac4c080e85c67712a6e57f94496096c1c7058a49ca3bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8afebda58cd4b64955cac4c080e85c67712a6e57f94496096c1c7058a49ca3bf", kill_on_drop: false }`
[INFO] [stdout] 8afebda58cd4b64955cac4c080e85c67712a6e57f94496096c1c7058a49ca3bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd041489cb8114776dfe7884a0da33e7cc26d14f5a3f02f5e43280b0c25945ed
[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" "fd041489cb8114776dfe7884a0da33e7cc26d14f5a3f02f5e43280b0c25945ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling tinyvec v0.3.4
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling untrusted v0.6.2
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling pin-project-lite v0.1.11
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling futures-sink v0.3.8
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling subtle v2.3.0
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling once_cell v1.4.1
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling subtle v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling futures-io v0.3.8
[INFO] [stderr]    Compiling zeroize v1.1.1
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling regex-syntax v0.6.20
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling unic-common v0.7.0
[INFO] [stderr]    Compiling unic-char-range v0.7.0
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling adler v0.2.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]    Compiling serde v0.8.23
[INFO] [stderr]    Compiling state v0.4.1
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]    Compiling object v0.22.0
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]    Compiling encoding_rs v0.8.24
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling tower-service v0.3.0
[INFO] [stderr]    Compiling deunicode v0.4.3
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling linked-hash-map v0.5.3
[INFO] [stderr]    Compiling dtoa v0.4.6
[INFO] [stderr]    Compiling humansize v1.1.0
[INFO] [stderr]    Compiling custom_derive v0.1.7
[INFO] [stderr]    Compiling humantime v2.0.1
[INFO] [stderr]    Compiling rust-ini v0.13.0
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling pear_codegen v0.1.4
[INFO] [stderr]    Compiling rocket_codegen v0.4.5
[INFO] [stderr]    Compiling rocket v0.4.5
[INFO] [stderr]    Compiling http v0.2.1
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling unicode-normalization v0.1.13
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling addr2line v0.14.0
[INFO] [stderr]    Compiling unic-ucd-version v0.7.0
[INFO] [stderr]    Compiling unic-char-property v0.7.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling conv v0.3.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling slug v0.1.4
[INFO] [stderr]    Compiling yaml-rust v0.4.4
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr] error: failed to run custom build command for `pear_codegen v0.1.4`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/pear_codegen-6b748e2f788c6e14/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   [1;31mError:[0m [1mPear requires a 'dev' or 'nightly' version of rustc.[0m
[INFO] [stderr]   Installed version: [33m1.54.0 (2021-07-26)[0m
[INFO] [stderr]   Minimum required:  [33m1.31.0-nightly (2018-10-05)[0m
[INFO] [stderr]   thread 'main' panicked at 'Aborting compilation due to incompatible compiler.', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.1.4/build.rs:24:13
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55e609509d30 - std::backtrace_rs::backtrace::libunwind::trace::h34055254b57d8e79
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x55e609509d30 - std::backtrace_rs::backtrace::trace_unsynchronized::h8f1e3fbd9afff6ec
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55e609509d30 - std::sys_common::backtrace::_print_fmt::h3a99a796b770c360
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55e609509d30 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h32d1f94a80615d18
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x55e609526d4c - core::fmt::write::h306731c068f7162c
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/fmt/mod.rs:1110:17
[INFO] [stderr]      5:     0x55e609507bb5 - std::io::Write::write_fmt::hd2fa90334eee2a21
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/io/mod.rs:1588:15
[INFO] [stderr]      6:     0x55e60950b95b - std::sys_common::backtrace::_print::h5abaa2601a852287
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55e60950b95b - std::sys_common::backtrace::print::h8d81445442bb638f
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55e60950b95b - std::panicking::default_hook::{{closure}}::hcfe804496a9fa747
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x55e60950b431 - std::panicking::default_hook::hbea8e3ccf2ba8901
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x55e60950c024 - std::panicking::rust_panic_with_hook::h7ee9e1a2d0f8975a
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:622:17
[INFO] [stderr]     11:     0x55e6094daa8f - std::panicking::begin_panic::{{closure}}::h7166a5ba67cced5a
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:542:9
[INFO] [stderr]     12:     0x55e6094db538 - std::sys_common::backtrace::__rust_end_short_backtrace::h557e81fe762c4aca
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x55e6094da9d5 - std::panicking::begin_panic::he9e3d83549f71500
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:541:12
[INFO] [stderr]     14:     0x55e6094dc2cd - build_script_build::main::h95d116ef32495c84
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.1.4/build.rs:24:13
[INFO] [stderr]     15:     0x55e6094dae5b - core::ops::function::FnOnce::call_once::h10fa1358406fad61
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     16:     0x55e6094db57e - std::sys_common::backtrace::__rust_begin_short_backtrace::h6302d736a202d0e0
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     17:     0x55e6094da6b1 - std::rt::lang_start::{{closure}}::h2d84fba602a1c5be
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:49:18
[INFO] [stderr]     18:     0x55e60950c529 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h2aabc384aab89b7b
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     19:     0x55e60950c529 - std::panicking::try::do_call::hc5fcacb7a85fc7b1
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stderr]     20:     0x55e60950c529 - std::panicking::try::hb5d9603af3abbe3a
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stderr]     21:     0x55e60950c529 - std::panic::catch_unwind::h98fe6ac3925e64b4
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stderr]     22:     0x55e60950c529 - std::rt::lang_start_internal::h22ac7383c516f93e
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:34:21
[INFO] [stderr]     23:     0x55e6094da690 - std::rt::lang_start::hbf1e59d2c4b006d1
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:48:5
[INFO] [stderr]     24:     0x55e6094dc8cc - main
[INFO] [stderr]     25:     0x7f4c602c80b3 - __libc_start_main
[INFO] [stderr]     26:     0x55e6094d996e - _start
[INFO] [stderr]     27:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "fd041489cb8114776dfe7884a0da33e7cc26d14f5a3f02f5e43280b0c25945ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd041489cb8114776dfe7884a0da33e7cc26d14f5a3f02f5e43280b0c25945ed", kill_on_drop: false }`
[INFO] [stdout] fd041489cb8114776dfe7884a0da33e7cc26d14f5a3f02f5e43280b0c25945ed
