[INFO] fetching crate metaculustetra 0.0.5...
[INFO] testing metaculustetra-0.0.5 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate metaculustetra 0.0.5 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate metaculustetra 0.0.5 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metaculustetra 0.0.5
[INFO] finished tweaking crates.io crate metaculustetra 0.0.5
[INFO] tweaked toml for crates.io crate metaculustetra 0.0.5 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf5dadf33e21ff643d7f7d0798ce0cf10e46db3ed5a9c6ebf84fd0eb6138fd43
[INFO] running `Command { std: "docker" "start" "-a" "cf5dadf33e21ff643d7f7d0798ce0cf10e46db3ed5a9c6ebf84fd0eb6138fd43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf5dadf33e21ff643d7f7d0798ce0cf10e46db3ed5a9c6ebf84fd0eb6138fd43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf5dadf33e21ff643d7f7d0798ce0cf10e46db3ed5a9c6ebf84fd0eb6138fd43", kill_on_drop: false }`
[INFO] [stdout] cf5dadf33e21ff643d7f7d0798ce0cf10e46db3ed5a9c6ebf84fd0eb6138fd43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe139b3a5897b98d4928810072f6def53a282b7d8235acbc26574c64bb4539ea
[INFO] running `Command { std: "docker" "start" "-a" "fe139b3a5897b98d4928810072f6def53a282b7d8235acbc26574c64bb4539ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling rustls v0.20.8
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling form_urlencoded v1.1.0
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling iana-time-zone v0.1.56
[INFO] [stderr]    Compiling flate2 v1.0.26
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling idna v0.3.0
[INFO] [stderr]    Compiling chrono v0.4.24
[INFO] [stderr]    Compiling url v2.3.1
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling webpki v0.22.0
[INFO] [stderr]    Compiling sct v0.7.0
[INFO] [stderr]    Compiling webpki-roots v0.22.6
[INFO] [stderr]    Compiling ureq v2.6.2
[INFO] [stderr]    Compiling metaculustetra v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.34s
[INFO] running `Command { std: "docker" "inspect" "fe139b3a5897b98d4928810072f6def53a282b7d8235acbc26574c64bb4539ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe139b3a5897b98d4928810072f6def53a282b7d8235acbc26574c64bb4539ea", kill_on_drop: false }`
[INFO] [stdout] fe139b3a5897b98d4928810072f6def53a282b7d8235acbc26574c64bb4539ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ea5f112ff526bf1b563ea88fa1f61b710f4999b6b4db3b698d2279e3e89a773
[INFO] running `Command { std: "docker" "start" "-a" "9ea5f112ff526bf1b563ea88fa1f61b710f4999b6b4db3b698d2279e3e89a773", kill_on_drop: false }`
[INFO] [stderr]    Compiling metaculustetra v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "9ea5f112ff526bf1b563ea88fa1f61b710f4999b6b4db3b698d2279e3e89a773", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ea5f112ff526bf1b563ea88fa1f61b710f4999b6b4db3b698d2279e3e89a773", kill_on_drop: false }`
[INFO] [stdout] 9ea5f112ff526bf1b563ea88fa1f61b710f4999b6b4db3b698d2279e3e89a773
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2cda9ff0867d1a051bcbcaff320ac8e0beca9eb2187a78c0ba4f39a545257e81
[INFO] running `Command { std: "docker" "start" "-a" "2cda9ff0867d1a051bcbcaff320ac8e0beca9eb2187a78c0ba4f39a545257e81", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/metaculustetra-f6315fd2cf04c2c6)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests metaculustetra
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - Metaculus (line 24) ... ok
[INFO] [stdout] test src/lib.rs - Question::get_best_prediction (line 109) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - Question::get_best_prediction (line 109) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }', src/lib.rs:10:66
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55dc061bf83a - std::backtrace_rs::backtrace::libunwind::trace::h2f05d0192276a8f6
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stdout]    1:     0x55dc061bf83a - std::backtrace_rs::backtrace::trace_unsynchronized::hedc23dff7a1af150
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55dc061bf83a - std::sys_common::backtrace::_print_fmt::h17541ef7592f3ce2
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:65:5
[INFO] [stdout]    3:     0x55dc061bf83a - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h20f75df5ab0c0792
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x55dc061dd96f - core::fmt::write::h78109e6f466b3af6
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/fmt/mod.rs:1254:17
[INFO] [stdout]    5:     0x55dc061bd625 - std::io::Write::write_fmt::hc59e1b02dd273c8a
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/io/mod.rs:1698:15
[INFO] [stdout]    6:     0x55dc061bf605 - std::sys_common::backtrace::_print::h8dac57a9f8fbf9a5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    7:     0x55dc061bf605 - std::sys_common::backtrace::print::hf9ecbf41d1aa712f
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    8:     0x55dc061c0b8e - std::panicking::default_hook::{{closure}}::h04c07acfc84ca028
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:269:22
[INFO] [stdout]    9:     0x55dc061c0935 - std::panicking::default_hook::h01f6bb23e1eceb2c
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:288:9
[INFO] [stdout]   10:     0x55dc061c10ee - std::panicking::rust_panic_with_hook::h2bb3722bbaf2f6df
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:691:13
[INFO] [stdout]   11:     0x55dc061c0fe9 - std::panicking::begin_panic_handler::{{closure}}::h91bc7f36a4be011b
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:582:13
[INFO] [stdout]   12:     0x55dc061bfca6 - std::sys_common::backtrace::__rust_end_short_backtrace::h8b3d3717114f9e59
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/sys_common/backtrace.rs:150:18
[INFO] [stdout]   13:     0x55dc061c0d42 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:578:5
[INFO] [stdout]   14:     0x55dc0613bf33 - core::panicking::panic_fmt::hfd368e3fbdabea26
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/panicking.rs:67:14
[INFO] [stdout]   15:     0x55dc0613c473 - core::result::unwrap_failed::he54eb4b2f125b26f
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/result.rs:1687:5
[INFO] [stdout]   16:     0x55dc06146614 - core::result::Result<T,E>::unwrap::h6d9dc11a66de1ed0
[INFO] [stdout]   17:     0x55dc0615141a - rust_out::main::_doctest_main_src_lib_rs_109_0::h2725b03f9c28114f
[INFO] [stdout]   18:     0x55dc061513d6 - rust_out::main::h2731449a68dfa004
[INFO] [stdout]   19:     0x55dc06145fc3 - core::ops::function::FnOnce::call_once::hd1715aa1b26fc35c
[INFO] [stdout]   20:     0x55dc06145736 - std::sys_common::backtrace::__rust_begin_short_backtrace::h8d2b4d09ce515535
[INFO] [stdout]   21:     0x55dc06145d09 - std::rt::lang_start::{{closure}}::hc9a918c63b0dc835
[INFO] [stdout]   22:     0x55dc061bb73e - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h2eb19b8ce4148df4
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/core/src/ops/function.rs:287:13
[INFO] [stdout]   23:     0x55dc061bb73e - std::panicking::try::do_call::h2e900feff5d504c5
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:485:40
[INFO] [stdout]   24:     0x55dc061bb73e - std::panicking::try::h8854836cb85aa9f2
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:449:19
[INFO] [stdout]   25:     0x55dc061bb73e - std::panic::catch_unwind::h706025dd4c48f64b
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panic.rs:140:14
[INFO] [stdout]   26:     0x55dc061bb73e - std::rt::lang_start_internal::{{closure}}::h7be5b97f4a07a91a
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/rt.rs:148:48
[INFO] [stdout]   27:     0x55dc061bb73e - std::panicking::try::do_call::h59847e9d0a176965
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:485:40
[INFO] [stdout]   28:     0x55dc061bb73e - std::panicking::try::h399a918ba8522823
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panicking.rs:449:19
[INFO] [stdout]   29:     0x55dc061bb73e - std::panic::catch_unwind::hca7ca6c55b2a2e26
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/panic.rs:140:14
[INFO] [stdout]   30:     0x55dc061bb73e - std::rt::lang_start_internal::h2c807a81560459eb
[INFO] [stdout]                                at /rustc/1b7dd2252b99671ce5d1cb9664c5f8636329436d/library/std/src/rt.rs:148:20
[INFO] [stdout]   31:     0x55dc06145ce7 - std::rt::lang_start::hc4bd3329ce767e23
[INFO] [stdout]   32:     0x55dc061517a5 - main
[INFO] [stdout]   33:     0x7f5625923d90 - <unknown>
[INFO] [stdout]   34:     0x7f5625923e40 - __libc_start_main
[INFO] [stdout]   35:     0x55dc0613c5b5 - _start
[INFO] [stdout]   36:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - Question::get_best_prediction (line 109)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.15s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "2cda9ff0867d1a051bcbcaff320ac8e0beca9eb2187a78c0ba4f39a545257e81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cda9ff0867d1a051bcbcaff320ac8e0beca9eb2187a78c0ba4f39a545257e81", kill_on_drop: false }`
[INFO] [stdout] 2cda9ff0867d1a051bcbcaff320ac8e0beca9eb2187a78c0ba4f39a545257e81
