[INFO] fetching crate metaculustetra 0.0.5...
[INFO] testing metaculustetra-0.0.5 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate metaculustetra 0.0.5 into /workspace/builds/worker-2-tc2/source
[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-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate metaculustetra 0.0.5 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 94 packages to latest compatible versions
[INFO] [stderr]       Adding ureq v2.12.1 (available: v3.1.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] d386a40f29d909e9add6f4b0568b6c4ff74e4f407a6c9fab37e63463604f59c0
[INFO] running `Command { std: "docker" "start" "-a" "d386a40f29d909e9add6f4b0568b6c4ff74e4f407a6c9fab37e63463604f59c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d386a40f29d909e9add6f4b0568b6c4ff74e4f407a6c9fab37e63463604f59c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d386a40f29d909e9add6f4b0568b6c4ff74e4f407a6c9fab37e63463604f59c0", kill_on_drop: false }`
[INFO] [stdout] d386a40f29d909e9add6f4b0568b6c4ff74e4f407a6c9fab37e63463604f59c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ffeea283562e6dc4f3b1b06cbebabb0893fc336609757518d8b4d189654756f
[INFO] running `Command { std: "docker" "start" "-a" "8ffeea283562e6dc4f3b1b06cbebabb0893fc336609757518d8b4d189654756f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling ring v0.17.14
[INFO] [stderr]    Compiling rustls-pki-types v1.13.0
[INFO] [stderr]    Compiling syn v2.0.108
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling rustls v0.23.35
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling percent-encoding v2.3.2
[INFO] [stderr]    Compiling simd-adler32 v0.3.7
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling iana-time-zone v0.1.64
[INFO] [stderr]    Compiling webpki-roots v1.0.4
[INFO] [stderr]    Compiling webpki-roots v0.26.11
[INFO] [stderr]    Compiling flate2 v1.1.5
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.1
[INFO] [stderr]    Compiling zerovec-derive v0.11.2
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling zerofrom v0.1.6
[INFO] [stderr]    Compiling yoke v0.8.1
[INFO] [stderr]    Compiling zerovec v0.11.5
[INFO] [stderr]    Compiling zerotrie v0.2.3
[INFO] [stderr]    Compiling tinystr v0.8.2
[INFO] [stderr]    Compiling potential_utf v0.1.4
[INFO] [stderr]    Compiling icu_collections v2.1.1
[INFO] [stderr]    Compiling icu_locale_core v2.1.1
[INFO] [stderr]    Compiling rustls-webpki v0.103.8
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling icu_provider v2.1.1
[INFO] [stderr]    Compiling icu_normalizer v2.1.1
[INFO] [stderr]    Compiling icu_properties v2.1.1
[INFO] [stderr]    Compiling idna_adapter v1.2.1
[INFO] [stderr]    Compiling idna v1.1.0
[INFO] [stderr]    Compiling url v2.5.7
[INFO] [stderr]    Compiling ureq v2.12.1
[INFO] [stderr]    Compiling metaculustetra v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stdout]   --> src/date_utils.rs:24:18
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 .timestamp() as f64,
[INFO] [stdout]    |                  ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stdout]    --> src/index.rs:141:28
[INFO] [stdout]     |
[INFO] [stdout] 141 |                         (p.timestamp() as f64 / self.zero).ln() * self.weight
[INFO] [stdout]     |                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stdout]    --> src/index.rs:143:28
[INFO] [stdout]     |
[INFO] [stdout] 143 |                         (p.timestamp() as f64 - self.zero) * self.weight
[INFO] [stdout]     |                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `chrono::NaiveDateTime::from_timestamp_opt`: use `DateTime::from_timestamp` instead
[INFO] [stdout]    --> src/lib.rs:172:42
[INFO] [stdout]     |
[INFO] [stdout] 172 |                 Some(DatP(NaiveDateTime::from_timestamp_opt(
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stdout]    --> src/lib.rs:224:47
[INFO] [stdout]     |
[INFO] [stdout] 224 |             .find(|it| it.timestamp() <= date.timestamp() as f64)?
[INFO] [stdout]     |                                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stdout]    --> src/lib.rs:245:47
[INFO] [stdout]     |
[INFO] [stdout] 245 |             .find(|it| it.timestamp() <= date.timestamp() as f64)?
[INFO] [stdout]     |                                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 43.70s
[INFO] running `Command { std: "docker" "inspect" "8ffeea283562e6dc4f3b1b06cbebabb0893fc336609757518d8b4d189654756f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ffeea283562e6dc4f3b1b06cbebabb0893fc336609757518d8b4d189654756f", kill_on_drop: false }`
[INFO] [stdout] 8ffeea283562e6dc4f3b1b06cbebabb0893fc336609757518d8b4d189654756f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f79bcc34afb94d85b32b7913a6845379e9394f6e38ddca97190ae204e03e4ed5
[INFO] running `Command { std: "docker" "start" "-a" "f79bcc34afb94d85b32b7913a6845379e9394f6e38ddca97190ae204e03e4ed5", kill_on_drop: false }`
[INFO] [stdout] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stdout]   --> src/date_utils.rs:24:18
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 .timestamp() as f64,
[INFO] [stdout]    |                  ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stdout]    --> src/index.rs:141:28
[INFO] [stdout]     |
[INFO] [stdout] 141 |                         (p.timestamp() as f64 / self.zero).ln() * self.weight
[INFO] [stdout]     |                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stdout]    --> src/index.rs:143:28
[INFO] [stdout]     |
[INFO] [stdout] 143 |                         (p.timestamp() as f64 - self.zero) * self.weight
[INFO] [stdout]     |                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `chrono::NaiveDateTime::from_timestamp_opt`: use `DateTime::from_timestamp` instead
[INFO] [stdout]    --> src/lib.rs:172:42
[INFO] [stdout]     |
[INFO] [stdout] 172 |                 Some(DatP(NaiveDateTime::from_timestamp_opt(
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stdout]    --> src/lib.rs:224:47
[INFO] [stdout]     |
[INFO] [stdout] 224 |             .find(|it| it.timestamp() <= date.timestamp() as f64)?
[INFO] [stdout]     |                                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stdout]    --> src/lib.rs:245:47
[INFO] [stdout]     |
[INFO] [stdout] 245 |             .find(|it| it.timestamp() <= date.timestamp() as f64)?
[INFO] [stdout]     |                                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling metaculustetra v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stdout]   --> src/date_utils.rs:24:18
[INFO] [stdout]    |
[INFO] [stdout] 24 |                 .timestamp() as f64,
[INFO] [stdout]    |                  ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stdout]    --> src/index.rs:141:28
[INFO] [stdout]     |
[INFO] [stdout] 141 |                         (p.timestamp() as f64 / self.zero).ln() * self.weight
[INFO] [stdout]     |                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stdout]    --> src/index.rs:143:28
[INFO] [stdout]     |
[INFO] [stdout] 143 |                         (p.timestamp() as f64 - self.zero) * self.weight
[INFO] [stdout]     |                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `chrono::NaiveDateTime::from_timestamp_opt`: use `DateTime::from_timestamp` instead
[INFO] [stdout]    --> src/lib.rs:172:42
[INFO] [stdout]     |
[INFO] [stdout] 172 |                 Some(DatP(NaiveDateTime::from_timestamp_opt(
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stdout]    --> src/lib.rs:224:47
[INFO] [stdout]     |
[INFO] [stdout] 224 |             .find(|it| it.timestamp() <= date.timestamp() as f64)?
[INFO] [stdout]     |                                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stdout]    --> src/lib.rs:245:47
[INFO] [stdout]     |
[INFO] [stdout] 245 |             .find(|it| it.timestamp() <= date.timestamp() as f64)?
[INFO] [stdout]     |                                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "f79bcc34afb94d85b32b7913a6845379e9394f6e38ddca97190ae204e03e4ed5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f79bcc34afb94d85b32b7913a6845379e9394f6e38ddca97190ae204e03e4ed5", kill_on_drop: false }`
[INFO] [stdout] f79bcc34afb94d85b32b7913a6845379e9394f6e38ddca97190ae204e03e4ed5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 891bb4cbf5bface67fb8261906e802e4b7a10c3c9d0bcf6d8d9a6d963cec46de
[INFO] running `Command { std: "docker" "start" "-a" "891bb4cbf5bface67fb8261906e802e4b7a10c3c9d0bcf6d8d9a6d963cec46de", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stderr]   --> src/date_utils.rs:24:18
[INFO] [stderr]    |
[INFO] [stderr] 24 |                 .timestamp() as f64,
[INFO] [stderr]    |                  ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stderr]    --> src/index.rs:141:28
[INFO] [stderr]     |
[INFO] [stderr] 141 |                         (p.timestamp() as f64 / self.zero).ln() * self.weight
[INFO] [stderr]     |                            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stderr]    --> src/index.rs:143:28
[INFO] [stderr]     |
[INFO] [stderr] 143 |                         (p.timestamp() as f64 - self.zero) * self.weight
[INFO] [stderr]     |                            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `chrono::NaiveDateTime::from_timestamp_opt`: use `DateTime::from_timestamp` instead
[INFO] [stderr]    --> src/lib.rs:172:42
[INFO] [stderr]     |
[INFO] [stderr] 172 |                 Some(DatP(NaiveDateTime::from_timestamp_opt(
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stderr]    --> src/lib.rs:224:47
[INFO] [stderr]     |
[INFO] [stderr] 224 |             .find(|it| it.timestamp() <= date.timestamp() as f64)?
[INFO] [stderr]     |                                               ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated method `chrono::NaiveDateTime::timestamp`: use `.and_utc().timestamp()` instead
[INFO] [stderr]    --> src/lib.rs:245:47
[INFO] [stderr]     |
[INFO] [stderr] 245 |             .find(|it| it.timestamp() <= date.timestamp() as f64)?
[INFO] [stderr]     |                                               ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `metaculustetra` (lib) generated 6 warnings
[INFO] [stderr] warning: `metaculustetra` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/metaculustetra-9781344c206c2937)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests metaculustetra
[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] 
[INFO] [stdout] thread 'main' (59) panicked at src/lib.rs:11:66:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x61b48161ca02 - std::backtrace_rs::backtrace::libunwind::trace::h16acf28769fcd909
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x61b48161ca02 - std::backtrace_rs::backtrace::trace_unsynchronized::hb5541aa5d4f92513
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x61b48161ca02 - std::sys::backtrace::_print_fmt::h8ac8268cb667a306
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x61b48161ca02 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h47627beda0767f4c
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x61b48162c7df - core::fmt::rt::Argument::fmt::h686a01ad57c1c92a
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x61b48162c7df - core::fmt::write::h8a63064c67176fd8
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x61b4815faf63 - std::io::default_write_fmt::hc257f38f86d39af6
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x61b4815faf63 - std::io::Write::write_fmt::h5e9b646cef91150b
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x61b481600452 - std::sys::backtrace::BacktraceLock::print::h4634d27c0afbaebb
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x61b481601ccc - std::panicking::default_hook::{{closure}}::h23e0299d4738b766
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x61b481601b26 - std::panicking::default_hook::hfeec6294e8751b62
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:328:9
[INFO] [stdout]   11:     0x61b4816022a5 - std::panicking::panic_with_hook::hd57cd463d793ed79
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:834:13
[INFO] [stdout]   12:     0x61b48160213a - std::panicking::panic_handler::{{closure}}::hddd6216c3fddee3b
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:707:13
[INFO] [stdout]   13:     0x61b481600589 - std::sys::backtrace::__rust_end_short_backtrace::h5e7a56f283378525
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   14:     0x61b4815efb3d - __rustc[256c90bb7e548b45]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:698:5
[INFO] [stdout]   15:     0x61b481633f50 - core::panicking::panic_fmt::hf19c198748ef6a95
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x61b481633536 - core::result::unwrap_failed::he81173b5792ad6b0
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/result.rs:1862:5
[INFO] [stdout]   17:     0x61b481597b61 - rust_out::main::_doctest_main_src_lib_rs_109_0::h4a1e80bd3c51bf62
[INFO] [stdout]   18:     0x61b481597af6 - rust_out::main::he986860d8b7bc94f
[INFO] [stdout]   19:     0x61b481593ed3 - core::ops::function::FnOnce::call_once::hd0f888ea33950d2d
[INFO] [stdout]   20:     0x61b481593dc6 - std::sys::backtrace::__rust_begin_short_backtrace::h70a8cfcb1f800bff
[INFO] [stdout]   21:     0x61b481593da9 - std::rt::lang_start::{{closure}}::h03ca8d00642774ee
[INFO] [stdout]   22:     0x61b4815fc310 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hdf957eac011d0136
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   23:     0x61b4815fc310 - std::panicking::catch_unwind::do_call::h9ff550f7799115e1
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40
[INFO] [stdout]   24:     0x61b4815fc310 - std::panicking::catch_unwind::ha7ce46787bb12905
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19
[INFO] [stdout]   25:     0x61b4815fc310 - std::panic::catch_unwind::h625b36596def7d39
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14
[INFO] [stdout]   26:     0x61b4815fc310 - std::rt::lang_start_internal::{{closure}}::h4cbc9430de699e2c
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/rt.rs:175:24
[INFO] [stdout]   27:     0x61b4815fc310 - std::panicking::catch_unwind::do_call::h5af2f11409a22e3e
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40
[INFO] [stdout]   28:     0x61b4815fc310 - std::panicking::catch_unwind::hf64cf7b0d8070f52
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19
[INFO] [stdout]   29:     0x61b4815fc310 - std::panic::catch_unwind::h480b74763390cdcf
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x61b4815fc310 - std::rt::lang_start_internal::h4b3d04f698aef094
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/rt.rs:171:5
[INFO] [stdout]   31:     0x61b481593d91 - std::rt::lang_start::h457230af78cce7e7
[INFO] [stdout]   32:     0x61b48159c8f5 - main
[INFO] [stdout]   33:     0x7b2fba2af1ca - <unknown>
[INFO] [stdout]   34:     0x7b2fba2af28b - __libc_start_main
[INFO] [stdout]   35:     0x61b481589845 - _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 1.20s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "891bb4cbf5bface67fb8261906e802e4b7a10c3c9d0bcf6d8d9a6d963cec46de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "891bb4cbf5bface67fb8261906e802e4b7a10c3c9d0bcf6d8d9a6d963cec46de", kill_on_drop: false }`
[INFO] [stdout] 891bb4cbf5bface67fb8261906e802e4b7a10c3c9d0bcf6d8d9a6d963cec46de
