[INFO] cloning repository https://github.com/Autoparallel/learner
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Autoparallel/learner" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAutoparallel%2Flearner", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAutoparallel%2Flearner'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 164157a434ccfa1f2e3e18dbd1b0355392c67c0f
[INFO] checking Autoparallel/learner against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAutoparallel%2Flearner" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-3-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/Autoparallel/learner
[INFO] finished tweaking git repo https://github.com/Autoparallel/learner
[INFO] tweaked toml for git repo https://github.com/Autoparallel/learner written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Autoparallel/learner on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Autoparallel/learner already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8d425cbed988d66e60d9c955945e44af44f4ddc71671328650d15bc3a94f99e
[INFO] running `Command { std: "docker" "start" "-a" "a8d425cbed988d66e60d9c955945e44af44f4ddc71671328650d15bc3a94f99e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8d425cbed988d66e60d9c955945e44af44f4ddc71671328650d15bc3a94f99e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8d425cbed988d66e60d9c955945e44af44f4ddc71671328650d15bc3a94f99e", kill_on_drop: false }`
[INFO] [stdout] a8d425cbed988d66e60d9c955945e44af44f4ddc71671328650d15bc3a94f99e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c144d6f6d26f133cb31ea00b37915367316d0fd30b9214c6d75066122db8cb67
[INFO] running `Command { std: "docker" "start" "-a" "c144d6f6d26f133cb31ea00b37915367316d0fd30b9214c6d75066122db8cb67", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.2.1
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking regex-automata v0.4.8
[INFO] [stderr]    Compiling ahash v0.8.11
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[INFO] [stderr]    Compiling rustls v0.23.18
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[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling serde_json v1.0.133
[INFO] [stderr]    Compiling rustix v0.38.41
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking miniz_oxide v0.8.0
[INFO] [stderr]     Checking time v0.3.36
[INFO] [stderr]     Checking sharded-slab v0.1.7
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[INFO] [stderr]     Checking webpki-roots v0.26.7
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]    Compiling thiserror v2.0.3
[INFO] [stderr]     Checking winnow v0.6.20
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
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[INFO] [stderr]    Compiling ring v0.17.8
[INFO] [stderr]    Compiling libsqlite3-sys v0.30.1
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[INFO] [stderr]     Checking hashlink v0.9.1
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[INFO] [stderr]     Checking bstr v1.11.0
[INFO] [stderr]     Checking predicates v3.1.2
[INFO] [stderr]     Checking tempfile v3.14.0
[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr]    Compiling zerofrom-derive v0.1.5
[INFO] [stderr]    Compiling yoke-derive v0.7.5
[INFO] [stderr]    Compiling serde_derive v1.0.215
[INFO] [stderr]    Compiling zerovec-derive v0.10.3
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling tokio-macros v2.4.0
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[INFO] [stderr]    Compiling thiserror-impl v2.0.3
[INFO] [stderr]    Compiling async-trait v0.1.83
[INFO] [stderr]    Compiling clap_derive v4.5.18
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
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[INFO] [stderr]     Checking hyper-util v0.1.10
[INFO] [stderr]     Checking chrono v0.4.38
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[INFO] [stderr]     Checking hyper-rustls v0.27.3
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[INFO] [stderr]     Checking idna v1.0.3
[INFO] [stderr]     Checking url v2.5.4
[INFO] [stderr]     Checking reqwest v0.12.9
[INFO] [stderr]     Checking toml v0.8.19
[INFO] [stderr]     Checking rusqlite v0.32.1
[INFO] [stderr]     Checking tokio-rusqlite v0.6.0
[INFO] [stderr]     Checking learner v0.9.1 (/opt/rustwide/workdir/crates/learner)
[INFO] [stderr]     Checking learnerd v0.3.6 (/opt/rustwide/workdir/crates/learnerd)
[INFO] [stderr]     Checking learner-sdk v0.1.0 (/opt/rustwide/workdir/crates/sdk)
[INFO] [stdout] warning: unused import: `arg`
[INFO] [stdout]   --> crates/learnerd/src/commands/mod.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | use clap::{arg, Args};
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `arg`
[INFO] [stdout]   --> crates/learnerd/src/commands/mod.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | use clap::{arg, Args};
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::path::PathBuf, Infallible>
[INFO] [stdout]   --> crates/learner/tests/workflows/database_operations/mod.rs:57:31
[INFO] [stdout]    |
[INFO] [stdout] 57 |   assert!(paper.download_pdf(&PathBuf::from_str(".").unwrap()).await.is_err());
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `learner` (test "lib") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "c144d6f6d26f133cb31ea00b37915367316d0fd30b9214c6d75066122db8cb67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c144d6f6d26f133cb31ea00b37915367316d0fd30b9214c6d75066122db8cb67", kill_on_drop: false }`
[INFO] [stdout] c144d6f6d26f133cb31ea00b37915367316d0fd30b9214c6d75066122db8cb67