[INFO] fetching crate era-compiler-downloader 1.5.0...
[INFO] checking era-compiler-downloader-1.5.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate era-compiler-downloader 1.5.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate era-compiler-downloader 1.5.0
[INFO] finished tweaking crates.io crate era-compiler-downloader 1.5.0
[INFO] tweaked toml for crates.io crate era-compiler-downloader 1.5.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate era-compiler-downloader 1.5.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 158 packages to latest compatible versions
[INFO] [stderr]       Adding anyhow v1.0.89 (available: v1.0.100)
[INFO] [stderr]       Adding colored v2.1.0 (available: v2.2.0)
[INFO] [stderr]       Adding native-tls v0.2.12 (available: v0.2.14)
[INFO] [stderr]       Adding openssl v0.10.68 (available: v0.10.75)
[INFO] [stderr]       Adding reqwest v0.11.27 (available: v0.12.24)
[INFO] [stderr]       Adding serde v1.0.210 (available: v1.0.228)
[INFO] [stderr]       Adding serde_derive v1.0.210 (available: v1.0.228)
[INFO] [stderr]       Adding serde_json v1.0.128 (available: v1.0.145)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] ab92b15cfb03b7d6213f2d6d0f4c897706593828cf7edff351d6489720045b6f
[INFO] running `Command { std: "docker" "start" "-a" "ab92b15cfb03b7d6213f2d6d0f4c897706593828cf7edff351d6489720045b6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab92b15cfb03b7d6213f2d6d0f4c897706593828cf7edff351d6489720045b6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab92b15cfb03b7d6213f2d6d0f4c897706593828cf7edff351d6489720045b6f", kill_on_drop: false }`
[INFO] [stdout] ab92b15cfb03b7d6213f2d6d0f4c897706593828cf7edff351d6489720045b6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] ba46446e69fa99908139e608ed16a286f22d6036a83b32e04c5b1611c945d02c
[INFO] running `Command { std: "docker" "start" "-a" "ba46446e69fa99908139e608ed16a286f22d6036a83b32e04c5b1611c945d02c", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]     Checking stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]     Checking writeable v0.6.2
[INFO] [stderr]     Checking litemap v0.8.1
[INFO] [stderr]    Compiling icu_properties_data v2.1.1
[INFO] [stderr]    Compiling cc v1.2.45
[INFO] [stderr]    Compiling icu_normalizer_data v2.1.1
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]    Compiling openssl v0.10.68
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]     Checking tracing-core v0.1.34
[INFO] [stderr]     Checking socket2 v0.6.1
[INFO] [stderr]     Checking mio v1.1.0
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling httparse v1.10.1
[INFO] [stderr]     Checking bitflags v2.10.0
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]     Checking slab v0.4.11
[INFO] [stderr]    Compiling native-tls v0.2.12
[INFO] [stderr]     Checking indexmap v2.12.0
[INFO] [stderr]     Checking log v0.4.28
[INFO] [stderr]     Checking try-lock v0.2.5
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking openssl-probe v0.1.6
[INFO] [stderr]     Checking form_urlencoded v1.2.2
[INFO] [stderr]     Checking want v0.3.1
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking socket2 v0.5.10
[INFO] [stderr]     Checking tokio v1.48.0
[INFO] [stderr]     Checking utf8_iter v1.0.4
[INFO] [stderr]     Checking tower-service v0.3.3
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]     Checking httpdate v1.0.3
[INFO] [stderr]    Compiling anyhow v1.0.89
[INFO] [stderr]     Checking base64 v0.21.7
[INFO] [stderr]     Checking encoding_rs v0.8.35
[INFO] [stderr]     Checking ipnet v2.11.0
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking mime v0.3.17
[INFO] [stderr]     Checking sync_wrapper v0.1.2
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking colored v2.1.0
[INFO] [stderr]     Checking rustls-pemfile v1.0.4
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling openssl-sys v0.9.111
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling zerovec-derive v0.11.2
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.1
[INFO] [stderr]     Checking tokio-util v0.7.17
[INFO] [stderr]     Checking h2 v0.3.27
[INFO] [stderr]     Checking zerofrom v0.1.6
[INFO] [stderr]     Checking yoke v0.8.1
[INFO] [stderr]     Checking zerovec v0.11.5
[INFO] [stderr]     Checking zerotrie v0.2.3
[INFO] [stderr]     Checking tinystr v0.8.2
[INFO] [stderr]     Checking potential_utf v0.1.4
[INFO] [stderr]     Checking icu_collections v2.1.1
[INFO] [stderr]     Checking icu_locale_core v2.1.1
[INFO] [stderr]     Checking icu_provider v2.1.1
[INFO] [stderr]     Checking icu_normalizer v2.1.1
[INFO] [stderr]     Checking icu_properties v2.1.1
[INFO] [stderr]     Checking hyper v0.14.32
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking idna_adapter v1.2.1
[INFO] [stderr]     Checking idna v1.1.0
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking url v2.5.7
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.27
[INFO] [stderr]     Checking era-compiler-downloader v1.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/lib.rs:69:36
[INFO] [stdout]    |
[INFO] [stdout] 69 |               let destination_path = PathBuf::from_str(
[INFO] [stdout]    |  ____________________________________^
[INFO] [stdout] 70 | |                 format!("{destination_path}{}", std::env::consts::EXE_SUFFIX).as_str(),
[INFO] [stdout] 71 | |             )
[INFO] [stdout]    | |_____________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/lib.rs:69:36
[INFO] [stdout]    |
[INFO] [stdout] 69 |               let destination_path = PathBuf::from_str(
[INFO] [stdout]    |  ____________________________________^
[INFO] [stdout] 70 | |                 format!("{destination_path}{}", std::env::consts::EXE_SUFFIX).as_str(),
[INFO] [stdout] 71 | |             )
[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 `era-compiler-downloader` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `era-compiler-downloader` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "ba46446e69fa99908139e608ed16a286f22d6036a83b32e04c5b1611c945d02c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba46446e69fa99908139e608ed16a286f22d6036a83b32e04c5b1611c945d02c", kill_on_drop: false }`
[INFO] [stdout] ba46446e69fa99908139e608ed16a286f22d6036a83b32e04c5b1611c945d02c