[INFO] fetching crate antler 1.0.0...
[INFO] checking antler-1.0.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate antler 1.0.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate antler 1.0.0
[INFO] finished tweaking crates.io crate antler 1.0.0
[INFO] tweaked toml for crates.io crate antler 1.0.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate antler 1.0.0 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] crate crates.io crate antler 1.0.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 60f8a0938a48bd014aa74c4e3f1bc47d8740720f65163ad346f3d809ef702ccd
[INFO] running `Command { std: "docker" "start" "-a" "60f8a0938a48bd014aa74c4e3f1bc47d8740720f65163ad346f3d809ef702ccd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60f8a0938a48bd014aa74c4e3f1bc47d8740720f65163ad346f3d809ef702ccd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60f8a0938a48bd014aa74c4e3f1bc47d8740720f65163ad346f3d809ef702ccd", kill_on_drop: false }`
[INFO] [stdout] 60f8a0938a48bd014aa74c4e3f1bc47d8740720f65163ad346f3d809ef702ccd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a7af34e60bb8032f54be68ced485b95c4205de40d4ba0ef43cc14a2645f5a5cd
[INFO] running `Command { std: "docker" "start" "-a" "a7af34e60bb8032f54be68ced485b95c4205de40d4ba0ef43cc14a2645f5a5cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling serde_derive v1.0.144
[INFO] [stderr]     Checking once_cell v1.14.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.10
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]     Checking bytemuck v1.12.1
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.34
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]    Compiling paste v1.0.9
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking safe_arch v0.6.0
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking num-rational v0.4.1
[INFO] [stderr]     Checking noisy_float v0.2.0
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]     Checking slice-of-array v0.3.2
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wide v0.7.4
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking console v0.15.1
[INFO] [stderr]    Compiling phf_generator v0.11.1
[INFO] [stderr]    Compiling phf_macros v0.11.1
[INFO] [stderr]     Checking indicatif v0.17.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]    Compiling thiserror v1.0.34
[INFO] [stderr]    Compiling pest v2.3.0
[INFO] [stderr]     Checking phf v0.11.1
[INFO] [stderr]     Checking rayon-core v1.9.3
[INFO] [stderr]    Compiling pest_meta v2.3.0
[INFO] [stderr]     Checking rayon v1.5.3
[INFO] [stderr]    Compiling pest_generator v2.3.0
[INFO] [stderr]    Compiling pest_derive v2.3.0
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]    Compiling find-crate v0.6.3
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]     Checking json5 v0.4.1
[INFO] [stderr]    Compiling palette_derive v0.6.1
[INFO] [stderr]     Checking simba v0.7.2
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking palette v0.6.1
[INFO] [stderr]     Checking ndarray-stats v0.5.1
[INFO] [stderr]     Checking nalgebra v0.31.1
[INFO] [stderr]     Checking arctk v2.0.6
[INFO] [stderr]     Checking antler v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | /     args!(
[INFO] [stdout] 25 | |         _bin_path: PathBuf,
[INFO] [stdout] 26 | |         output_dir: PathBuf,
[INFO] [stdout] 27 | |         parameters_path: PathBuf
[INFO] [stdout] 28 | |     );
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `args` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | /     args!(
[INFO] [stdout] 25 | |         _bin_path: PathBuf,
[INFO] [stdout] 26 | |         output_dir: PathBuf,
[INFO] [stdout] 27 | |         parameters_path: PathBuf
[INFO] [stdout] 28 | |     );
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]    = note: this error originates in the macro `args` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `antler` (bin "antler") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `antler` (bin "antler" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "a7af34e60bb8032f54be68ced485b95c4205de40d4ba0ef43cc14a2645f5a5cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7af34e60bb8032f54be68ced485b95c4205de40d4ba0ef43cc14a2645f5a5cd", kill_on_drop: false }`
[INFO] [stdout] a7af34e60bb8032f54be68ced485b95c4205de40d4ba0ef43cc14a2645f5a5cd