[INFO] fetching crate diced-py 0.1.2...
[INFO] checking diced-py-0.1.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate diced-py 0.1.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate diced-py 0.1.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate diced-py 0.1.2
[INFO] tweaked toml for crates.io crate diced-py 0.1.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate diced-py 0.1.2 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 23 packages to latest compatible versions
[INFO] [stderr]       Adding pyo3 v0.22.6 (available: v0.27.1)
[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-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_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] 7ba09a5ec15b7b396b6cd335bf9e2a6192daa4564ba8a37495516705b7093ff0
[INFO] running `Command { std: "docker" "start" "-a" "7ba09a5ec15b7b396b6cd335bf9e2a6192daa4564ba8a37495516705b7093ff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ba09a5ec15b7b396b6cd335bf9e2a6192daa4564ba8a37495516705b7093ff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ba09a5ec15b7b396b6cd335bf9e2a6192daa4564ba8a37495516705b7093ff0", kill_on_drop: false }`
[INFO] [stdout] 7ba09a5ec15b7b396b6cd335bf9e2a6192daa4564ba8a37495516705b7093ff0
[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=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] ab99c74228f6ca027214c87a50edecc5479379a5e021c3b4907290612d007914
[INFO] running `Command { std: "docker" "start" "-a" "ab99c74228f6ca027214c87a50edecc5479379a5e021c3b4907290612d007914", kill_on_drop: false }`
[INFO] [stderr]     Checking unindent v0.2.4
[INFO] [stderr]    Compiling indoc v2.0.7
[INFO] [stderr]    Compiling pyo3-build-config v0.22.6
[INFO] [stderr]     Checking diced v0.1.2
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling pyo3-ffi v0.22.6
[INFO] [stderr]    Compiling pyo3-macros-backend v0.22.6
[INFO] [stderr]    Compiling pyo3 v0.22.6
[INFO] [stderr]    Compiling pyo3-macros v0.22.6
[INFO] [stderr]     Checking diced-py v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<pyo3::Py<Crispr>, Infallible>
[INFO] [stdout]    --> diced/lib.rs:197:25
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn repeats(slf: Py<Self>) -> Repeats {
[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<pyo3::Py<Crispr>, Infallible>
[INFO] [stdout]    --> diced/lib.rs:203:25
[INFO] [stdout]     |
[INFO] [stdout] 203 |     pub fn spacers(slf: Py<Self>) -> Spacers {
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `diced-py` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<pyo3::Py<Crispr>, Infallible>
[INFO] [stdout]    --> diced/lib.rs:197:25
[INFO] [stdout]     |
[INFO] [stdout] 197 |     pub fn repeats(slf: Py<Self>) -> Repeats {
[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<pyo3::Py<Crispr>, Infallible>
[INFO] [stdout]    --> diced/lib.rs:203:25
[INFO] [stdout]     |
[INFO] [stdout] 203 |     pub fn spacers(slf: Py<Self>) -> Spacers {
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `diced-py` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "ab99c74228f6ca027214c87a50edecc5479379a5e021c3b4907290612d007914", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab99c74228f6ca027214c87a50edecc5479379a5e021c3b4907290612d007914", kill_on_drop: false }`
[INFO] [stdout] ab99c74228f6ca027214c87a50edecc5479379a5e021c3b4907290612d007914