[INFO] fetching crate pyo3-mp 0.1.3...
[INFO] checking pyo3-mp-0.1.3 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate pyo3-mp 0.1.3 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate pyo3-mp 0.1.3
[INFO] finished tweaking crates.io crate pyo3-mp 0.1.3
[INFO] tweaked toml for crates.io crate pyo3-mp 0.1.3 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pyo3-mp 0.1.3 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 35 packages to latest compatible versions
[INFO] [stderr]       Adding bincode v1.3.3 (available: v2.0.1)
[INFO] [stderr]       Adding indoc-impl v0.3.6 (available: v0.3.7)
[INFO] [stderr]       Adding pyo3 v0.12.4 (available: v0.27.1)
[INFO] [stderr]       Adding pyo3-derive-backend v0.12.4 (available: v0.12.5)
[INFO] [stderr]       Adding pyo3cls v0.12.4 (available: v0.12.5)
[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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b3c88042ef7b0f351d5ea087800501dc80065aa232c74fecac1ffbc35e2bcc0b
[INFO] running `Command { std: "docker" "start" "-a" "b3c88042ef7b0f351d5ea087800501dc80065aa232c74fecac1ffbc35e2bcc0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3c88042ef7b0f351d5ea087800501dc80065aa232c74fecac1ffbc35e2bcc0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3c88042ef7b0f351d5ea087800501dc80065aa232c74fecac1ffbc35e2bcc0b", kill_on_drop: false }`
[INFO] [stdout] b3c88042ef7b0f351d5ea087800501dc80065aa232c74fecac1ffbc35e2bcc0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 8fa00934f231a763ae39746515671eb8d279de610ae0b2c715bc542586b13eac
[INFO] running `Command { std: "docker" "start" "-a" "8fa00934f231a763ae39746515671eb8d279de610ae0b2c715bc542586b13eac", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]     Checking instant v0.1.13
[INFO] [stderr]    Compiling inventory v0.1.11
[INFO] [stderr]    Compiling unindent v0.1.11
[INFO] [stderr]    Compiling ghost v0.1.20
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]    Compiling pyo3-derive-backend v0.12.4
[INFO] [stderr]    Compiling inventory-impl v0.1.11
[INFO] [stderr]    Compiling pyo3 v0.12.4
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking indoc v0.3.6
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]    Compiling pyo3cls v0.12.4
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking pyo3-mp v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, PyClassInitializer<Integer>>
[INFO] [stdout]   --> tests/test_class_mut.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[pymethods]
[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 `pyo3-mp` (test "test_class_mut") due to 2 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<PyClassInitializer<Integer>, Infallible>
[INFO] [stdout]   --> tests/test_class_mut.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[pymethods]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `pymethods` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, PyClassInitializer<Integer>>
[INFO] [stdout]   --> tests/test_class.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[pymethods]
[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<PyClassInitializer<Integer>, Infallible>
[INFO] [stdout]   --> tests/test_class.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[pymethods]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the attribute macro `pymethods` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pyo3-mp` (test "test_class") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "8fa00934f231a763ae39746515671eb8d279de610ae0b2c715bc542586b13eac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fa00934f231a763ae39746515671eb8d279de610ae0b2c715bc542586b13eac", kill_on_drop: false }`
[INFO] [stdout] 8fa00934f231a763ae39746515671eb8d279de610ae0b2c715bc542586b13eac
