[INFO] fetching crate build-deftly 0.1.0...
[INFO] checking build-deftly-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate build-deftly 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate build-deftly 0.1.0
[INFO] finished tweaking crates.io crate build-deftly 0.1.0
[INFO] tweaked toml for crates.io crate build-deftly 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate build-deftly 0.1.0 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 36 packages to latest compatible versions
[INFO] [stderr]       Adding derive-deftly v0.10.5 (available: v1.5.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[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-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] 9892850d7738dc1c5c07f46fbbe61d0fe89da978d787e5cbdc4755ac9ff8f3ed
[INFO] running `Command { std: "docker" "start" "-a" "9892850d7738dc1c5c07f46fbbe61d0fe89da978d787e5cbdc4755ac9ff8f3ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9892850d7738dc1c5c07f46fbbe61d0fe89da978d787e5cbdc4755ac9ff8f3ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9892850d7738dc1c5c07f46fbbe61d0fe89da978d787e5cbdc4755ac9ff8f3ed", kill_on_drop: false }`
[INFO] [stdout] 9892850d7738dc1c5c07f46fbbe61d0fe89da978d787e5cbdc4755ac9ff8f3ed
[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] bea1cb3343adc1de32399bd0dc70eddbc9339c798d2830b86202cd0a917c9c9e
[INFO] running `Command { std: "docker" "start" "-a" "bea1cb3343adc1de32399bd0dc70eddbc9339c798d2830b86202cd0a917c9c9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.19.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling rustversion v1.0.22
[INFO] [stderr]    Compiling winnow v0.7.13
[INFO] [stderr]    Compiling hashbrown v0.16.0
[INFO] [stderr]    Compiling equivalent v1.0.2
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling toml_datetime v0.7.3
[INFO] [stderr]    Compiling derive-deftly-macros v0.10.5
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling keccak v0.1.5
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling indexmap v2.12.0
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.7
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling toml_parser v1.0.4
[INFO] [stderr]    Compiling sha3 v0.10.8
[INFO] [stderr]    Compiling toml_edit v0.23.7
[INFO] [stderr]    Compiling proc-macro-crate v3.4.0
[INFO] [stderr]    Compiling strum_macros v0.26.4
[INFO] [stderr]    Compiling strum v0.26.3
[INFO] [stderr]     Checking derive-deftly v0.10.5
[INFO] [stderr]     Checking build-deftly v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<&mut into_on_setter::SmallBuilder, Infallible>
[INFO] [stdout]   --> tests/cvt.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |       let s = SmallBuilder::new()
[INFO] [stdout]    |  _____________^
[INFO] [stdout] 16 | |         .hello("123") // a &'static str
[INFO] [stdout] 17 | |         .world(123_u8)
[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<&mut into_and_strip_option::SmallBuilder, Infallible>
[INFO] [stdout]   --> tests/cvt.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |       let s = SmallBuilder::new()
[INFO] [stdout]    |  _____________^
[INFO] [stdout] 70 | |         .hello("123") // a &'static str
[INFO] [stdout] 71 | |         .world(123_u8)
[INFO] [stdout]    | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `build-deftly` (test "cvt") 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<&mut cvt_messy::into_on_setter::SmallBuilder, Infallible>
[INFO] [stdout]   --> tests/./cvt.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 15 |       let s = SmallBuilder::new()
[INFO] [stdout]    |  _____________^
[INFO] [stdout] 16 | |         .hello("123") // a &'static str
[INFO] [stdout] 17 | |         .world(123_u8)
[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<&mut cvt_messy::into_and_strip_option::SmallBuilder, Infallible>
[INFO] [stdout]   --> tests/./cvt.rs:69:13
[INFO] [stdout]    |
[INFO] [stdout] 69 |       let s = SmallBuilder::new()
[INFO] [stdout]    |  _____________^
[INFO] [stdout] 70 | |         .hello("123") // a &'static str
[INFO] [stdout] 71 | |         .world(123_u8)
[INFO] [stdout]    | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `build-deftly` (test "messy_prelude") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "bea1cb3343adc1de32399bd0dc70eddbc9339c798d2830b86202cd0a917c9c9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bea1cb3343adc1de32399bd0dc70eddbc9339c798d2830b86202cd0a917c9c9e", kill_on_drop: false }`
[INFO] [stdout] bea1cb3343adc1de32399bd0dc70eddbc9339c798d2830b86202cd0a917c9c9e