[INFO] fetching crate inttype-enum 0.2.2...
[INFO] checking inttype-enum-0.2.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate inttype-enum 0.2.2 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate inttype-enum 0.2.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate inttype-enum 0.2.2
[INFO] tweaked toml for crates.io crate inttype-enum 0.2.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate inttype-enum 0.2.2 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] crate crates.io crate inttype-enum 0.2.2 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 49b00db2724f47166d0c5d6f891228a0b5df5bf84b3acf80200b69588822afc6
[INFO] running `Command { std: "docker" "start" "-a" "49b00db2724f47166d0c5d6f891228a0b5df5bf84b3acf80200b69588822afc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49b00db2724f47166d0c5d6f891228a0b5df5bf84b3acf80200b69588822afc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49b00db2724f47166d0c5d6f891228a0b5df5bf84b3acf80200b69588822afc6", kill_on_drop: false }`
[INFO] [stdout] 49b00db2724f47166d0c5d6f891228a0b5df5bf84b3acf80200b69588822afc6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] b6d2228ff980468f11939ced65ef998fad1694651e3fab3a8ee83fa2c5b40bb8
[INFO] running `Command { std: "docker" "start" "-a" "b6d2228ff980468f11939ced65ef998fad1694651e3fab3a8ee83fa2c5b40bb8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]     Checking unicode-ident v1.0.9
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking syn v2.0.104
[INFO] [stderr]     Checking inttype-enum v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Test2, Infallible>
[INFO] [stdout]   --> tests/test.rs:48:16
[INFO] [stdout]    |
[INFO] [stdout] 48 |     assert_eq!(Test2::try_from(16), Ok(Test2::C(16)));
[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<Test2, Infallible>
[INFO] [stdout]   --> tests/test.rs:48:37
[INFO] [stdout]    |
[INFO] [stdout] 48 |     assert_eq!(Test2::try_from(16), Ok(Test2::C(16)));
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Test2, Infallible>
[INFO] [stdout]   --> tests/test.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     assert_eq!(Test2::try_from(16), Ok(Test2::C(16)));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (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<Test2, Infallible>
[INFO] [stdout]   --> tests/test.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     assert_eq!(Test2::try_from(16), Ok(Test2::C(16)));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (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<Test2, Infallible>
[INFO] [stdout]   --> tests/test.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     assert_eq!(Test2::try_from(16), Ok(Test2::C(16)));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (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<Test2, Infallible>
[INFO] [stdout]   --> tests/test.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     assert_eq!(Test2::try_from(16), Ok(Test2::C(16)));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `inttype-enum` (test "test") due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "b6d2228ff980468f11939ced65ef998fad1694651e3fab3a8ee83fa2c5b40bb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6d2228ff980468f11939ced65ef998fad1694651e3fab3a8ee83fa2c5b40bb8", kill_on_drop: false }`
[INFO] [stdout] b6d2228ff980468f11939ced65ef998fad1694651e3fab3a8ee83fa2c5b40bb8