[INFO] fetching crate tabled_derive 0.11.0...
[INFO] checking tabled_derive-0.11.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate tabled_derive 0.11.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate tabled_derive 0.11.0
[INFO] finished tweaking crates.io crate tabled_derive 0.11.0
[INFO] tweaked toml for crates.io crate tabled_derive 0.11.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tabled_derive 0.11.0 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 tabled_derive 0.11.0 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-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] fdb96ffe104628a7639a1437b06bc5c9ca9f243a06eb1f1f6d8dc964c0d6100d
[INFO] running `Command { std: "docker" "start" "-a" "fdb96ffe104628a7639a1437b06bc5c9ca9f243a06eb1f1f6d8dc964c0d6100d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdb96ffe104628a7639a1437b06bc5c9ca9f243a06eb1f1f6d8dc964c0d6100d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdb96ffe104628a7639a1437b06bc5c9ca9f243a06eb1f1f6d8dc964c0d6100d", kill_on_drop: false }`
[INFO] [stdout] fdb96ffe104628a7639a1437b06bc5c9ca9f243a06eb1f1f6d8dc964c0d6100d
[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] 13e1c372ddd1a6f67831588da8d4298a4cc4f67038a90aac46f6fd03bce8a18f
[INFO] running `Command { std: "docker" "start" "-a" "13e1c372ddd1a6f67831588da8d4298a4cc4f67038a90aac46f6fd03bce8a18f", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]     Checking heck v0.5.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking proc-macro2 v1.0.94
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]     Checking syn v2.0.100
[INFO] [stderr]     Checking proc-macro-error2 v2.0.1
[INFO] [stderr]     Checking tabled_derive v0.11.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `tabled_derive` (lib test) due to 4 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<TypeAttributes, !>
[INFO] [stdout]   --> src/lib.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 |       let attrs = TypeAttributes::parse(&ast.attrs)
[INFO] [stdout]    |  _________________^
[INFO] [stdout] 40 | |         .map_err(error::abort)
[INFO] [stdout]    | |______________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[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: Result<ExprPath, !>
[INFO] [stdout]   --> src/lib.rs:43:29
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let tabled_trait_path = get_crate_name_expr(&attrs).map_err(error::abort).unwrap();
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tabled_derive` (lib) due to 4 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<proc_macro2::TokenStream, !>
[INFO] [stdout]   --> src/lib.rs:45:18
[INFO] [stdout]    |
[INFO] [stdout] 45 |       let length = get_tabled_length(ast, &attrs, &tabled_trait_path)
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 46 | |         .map_err(error::abort)
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Impl, !>
[INFO] [stdout]   --> src/lib.rs:48:16
[INFO] [stdout]    |
[INFO] [stdout] 48 |       let info = collect_info(ast, &attrs, &tabled_trait_path)
[INFO] [stdout]    |  ________________^
[INFO] [stdout] 49 | |         .map_err(error::abort)
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<TypeAttributes, !>
[INFO] [stdout]   --> src/lib.rs:39:17
[INFO] [stdout]    |
[INFO] [stdout] 39 |       let attrs = TypeAttributes::parse(&ast.attrs)
[INFO] [stdout]    |  _________________^
[INFO] [stdout] 40 | |         .map_err(error::abort)
[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<ExprPath, !>
[INFO] [stdout]   --> src/lib.rs:43:29
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let tabled_trait_path = get_crate_name_expr(&attrs).map_err(error::abort).unwrap();
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<proc_macro2::TokenStream, !>
[INFO] [stdout]   --> src/lib.rs:45:18
[INFO] [stdout]    |
[INFO] [stdout] 45 |       let length = get_tabled_length(ast, &attrs, &tabled_trait_path)
[INFO] [stdout]    |  __________________^
[INFO] [stdout] 46 | |         .map_err(error::abort)
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Impl, !>
[INFO] [stdout]   --> src/lib.rs:48:16
[INFO] [stdout]    |
[INFO] [stdout] 48 |       let info = collect_info(ast, &attrs, &tabled_trait_path)
[INFO] [stdout]    |  ________________^
[INFO] [stdout] 49 | |         .map_err(error::abort)
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "13e1c372ddd1a6f67831588da8d4298a4cc4f67038a90aac46f6fd03bce8a18f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13e1c372ddd1a6f67831588da8d4298a4cc4f67038a90aac46f6fd03bce8a18f", kill_on_drop: false }`
[INFO] [stdout] 13e1c372ddd1a6f67831588da8d4298a4cc4f67038a90aac46f6fd03bce8a18f
