[INFO] fetching crate wasi_virt_layer-cli 0.1.1...
[INFO] checking wasi_virt_layer-cli-0.1.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate wasi_virt_layer-cli 0.1.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate wasi_virt_layer-cli 0.1.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate wasi_virt_layer-cli 0.1.1
[INFO] tweaked toml for crates.io crate wasi_virt_layer-cli 0.1.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wasi_virt_layer-cli 0.1.1 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 wasi_virt_layer-cli 0.1.1 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-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] eb07119fe97db8b4d13db645dbd33bb2555d2dc14851fc3c6ab1d06d9b25f192
[INFO] running `Command { std: "docker" "start" "-a" "eb07119fe97db8b4d13db645dbd33bb2555d2dc14851fc3c6ab1d06d9b25f192", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb07119fe97db8b4d13db645dbd33bb2555d2dc14851fc3c6ab1d06d9b25f192", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb07119fe97db8b4d13db645dbd33bb2555d2dc14851fc3c6ab1d06d9b25f192", kill_on_drop: false }`
[INFO] [stdout] eb07119fe97db8b4d13db645dbd33bb2555d2dc14851fc3c6ab1d06d9b25f192
[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] 7af8a2044ac0efaa2eb592e5b375a2e2a7037e1fb614aabd889f64a91a0946ae
[INFO] running `Command { std: "docker" "start" "-a" "7af8a2044ac0efaa2eb592e5b375a2e2a7037e1fb614aabd889f64a91a0946ae", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `command`
[INFO] [stdout]  --> src/args.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use clap::{Parser, command};
[INFO] [stdout]   |                    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `WalrusUtilExport as _` and `WalrusUtilImport as _`
[INFO] [stdout]  --> src/generator/special_func.rs:8:48
[INFO] [stdout]   |
[INFO] [stdout] 8 |         NAMESPACE, ResultUtil as _, WalrusFID, WalrusUtilExport as _, WalrusUtilFuncs as _,
[INFO] [stdout]   |                                                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 9 |         WalrusUtilImport as _, WalrusUtilModule as _,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `command`
[INFO] [stdout]  --> src/args.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use clap::{Parser, command};
[INFO] [stdout]   |                    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `WalrusUtilExport as _` and `WalrusUtilImport as _`
[INFO] [stdout]  --> src/generator/special_func.rs:8:48
[INFO] [stdout]   |
[INFO] [stdout] 8 |         NAMESPACE, ResultUtil as _, WalrusFID, WalrusUtilExport as _, WalrusUtilFuncs as _,
[INFO] [stdout]   |                                                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 9 |         WalrusUtilImport as _, WalrusUtilModule as _,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `import_id`
[INFO] [stdout]   --> src/generator/abi_connect.rs:82:29
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 if let Some(import_id) = ("wasi_snapshot_preview1", import)
[INFO] [stdout]    |                             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_import_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `import_id`
[INFO] [stdout]   --> src/generator/abi_connect.rs:82:29
[INFO] [stdout]    |
[INFO] [stdout] 82 |                 if let Some(import_id) = ("wasi_snapshot_preview1", import)
[INFO] [stdout]    |                             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_import_id`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `real_thread_spawn_fn_id`
[INFO] [stdout]    --> src/generator/threads.rs:123:17
[INFO] [stdout]     |
[INFO] [stdout] 123 |             let real_thread_spawn_fn_id = (root, &component_name).get_fid(&module.imports)?;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_real_thread_spawn_fn_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `real_thread_spawn_fn_id`
[INFO] [stdout]    --> src/generator/threads.rs:123:17
[INFO] [stdout]     |
[INFO] [stdout] 123 |             let real_thread_spawn_fn_id = (root, &component_name).get_fid(&module.imports)?;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_real_thread_spawn_fn_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `threads`
[INFO] [stdout]     --> src/generator/mod.rs:1537:5
[INFO] [stdout]      |
[INFO] [stdout] 1537 |     threads: bool,
[INFO] [stdout]      |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_threads`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `threads`
[INFO] [stdout]     --> src/generator/mod.rs:1537:5
[INFO] [stdout]      |
[INFO] [stdout] 1537 |     threads: bool,
[INFO] [stdout]      |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_threads`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Utf8PathBuf, Infallible>
[INFO] [stdout]     --> src/generator/mod.rs:1350:37
[INFO] [stdout]      |
[INFO] [stdout] 1350 |                 let manifest_path = Utf8PathBuf::from_str(split[0])
[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: std::result::Result<Utf8PathBuf, Infallible>
[INFO] [stdout]     --> src/generator/mod.rs:1350:37
[INFO] [stdout]      |
[INFO] [stdout] 1350 |                 let manifest_path = Utf8PathBuf::from_str(split[0])
[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: std::result::Result<Utf8PathBuf, Infallible>
[INFO] [stdout]     --> src/generator/mod.rs:1368:24
[INFO] [stdout]      |
[INFO] [stdout] 1368 |             let path = Utf8PathBuf::from_str(s)
[INFO] [stdout]      |                        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Utf8PathBuf, Infallible>
[INFO] [stdout]     --> src/generator/mod.rs:1374:33
[INFO] [stdout]      |
[INFO] [stdout] 1374 |             let manifest_path = Utf8PathBuf::from_str(s)
[INFO] [stdout]      |                                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Utf8PathBuf, Infallible>
[INFO] [stdout]     --> src/generator/mod.rs:1368:24
[INFO] [stdout]      |
[INFO] [stdout] 1368 |             let path = Utf8PathBuf::from_str(s)
[INFO] [stdout]      |                        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Utf8PathBuf, Infallible>
[INFO] [stdout]     --> src/generator/mod.rs:1374:33
[INFO] [stdout]      |
[INFO] [stdout] 1374 |             let manifest_path = Utf8PathBuf::from_str(s)
[INFO] [stdout]      |                                 ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wasi_virt_layer-cli` (lib test) due to 3 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `wasi_virt_layer-cli` (lib) due to 3 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "7af8a2044ac0efaa2eb592e5b375a2e2a7037e1fb614aabd889f64a91a0946ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7af8a2044ac0efaa2eb592e5b375a2e2a7037e1fb614aabd889f64a91a0946ae", kill_on_drop: false }`
[INFO] [stdout] 7af8a2044ac0efaa2eb592e5b375a2e2a7037e1fb614aabd889f64a91a0946ae