[INFO] fetching crate cast_checks 0.1.6...
[INFO] checking cast_checks-0.1.6 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate cast_checks 0.1.6 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate cast_checks 0.1.6
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate cast_checks 0.1.6
[INFO] tweaked toml for crates.io crate cast_checks 0.1.6 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cast_checks 0.1.6 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 cast_checks 0.1.6 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] [stderr]     Blocking waiting for file lock on package cache
[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] 456fde376069f8a914dd818e7a50e934b6efe25bb69e12fcebe7ef758a7f3133
[INFO] running `Command { std: "docker" "start" "-a" "456fde376069f8a914dd818e7a50e934b6efe25bb69e12fcebe7ef758a7f3133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "456fde376069f8a914dd818e7a50e934b6efe25bb69e12fcebe7ef758a7f3133", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "456fde376069f8a914dd818e7a50e934b6efe25bb69e12fcebe7ef758a7f3133", kill_on_drop: false }`
[INFO] [stdout] 456fde376069f8a914dd818e7a50e934b6efe25bb69e12fcebe7ef758a7f3133
[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] 7d5af1d7ed3d53c41dfdba98d136eaaafd3075f68df2dd0f8ab894c22bbca995
[INFO] running `Command { std: "docker" "start" "-a" "7d5af1d7ed3d53c41dfdba98d136eaaafd3075f68df2dd0f8ab894c22bbca995", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]     Checking predicates-core v1.0.9
[INFO] [stderr]    Compiling rustix v1.0.5
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling cast_checks_macro v0.1.6
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]     Checking linux-raw-sys v0.9.4
[INFO] [stderr]    Compiling assert_cmd v2.0.17
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking termtree v0.5.1
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking bitflags v2.9.0
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]    Compiling dtor-proc-macro v0.0.5
[INFO] [stderr]     Checking cast_checks_convert v0.1.6
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]    Compiling ctor-proc-macro v0.0.5
[INFO] [stderr]     Checking predicates-tree v1.0.12
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking dtor v0.0.5
[INFO] [stderr]     Checking ctor v0.4.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking wait-timeout v0.2.1
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking float-cmp v0.10.0
[INFO] [stderr]     Checking tempfile v3.19.1
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking bstr v1.12.0
[INFO] [stderr]     Checking predicates v3.1.3
[INFO] [stderr]     Checking cast_checks v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<*const char, Infallible>
[INFO] [stdout]   --> tests/basic.rs:56:13
[INFO] [stdout]    |
[INFO] [stdout] 56 |     let a = 300 as *const char; // `a` is a pointer to location 300.
[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<u32, Infallible>
[INFO] [stdout]   --> tests/basic.rs:57:13
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let _ = a as u32;
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]   --> tests/basic.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let _ = 1f32 as i32;
[INFO] [stdout]    |             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]   --> tests/basic.rs:64:13
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let _ = 1f64 as i32;
[INFO] [stdout]    |             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<f64, Infallible>
[INFO] [stdout]   --> tests/basic.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     x as f64 / 2.0
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]   --> tests/basic.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 |         (-1 * i32::MIN) as i64
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]   --> tests/basic.rs:85:14
[INFO] [stdout]    |
[INFO] [stdout] 85 |         -1 * i32::MIN as i64
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cast_checks` (test "basic") due to 7 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "7d5af1d7ed3d53c41dfdba98d136eaaafd3075f68df2dd0f8ab894c22bbca995", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d5af1d7ed3d53c41dfdba98d136eaaafd3075f68df2dd0f8ab894c22bbca995", kill_on_drop: false }`
[INFO] [stdout] 7d5af1d7ed3d53c41dfdba98d136eaaafd3075f68df2dd0f8ab894c22bbca995
