[INFO] fetching crate testresult 0.4.1...
[INFO] checking testresult-0.4.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate testresult 0.4.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate testresult 0.4.1
[INFO] finished tweaking crates.io crate testresult 0.4.1
[INFO] tweaked toml for crates.io crate testresult 0.4.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate testresult 0.4.1 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] 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 40 packages to latest compatible versions
[INFO] [stderr]       Adding rstest v0.21.0 (available: v0.26.1)
[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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] d56e9abe37075f686c1f1bd3f368348f23d530a51be374c1d47bc7f8725bae8b
[INFO] running `Command { std: "docker" "start" "-a" "d56e9abe37075f686c1f1bd3f368348f23d530a51be374c1d47bc7f8725bae8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d56e9abe37075f686c1f1bd3f368348f23d530a51be374c1d47bc7f8725bae8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d56e9abe37075f686c1f1bd3f368348f23d530a51be374c1d47bc7f8725bae8b", kill_on_drop: false }`
[INFO] [stdout] d56e9abe37075f686c1f1bd3f368348f23d530a51be374c1d47bc7f8725bae8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 7fae78d7b89e9ff511f69667eaca0833d809f96abfbd7c6e9cb990dee70fc1a4
[INFO] running `Command { std: "docker" "start" "-a" "7fae78d7b89e9ff511f69667eaca0833d809f96abfbd7c6e9cb990dee70fc1a4", kill_on_drop: false }`
[INFO] [stderr]    Compiling relative-path v1.9.3
[INFO] [stderr]     Checking futures-timer v3.0.3
[INFO] [stderr]     Checking testresult v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling rstest_macros v0.21.0
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking rstest v0.21.0
[INFO] [stdout] error: this type will no longer be must used: Result<String, TestError>
[INFO] [stdout]   --> src/lib.rs:93:40
[INFO] [stdout]    |
[INFO] [stdout] 93 |       fn test_fn() -> TestResult<String> {
[INFO] [stdout]    |  ________________________________________^
[INFO] [stdout] 94 | |         let string = String::from_utf8(vec![0, 159, 146, 150])?;
[INFO] [stdout] 95 | |         Ok(string)
[INFO] [stdout] 96 | |     }
[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<String, TestError>
[INFO] [stdout]   --> src/lib.rs:94:22
[INFO] [stdout]    |
[INFO] [stdout] 94 |         let string = String::from_utf8(vec![0, 159, 146, 150])?;
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, TestError>
[INFO] [stdout]   --> src/lib.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |         Ok(string)
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, TestError>
[INFO] [stdout]    --> src/lib.rs:101:21
[INFO] [stdout]     |
[INFO] [stdout] 101 |             let _ = test_fn();
[INFO] [stdout]     |                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, TestError>
[INFO] [stdout]    --> src/lib.rs:126:41
[INFO] [stdout]     |
[INFO] [stdout] 126 |       fn anyhow_c() -> TestResult<String> {
[INFO] [stdout]     |  _________________________________________^
[INFO] [stdout] 127 | |         let file = anyhow_b()?;
[INFO] [stdout] 128 | |         Ok(file)
[INFO] [stdout] 129 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, TestError>
[INFO] [stdout]    --> src/lib.rs:127:20
[INFO] [stdout]     |
[INFO] [stdout] 127 |         let file = anyhow_b()?;
[INFO] [stdout]     |                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, TestError>
[INFO] [stdout]    --> src/lib.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |         Ok(file)
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, TestError>
[INFO] [stdout]    --> src/lib.rs:134:21
[INFO] [stdout]     |
[INFO] [stdout] 134 |             let _ = anyhow_c();
[INFO] [stdout]     |                     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `testresult` (lib test) due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "7fae78d7b89e9ff511f69667eaca0833d809f96abfbd7c6e9cb990dee70fc1a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fae78d7b89e9ff511f69667eaca0833d809f96abfbd7c6e9cb990dee70fc1a4", kill_on_drop: false }`
[INFO] [stdout] 7fae78d7b89e9ff511f69667eaca0833d809f96abfbd7c6e9cb990dee70fc1a4
