[INFO] fetching crate structured-map 0.1.5...
[INFO] checking structured-map-0.1.5 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate structured-map 0.1.5 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate structured-map 0.1.5
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate structured-map 0.1.5
[INFO] tweaked toml for crates.io crate structured-map 0.1.5 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate structured-map 0.1.5 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]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] ddc2979120f9b81ec08fbb1b60144d1d969a6d176615227edb1ec5355084e784
[INFO] running `Command { std: "docker" "start" "-a" "ddc2979120f9b81ec08fbb1b60144d1d969a6d176615227edb1ec5355084e784", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ddc2979120f9b81ec08fbb1b60144d1d969a6d176615227edb1ec5355084e784", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddc2979120f9b81ec08fbb1b60144d1d969a6d176615227edb1ec5355084e784", kill_on_drop: false }`
[INFO] [stdout] ddc2979120f9b81ec08fbb1b60144d1d969a6d176615227edb1ec5355084e784
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2be3f30edb918f610e177f61b07f3c49129d66e440b14eb48b5c6aa835f76953
[INFO] running `Command { std: "docker" "start" "-a" "2be3f30edb918f610e177f61b07f3c49129d66e440b14eb48b5c6aa835f76953", kill_on_drop: false }`
[INFO] [stderr]    Compiling structured-map v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<MyStruct<i32>, Infallible>
[INFO] [stdout]    --> tests/lib.rs:240:21
[INFO] [stdout]     |
[INFO] [stdout] 240 |       let structure = MyStruct::try_from_fn(|key| match key {
[INFO] [stdout]     |  _____________________^
[INFO] [stdout] 241 | |         Key1 => Result::<_, std::convert::Infallible>::Ok(1),
[INFO] [stdout] 242 | |         Key2 => Result::<_, std::convert::Infallible>::Ok(2),
[INFO] [stdout] 243 | |         Key3 => Result::<_, std::convert::Infallible>::Ok(3),
[INFO] [stdout] 244 | |     });
[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<i32, Infallible>
[INFO] [stdout]    --> tests/lib.rs:240:49
[INFO] [stdout]     |
[INFO] [stdout] 240 |       let structure = MyStruct::try_from_fn(|key| match key {
[INFO] [stdout]     |  _________________________________________________^
[INFO] [stdout] 241 | |         Key1 => Result::<_, std::convert::Infallible>::Ok(1),
[INFO] [stdout] 242 | |         Key2 => Result::<_, std::convert::Infallible>::Ok(2),
[INFO] [stdout] 243 | |         Key3 => Result::<_, std::convert::Infallible>::Ok(3),
[INFO] [stdout] 244 | |     });
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]    --> tests/lib.rs:241:17
[INFO] [stdout]     |
[INFO] [stdout] 241 |         Key1 => Result::<_, std::convert::Infallible>::Ok(1),
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]    --> tests/lib.rs:242:17
[INFO] [stdout]     |
[INFO] [stdout] 242 |         Key2 => Result::<_, std::convert::Infallible>::Ok(2),
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]    --> tests/lib.rs:243:17
[INFO] [stdout]     |
[INFO] [stdout] 243 |         Key3 => Result::<_, std::convert::Infallible>::Ok(3),
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<MyStruct<i32>, Infallible>
[INFO] [stdout]    --> tests/lib.rs:247:16
[INFO] [stdout]     |
[INFO] [stdout] 247 |     assert_eq!(structure.unwrap(), expected_structure);
[INFO] [stdout]     |                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `structured-map` (test "lib") due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "2be3f30edb918f610e177f61b07f3c49129d66e440b14eb48b5c6aa835f76953", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2be3f30edb918f610e177f61b07f3c49129d66e440b14eb48b5c6aa835f76953", kill_on_drop: false }`
[INFO] [stdout] 2be3f30edb918f610e177f61b07f3c49129d66e440b14eb48b5c6aa835f76953