[INFO] fetching crate futures-finally 0.1.0-alpha.2...
[INFO] checking futures-finally-0.1.0-alpha.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate futures-finally 0.1.0-alpha.2 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate futures-finally 0.1.0-alpha.2
[INFO] finished tweaking crates.io crate futures-finally 0.1.0-alpha.2
[INFO] tweaked toml for crates.io crate futures-finally 0.1.0-alpha.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate futures-finally 0.1.0-alpha.2 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 19 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 94893ee7b867ea95dd6f60232fdecb80f9b66da378c1e1a8cf3b38e561f8c7e9
[INFO] running `Command { std: "docker" "start" "-a" "94893ee7b867ea95dd6f60232fdecb80f9b66da378c1e1a8cf3b38e561f8c7e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94893ee7b867ea95dd6f60232fdecb80f9b66da378c1e1a8cf3b38e561f8c7e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94893ee7b867ea95dd6f60232fdecb80f9b66da378c1e1a8cf3b38e561f8c7e9", kill_on_drop: false }`
[INFO] [stdout] 94893ee7b867ea95dd6f60232fdecb80f9b66da378c1e1a8cf3b38e561f8c7e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 393999ab3efc51fa19d25e198f589b18c200c6a2253332b78bb43645a531adfa
[INFO] running `Command { std: "docker" "start" "-a" "393999ab3efc51fa19d25e198f589b18c200c6a2253332b78bb43645a531adfa", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking pin-project v1.1.10
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking futures-finally v0.1.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]    --> src/lib.rs:295:13
[INFO] [stdout]     |
[INFO] [stdout] 295 | /             futures::future::ok::<_, Infallible>(0)
[INFO] [stdout] 296 | |                 .then_try_finally(|| async {
[INFO] [stdout] 297 | |                     val = 1;
[INFO] [stdout] 298 | |                 })
[INFO] [stdout] 299 | |                 .await
[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]    --> src/lib.rs:299:18
[INFO] [stdout]     |
[INFO] [stdout] 299 |                 .await
[INFO] [stdout]     |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]    --> src/lib.rs:295:13
[INFO] [stdout]     |
[INFO] [stdout] 295 | /             futures::future::ok::<_, Infallible>(0)
[INFO] [stdout] 296 | |                 .then_try_finally(|| async {
[INFO] [stdout] 297 | |                     val = 1;
[INFO] [stdout] 298 | |                 })
[INFO] [stdout] 299 | |                 .await
[INFO] [stdout]     | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]    --> src/lib.rs:336:45
[INFO] [stdout]     |
[INFO] [stdout] 336 |                 futures::stream::once(async { Ok::<_, Infallible>(0) }).try_finally(|| async {
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i32, Infallible>
[INFO] [stdout]    --> src/lib.rs:336:47
[INFO] [stdout]     |
[INFO] [stdout] 336 |                 futures::stream::once(async { Ok::<_, Infallible>(0) }).try_finally(|| async {
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Option<i32>, Infallible>
[INFO] [stdout]    --> src/lib.rs:342:37
[INFO] [stdout]     |
[INFO] [stdout] 342 |             while let Ok(Some(v)) = st.try_next().await {
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Option<i32>, Infallible>
[INFO] [stdout]    --> src/lib.rs:342:51
[INFO] [stdout]     |
[INFO] [stdout] 342 |             while let Ok(Some(v)) = st.try_next().await {
[INFO] [stdout]     |                                                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Option<i32>, Infallible>
[INFO] [stdout]    --> src/lib.rs:342:37
[INFO] [stdout]     |
[INFO] [stdout] 342 |             while let Ok(Some(v)) = st.try_next().await {
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-finally` (lib test) due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "393999ab3efc51fa19d25e198f589b18c200c6a2253332b78bb43645a531adfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "393999ab3efc51fa19d25e198f589b18c200c6a2253332b78bb43645a531adfa", kill_on_drop: false }`
[INFO] [stdout] 393999ab3efc51fa19d25e198f589b18c200c6a2253332b78bb43645a531adfa
