[INFO] fetching crate js-promises 0.1.0...
[INFO] checking js-promises-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate js-promises 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate js-promises 0.1.0
[INFO] finished tweaking crates.io crate js-promises 0.1.0
[INFO] tweaked toml for crates.io crate js-promises 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate js-promises 0.1.0 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 js-promises 0.1.0 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-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] b0e341572dc6efeb9999c595f36c462d45d474720f7e1c65f93d22d4fa718dba
[INFO] running `Command { std: "docker" "start" "-a" "b0e341572dc6efeb9999c595f36c462d45d474720f7e1c65f93d22d4fa718dba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0e341572dc6efeb9999c595f36c462d45d474720f7e1c65f93d22d4fa718dba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0e341572dc6efeb9999c595f36c462d45d474720f7e1c65f93d22d4fa718dba", kill_on_drop: false }`
[INFO] [stdout] b0e341572dc6efeb9999c595f36c462d45d474720f7e1c65f93d22d4fa718dba
[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] c2fae26e1eeb21318993e4ccc0ae1f2e33f077ab3fce184c65c2d5279d49ae5e
[INFO] running `Command { std: "docker" "start" "-a" "c2fae26e1eeb21318993e4ccc0ae1f2e33f077ab3fce184c65c2d5279d49ae5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling stdweb-internal-runtime v0.1.5
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling base-x v0.2.5
[INFO] [stderr]     Checking discard v1.0.4
[INFO] [stderr]    Compiling stdweb v0.4.20
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.9
[INFO] [stderr]    Compiling stdweb-derive v0.5.3
[INFO] [stderr]     Checking js-promises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<PromiseOk<Vec<Result<TOk, TErr>>, Infallible>, Infallible>
[INFO] [stdout]    --> src/lib.rs:365:26
[INFO] [stdout]     |
[INFO] [stdout] 365 |           }).then_to_typed(|res| {
[INFO] [stdout]     |  ________________________________^
[INFO] [stdout] 366 | |             let array = stdweb::Array::try_from(
[INFO] [stdout] 367 | |                 res
[INFO] [stdout] 368 | |                 .expect("Promise from Promise.allSettled was rejected")
[INFO] [stdout] ...   |
[INFO] [stdout] 394 | |         })
[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<PromiseOk<Vec<Result<TOk, TErr>>, Infallible>, Infallible>
[INFO] [stdout]    --> src/lib.rs:375:4
[INFO] [stdout]     |
[INFO] [stdout] 375 | /             Ok(value_vec.into_iter()
[INFO] [stdout] 376 | |                 .map(|val| {
[INFO] [stdout] 377 | |                     let status_val = js!{ return @{val.clone()}.status; };
[INFO] [stdout] 378 | |                     let status = status_val.as_str().expect("Promise.allSettled entry.status was not a string");
[INFO] [stdout] ...   |
[INFO] [stdout] 392 | |                 .into()
[INFO] [stdout] 393 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `js-promises` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<PromiseOk<Vec<Result<TOk, TErr>>, Infallible>, Infallible>
[INFO] [stdout]    --> src/lib.rs:365:26
[INFO] [stdout]     |
[INFO] [stdout] 365 |           }).then_to_typed(|res| {
[INFO] [stdout]     |  ________________________________^
[INFO] [stdout] 366 | |             let array = stdweb::Array::try_from(
[INFO] [stdout] 367 | |                 res
[INFO] [stdout] 368 | |                 .expect("Promise from Promise.allSettled was rejected")
[INFO] [stdout] ...   |
[INFO] [stdout] 394 | |         })
[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<PromiseOk<Vec<Result<TOk, TErr>>, Infallible>, Infallible>
[INFO] [stdout]    --> src/lib.rs:375:4
[INFO] [stdout]     |
[INFO] [stdout] 375 | /             Ok(value_vec.into_iter()
[INFO] [stdout] 376 | |                 .map(|val| {
[INFO] [stdout] 377 | |                     let status_val = js!{ return @{val.clone()}.status; };
[INFO] [stdout] 378 | |                     let status = status_val.as_str().expect("Promise.allSettled entry.status was not a string");
[INFO] [stdout] ...   |
[INFO] [stdout] 392 | |                 .into()
[INFO] [stdout] 393 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `js-promises` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "c2fae26e1eeb21318993e4ccc0ae1f2e33f077ab3fce184c65c2d5279d49ae5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2fae26e1eeb21318993e4ccc0ae1f2e33f077ab3fce184c65c2d5279d49ae5e", kill_on_drop: false }`
[INFO] [stdout] c2fae26e1eeb21318993e4ccc0ae1f2e33f077ab3fce184c65c2d5279d49ae5e
