[INFO] fetching crate no-std-net 0.6.0... [INFO] checking no-std-net-0.6.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate no-std-net 0.6.0 into /workspace/builds/worker-0-tc2/source [INFO] started tweaking crates.io crate no-std-net 0.6.0 [INFO] finished tweaking crates.io crate no-std-net 0.6.0 [INFO] tweaked toml for crates.io crate no-std-net 0.6.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate no-std-net 0.6.0 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] 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 8 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] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 23c8b999d2b770c669fb22aa95139ad6b2d13496a7ec214bde7237ec58b8dfd4 [INFO] running `Command { std: "docker" "start" "-a" "23c8b999d2b770c669fb22aa95139ad6b2d13496a7ec214bde7237ec58b8dfd4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "23c8b999d2b770c669fb22aa95139ad6b2d13496a7ec214bde7237ec58b8dfd4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "23c8b999d2b770c669fb22aa95139ad6b2d13496a7ec214bde7237ec58b8dfd4", kill_on_drop: false }` [INFO] [stdout] 23c8b999d2b770c669fb22aa95139ad6b2d13496a7ec214bde7237ec58b8dfd4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 2a923cf2b4abb9218f5f59b577520dca2e70a87c445f5987ee5c3e1b5da90544 [INFO] running `Command { std: "docker" "start" "-a" "2a923cf2b4abb9218f5f59b577520dca2e70a87c445f5987ee5c3e1b5da90544", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Checking no-std-net v0.6.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result, ToSocketAddrError> [INFO] [stdout] --> src/addr.rs:749:90 [INFO] [stdout] | [INFO] [stdout] 749 | fn to_socket_addrs(&self) -> Result, ToSocketAddrError> { [INFO] [stdout] | __________________________________________________________________________________________^ [INFO] [stdout] 750 | | Ok(Some(*self).into_iter()) [INFO] [stdout] 751 | | } [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, ToSocketAddrError> [INFO] [stdout] --> src/addr.rs:750:9 [INFO] [stdout] | [INFO] [stdout] 750 | Ok(Some(*self).into_iter()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, ToSocketAddrError> [INFO] [stdout] --> src/addr.rs:756:90 [INFO] [stdout] | [INFO] [stdout] 756 | fn to_socket_addrs(&self) -> Result, ToSocketAddrError> { [INFO] [stdout] | __________________________________________________________________________________________^ [INFO] [stdout] 757 | | SocketAddr::V4(*self).to_socket_addrs() [INFO] [stdout] 758 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, ToSocketAddrError> [INFO] [stdout] --> src/addr.rs:757:9 [INFO] [stdout] | [INFO] [stdout] 757 | SocketAddr::V4(*self).to_socket_addrs() [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, ToSocketAddrError> [INFO] [stdout] --> src/addr.rs:763:90 [INFO] [stdout] | [INFO] [stdout] 763 | fn to_socket_addrs(&self) -> Result, ToSocketAddrError> { [INFO] [stdout] | __________________________________________________________________________________________^ [INFO] [stdout] 764 | | SocketAddr::V6(*self).to_socket_addrs() [INFO] [stdout] 765 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, ToSocketAddrError> [INFO] [stdout] --> src/addr.rs:764:9 [INFO] [stdout] | [INFO] [stdout] 764 | SocketAddr::V6(*self).to_socket_addrs() [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, ToSocketAddrError> [INFO] [stdout] --> src/addr.rs:770:90 [INFO] [stdout] | [INFO] [stdout] 770 | fn to_socket_addrs(&self) -> Result, ToSocketAddrError> { [INFO] [stdout] | __________________________________________________________________________________________^ [INFO] [stdout] 771 | | let (ip, port) = *self; [INFO] [stdout] 772 | | match ip { [INFO] [stdout] 773 | | IpAddr::V4(ref a) => (*a, port).to_socket_addrs(), [INFO] [stdout] ... | [INFO] [stdout] 776 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, ToSocketAddrError> [INFO] [stdout] --> src/addr.rs:772:9 [INFO] [stdout] | [INFO] [stdout] 772 | / match ip { [INFO] [stdout] 773 | | IpAddr::V4(ref a) => (*a, port).to_socket_addrs(), [INFO] [stdout] 774 | | IpAddr::V6(ref a) => (*a, port).to_socket_addrs(), [INFO] [stdout] 775 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, ToSocketAddrError> [INFO] [stdout] --> src/addr.rs:773:34 [INFO] [stdout] | [INFO] [stdout] 773 | IpAddr::V4(ref a) => (*a, port).to_socket_addrs(), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, ToSocketAddrError> [INFO] [stdout] --> src/addr.rs:774:34 [INFO] [stdout] | [INFO] [stdout] 774 | IpAddr::V6(ref a) => (*a, port).to_socket_addrs(), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, ToSocketAddrError> [INFO] [stdout] --> src/addr.rs:781:90 [INFO] [stdout] | [INFO] [stdout] 781 | fn to_socket_addrs(&self) -> Result, ToSocketAddrError> { [INFO] [stdout] | __________________________________________________________________________________________^ [INFO] [stdout] 782 | | let (ip, port) = *self; [INFO] [stdout] 783 | | SocketAddrV4::new(ip, port).to_socket_addrs() [INFO] [stdout] 784 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, ToSocketAddrError> [INFO] [stdout] --> src/addr.rs:783:9 [INFO] [stdout] | [INFO] [stdout] 783 | SocketAddrV4::new(ip, port).to_socket_addrs() [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, ToSocketAddrError> [INFO] [stdout] --> src/addr.rs:789:90 [INFO] [stdout] | [INFO] [stdout] 789 | fn to_socket_addrs(&self) -> Result, ToSocketAddrError> { [INFO] [stdout] | __________________________________________________________________________________________^ [INFO] [stdout] 790 | | let (ip, port) = *self; [INFO] [stdout] 791 | | SocketAddrV6::new(ip, port, 0, 0).to_socket_addrs() [INFO] [stdout] 792 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, ToSocketAddrError> [INFO] [stdout] --> src/addr.rs:791:9 [INFO] [stdout] | [INFO] [stdout] 791 | SocketAddrV6::new(ip, port, 0, 0).to_socket_addrs() [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type continue be must used: Result>, ToSocketAddrError> [INFO] [stdout] --> src/addr.rs:798:72 [INFO] [stdout] | [INFO] [stdout] 798 | fn to_socket_addrs(&self) -> Result { [INFO] [stdout] | ________________________________________________________________________^ [INFO] [stdout] 799 | | Ok(self.iter().cloned()) [INFO] [stdout] 800 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:49:5 [INFO] [stdout] | [INFO] [stdout] 49 | warnings [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] = note: `#[deny(mustuse_in_always_ok)]` implied by `#[deny(warnings)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type continue be must used: Result>, ToSocketAddrError> [INFO] [stdout] --> src/addr.rs:799:9 [INFO] [stdout] | [INFO] [stdout] 799 | Ok(self.iter().cloned()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type continue be must used: Result<::Iter, ToSocketAddrError> [INFO] [stdout] --> src/addr.rs:805:69 [INFO] [stdout] | [INFO] [stdout] 805 | fn to_socket_addrs(&self) -> Result { [INFO] [stdout] | _____________________________________________________________________^ [INFO] [stdout] 806 | | (**self).to_socket_addrs() [INFO] [stdout] 807 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type continue be must used: Result<::Iter, ToSocketAddrError> [INFO] [stdout] --> src/addr.rs:806:9 [INFO] [stdout] | [INFO] [stdout] 806 | (**self).to_socket_addrs() [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/parser.rs:30:38 [INFO] [stdout] | [INFO] [stdout] 30 | Self::checked_mul(*self, other.try_into().ok()?) [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | impl_helper! { u8 u16 u32 } [INFO] [stdout] | --------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `impl_helper` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/parser.rs:34:38 [INFO] [stdout] | [INFO] [stdout] 34 | Self::checked_add(*self, other.try_into().ok()?) [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 39 | impl_helper! { u8 u16 u32 } [INFO] [stdout] | --------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `impl_helper` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `no-std-net` (lib) due to 20 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "2a923cf2b4abb9218f5f59b577520dca2e70a87c445f5987ee5c3e1b5da90544", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2a923cf2b4abb9218f5f59b577520dca2e70a87c445f5987ee5c3e1b5da90544", kill_on_drop: false }` [INFO] [stdout] 2a923cf2b4abb9218f5f59b577520dca2e70a87c445f5987ee5c3e1b5da90544