[INFO] fetching crate rusty_enet 0.4.0... [INFO] checking rusty_enet-0.4.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate rusty_enet 0.4.0 into /workspace/builds/worker-2-tc2/source [INFO] removed /workspace/builds/worker-2-tc2/source/rust-toolchain [INFO] started tweaking crates.io crate rusty_enet 0.4.0 [INFO] finished tweaking crates.io crate rusty_enet 0.4.0 [INFO] tweaked toml for crates.io crate rusty_enet 0.4.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate rusty_enet 0.4.0 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 rusty_enet 0.4.0 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-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] 97e7ae253bf754830e7bc66c7e8dffb6da60c9e4bd9be0a20c2926457eb3b447 [INFO] running `Command { std: "docker" "start" "-a" "97e7ae253bf754830e7bc66c7e8dffb6da60c9e4bd9be0a20c2926457eb3b447", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "97e7ae253bf754830e7bc66c7e8dffb6da60c9e4bd9be0a20c2926457eb3b447", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "97e7ae253bf754830e7bc66c7e8dffb6da60c9e4bd9be0a20c2926457eb3b447", kill_on_drop: false }` [INFO] [stdout] 97e7ae253bf754830e7bc66c7e8dffb6da60c9e4bd9be0a20c2926457eb3b447 [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] 3b12d1484facd661f39de8a921b419f685ce24b33cd11d1321d370fa56cab069 [INFO] running `Command { std: "docker" "start" "-a" "3b12d1484facd661f39de8a921b419f685ce24b33cd11d1321d370fa56cab069", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.172 [INFO] [stderr] Compiling getrandom v0.3.2 [INFO] [stderr] Checking rusty_enet v0.4.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `decode_code` is never read [INFO] [stdout] --> src/c/compress.rs:687:21 [INFO] [stdout] | [INFO] [stdout] 687 | decode_code <<= 8_i32; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `decode_code` is never read [INFO] [stdout] --> src/c/compress.rs:691:25 [INFO] [stdout] | [INFO] [stdout] 691 | decode_code |= *fresh20 as u32; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/host.rs:166:25 [INFO] [stdout] | [INFO] [stdout] 166 | pub fn check_events(&mut self) -> Option> { [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 166 | pub fn check_events(&mut self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/host.rs:185:20 [INFO] [stdout] | [INFO] [stdout] 185 | pub fn service(&mut self) -> Result>, S::Error> { [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 185 | pub fn service(&mut self) -> Result>, S::Error> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_core v0.9.3 [INFO] [stderr] Checking rand_chacha v0.9.0 [INFO] [stderr] Checking rand v0.9.1 [INFO] [stdout] warning: value assigned to `decode_code` is never read [INFO] [stdout] --> src/c/compress.rs:687:21 [INFO] [stdout] | [INFO] [stdout] 687 | decode_code <<= 8_i32; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `decode_code` is never read [INFO] [stdout] --> src/c/compress.rs:691:25 [INFO] [stdout] | [INFO] [stdout] 691 | decode_code |= *fresh20 as u32; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/host.rs:166:25 [INFO] [stdout] | [INFO] [stdout] 166 | pub fn check_events(&mut self) -> Option> { [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 166 | pub fn check_events(&mut self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/host.rs:185:20 [INFO] [stdout] | [INFO] [stdout] 185 | pub fn service(&mut self) -> Result>, S::Error> { [INFO] [stdout] | ^^^^^^^^^ ^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 185 | pub fn service(&mut self) -> Result>, S::Error> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/test/network.rs:58:93 [INFO] [stdout] | [INFO] [stdout] 58 | fn send(&mut self, address: Self::Address, buffer: &[u8]) -> Result { [INFO] [stdout] | _____________________________________________________________________________________________^ [INFO] [stdout] 59 | | Socket::send(self, address, buffer); [INFO] [stdout] 60 | | Ok(buffer.len()) [INFO] [stdout] 61 | | } [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 [INFO] [stdout] --> src/test/network.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | Ok(buffer.len()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/test/network.rs:66:77 [INFO] [stdout] | [INFO] [stdout] 66 | ) -> Result, Self::Error> { [INFO] [stdout] | _____________________________________________________________________________^ [INFO] [stdout] 67 | | if let Some((address, data)) = Socket::receive(self) { [INFO] [stdout] 68 | | let data_length = data.len(); [INFO] [stdout] 69 | | if data_length <= enet::MTU_MAX { [INFO] [stdout] ... | [INFO] [stdout] 79 | | } [INFO] [stdout] | |_____^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/test/network.rs:67:9 [INFO] [stdout] | [INFO] [stdout] 67 | / if let Some((address, data)) = Socket::receive(self) { [INFO] [stdout] 68 | | let data_length = data.len(); [INFO] [stdout] 69 | | if data_length <= enet::MTU_MAX { [INFO] [stdout] 70 | | copy(&mut Cursor::new(data), &mut Cursor::new(&mut buffer[..])) [INFO] [stdout] ... | [INFO] [stdout] 77 | | Ok(None) [INFO] [stdout] 78 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/test/network.rs:67:62 [INFO] [stdout] | [INFO] [stdout] 67 | if let Some((address, data)) = Socket::receive(self) { [INFO] [stdout] | ______________________________________________________________^ [INFO] [stdout] 68 | | let data_length = data.len(); [INFO] [stdout] 69 | | if data_length <= enet::MTU_MAX { [INFO] [stdout] 70 | | copy(&mut Cursor::new(data), &mut Cursor::new(&mut buffer[..])) [INFO] [stdout] ... | [INFO] [stdout] 76 | | } else { [INFO] [stdout] | |_________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/test/network.rs:69:13 [INFO] [stdout] | [INFO] [stdout] 69 | / if data_length <= enet::MTU_MAX { [INFO] [stdout] 70 | | copy(&mut Cursor::new(data), &mut Cursor::new(&mut buffer[..])) [INFO] [stdout] 71 | | .expect("Buffer copy should not fail."); [INFO] [stdout] 72 | | Ok(Some((address, enet::PacketReceived::Complete(data_length)))) [INFO] [stdout] 73 | | } else { [INFO] [stdout] 74 | | Ok(None) [INFO] [stdout] 75 | | } [INFO] [stdout] | |_____________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/test/network.rs:69:45 [INFO] [stdout] | [INFO] [stdout] 69 | if data_length <= enet::MTU_MAX { [INFO] [stdout] | _____________________________________________^ [INFO] [stdout] 70 | | copy(&mut Cursor::new(data), &mut Cursor::new(&mut buffer[..])) [INFO] [stdout] 71 | | .expect("Buffer copy should not fail."); [INFO] [stdout] 72 | | Ok(Some((address, enet::PacketReceived::Complete(data_length)))) [INFO] [stdout] 73 | | } else { [INFO] [stdout] | |_____________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/test/network.rs:72:17 [INFO] [stdout] | [INFO] [stdout] 72 | Ok(Some((address, enet::PacketReceived::Complete(data_length)))) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/test/network.rs:73:20 [INFO] [stdout] | [INFO] [stdout] 73 | } else { [INFO] [stdout] | ____________________^ [INFO] [stdout] 74 | | Ok(None) [INFO] [stdout] 75 | | } [INFO] [stdout] | |_____________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/test/network.rs:74:17 [INFO] [stdout] | [INFO] [stdout] 74 | Ok(None) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/test/network.rs:76:16 [INFO] [stdout] | [INFO] [stdout] 76 | } else { [INFO] [stdout] | ________________^ [INFO] [stdout] 77 | | Ok(None) [INFO] [stdout] 78 | | } [INFO] [stdout] | |_________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/test/network.rs:77:13 [INFO] [stdout] | [INFO] [stdout] 77 | Ok(None) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result>, Infallible> [INFO] [stdout] --> src/test/network.rs:208:42 [INFO] [stdout] | [INFO] [stdout] 208 | if let Some(event) = host.service().unwrap() { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rusty_enet` (lib test) due to 13 previous errors; 4 warnings emitted [INFO] running `Command { std: "docker" "inspect" "3b12d1484facd661f39de8a921b419f685ce24b33cd11d1321d370fa56cab069", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3b12d1484facd661f39de8a921b419f685ce24b33cd11d1321d370fa56cab069", kill_on_drop: false }` [INFO] [stdout] 3b12d1484facd661f39de8a921b419f685ce24b33cd11d1321d370fa56cab069