[INFO] fetching crate gain 0.5.0... [INFO] checking gain-0.5.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate gain 0.5.0 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate gain 0.5.0 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate gain 0.5.0 [INFO] finished tweaking crates.io crate gain 0.5.0 [INFO] tweaked toml for crates.io crate gain 0.5.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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] [stderr] Adding async-task v1.3.1 (available: v4.7.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 142a3ca482d9f2960d576f3839a3ec23e95f0b205bccca4d9d3c20a00df15e33 [INFO] running `Command { std: "docker" "start" "-a" "142a3ca482d9f2960d576f3839a3ec23e95f0b205bccca4d9d3c20a00df15e33", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "142a3ca482d9f2960d576f3839a3ec23e95f0b205bccca4d9d3c20a00df15e33", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "142a3ca482d9f2960d576f3839a3ec23e95f0b205bccca4d9d3c20a00df15e33", kill_on_drop: false }` [INFO] [stdout] 142a3ca482d9f2960d576f3839a3ec23e95f0b205bccca4d9d3c20a00df15e33 [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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8ac491c60756725156db94211dd35eb6e2bc4bccff5b022e81e7ac1689be0eeb [INFO] running `Command { std: "docker" "start" "-a" "8ac491c60756725156db94211dd35eb6e2bc4bccff5b022e81e7ac1689be0eeb", kill_on_drop: false }` [INFO] [stderr] Checking async-task v1.3.1 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking gain v0.5.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/buf.rs:77:62 [INFO] [stdout] | [INFO] [stdout] 77 | fn read<'a>(&'a mut self, dest: &'a mut [u8]) -> future::Read; [INFO] [stdout] | -- lifetime `'a` declared here ^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/buf.rs:242:62 [INFO] [stdout] | [INFO] [stdout] 242 | fn read<'a>(&'a mut self, dest: &'a mut [u8]) -> future::Read { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/buf.rs:311:62 [INFO] [stdout] | [INFO] [stdout] 311 | fn read<'a>(&'a mut self, dest: &'a mut [u8]) -> future::Read { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/buf.rs:325:66 [INFO] [stdout] | [INFO] [stdout] 325 | fn write<'a>(&'a mut self, data: &'a [u8]) -> super::future::Write { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/buf.rs:329:82 [INFO] [stdout] | [INFO] [stdout] 329 | fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> super::future::Write { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/buf.rs:333:70 [INFO] [stdout] | [INFO] [stdout] 333 | fn write_all<'a>(&'a mut self, data: &'a [u8]) -> super::future::WriteAll { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:35:59 [INFO] [stdout] | [INFO] [stdout] 35 | fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write; [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:38:75 [INFO] [stdout] | [INFO] [stdout] 38 | fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write; [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:41:63 [INFO] [stdout] | [INFO] [stdout] 41 | fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll; [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:101:59 [INFO] [stdout] | [INFO] [stdout] 101 | fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:105:75 [INFO] [stdout] | [INFO] [stdout] 105 | fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:109:63 [INFO] [stdout] | [INFO] [stdout] 109 | fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:257:59 [INFO] [stdout] | [INFO] [stdout] 257 | fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:261:75 [INFO] [stdout] | [INFO] [stdout] 261 | fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:265:63 [INFO] [stdout] | [INFO] [stdout] 265 | fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:304:59 [INFO] [stdout] | [INFO] [stdout] 304 | fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:308:75 [INFO] [stdout] | [INFO] [stdout] 308 | fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:312:63 [INFO] [stdout] | [INFO] [stdout] 312 | fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/buf.rs:77:62 [INFO] [stdout] | [INFO] [stdout] 77 | fn read<'a>(&'a mut self, dest: &'a mut [u8]) -> future::Read; [INFO] [stdout] | -- lifetime `'a` declared here ^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/buf.rs:242:62 [INFO] [stdout] | [INFO] [stdout] 242 | fn read<'a>(&'a mut self, dest: &'a mut [u8]) -> future::Read { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/buf.rs:311:62 [INFO] [stdout] | [INFO] [stdout] 311 | fn read<'a>(&'a mut self, dest: &'a mut [u8]) -> future::Read { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/buf.rs:325:66 [INFO] [stdout] | [INFO] [stdout] 325 | fn write<'a>(&'a mut self, data: &'a [u8]) -> super::future::Write { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/buf.rs:329:82 [INFO] [stdout] | [INFO] [stdout] 329 | fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> super::future::Write { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/buf.rs:333:70 [INFO] [stdout] | [INFO] [stdout] 333 | fn write_all<'a>(&'a mut self, data: &'a [u8]) -> super::future::WriteAll { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:35:59 [INFO] [stdout] | [INFO] [stdout] 35 | fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write; [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:38:75 [INFO] [stdout] | [INFO] [stdout] 38 | fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write; [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:41:63 [INFO] [stdout] | [INFO] [stdout] 41 | fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll; [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:101:59 [INFO] [stdout] | [INFO] [stdout] 101 | fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:105:75 [INFO] [stdout] | [INFO] [stdout] 105 | fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:109:63 [INFO] [stdout] | [INFO] [stdout] 109 | fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:257:59 [INFO] [stdout] | [INFO] [stdout] 257 | fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:261:75 [INFO] [stdout] | [INFO] [stdout] 261 | fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:265:63 [INFO] [stdout] | [INFO] [stdout] 265 | fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:304:59 [INFO] [stdout] | [INFO] [stdout] 304 | fn write<'a>(&'a mut self, data: &'a [u8]) -> future::Write { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:308:75 [INFO] [stdout] | [INFO] [stdout] 308 | fn write_note<'a>(&'a mut self, data: &'a [u8], note: i32) -> future::Write { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/stream/mod.rs:312:63 [INFO] [stdout] | [INFO] [stdout] 312 | fn write_all<'a>(&'a mut self, data: &'a [u8]) -> future::WriteAll { [INFO] [stdout] | -- lifetime `'a` declared here ^^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/core.rs:315:13 [INFO] [stdout] | [INFO] [stdout] 315 | let mut prev_share = prev.as_mut().unwrap(); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/core.rs:315:13 [INFO] [stdout] | [INFO] [stdout] 315 | let mut prev_share = prev.as_mut().unwrap(); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 19 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 19 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.02s [INFO] running `Command { std: "docker" "inspect" "8ac491c60756725156db94211dd35eb6e2bc4bccff5b022e81e7ac1689be0eeb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8ac491c60756725156db94211dd35eb6e2bc4bccff5b022e81e7ac1689be0eeb", kill_on_drop: false }` [INFO] [stdout] 8ac491c60756725156db94211dd35eb6e2bc4bccff5b022e81e7ac1689be0eeb