[INFO] cloning repository https://github.com/SirGFM/rusty-but-fast [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SirGFM/rusty-but-fast" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSirGFM%2Frusty-but-fast", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSirGFM%2Frusty-but-fast'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 65a81cd60661abd7c448d05c355f69fcbff6d5c5 [INFO] checking SirGFM/rusty-but-fast against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSirGFM%2Frusty-but-fast" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/SirGFM/rusty-but-fast on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/SirGFM/rusty-but-fast [INFO] finished tweaking git repo https://github.com/SirGFM/rusty-but-fast [INFO] tweaked toml for git repo https://github.com/SirGFM/rusty-but-fast written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/SirGFM/rusty-but-fast 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded ctrlc v3.1.4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ce4bf5c8243d56e17f59cd3b9cd39ced666e223107dd1f349752e3c3bc4da49d [INFO] running `Command { std: "docker" "start" "-a" "ce4bf5c8243d56e17f59cd3b9cd39ced666e223107dd1f349752e3c3bc4da49d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ce4bf5c8243d56e17f59cd3b9cd39ced666e223107dd1f349752e3c3bc4da49d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ce4bf5c8243d56e17f59cd3b9cd39ced666e223107dd1f349752e3c3bc4da49d", kill_on_drop: false }` [INFO] [stdout] ce4bf5c8243d56e17f59cd3b9cd39ced666e223107dd1f349752e3c3bc4da49d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d1ad36380f6e0d249c533dfd58af8e102e4a0a78a3cc0681d502f54873e7d2ec [INFO] running `Command { std: "docker" "start" "-a" "d1ad36380f6e0d249c533dfd58af8e102e4a0a78a3cc0681d502f54873e7d2ec", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Compiling nix v0.17.0 [INFO] [stderr] Checking ctrlc v3.1.4 [INFO] [stderr] Checking rusty-but-fast v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `From` is imported redundantly [INFO] [stdout] --> src/timer.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::convert::From; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `From` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `From` is imported redundantly [INFO] [stdout] --> src/timer.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::convert::From; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `From` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tag` [INFO] [stdout] --> src/tlv.rs:269:21 [INFO] [stdout] | [INFO] [stdout] 269 | let tag = Tag::from(*t); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_tag` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `now` [INFO] [stdout] --> src/timer.rs:195:9 [INFO] [stdout] | [INFO] [stdout] 195 | let now = time::Instant::now(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_now` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:310:17 [INFO] [stdout] | [INFO] [stdout] 310 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:322:21 [INFO] [stdout] | [INFO] [stdout] 322 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/timer.rs:309:16 [INFO] [stdout] | [INFO] [stdout] 309 | Ok(mut ok_data) => ok_data, [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/timer.rs:321:20 [INFO] [stdout] | [INFO] [stdout] 321 | Ok(mut ok_data) => ok_data, [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:338:17 [INFO] [stdout] | [INFO] [stdout] 338 | Err(err) => return Err(Error::BadMessageTag), [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:351:17 [INFO] [stdout] | [INFO] [stdout] 351 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:377:17 [INFO] [stdout] | [INFO] [stdout] 377 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:403:13 [INFO] [stdout] | [INFO] [stdout] 403 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:425:21 [INFO] [stdout] | [INFO] [stdout] 425 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:437:13 [INFO] [stdout] | [INFO] [stdout] 437 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:485:13 [INFO] [stdout] | [INFO] [stdout] 485 | Err(err) => return Err(res.unwrap_err()), [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:489:13 [INFO] [stdout] | [INFO] [stdout] 489 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:496:13 [INFO] [stdout] | [INFO] [stdout] 496 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `read_arr` is never used [INFO] [stdout] --> src/tlv.rs:704:8 [INFO] [stdout] | [INFO] [stdout] 701 | impl<'a: 'b, 'b> TagParser<'a, 'b> { [INFO] [stdout] | ---------------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 704 | fn read_arr(&mut self, out: &mut [T]) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 17 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tag` [INFO] [stdout] --> src/tlv.rs:269:21 [INFO] [stdout] | [INFO] [stdout] 269 | let tag = Tag::from(*t); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_tag` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `now` [INFO] [stdout] --> src/timer.rs:195:9 [INFO] [stdout] | [INFO] [stdout] 195 | let now = time::Instant::now(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_now` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:310:17 [INFO] [stdout] | [INFO] [stdout] 310 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:322:21 [INFO] [stdout] | [INFO] [stdout] 322 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/timer.rs:309:16 [INFO] [stdout] | [INFO] [stdout] 309 | Ok(mut ok_data) => ok_data, [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/timer.rs:321:20 [INFO] [stdout] | [INFO] [stdout] 321 | Ok(mut ok_data) => ok_data, [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:338:17 [INFO] [stdout] | [INFO] [stdout] 338 | Err(err) => return Err(Error::BadMessageTag), [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:351:17 [INFO] [stdout] | [INFO] [stdout] 351 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:377:17 [INFO] [stdout] | [INFO] [stdout] 377 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:403:13 [INFO] [stdout] | [INFO] [stdout] 403 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:425:21 [INFO] [stdout] | [INFO] [stdout] 425 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:437:13 [INFO] [stdout] | [INFO] [stdout] 437 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:485:13 [INFO] [stdout] | [INFO] [stdout] 485 | Err(err) => return Err(res.unwrap_err()), [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:489:13 [INFO] [stdout] | [INFO] [stdout] 489 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:496:13 [INFO] [stdout] | [INFO] [stdout] 496 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::ErrorKind::WouldBlock as ErrWouldBlock` [INFO] [stdout] --> src/bin/timer_server.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | use std::io::ErrorKind::WouldBlock as ErrWouldBlock; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::ErrorKind::WouldBlock as ErrWouldBlock` [INFO] [stdout] --> src/bin/timer_server.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | use std::io::ErrorKind::WouldBlock as ErrWouldBlock; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.86s [INFO] running `Command { std: "docker" "inspect" "d1ad36380f6e0d249c533dfd58af8e102e4a0a78a3cc0681d502f54873e7d2ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d1ad36380f6e0d249c533dfd58af8e102e4a0a78a3cc0681d502f54873e7d2ec", kill_on_drop: false }` [INFO] [stdout] d1ad36380f6e0d249c533dfd58af8e102e4a0a78a3cc0681d502f54873e7d2ec [INFO] checking SirGFM/rusty-but-fast against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSirGFM%2Frusty-but-fast" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/SirGFM/rusty-but-fast on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/SirGFM/rusty-but-fast [INFO] finished tweaking git repo https://github.com/SirGFM/rusty-but-fast [INFO] tweaked toml for git repo https://github.com/SirGFM/rusty-but-fast written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/SirGFM/rusty-but-fast 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 581a38f8e82d186ef741aff59dd1c969f871626b113fee7b78d92be17a7151fa [INFO] running `Command { std: "docker" "start" "-a" "581a38f8e82d186ef741aff59dd1c969f871626b113fee7b78d92be17a7151fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "581a38f8e82d186ef741aff59dd1c969f871626b113fee7b78d92be17a7151fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "581a38f8e82d186ef741aff59dd1c969f871626b113fee7b78d92be17a7151fa", kill_on_drop: false }` [INFO] [stdout] 581a38f8e82d186ef741aff59dd1c969f871626b113fee7b78d92be17a7151fa [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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e534f68d73e332a7bf0a9c3b2a499407425a2fdb4afdbc26ee8857cbaf01d08a [INFO] running `Command { std: "docker" "start" "-a" "e534f68d73e332a7bf0a9c3b2a499407425a2fdb4afdbc26ee8857cbaf01d08a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Compiling nix v0.17.0 [INFO] [stderr] Checking ctrlc v3.1.4 [INFO] [stderr] Checking rusty-but-fast v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `From` is imported redundantly [INFO] [stdout] --> src/timer.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::convert::From; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `From` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `From` is imported redundantly [INFO] [stdout] --> src/timer.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::convert::From; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `From` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tag` [INFO] [stdout] --> src/tlv.rs:269:21 [INFO] [stdout] | [INFO] [stdout] 269 | let tag = Tag::from(*t); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_tag` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `now` [INFO] [stdout] --> src/timer.rs:195:9 [INFO] [stdout] | [INFO] [stdout] 195 | let now = time::Instant::now(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_now` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:310:17 [INFO] [stdout] | [INFO] [stdout] 310 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:322:21 [INFO] [stdout] | [INFO] [stdout] 322 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/timer.rs:309:16 [INFO] [stdout] | [INFO] [stdout] 309 | Ok(mut ok_data) => ok_data, [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/timer.rs:321:20 [INFO] [stdout] | [INFO] [stdout] 321 | Ok(mut ok_data) => ok_data, [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:338:17 [INFO] [stdout] | [INFO] [stdout] 338 | Err(err) => return Err(Error::BadMessageTag), [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:351:17 [INFO] [stdout] | [INFO] [stdout] 351 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:377:17 [INFO] [stdout] | [INFO] [stdout] 377 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:403:13 [INFO] [stdout] | [INFO] [stdout] 403 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:425:21 [INFO] [stdout] | [INFO] [stdout] 425 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:437:13 [INFO] [stdout] | [INFO] [stdout] 437 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:485:13 [INFO] [stdout] | [INFO] [stdout] 485 | Err(err) => return Err(res.unwrap_err()), [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:489:13 [INFO] [stdout] | [INFO] [stdout] 489 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:496:13 [INFO] [stdout] | [INFO] [stdout] 496 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `read_arr` is never used [INFO] [stdout] --> src/tlv.rs:704:8 [INFO] [stdout] | [INFO] [stdout] 701 | impl<'a: 'b, 'b> TagParser<'a, 'b> { [INFO] [stdout] | ---------------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 704 | fn read_arr(&mut self, out: &mut [T]) [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 17 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tag` [INFO] [stdout] --> src/tlv.rs:269:21 [INFO] [stdout] | [INFO] [stdout] 269 | let tag = Tag::from(*t); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_tag` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::ErrorKind::WouldBlock as ErrWouldBlock` [INFO] [stdout] --> src/bin/timer_server.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | use std::io::ErrorKind::WouldBlock as ErrWouldBlock; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::ErrorKind::WouldBlock as ErrWouldBlock` [INFO] [stdout] --> src/bin/timer_server.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | use std::io::ErrorKind::WouldBlock as ErrWouldBlock; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `now` [INFO] [stdout] --> src/timer.rs:195:9 [INFO] [stdout] | [INFO] [stdout] 195 | let now = time::Instant::now(); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_now` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:310:17 [INFO] [stdout] | [INFO] [stdout] 310 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:322:21 [INFO] [stdout] | [INFO] [stdout] 322 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/timer.rs:309:16 [INFO] [stdout] | [INFO] [stdout] 309 | Ok(mut ok_data) => ok_data, [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/timer.rs:321:20 [INFO] [stdout] | [INFO] [stdout] 321 | Ok(mut ok_data) => ok_data, [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:338:17 [INFO] [stdout] | [INFO] [stdout] 338 | Err(err) => return Err(Error::BadMessageTag), [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:351:17 [INFO] [stdout] | [INFO] [stdout] 351 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:377:17 [INFO] [stdout] | [INFO] [stdout] 377 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:403:13 [INFO] [stdout] | [INFO] [stdout] 403 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:425:21 [INFO] [stdout] | [INFO] [stdout] 425 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:437:13 [INFO] [stdout] | [INFO] [stdout] 437 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:485:13 [INFO] [stdout] | [INFO] [stdout] 485 | Err(err) => return Err(res.unwrap_err()), [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:489:13 [INFO] [stdout] | [INFO] [stdout] 489 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/timer.rs:496:13 [INFO] [stdout] | [INFO] [stdout] 496 | Err(err) => { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.00s [INFO] running `Command { std: "docker" "inspect" "e534f68d73e332a7bf0a9c3b2a499407425a2fdb4afdbc26ee8857cbaf01d08a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e534f68d73e332a7bf0a9c3b2a499407425a2fdb4afdbc26ee8857cbaf01d08a", kill_on_drop: false }` [INFO] [stdout] e534f68d73e332a7bf0a9c3b2a499407425a2fdb4afdbc26ee8857cbaf01d08a