[INFO] fetching crate tokio-fs 0.1.7... [INFO] checking tokio-fs-0.1.7 against master#e29821ff85a2a3000d226f99f62f89464028d5d6 for pr-111505 [INFO] extracting crate tokio-fs 0.1.7 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate tokio-fs 0.1.7 on toolchain e29821ff85a2a3000d226f99f62f89464028d5d6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e29821ff85a2a3000d226f99f62f89464028d5d6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate tokio-fs 0.1.7 [INFO] finished tweaking crates.io crate tokio-fs 0.1.7 [INFO] tweaked toml for crates.io crate tokio-fs 0.1.7 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate crates.io crate tokio-fs 0.1.7 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" "+e29821ff85a2a3000d226f99f62f89464028d5d6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tokio-uds v0.2.6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e29821ff85a2a3000d226f99f62f89464028d5d6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 735bc09f0cea308884ea4a9dd364f5cc9cc330f3646027c9ad89c359697c92c0 [INFO] running `Command { std: "docker" "start" "-a" "735bc09f0cea308884ea4a9dd364f5cc9cc330f3646027c9ad89c359697c92c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "735bc09f0cea308884ea4a9dd364f5cc9cc330f3646027c9ad89c359697c92c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "735bc09f0cea308884ea4a9dd364f5cc9cc330f3646027c9ad89c359697c92c0", kill_on_drop: false }` [INFO] [stdout] 735bc09f0cea308884ea4a9dd364f5cc9cc330f3646027c9ad89c359697c92c0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e29821ff85a2a3000d226f99f62f89464028d5d6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1d6c705d6b477bbf0aa440bc1e8acb8d472c7eee8bce7dce670f48a27df09b62 [INFO] running `Command { std: "docker" "start" "-a" "1d6c705d6b477bbf0aa440bc1e8acb8d472c7eee8bce7dce670f48a27df09b62", kill_on_drop: false }` [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Checking scopeguard v1.0.0 [INFO] [stderr] Checking ppv-lite86 v0.2.6 [INFO] [stderr] Checking remove_dir_all v0.5.2 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Checking getrandom v0.1.14 [INFO] [stderr] Checking lock_api v0.3.3 [INFO] [stderr] Checking crossbeam-epoch v0.8.0 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking parking_lot v0.9.0 [INFO] [stderr] Checking crossbeam-deque v0.7.2 [INFO] [stderr] Checking tokio-executor v0.1.9 [INFO] [stderr] Checking mio v0.6.21 [INFO] [stderr] Checking c2-chacha v0.2.3 [INFO] [stderr] Checking tokio-timer v0.2.13 [INFO] [stderr] Checking tokio-current-thread v0.1.6 [INFO] [stderr] Checking tokio-threadpool v0.1.18 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking tokio-io v0.1.13 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking tokio-reactor v0.1.12 [INFO] [stderr] Checking tokio-codec v0.1.1 [INFO] [stderr] Checking tokio-fs v0.1.6 [INFO] [stderr] Checking tokio-fs v0.1.7 (/opt/rustwide/workdir) [INFO] [stderr] Checking tempfile v3.1.0 [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/read.rs:71:9 [INFO] [stdout] | [INFO] [stdout] 71 | mem::replace(&mut self.state, new_state); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 71 | let _ = mem::replace(&mut self.state, new_state); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/write.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 68 | mem::replace(&mut self.state, new_state); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 68 | let _ = mem::replace(&mut self.state, new_state); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking tokio-uds v0.2.6 [INFO] [stderr] Checking tokio-tcp v0.1.4 [INFO] [stderr] Checking tokio-udp v0.1.6 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stdout] warning: unnecessary braces around function argument [INFO] [stdout] --> tests/link.rs:25:15 [INFO] [stdout] | [INFO] [stdout] 25 | pool::run({ hard_link(src, dst.clone()) }); [INFO] [stdout] | ^^ ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_braces)]` on by default [INFO] [stdout] help: remove these braces [INFO] [stdout] | [INFO] [stdout] 25 - pool::run({ hard_link(src, dst.clone()) }); [INFO] [stdout] 25 + pool::run(hard_link(src, dst.clone())); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around function argument [INFO] [stdout] --> tests/link.rs:50:15 [INFO] [stdout] | [INFO] [stdout] 50 | pool::run({ os::unix::symlink(src.clone(), dst.clone()) }); [INFO] [stdout] | ^^ ^^ [INFO] [stdout] | [INFO] [stdout] help: remove these braces [INFO] [stdout] | [INFO] [stdout] 50 - pool::run({ os::unix::symlink(src.clone(), dst.clone()) }); [INFO] [stdout] 50 + pool::run(os::unix::symlink(src.clone(), dst.clone())); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around function argument [INFO] [stdout] --> tests/link.rs:62:15 [INFO] [stdout] | [INFO] [stdout] 62 | pool::run({ read_link(dst.clone()).map(move |x| assert!(x == src)) }); [INFO] [stdout] | ^^ ^^ [INFO] [stdout] | [INFO] [stdout] help: remove these braces [INFO] [stdout] | [INFO] [stdout] 62 - pool::run({ read_link(dst.clone()).map(move |x| assert!(x == src)) }); [INFO] [stdout] 62 + pool::run(read_link(dst.clone()).map(move |x| assert!(x == src))); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around function argument [INFO] [stdout] --> tests/link.rs:63:15 [INFO] [stdout] | [INFO] [stdout] 63 | pool::run({ symlink_metadata(dst.clone()).map(move |x| assert!(x.file_type().is_symlink())) }); [INFO] [stdout] | ^^ ^^ [INFO] [stdout] | [INFO] [stdout] help: remove these braces [INFO] [stdout] | [INFO] [stdout] 63 - pool::run({ symlink_metadata(dst.clone()).map(move |x| assert!(x.file_type().is_symlink())) }); [INFO] [stdout] 63 + pool::run(symlink_metadata(dst.clone()).map(move |x| assert!(x.file_type().is_symlink()))); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around function argument [INFO] [stdout] --> tests/dir.rs:18:15 [INFO] [stdout] | [INFO] [stdout] 18 | pool::run({ create_dir(new_dir.clone()) }); [INFO] [stdout] | ^^ ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_braces)]` on by default [INFO] [stdout] help: remove these braces [INFO] [stdout] | [INFO] [stdout] 18 - pool::run({ create_dir(new_dir.clone()) }); [INFO] [stdout] 18 + pool::run(create_dir(new_dir.clone())); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around function argument [INFO] [stdout] --> tests/dir.rs:28:15 [INFO] [stdout] | [INFO] [stdout] 28 | pool::run({ create_dir_all(new_dir.clone()) }); [INFO] [stdout] | ^^ ^^ [INFO] [stdout] | [INFO] [stdout] help: remove these braces [INFO] [stdout] | [INFO] [stdout] 28 - pool::run({ create_dir_all(new_dir.clone()) }); [INFO] [stdout] 28 + pool::run(create_dir_all(new_dir.clone())); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary braces around function argument [INFO] [stdout] --> tests/dir.rs:40:15 [INFO] [stdout] | [INFO] [stdout] 40 | pool::run({ remove_dir(new_dir.clone()) }); [INFO] [stdout] | ^^ ^^ [INFO] [stdout] | [INFO] [stdout] help: remove these braces [INFO] [stdout] | [INFO] [stdout] 40 - pool::run({ remove_dir(new_dir.clone()) }); [INFO] [stdout] 40 + pool::run(remove_dir(new_dir.clone())); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/read.rs:71:9 [INFO] [stdout] | [INFO] [stdout] 71 | mem::replace(&mut self.state, new_state); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 71 | let _ = mem::replace(&mut self.state, new_state); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/write.rs:68:9 [INFO] [stdout] | [INFO] [stdout] 68 | mem::replace(&mut self.state, new_state); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 68 | let _ = mem::replace(&mut self.state, new_state); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.58s [INFO] running `Command { std: "docker" "inspect" "1d6c705d6b477bbf0aa440bc1e8acb8d472c7eee8bce7dce670f48a27df09b62", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1d6c705d6b477bbf0aa440bc1e8acb8d472c7eee8bce7dce670f48a27df09b62", kill_on_drop: false }` [INFO] [stdout] 1d6c705d6b477bbf0aa440bc1e8acb8d472c7eee8bce7dce670f48a27df09b62