[INFO] fetching crate parallel 0.11.3...
[INFO] testing parallel-0.11.3 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate parallel 0.11.3 into /workspace/builds/worker-29/source
[INFO] validating manifest of crates.io crate parallel 0.11.3 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate parallel 0.11.3
[INFO] finished tweaking crates.io crate parallel 0.11.3
[INFO] tweaked toml for crates.io crate parallel 0.11.3 written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wait-timeout v0.1.5
[INFO] [stderr]   Downloaded smallvec v0.4.5
[INFO] [stderr]   Downloaded arrayvec v0.3.25
[INFO] [stderr]   Downloaded numtoa v0.0.7
[INFO] [stderr]   Downloaded odds v0.2.26
[INFO] [stderr]   Downloaded permutate v0.3.2
[INFO] [stderr]   Downloaded sys-info v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26948e660fa4973383953fc7ff70caed361c0a533717f9300096b16ee3e0880d
[INFO] running `Command { std: "docker" "start" "-a" "26948e660fa4973383953fc7ff70caed361c0a533717f9300096b16ee3e0880d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26948e660fa4973383953fc7ff70caed361c0a533717f9300096b16ee3e0880d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26948e660fa4973383953fc7ff70caed361c0a533717f9300096b16ee3e0880d", kill_on_drop: false }`
[INFO] [stdout] 26948e660fa4973383953fc7ff70caed361c0a533717f9300096b16ee3e0880d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9261451217d911b844895a29b9e44a561514b38041c15a1c613bf19c10d38e60
[INFO] running `Command { std: "docker" "start" "-a" "9261451217d911b844895a29b9e44a561514b38041c15a1c613bf19c10d38e60", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling odds v0.2.26
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling smallvec v0.4.5
[INFO] [stderr]    Compiling permutate v0.3.2
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling numtoa v0.0.7
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling wait-timeout v0.1.5
[INFO] [stderr]    Compiling arrayvec v0.3.25
[INFO] [stderr]    Compiling sys-info v0.4.1
[INFO] [stderr]    Compiling parallel v0.11.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown lint: `cyclomatic_complexity`
[INFO] [stdout]   --> src/execute/receive.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 | #[allow(cyclomatic_complexity)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/arguments/mod.rs:378:25
[INFO] [stdout]     |
[INFO] [stdout] 378 |     let parse_line: Box<Fn(io::Result<String>) -> io::Result<String>> =
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(io::Result<String>) -> io::Result<String>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/execute/dry.rs:26:26
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let pipe_action: Box<Fn(&mut StdoutLock, &str)> = if flags & arguments::SHELL_QUOTE != 0 {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut StdoutLock, &str)`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/input_iterator/lock.rs:22:62
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn try_next(&mut self, input: &mut String) -> Option<(usize)> {
[INFO] [stdout]    |                                                              ^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/main.rs:242:9
[INFO] [stdout]     |
[INFO] [stdout] 242 |         /// Prints messages from executed commands in the correct order.
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 243 |         let errors = execute::receive_messages(input_rx, args, &base_path, &processed_path, &errors_path);
[INFO] [stdout]     |         -------------------------------------------------------------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/main.rs:245:9
[INFO] [stdout]     |
[INFO] [stdout] 245 |         /// Wait for all threads to exit before proceeding.
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 246 |         for thread in threads { thread.join().unwrap(); }
[INFO] [stdout]     |         ------------------------------------------------- rustdoc does not generate documentation for expressions
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/arguments/mod.rs:553:9
[INFO] [stdout]     |
[INFO] [stdout] 553 |     let mut append_list = &mut Vec::new();
[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/execute/exec_commands.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let mut command_buffer = &mut String::with_capacity(64);
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/execute/pipe.rs:41:17
[INFO] [stdout]    |
[INFO] [stdout] 41 |             let mut stdout = child.stdout.as_mut().expect("unable to open stdout of child");
[INFO] [stdout]    |                 ----^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.42s
[INFO] running `Command { std: "docker" "inspect" "9261451217d911b844895a29b9e44a561514b38041c15a1c613bf19c10d38e60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9261451217d911b844895a29b9e44a561514b38041c15a1c613bf19c10d38e60", kill_on_drop: false }`
[INFO] [stdout] 9261451217d911b844895a29b9e44a561514b38041c15a1c613bf19c10d38e60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41be4f99f651c83b87cbc68377bc1e64604b996f5d322ff79cd713c46e0ebfff
[INFO] running `Command { std: "docker" "start" "-a" "41be4f99f651c83b87cbc68377bc1e64604b996f5d322ff79cd713c46e0ebfff", kill_on_drop: false }`
[INFO] [stderr]    Compiling parallel v0.11.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown lint: `cyclomatic_complexity`
[INFO] [stdout]   --> src/execute/receive.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 | #[allow(cyclomatic_complexity)]
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/arguments/mod.rs:378:25
[INFO] [stdout]     |
[INFO] [stdout] 378 |     let parse_line: Box<Fn(io::Result<String>) -> io::Result<String>> =
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(io::Result<String>) -> io::Result<String>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/execute/dry.rs:26:26
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let pipe_action: Box<Fn(&mut StdoutLock, &str)> = if flags & arguments::SHELL_QUOTE != 0 {
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut StdoutLock, &str)`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/input_iterator/lock.rs:22:62
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn try_next(&mut self, input: &mut String) -> Option<(usize)> {
[INFO] [stdout]    |                                                              ^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/input_iterator/iterator.rs:231:48
[INFO] [stdout]     |
[INFO] [stdout] 231 |         for (actual, expected) in iterator.zip((1..4096)) {
[INFO] [stdout]     |                                                ^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/main.rs:242:9
[INFO] [stdout]     |
[INFO] [stdout] 242 |         /// Prints messages from executed commands in the correct order.
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 243 |         let errors = execute::receive_messages(input_rx, args, &base_path, &processed_path, &errors_path);
[INFO] [stdout]     |         -------------------------------------------------------------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/main.rs:245:9
[INFO] [stdout]     |
[INFO] [stdout] 245 |         /// Wait for all threads to exit before proceeding.
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 246 |         for thread in threads { thread.join().unwrap(); }
[INFO] [stdout]     |         ------------------------------------------------- rustdoc does not generate documentation for expressions
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/arguments/mod.rs:553:9
[INFO] [stdout]     |
[INFO] [stdout] 553 |     let mut append_list = &mut Vec::new();
[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/execute/exec_commands.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let mut command_buffer = &mut String::with_capacity(64);
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/execute/pipe.rs:41:17
[INFO] [stdout]    |
[INFO] [stdout] 41 |             let mut stdout = child.stdout.as_mut().expect("unable to open stdout of child");
[INFO] [stdout]    |                 ----^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `Command { std: "docker" "inspect" "41be4f99f651c83b87cbc68377bc1e64604b996f5d322ff79cd713c46e0ebfff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41be4f99f651c83b87cbc68377bc1e64604b996f5d322ff79cd713c46e0ebfff", kill_on_drop: false }`
[INFO] [stdout] 41be4f99f651c83b87cbc68377bc1e64604b996f5d322ff79cd713c46e0ebfff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a48b6f08f68c141727da55bccf7c1b60510299c24370f2adf735735db185c096
[INFO] running `Command { std: "docker" "start" "-a" "a48b6f08f68c141727da55bccf7c1b60510299c24370f2adf735735db185c096", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unknown lint: `cyclomatic_complexity`
[INFO] [stderr]   --> src/execute/receive.rs:70:9
[INFO] [stderr]    |
[INFO] [stderr] 70 | #[allow(cyclomatic_complexity)]
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/arguments/mod.rs:378:25
[INFO] [stderr]     |
[INFO] [stderr] 378 |     let parse_line: Box<Fn(io::Result<String>) -> io::Result<String>> =
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(io::Result<String>) -> io::Result<String>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/execute/dry.rs:26:26
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let pipe_action: Box<Fn(&mut StdoutLock, &str)> = if flags & arguments::SHELL_QUOTE != 0 {
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut StdoutLock, &str)`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/input_iterator/lock.rs:22:62
[INFO] [stderr]    |
[INFO] [stderr] 22 |     pub fn try_next(&mut self, input: &mut String) -> Option<(usize)> {
[INFO] [stderr]    |                                                              ^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]    --> src/input_iterator/iterator.rs:231:48
[INFO] [stderr]     |
[INFO] [stderr] 231 |         for (actual, expected) in iterator.zip((1..4096)) {
[INFO] [stderr]     |                                                ^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/main.rs:242:9
[INFO] [stderr]     |
[INFO] [stderr] 242 |         /// Prints messages from executed commands in the correct order.
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 243 |         let errors = execute::receive_messages(input_rx, args, &base_path, &processed_path, &errors_path);
[INFO] [stderr]     |         -------------------------------------------------------------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]     = help: use `//` for a plain comment
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/main.rs:245:9
[INFO] [stderr]     |
[INFO] [stderr] 245 |         /// Wait for all threads to exit before proceeding.
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 246 |         for thread in threads { thread.join().unwrap(); }
[INFO] [stderr]     |         ------------------------------------------------- rustdoc does not generate documentation for expressions
[INFO] [stderr]     |
[INFO] [stderr]     = help: use `//` for a plain comment
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/arguments/mod.rs:553:9
[INFO] [stderr]     |
[INFO] [stderr] 553 |     let mut append_list = &mut Vec::new();
[INFO] [stderr]     |         ----^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/execute/exec_commands.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let mut command_buffer = &mut String::with_capacity(64);
[INFO] [stderr]    |             ----^^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/execute/pipe.rs:41:17
[INFO] [stderr]    |
[INFO] [stderr] 41 |             let mut stdout = child.stdout.as_mut().expect("unable to open stdout of child");
[INFO] [stderr]    |                 ----^^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `parallel` (bin "parallel" test) generated 10 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/parallel-fa374694e66ced07)
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test disk_buffer::tests::test_disk_buffer_reader_byte_shifting ... ok
[INFO] [stdout] test execute::argument_splitter::tests::methods ... ok
[INFO] [stdout] test execute::argument_splitter::tests::arrays ... ok
[INFO] [stdout] test execute::argument_splitter::tests::processes ... ok
[INFO] [stdout] test tokenizer::functions::tests::path_dirname_dir ... ok
[INFO] [stdout] test tokenizer::functions::tests::path_dirname_utf8 ... ok
[INFO] [stdout] test tokenizer::functions::tests::path_hidden ... ok
[INFO] [stdout] test tokenizer::functions::tests::path_remove_ext_dir ... ok
[INFO] [stdout] test disk_buffer::tests::test_disk_buffer_reader_simple ... ok
[INFO] [stdout] test arguments::jobs::job_parsing ... ok
[INFO] [stdout] test tokenizer::functions::tests::path_basename_dir ... ok
[INFO] [stdout] test tokenizer::functions::tests::path_remove_ext_empty ... ok
[INFO] [stdout] test tokenizer::functions::tests::path_dirname_simple ... ok
[INFO] [stdout] test tokenizer::functions::tests::path_basename_empty ... ok
[INFO] [stdout] test tokenizer::functions::tests::path_remove_ext_utf8 ... ok
[INFO] [stdout] test tokenizer::functions::tests::path_remove_ext_simple ... ok
[INFO] [stdout] test execute::argument_splitter::tests::quotes ... ok
[INFO] [stdout] test tokenizer::functions::tests::path_dirname_empty ... ok
[INFO] [stdout] test tokenizer::functions::tests::path_basename_simple ... ok
[INFO] [stdout] test tokenizer::functions::tests::path_basename_utf8 ... ok
[INFO] [stdout] test input_iterator::iterator::tests::test_input_iterator ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a48b6f08f68c141727da55bccf7c1b60510299c24370f2adf735735db185c096", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a48b6f08f68c141727da55bccf7c1b60510299c24370f2adf735735db185c096", kill_on_drop: false }`
[INFO] [stdout] a48b6f08f68c141727da55bccf7c1b60510299c24370f2adf735735db185c096
