[INFO] fetching crate comn 0.1.1...
[INFO] testing comn-0.1.1 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate comn 0.1.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate comn 0.1.1
[INFO] finished tweaking crates.io crate comn 0.1.1
[INFO] tweaked toml for crates.io crate comn 0.1.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate comn 0.1.1 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 75 packages to highest compatible versions
[INFO] [stderr]       Adding clap v2.33.4 (available: v2.34.0)
[INFO] [stderr]       Adding ctor v0.1.26 (available: v1.0.13)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 06c8fe9bb3846aeb6ad3d61ffbf9daa641d0e929dd0e698fbd845c4f2e60c583
[INFO] running `Command { std: "docker" "start" "06c8fe9bb3846aeb6ad3d61ffbf9daa641d0e929dd0e698fbd845c4f2e60c583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06c8fe9bb3846aeb6ad3d61ffbf9daa641d0e929dd0e698fbd845c4f2e60c583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "06c8fe9bb3846aeb6ad3d61ffbf9daa641d0e929dd0e698fbd845c4f2e60c583" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06c8fe9bb3846aeb6ad3d61ffbf9daa641d0e929dd0e698fbd845c4f2e60c583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "06c8fe9bb3846aeb6ad3d61ffbf9daa641d0e929dd0e698fbd845c4f2e60c583" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.191
[INFO] [stderr]    Compiling futures-core v0.3.34
[INFO] [stderr]    Compiling futures-sink v0.3.34
[INFO] [stderr]    Compiling futures-io v0.3.34
[INFO] [stderr]    Compiling smallvec v1.16.3
[INFO] [stderr]    Compiling iana-time-zone v0.1.65
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling syn v3.0.9
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]    Compiling futures-channel v0.3.34
[INFO] [stderr]    Compiling chrono v0.4.45
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling socket2 v0.6.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling mio v1.2.4
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling clap v2.33.4
[INFO] [stderr]    Compiling comn-pms v0.1.0
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling futures-macro v0.3.34
[INFO] [stderr]    Compiling tokio-macros v2.7.2
[INFO] [stderr]    Compiling futures-util v0.3.34
[INFO] [stderr]    Compiling tokio v1.53.3
[INFO] [stderr]    Compiling futures-executor v0.3.34
[INFO] [stderr]    Compiling futures v0.3.34
[INFO] [stderr]    Compiling comn v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated import through accidentally stabilized module `intrinsics`
[INFO] [stdout]  --> src/atomic.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::intrinsics::transmute;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] help: import this function via the `mem` module instead
[INFO] [stdout]   |
[INFO] [stdout] 2 - use std::intrinsics::transmute;
[INFO] [stdout] 2 + use std::mem::transmute;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::usize`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/list_head.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::usize;
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/flags.rs:33:38
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn cmd_args_list(k: &'static str) -> &mut LinkedList<item> {
[INFO] [stdout]    |                      -------         ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is named 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: consistently use `'static`
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn cmd_args_list(k: &'static str) -> &'static mut LinkedList<item> {
[INFO] [stdout]    |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> src/flags.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |             Box::<str>::from(*ptr);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 215 |             let _ = Box::<str>::from(*ptr);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `futures`
[INFO] [stderr]   --> Cargo.toml:10:15
[INFO] [stderr]    |
[INFO] [stderr] 10 | [dependencies.futures]
[INFO] [stderr]    |               ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `futures`
[INFO] [stderr] warning: unused dependency `tokio`
[INFO] [stderr]   --> Cargo.toml:13:15
[INFO] [stderr]    |
[INFO] [stderr] 13 | [dependencies.tokio]
[INFO] [stderr]    |               ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the dependency on `tokio`
[INFO] [stderr] warning: `comn` (manifest) generated 2 warnings
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 22.01s
[INFO] running `Command { std: "docker" "inspect" "06c8fe9bb3846aeb6ad3d61ffbf9daa641d0e929dd0e698fbd845c4f2e60c583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "06c8fe9bb3846aeb6ad3d61ffbf9daa641d0e929dd0e698fbd845c4f2e60c583" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling comn v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated import through accidentally stabilized module `intrinsics`
[INFO] [stdout]  --> src/atomic.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::intrinsics::transmute;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] help: import this function via the `mem` module instead
[INFO] [stdout]   |
[INFO] [stdout] 2 - use std::intrinsics::transmute;
[INFO] [stdout] 2 + use std::mem::transmute;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::usize`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/list_head.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::usize;
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/flags.rs:33:38
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn cmd_args_list(k: &'static str) -> &mut LinkedList<item> {
[INFO] [stdout]    |                      -------         ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is named 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: consistently use `'static`
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn cmd_args_list(k: &'static str) -> &'static mut LinkedList<item> {
[INFO] [stdout]    |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> src/flags.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |             Box::<str>::from(*ptr);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 215 |             let _ = Box::<str>::from(*ptr);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `x` should have an upper camel case name
[INFO] [stdout]    --> tests/test.rs:165:12
[INFO] [stdout]     |
[INFO] [stdout] 165 |     struct x<T> {
[INFO] [stdout]     |            ^ help: convert the identifier to upper camel case (notice the capitalization): `X`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `a` should have an upper camel case name
[INFO] [stdout]    --> tests/test.rs:180:12
[INFO] [stdout]     |
[INFO] [stdout] 180 |     struct a {
[INFO] [stdout]     |            ^ help: convert the identifier to upper camel case: `A`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `wrapper` should have an upper camel case name
[INFO] [stdout]  --> tests/tokio.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     struct wrapper {
[INFO] [stdout]   |            ^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Wrapper`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stdout]   --> tests/tokio.rs:33:17
[INFO] [stdout]    |
[INFO] [stdout] 33 |         thread::sleep_ms(5000);
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stdout]   --> tests/tokio.rs:48:17
[INFO] [stdout]    |
[INFO] [stdout] 48 |         thread::sleep_ms(5000);
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stdout]   --> tests/tokio.rs:63:17
[INFO] [stdout]    |
[INFO] [stdout] 63 |         thread::sleep_ms(5000);
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stdout]   --> tests/tokio.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 71 |     thread::sleep_ms(3000);
[INFO] [stdout]    |             ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated import through accidentally stabilized module `intrinsics`
[INFO] [stdout]  --> src/atomic.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::intrinsics::transmute;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] help: import this function via the `mem` module instead
[INFO] [stdout]   |
[INFO] [stdout] 2 - use std::intrinsics::transmute;
[INFO] [stdout] 2 + use std::mem::transmute;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> tests/test.rs:281:13
[INFO] [stdout]     |
[INFO] [stdout] 281 |         let mut y = &mut x;
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `a` is never constructed
[INFO] [stdout]    --> tests/test.rs:180:12
[INFO] [stdout]     |
[INFO] [stdout] 180 |     struct a {
[INFO] [stdout]     |            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `x3` is never used
[INFO] [stdout]    --> tests/test.rs:185:8
[INFO] [stdout]     |
[INFO] [stdout] 185 |     fn x3(c: &mut a, d: a) {
[INFO] [stdout]     |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::usize`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/list_head.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::usize;
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> tests/test.rs:222:9
[INFO] [stdout]     |
[INFO] [stdout] 222 | /         thread::spawn(move || {
[INFO] [stdout] 223 | |             let sss3 = unsafe { &mut *(sss1 as *const _ as *mut String) };
[INFO] [stdout] 224 | |             let sss4 = Box::leak(Box::new(format!("{1} {0}", i, 8)));
[INFO] [stdout] 225 | |             mem::swap(sss3, sss4);
[INFO] [stdout] 226 | |         })
[INFO] [stdout] 227 | |         .join();
[INFO] [stdout]     | |_______________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 222 |         let _ = thread::spawn(move || {
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
[INFO] [stdout]    --> tests/test.rs:223:33
[INFO] [stdout]     |
[INFO] [stdout] 223 |             let sss3 = unsafe { &mut *(sss1 as *const _ as *mut String) };
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout]     = note: `#[warn(invalid_reference_casting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` in tuple element 0 that must be used
[INFO] [stdout]   --> tests/tokio.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     tokio::join!(h1, h2, h3);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` in tuple element 1 that must be used
[INFO] [stdout]   --> tests/tokio.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     tokio::join!(h1, h2, h3);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` in tuple element 2 that must be used
[INFO] [stdout]   --> tests/tokio.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     tokio::join!(h1, h2, h3);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/flags.rs:33:38
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn cmd_args_list(k: &'static str) -> &mut LinkedList<item> {
[INFO] [stdout]    |                      -------         ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is elided here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is named 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: consistently use `'static`
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn cmd_args_list(k: &'static str) -> &'static mut LinkedList<item> {
[INFO] [stdout]    |                                       +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> src/flags.rs:215:13
[INFO] [stdout]     |
[INFO] [stdout] 215 |             Box::<str>::from(*ptr);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 215 |             let _ = Box::<str>::from(*ptr);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `futures`
[INFO] [stderr]   --> Cargo.toml:10:15
[INFO] [stderr]    |
[INFO] [stderr] 10 | [dependencies.futures]
[INFO] [stderr]    |               ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `futures`
[INFO] [stderr] warning: unused dependency `tokio`
[INFO] [stderr]   --> Cargo.toml:13:15
[INFO] [stderr]    |
[INFO] [stderr] 13 | [dependencies.tokio]
[INFO] [stderr]    |               ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the dependency on `tokio`
[INFO] [stderr] help: to still use for development builds, move to `dev-dependencies`
[INFO] [stderr] warning: `comn` (manifest) generated 2 warnings
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 1.50s
[INFO] running `Command { std: "docker" "inspect" "06c8fe9bb3846aeb6ad3d61ffbf9daa641d0e929dd0e698fbd845c4f2e60c583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "06c8fe9bb3846aeb6ad3d61ffbf9daa641d0e929dd0e698fbd845c4f2e60c583" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated import through accidentally stabilized module `intrinsics`
[INFO] [stderr]  --> src/atomic.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::intrinsics::transmute;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] help: import this function via the `mem` module instead
[INFO] [stderr]   |
[INFO] [stderr] 2 - use std::intrinsics::transmute;
[INFO] [stderr] 2 + use std::mem::transmute;
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated module `std::usize`: all constants in this module replaced by associated constants on the type
[INFO] [stderr]  --> src/list_head.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::usize;
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stderr]   --> src/flags.rs:33:38
[INFO] [stderr]    |
[INFO] [stderr] 33 | fn cmd_args_list(k: &'static str) -> &mut LinkedList<item> {
[INFO] [stderr]    |                      -------         ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is elided here
[INFO] [stderr]    |                      |
[INFO] [stderr]    |                      the lifetime is named here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: consistently use `'static`
[INFO] [stderr]    |
[INFO] [stderr] 33 | fn cmd_args_list(k: &'static str) -> &'static mut LinkedList<item> {
[INFO] [stderr]    |                                       +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]    --> src/flags.rs:215:13
[INFO] [stderr]     |
[INFO] [stderr] 215 |             Box::<str>::from(*ptr);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 215 |             let _ = Box::<str>::from(*ptr);
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `comn` (lib) generated 4 warnings (run `cargo fix --lib -p comn` to apply 2 suggestions)
[INFO] [stderr] warning: `comn` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr] warning: type `wrapper` should have an upper camel case name
[INFO] [stderr]  --> tests/tokio.rs:8:12
[INFO] [stderr]   |
[INFO] [stderr] 8 |     struct wrapper {
[INFO] [stderr]   |            ^^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Wrapper`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stderr]   --> tests/tokio.rs:33:17
[INFO] [stderr]    |
[INFO] [stderr] 33 |         thread::sleep_ms(5000);
[INFO] [stderr]    |                 ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stderr]   --> tests/tokio.rs:48:17
[INFO] [stderr]    |
[INFO] [stderr] 48 |         thread::sleep_ms(5000);
[INFO] [stderr]    |                 ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stderr]   --> tests/tokio.rs:63:17
[INFO] [stderr]    |
[INFO] [stderr] 63 |         thread::sleep_ms(5000);
[INFO] [stderr]    |                 ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep`
[INFO] [stderr]   --> tests/tokio.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |     thread::sleep_ms(3000);
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` in tuple element 0 that must be used
[INFO] [stderr]   --> tests/tokio.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     tokio::join!(h1, h2, h3);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` in tuple element 1 that must be used
[INFO] [stderr]   --> tests/tokio.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     tokio::join!(h1, h2, h3);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` in tuple element 2 that must be used
[INFO] [stderr]   --> tests/tokio.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     tokio::join!(h1, h2, h3);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: type `x` should have an upper camel case name
[INFO] [stderr]    --> tests/test.rs:165:12
[INFO] [stderr]     |
[INFO] [stderr] 165 |     struct x<T> {
[INFO] [stderr]     |            ^ help: convert the identifier to upper camel case (notice the capitalization): `X`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type `a` should have an upper camel case name
[INFO] [stderr]    --> tests/test.rs:180:12
[INFO] [stderr]     |
[INFO] [stderr] 180 |     struct a {
[INFO] [stderr]     |            ^ help: convert the identifier to upper camel case: `A`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> tests/test.rs:281:13
[INFO] [stderr]     |
[INFO] [stderr] 281 |         let mut y = &mut x;
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `a` is never constructed
[INFO] [stderr]    --> tests/test.rs:180:12
[INFO] [stderr]     |
[INFO] [stderr] 180 |     struct a {
[INFO] [stderr]     |            ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `x3` is never used
[INFO] [stderr]    --> tests/test.rs:185:8
[INFO] [stderr]     |
[INFO] [stderr] 185 |     fn x3(c: &mut a, d: a) {
[INFO] [stderr]     |        ^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> tests/test.rs:222:9
[INFO] [stderr]     |
[INFO] [stderr] 222 | /         thread::spawn(move || {
[INFO] [stderr] 223 | |             let sss3 = unsafe { &mut *(sss1 as *const _ as *mut String) };
[INFO] [stderr] 224 | |             let sss4 = Box::leak(Box::new(format!("{1} {0}", i, 8)));
[INFO] [stderr] 225 | |             mem::swap(sss3, sss4);
[INFO] [stderr] 226 | |         })
[INFO] [stderr] 227 | |         .join();
[INFO] [stderr]     | |_______________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 222 |         let _ = thread::spawn(move || {
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
[INFO] [stderr]    --> tests/test.rs:223:33
[INFO] [stderr]     |
[INFO] [stderr] 223 |             let sss3 = unsafe { &mut *(sss1 as *const _ as *mut String) };
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stderr]     = note: `#[warn(invalid_reference_casting)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `comn` (test "tokio") generated 8 warnings
[INFO] [stderr] warning: `comn` (test "test") generated 7 warnings (run `cargo fix --test "test" -p comn` to apply 1 suggestion)
[INFO] [stderr] warning: unused dependency `futures`
[INFO] [stderr]   --> Cargo.toml:10:15
[INFO] [stderr]    |
[INFO] [stderr] 10 | [dependencies.futures]
[INFO] [stderr]    |               ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `futures`
[INFO] [stderr] warning: unused dependency `tokio`
[INFO] [stderr]   --> Cargo.toml:13:15
[INFO] [stderr]    |
[INFO] [stderr] 13 | [dependencies.tokio]
[INFO] [stderr]    |               ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the dependency on `tokio`
[INFO] [stderr] help: to still use for development builds, move to `dev-dependencies`
[INFO] [stderr] warning: `comn` (manifest) generated 2 warnings
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/build/comn/ef73f63de9c5a57d/out/comn-ef73f63de9c5a57d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/clap.rs (/opt/rustwide/target/release/build/comn/8ac8a5fb01441c2a/out/clap-8ac8a5fb01441c2a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/release/build/comn/46af3bd1f8aa65af/out/test-46af3bd1f8aa65af)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test test_proc_macro ... ok
[INFO] [stdout] test xi ... ok
[INFO] [stdout] test test_head ... ok
[INFO] [stdout] test test_my_handle ... ok
[INFO] [stdout] test x1 ... ok
[INFO] [stdout] test reborrow ... ok
[INFO] [stdout] test x2 ... ok
[INFO] [stdout] test a ... ok
[INFO] [stderr] error: test failed, to rerun pass `--test test`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/release/build/comn/46af3bd1f8aa65af/out/test-46af3bd1f8aa65af` (signal: 11, SIGSEGV: invalid memory reference)
[INFO] running `Command { std: "docker" "inspect" "06c8fe9bb3846aeb6ad3d61ffbf9daa641d0e929dd0e698fbd845c4f2e60c583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06c8fe9bb3846aeb6ad3d61ffbf9daa641d0e929dd0e698fbd845c4f2e60c583", kill_on_drop: false }`
[INFO] [stdout] 06c8fe9bb3846aeb6ad3d61ffbf9daa641d0e929dd0e698fbd845c4f2e60c583
