[INFO] cloning repository https://github.com/cangSDARM/rust-scratch
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cangSDARM/rust-scratch" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FcangSDARM%2Frust-scratch", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FcangSDARM%2Frust-scratch'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1603ff5fc4301c2c4d0188a89f2f60688d51c722
[INFO] testing cangSDARM/rust-scratch against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_getrandom_patch_2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FcangSDARM%2Frust-scratch" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cangSDARM/rust-scratch
[INFO] finished tweaking git repo https://github.com/cangSDARM/rust-scratch
[INFO] tweaked toml for git repo https://github.com/cangSDARM/rust-scratch written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cangSDARM/rust-scratch on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cangSDARM/rust-scratch 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d9fc2dc6ecf9a26512478a7d1fff6406f1829280d54375476ab9578bd09c842
[INFO] running `Command { std: "docker" "start" "-a" "8d9fc2dc6ecf9a26512478a7d1fff6406f1829280d54375476ab9578bd09c842", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d9fc2dc6ecf9a26512478a7d1fff6406f1829280d54375476ab9578bd09c842", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d9fc2dc6ecf9a26512478a7d1fff6406f1829280d54375476ab9578bd09c842", kill_on_drop: false }`
[INFO] [stdout] 8d9fc2dc6ecf9a26512478a7d1fff6406f1829280d54375476ab9578bd09c842
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 964d6c2a3b5c8239604411143762160aa4a53f71af6ea2a1023eea53830e109a
[INFO] running `Command { std: "docker" "start" "-a" "964d6c2a3b5c8239604411143762160aa4a53f71af6ea2a1023eea53830e109a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/rustwide/workdir/minigrep)
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rust-scratch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `derive`
[INFO] [stdout]    --> src/traits.rs:125:7
[INFO] [stdout]     |
[INFO] [stdout] 125 | #[cfg(feature = "derive")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `derive` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_coordinates` is never used
[INFO] [stdout]   --> src/main.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn print_coordinates(&(x, y): &(i32, i32)) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Add` is never used
[INFO] [stdout]   --> src/generics.rs:67:7
[INFO] [stdout]    |
[INFO] [stdout] 67 | trait Add<RHS = Self> {
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/generics.rs:72:20
[INFO] [stdout]    |
[INFO] [stdout] 72 | struct Millimeters(u32);
[INFO] [stdout]    |        ----------- ^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Meters` is never constructed
[INFO] [stdout]   --> src/generics.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 | struct Meters(u32);
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Summary` is never used
[INFO] [stdout]  --> src/traits.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub trait Summary {
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `News` is never constructed
[INFO] [stdout]   --> src/traits.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct News {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tweet` is never constructed
[INFO] [stdout]   --> src/traits.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct Tweet {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Wrapper` is never constructed
[INFO] [stdout]   --> src/traits.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | struct Wrapper(Vec<String>);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `OutlinePrint` is never used
[INFO] [stdout]    --> src/traits.rs:133:7
[INFO] [stdout]     |
[INFO] [stdout] 133 | trait OutlinePrint: Display {
[INFO] [stdout]     |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AssociatedTypes` is never used
[INFO] [stdout]    --> src/traits.rs:143:11
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub trait AssociatedTypes {
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `must_use` that must be used
[INFO] [stdout]   --> src/lifecricle.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     format!("{}", another);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.00s
[INFO] running `Command { std: "docker" "inspect" "964d6c2a3b5c8239604411143762160aa4a53f71af6ea2a1023eea53830e109a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "964d6c2a3b5c8239604411143762160aa4a53f71af6ea2a1023eea53830e109a", kill_on_drop: false }`
[INFO] [stdout] 964d6c2a3b5c8239604411143762160aa4a53f71af6ea2a1023eea53830e109a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 161c6510504e161ed9a13f81f2109fecbbb506be4c3484a252c8a644df7ed3af
[INFO] running `Command { std: "docker" "start" "-a" "161c6510504e161ed9a13f81f2109fecbbb506be4c3484a252c8a644df7ed3af", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-scratch v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `derive`
[INFO] [stdout]    --> src/traits.rs:125:7
[INFO] [stdout]     |
[INFO] [stdout] 125 | #[cfg(feature = "derive")]
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]     |
[INFO] [stdout]     = note: no expected values for `feature`
[INFO] [stdout]     = help: consider adding `derive` as a feature in `Cargo.toml`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_coordinates` is never used
[INFO] [stdout]   --> src/main.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn print_coordinates(&(x, y): &(i32, i32)) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Add` is never used
[INFO] [stdout]   --> src/generics.rs:67:7
[INFO] [stdout]    |
[INFO] [stdout] 67 | trait Add<RHS = Self> {
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/generics.rs:72:20
[INFO] [stdout]    |
[INFO] [stdout] 72 | struct Millimeters(u32);
[INFO] [stdout]    |        ----------- ^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Meters` is never constructed
[INFO] [stdout]   --> src/generics.rs:73:8
[INFO] [stdout]    |
[INFO] [stdout] 73 | struct Meters(u32);
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Summary` is never used
[INFO] [stdout]  --> src/traits.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub trait Summary {
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `News` is never constructed
[INFO] [stdout]   --> src/traits.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout] 22 | struct News {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tweet` is never constructed
[INFO] [stdout]   --> src/traits.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct Tweet {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Wrapper` is never constructed
[INFO] [stdout]   --> src/traits.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | struct Wrapper(Vec<String>);
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `OutlinePrint` is never used
[INFO] [stdout]    --> src/traits.rs:133:7
[INFO] [stdout]     |
[INFO] [stdout] 133 | trait OutlinePrint: Display {
[INFO] [stdout]     |       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AssociatedTypes` is never used
[INFO] [stdout]    --> src/traits.rs:143:11
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub trait AssociatedTypes {
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `must_use` that must be used
[INFO] [stdout]   --> src/lifecricle.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 |     format!("{}", another);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "161c6510504e161ed9a13f81f2109fecbbb506be4c3484a252c8a644df7ed3af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "161c6510504e161ed9a13f81f2109fecbbb506be4c3484a252c8a644df7ed3af", kill_on_drop: false }`
[INFO] [stdout] 161c6510504e161ed9a13f81f2109fecbbb506be4c3484a252c8a644df7ed3af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 6dedf77e5758dfdec9a578eb2edcc0e0193109d32021aeff15bdb39e3a91bf2c
[INFO] running `Command { std: "docker" "start" "-a" "6dedf77e5758dfdec9a578eb2edcc0e0193109d32021aeff15bdb39e3a91bf2c", kill_on_drop: false }`
[INFO] [stderr] warning: unexpected `cfg` condition value: `derive`
[INFO] [stderr]    --> src/traits.rs:125:7
[INFO] [stderr]     |
[INFO] [stderr] 125 | #[cfg(feature = "derive")]
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stderr]     |
[INFO] [stderr]     = note: no expected values for `feature`
[INFO] [stderr]     = help: consider adding `derive` as a feature in `Cargo.toml`
[INFO] [stderr]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stderr]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `print_coordinates` is never used
[INFO] [stderr]   --> src/main.rs:41:4
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn print_coordinates(&(x, y): &(i32, i32)) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Add` is never used
[INFO] [stderr]   --> src/generics.rs:67:7
[INFO] [stderr]    |
[INFO] [stderr] 67 | trait Add<RHS = Self> {
[INFO] [stderr]    |       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/generics.rs:72:20
[INFO] [stderr]    |
[INFO] [stderr] 72 | struct Millimeters(u32);
[INFO] [stderr]    |        ----------- ^^^
[INFO] [stderr]    |        |
[INFO] [stderr]    |        field in this struct
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider removing this field
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Meters` is never constructed
[INFO] [stderr]   --> src/generics.rs:73:8
[INFO] [stderr]    |
[INFO] [stderr] 73 | struct Meters(u32);
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Summary` is never used
[INFO] [stderr]  --> src/traits.rs:8:11
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub trait Summary {
[INFO] [stderr]   |           ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `News` is never constructed
[INFO] [stderr]   --> src/traits.rs:22:8
[INFO] [stderr]    |
[INFO] [stderr] 22 | struct News {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Tweet` is never constructed
[INFO] [stderr]   --> src/traits.rs:26:8
[INFO] [stderr]    |
[INFO] [stderr] 26 | struct Tweet {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Wrapper` is never constructed
[INFO] [stderr]   --> src/traits.rs:54:8
[INFO] [stderr]    |
[INFO] [stderr] 54 | struct Wrapper(Vec<String>);
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `OutlinePrint` is never used
[INFO] [stderr]    --> src/traits.rs:133:7
[INFO] [stderr]     |
[INFO] [stderr] 133 | trait OutlinePrint: Display {
[INFO] [stderr]     |       ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `AssociatedTypes` is never used
[INFO] [stderr]    --> src/traits.rs:143:11
[INFO] [stderr]     |
[INFO] [stderr] 143 | pub trait AssociatedTypes {
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `must_use` that must be used
[INFO] [stderr]   --> src/lifecricle.rs:42:5
[INFO] [stderr]    |
[INFO] [stderr] 42 |     format!("{}", another);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-scratch` (bin "rust-scratch" test) generated 12 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/rust_scratch-87d378b8c1a090b4)
[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] running `Command { std: "docker" "inspect" "6dedf77e5758dfdec9a578eb2edcc0e0193109d32021aeff15bdb39e3a91bf2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dedf77e5758dfdec9a578eb2edcc0e0193109d32021aeff15bdb39e3a91bf2c", kill_on_drop: false }`
[INFO] [stdout] 6dedf77e5758dfdec9a578eb2edcc0e0193109d32021aeff15bdb39e3a91bf2c