[INFO] cloning repository https://github.com/suhanyujie/hello_cargo [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/suhanyujie/hello_cargo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuhanyujie%2Fhello_cargo", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuhanyujie%2Fhello_cargo'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e2ca02230864e628c8cd21c7090da828459fec11 [INFO] testing suhanyujie/hello_cargo against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuhanyujie%2Fhello_cargo" "/workspace/builds/worker-5/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/suhanyujie/hello_cargo on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/suhanyujie/hello_cargo [INFO] finished tweaking git repo https://github.com/suhanyujie/hello_cargo [INFO] tweaked toml for git repo https://github.com/suhanyujie/hello_cargo written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate git repo https://github.com/suhanyujie/hello_cargo already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded proc-macro2 v0.4.25 [INFO] [stderr] Downloaded bincode v1.0.1 [INFO] [stderr] Downloaded csv-core v0.1.5 [INFO] [stderr] Downloaded structopt v0.2.14 [INFO] [stderr] Downloaded structopt-derive v0.2.14 [INFO] [stderr] Downloaded csv v1.0.5 [INFO] [stderr] Downloaded rand v0.4.5 [INFO] [stderr] Downloaded libc v0.2.47 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b05a98055627987bdf9a14c62d5544299d27e51124367740a2ed28c17f5c2c80 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "b05a98055627987bdf9a14c62d5544299d27e51124367740a2ed28c17f5c2c80", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b05a98055627987bdf9a14c62d5544299d27e51124367740a2ed28c17f5c2c80", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b05a98055627987bdf9a14c62d5544299d27e51124367740a2ed28c17f5c2c80", kill_on_drop: false }` [INFO] [stdout] b05a98055627987bdf9a14c62d5544299d27e51124367740a2ed28c17f5c2c80 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 72b04805f3c47af9043651289ba27541bed6280bc01fa0ab109d6e641a1873dc [INFO] running `Command { std: "docker" "start" "-a" "72b04805f3c47af9043651289ba27541bed6280bc01fa0ab109d6e641a1873dc", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.47 [INFO] [stderr] Compiling proc-macro2 v0.4.25 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling unicode-width v0.1.5 [INFO] [stderr] Compiling byteorder v1.2.7 [INFO] [stderr] Compiling unicode-segmentation v1.2.1 [INFO] [stderr] Compiling strsim v0.7.0 [INFO] [stderr] Compiling bitflags v1.0.4 [INFO] [stderr] Compiling encode_unicode v0.3.5 [INFO] [stderr] Compiling memchr v2.1.2 [INFO] [stderr] Compiling textwrap v0.10.0 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Compiling term v0.5.1 [INFO] [stderr] Compiling bincode v1.0.1 [INFO] [stderr] Compiling atty v0.2.11 [INFO] [stderr] Compiling rand v0.4.5 [INFO] [stderr] Compiling quote v0.6.10 [INFO] [stderr] Compiling clap v2.32.0 [INFO] [stderr] Compiling csv-core v0.1.5 [INFO] [stderr] Compiling syn v0.15.26 [INFO] [stderr] Compiling csv v1.0.5 [INFO] [stderr] Compiling rand v0.3.22 [INFO] [stderr] Compiling prettytable-rs v0.8.0 [INFO] [stderr] Compiling structopt-derive v0.2.14 [INFO] [stderr] Compiling serde_derive v1.0.84 [INFO] [stderr] Compiling structopt v0.2.14 [INFO] [stderr] Compiling hello_cargo v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `hello_cargo::test_code::t1` [INFO] [stdout] --> src/bin/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use hello_cargo::test_code::t1; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `word1` [INFO] [stdout] --> src/bin/main.rs:61:9 [INFO] [stdout] | [INFO] [stdout] 61 | let word1 = &my_str1[..]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_word1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/bin/main.rs:59:15 [INFO] [stdout] | [INFO] [stdout] 59 | fn slice_show(s: &str) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `User` [INFO] [stdout] --> src/bin/main.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 16 | struct User { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `Message` [INFO] [stdout] --> src/bin/main.rs:22:6 [INFO] [stdout] | [INFO] [stdout] 22 | enum Message { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `first_word` [INFO] [stdout] --> src/bin/main.rs:78:4 [INFO] [stdout] | [INFO] [stdout] 78 | fn first_word(s: &String) -> &str { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `about_slice` [INFO] [stdout] --> src/bin/main.rs:89:4 [INFO] [stdout] | [INFO] [stdout] 89 | fn about_slice() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `ownership_change` [INFO] [stdout] --> src/bin/main.rs:100:4 [INFO] [stdout] | [INFO] [stdout] 100 | fn ownership_change() -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `mutable_ref_example` [INFO] [stdout] --> src/bin/main.rs:106:4 [INFO] [stdout] | [INFO] [stdout] 106 | fn mutable_ref_example(s: &mut String) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `reference_example` [INFO] [stdout] --> src/bin/main.rs:112:4 [INFO] [stdout] | [INFO] [stdout] 112 | fn reference_example(s: &String) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `multipleReturnVal` [INFO] [stdout] --> src/bin/main.rs:117:4 [INFO] [stdout] | [INFO] [stdout] 117 | fn multipleReturnVal(s: String) -> (String, usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `copyDeeply` [INFO] [stdout] --> src/bin/main.rs:123:4 [INFO] [stdout] | [INFO] [stdout] 123 | fn copyDeeply() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `five` [INFO] [stdout] --> src/bin/main.rs:131:4 [INFO] [stdout] | [INFO] [stdout] 131 | fn five() -> i32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/main.rs:45:9 [INFO] [stdout] | [INFO] [stdout] 45 | handle(Command::from_args()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `multipleReturnVal` should have a snake case name [INFO] [stdout] --> src/bin/main.rs:117:4 [INFO] [stdout] | [INFO] [stdout] 117 | fn multipleReturnVal(s: String) -> (String, usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `multiple_return_val` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `copyDeeply` should have a snake case name [INFO] [stdout] --> src/bin/main.rs:123:4 [INFO] [stdout] | [INFO] [stdout] 123 | fn copyDeeply() { [INFO] [stdout] | ^^^^^^^^^^ help: convert the identifier to snake case: `copy_deeply` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 27.05s [INFO] running `Command { std: "docker" "inspect" "72b04805f3c47af9043651289ba27541bed6280bc01fa0ab109d6e641a1873dc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "72b04805f3c47af9043651289ba27541bed6280bc01fa0ab109d6e641a1873dc", kill_on_drop: false }` [INFO] [stdout] 72b04805f3c47af9043651289ba27541bed6280bc01fa0ab109d6e641a1873dc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ef365eb77ecfb0bd73759e5b7d38ef05d268c75ec9884b82d177a03e5946384b [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "ef365eb77ecfb0bd73759e5b7d38ef05d268c75ec9884b82d177a03e5946384b", kill_on_drop: false }` [INFO] [stderr] Compiling hello_cargo v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `hello_cargo::test_code::t1` [INFO] [stdout] --> src/bin/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use hello_cargo::test_code::t1; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `word1` [INFO] [stdout] --> src/bin/main.rs:61:9 [INFO] [stdout] | [INFO] [stdout] 61 | let word1 = &my_str1[..]; [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_word1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s` [INFO] [stdout] --> src/bin/main.rs:59:15 [INFO] [stdout] | [INFO] [stdout] 59 | fn slice_show(s: &str) { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `User` [INFO] [stdout] --> src/bin/main.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 16 | struct User { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum is never used: `Message` [INFO] [stdout] --> src/bin/main.rs:22:6 [INFO] [stdout] | [INFO] [stdout] 22 | enum Message { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `first_word` [INFO] [stdout] --> src/bin/main.rs:78:4 [INFO] [stdout] | [INFO] [stdout] 78 | fn first_word(s: &String) -> &str { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `about_slice` [INFO] [stdout] --> src/bin/main.rs:89:4 [INFO] [stdout] | [INFO] [stdout] 89 | fn about_slice() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `ownership_change` [INFO] [stdout] --> src/bin/main.rs:100:4 [INFO] [stdout] | [INFO] [stdout] 100 | fn ownership_change() -> String { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `mutable_ref_example` [INFO] [stdout] --> src/bin/main.rs:106:4 [INFO] [stdout] | [INFO] [stdout] 106 | fn mutable_ref_example(s: &mut String) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `reference_example` [INFO] [stdout] --> src/bin/main.rs:112:4 [INFO] [stdout] | [INFO] [stdout] 112 | fn reference_example(s: &String) -> usize { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `multipleReturnVal` [INFO] [stdout] --> src/bin/main.rs:117:4 [INFO] [stdout] | [INFO] [stdout] 117 | fn multipleReturnVal(s: String) -> (String, usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `copyDeeply` [INFO] [stdout] --> src/bin/main.rs:123:4 [INFO] [stdout] | [INFO] [stdout] 123 | fn copyDeeply() { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `five` [INFO] [stdout] --> src/bin/main.rs:131:4 [INFO] [stdout] | [INFO] [stdout] 131 | fn five() -> i32 { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/main.rs:45:9 [INFO] [stdout] | [INFO] [stdout] 45 | handle(Command::from_args()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `multipleReturnVal` should have a snake case name [INFO] [stdout] --> src/bin/main.rs:117:4 [INFO] [stdout] | [INFO] [stdout] 117 | fn multipleReturnVal(s: String) -> (String, usize) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `multiple_return_val` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `copyDeeply` should have a snake case name [INFO] [stdout] --> src/bin/main.rs:123:4 [INFO] [stdout] | [INFO] [stdout] 123 | fn copyDeeply() { [INFO] [stdout] | ^^^^^^^^^^ help: convert the identifier to snake case: `copy_deeply` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 16 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.36s [INFO] running `Command { std: "docker" "inspect" "ef365eb77ecfb0bd73759e5b7d38ef05d268c75ec9884b82d177a03e5946384b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef365eb77ecfb0bd73759e5b7d38ef05d268c75ec9884b82d177a03e5946384b", kill_on_drop: false }` [INFO] [stdout] ef365eb77ecfb0bd73759e5b7d38ef05d268c75ec9884b82d177a03e5946384b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 310ab04a41a721b9fa5dcc6a9e8d3f166ecd9559ce34f256311d63159ef46734 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "310ab04a41a721b9fa5dcc6a9e8d3f166ecd9559ce34f256311d63159ef46734", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `hello_cargo::test_code::t1` [INFO] [stderr] --> src/bin/main.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use hello_cargo::test_code::t1; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `word1` [INFO] [stderr] --> src/bin/main.rs:61:9 [INFO] [stderr] | [INFO] [stderr] 61 | let word1 = &my_str1[..]; [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_word1` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/bin/main.rs:59:15 [INFO] [stderr] | [INFO] [stderr] 59 | fn slice_show(s: &str) { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `User` [INFO] [stderr] --> src/bin/main.rs:16:8 [INFO] [stderr] | [INFO] [stderr] 16 | struct User { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: enum is never used: `Message` [INFO] [stderr] --> src/bin/main.rs:22:6 [INFO] [stderr] | [INFO] [stderr] 22 | enum Message { [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `first_word` [INFO] [stderr] --> src/bin/main.rs:78:4 [INFO] [stderr] | [INFO] [stderr] 78 | fn first_word(s: &String) -> &str { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `about_slice` [INFO] [stderr] --> src/bin/main.rs:89:4 [INFO] [stderr] | [INFO] [stderr] 89 | fn about_slice() { [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `ownership_change` [INFO] [stderr] --> src/bin/main.rs:100:4 [INFO] [stderr] | [INFO] [stderr] 100 | fn ownership_change() -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `mutable_ref_example` [INFO] [stderr] --> src/bin/main.rs:106:4 [INFO] [stderr] | [INFO] [stderr] 106 | fn mutable_ref_example(s: &mut String) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `reference_example` [INFO] [stderr] --> src/bin/main.rs:112:4 [INFO] [stderr] | [INFO] [stderr] 112 | fn reference_example(s: &String) -> usize { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `multipleReturnVal` [INFO] [stderr] --> src/bin/main.rs:117:4 [INFO] [stderr] | [INFO] [stderr] 117 | fn multipleReturnVal(s: String) -> (String, usize) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `copyDeeply` [INFO] [stderr] --> src/bin/main.rs:123:4 [INFO] [stderr] | [INFO] [stderr] 123 | fn copyDeeply() { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `five` [INFO] [stderr] --> src/bin/main.rs:131:4 [INFO] [stderr] | [INFO] [stderr] 131 | fn five() -> i32 { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/bin/main.rs:45:9 [INFO] [stderr] | [INFO] [stderr] 45 | handle(Command::from_args()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: function `multipleReturnVal` should have a snake case name [INFO] [stderr] --> src/bin/main.rs:117:4 [INFO] [stderr] | [INFO] [stderr] 117 | fn multipleReturnVal(s: String) -> (String, usize) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `multiple_return_val` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function `copyDeeply` should have a snake case name [INFO] [stderr] --> src/bin/main.rs:123:4 [INFO] [stderr] | [INFO] [stderr] 123 | fn copyDeeply() { [INFO] [stderr] | ^^^^^^^^^^ help: convert the identifier to snake case: `copy_deeply` [INFO] [stderr] [INFO] [stderr] warning: 16 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/hello_cargo-5f51aa190411b1e4) [INFO] [stdout] [INFO] [stdout] running 7 tests [INFO] [stdout] test rs_string::string::tests::test_is_space ... ok [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/main-ad839ee8981da953) [INFO] [stdout] test rs_string::string::tests::test_rm_string_duplicates ... ok [INFO] [stdout] test rs_string::string::tests::test_contains ... ok [INFO] [stdout] test rs_string::string::tests::test_permute_case ... ok [INFO] [stdout] test test_code::t1::tests::to_bytes ... ok [INFO] [stdout] test test_code::t1::tests::be_bytes ... ok [INFO] [stdout] test rs_string::highlight::tests::test_highlight_string ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] Doc-tests hello_cargo [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] [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" "310ab04a41a721b9fa5dcc6a9e8d3f166ecd9559ce34f256311d63159ef46734", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "310ab04a41a721b9fa5dcc6a9e8d3f166ecd9559ce34f256311d63159ef46734", kill_on_drop: false }` [INFO] [stdout] 310ab04a41a721b9fa5dcc6a9e8d3f166ecd9559ce34f256311d63159ef46734