[INFO] cloning repository https://github.com/bilibiliGO283/rust_error_handle [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bilibiliGO283/rust_error_handle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FbilibiliGO283%2Frust_error_handle", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FbilibiliGO283%2Frust_error_handle'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5380ecbd899193034a21c423e2ba3e21dcb1b50a [INFO] testing bilibiliGO283/rust_error_handle against 1.59.0 for beta-1.60-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FbilibiliGO283%2Frust_error_handle" "/workspace/builds/worker-11/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/bilibiliGO283/rust_error_handle on toolchain 1.59.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/bilibiliGO283/rust_error_handle [INFO] finished tweaking git repo https://github.com/bilibiliGO283/rust_error_handle [INFO] tweaked toml for git repo https://github.com/bilibiliGO283/rust_error_handle written to /workspace/builds/worker-11/source/Cargo.toml [INFO] crate git repo https://github.com/bilibiliGO283/rust_error_handle already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f39b7d50a851ce9adfba68e38a5db86470550e8eeb7e04894ed9bf156c95d3ba [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" "f39b7d50a851ce9adfba68e38a5db86470550e8eeb7e04894ed9bf156c95d3ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f39b7d50a851ce9adfba68e38a5db86470550e8eeb7e04894ed9bf156c95d3ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f39b7d50a851ce9adfba68e38a5db86470550e8eeb7e04894ed9bf156c95d3ba", kill_on_drop: false }` [INFO] [stdout] f39b7d50a851ce9adfba68e38a5db86470550e8eeb7e04894ed9bf156c95d3ba [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 527c718c556be215cad22866379bbaa8023675fa3132959b8cb2e6925c7fadb4 [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" "527c718c556be215cad22866379bbaa8023675fa3132959b8cb2e6925c7fadb4", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.19 [INFO] [stderr] Compiling libc v0.2.76 [INFO] [stderr] Compiling syn v1.0.39 [INFO] [stderr] Compiling proc-macro-hack v0.5.18 [INFO] [stderr] Compiling regex-syntax v0.6.18 [INFO] [stderr] Compiling thread_local v1.0.1 [INFO] [stderr] Compiling aho-corasick v0.7.13 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling rand v0.5.6 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling regex v1.3.9 [INFO] [stderr] Compiling dotenv_codegen_implementation v0.15.0 [INFO] [stderr] Compiling dotenv_codegen v0.15.0 [INFO] [stderr] Compiling myFirstRust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::ops::Mul` [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::ops::Mul; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::mem::swap` [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::mem::swap; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:126:32 [INFO] [stdout] | [INFO] [stdout] 126 | fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 126 - fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] 126 + fn cause(&self) -> Option<&dyn error::Error> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:117:42 [INFO] [stdout] | [INFO] [stdout] 117 | CliError::Io(ref err) => err.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:122:45 [INFO] [stdout] | [INFO] [stdout] 122 | CliError::Parse(ref err) => err.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:123:43 [INFO] [stdout] | [INFO] [stdout] 123 | CliError::Int(ref err) => err.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `double_arg` [INFO] [stdout] --> src/main.rs:16:4 [INFO] [stdout] | [INFO] [stdout] 16 | fn double_arg(mut argv: env::Args) -> Result { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `file_double_1` [INFO] [stdout] --> src/main.rs:23:4 [INFO] [stdout] | [INFO] [stdout] 23 | fn file_double_1>(file_path: P) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `file_double_2` [INFO] [stdout] --> src/main.rs:32:4 [INFO] [stdout] | [INFO] [stdout] 32 | fn file_double_2>(file_path: P) -> Result{ [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `file_double_3` [INFO] [stdout] --> src/main.rs:48:4 [INFO] [stdout] | [INFO] [stdout] 48 | fn file_double_3>(file_path: P) -> Result{ [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `mul1` [INFO] [stdout] --> src/main.rs:63:4 [INFO] [stdout] | [INFO] [stdout] 63 | fn mul1(a:i32,b:i32) -> Result { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `file_double_4` [INFO] [stdout] --> src/main.rs:76:4 [INFO] [stdout] | [INFO] [stdout] 76 | fn file_double_4>(file_path: P) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Int` [INFO] [stdout] --> src/main.rs:88:5 [INFO] [stdout] | [INFO] [stdout] 88 | Int(io::Error), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `myFirstRust` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `my_first_rust` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 37.89s [INFO] running `Command { std: "docker" "inspect" "527c718c556be215cad22866379bbaa8023675fa3132959b8cb2e6925c7fadb4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "527c718c556be215cad22866379bbaa8023675fa3132959b8cb2e6925c7fadb4", kill_on_drop: false }` [INFO] [stdout] 527c718c556be215cad22866379bbaa8023675fa3132959b8cb2e6925c7fadb4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--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] 1ba2d356b2c58c3b4d5e13999aa7bcdab2e18b1ca8c3a4f29c127a8abb4062ca [INFO] running `Command { std: "docker" "start" "-a" "1ba2d356b2c58c3b4d5e13999aa7bcdab2e18b1ca8c3a4f29c127a8abb4062ca", kill_on_drop: false }` [INFO] [stderr] Compiling myFirstRust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::ops::Mul` [INFO] [stdout] --> src/main.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::ops::Mul; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::mem::swap` [INFO] [stdout] --> src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::mem::swap; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:126:32 [INFO] [stdout] | [INFO] [stdout] 126 | fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 126 - fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] 126 + fn cause(&self) -> Option<&dyn error::Error> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:117:42 [INFO] [stdout] | [INFO] [stdout] 117 | CliError::Io(ref err) => err.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:122:45 [INFO] [stdout] | [INFO] [stdout] 122 | CliError::Parse(ref err) => err.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/main.rs:123:43 [INFO] [stdout] | [INFO] [stdout] 123 | CliError::Int(ref err) => err.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `double_arg` [INFO] [stdout] --> src/main.rs:16:4 [INFO] [stdout] | [INFO] [stdout] 16 | fn double_arg(mut argv: env::Args) -> Result { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `file_double_1` [INFO] [stdout] --> src/main.rs:23:4 [INFO] [stdout] | [INFO] [stdout] 23 | fn file_double_1>(file_path: P) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `file_double_2` [INFO] [stdout] --> src/main.rs:32:4 [INFO] [stdout] | [INFO] [stdout] 32 | fn file_double_2>(file_path: P) -> Result{ [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `file_double_3` [INFO] [stdout] --> src/main.rs:48:4 [INFO] [stdout] | [INFO] [stdout] 48 | fn file_double_3>(file_path: P) -> Result{ [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `mul1` [INFO] [stdout] --> src/main.rs:63:4 [INFO] [stdout] | [INFO] [stdout] 63 | fn mul1(a:i32,b:i32) -> Result { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `file_double_4` [INFO] [stdout] --> src/main.rs:76:4 [INFO] [stdout] | [INFO] [stdout] 76 | fn file_double_4>(file_path: P) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Int` [INFO] [stdout] --> src/main.rs:88:5 [INFO] [stdout] | [INFO] [stdout] 88 | Int(io::Error), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: crate `myFirstRust` should have a snake case name [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] = help: convert the identifier to snake case: `my_first_rust` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.90s [INFO] running `Command { std: "docker" "inspect" "1ba2d356b2c58c3b4d5e13999aa7bcdab2e18b1ca8c3a4f29c127a8abb4062ca", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1ba2d356b2c58c3b4d5e13999aa7bcdab2e18b1ca8c3a4f29c127a8abb4062ca", kill_on_drop: false }` [INFO] [stdout] 1ba2d356b2c58c3b4d5e13999aa7bcdab2e18b1ca8c3a4f29c127a8abb4062ca [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 08730a8ba1050841f76901f64ea08215c3cb420c8f01017f6977dc22c2d6b5eb [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" "08730a8ba1050841f76901f64ea08215c3cb420c8f01017f6977dc22c2d6b5eb", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `std::ops::Mul` [INFO] [stderr] --> src/main.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::ops::Mul; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::mem::swap` [INFO] [stderr] --> src/main.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use std::mem::swap; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:126:32 [INFO] [stderr] | [INFO] [stderr] 126 | fn cause(&self) -> Option<&error::Error> { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 126 - fn cause(&self) -> Option<&error::Error> { [INFO] [stderr] 126 + fn cause(&self) -> Option<&dyn error::Error> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stderr] --> src/main.rs:117:42 [INFO] [stderr] | [INFO] [stderr] 117 | CliError::Io(ref err) => err.description(), [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stderr] --> src/main.rs:122:45 [INFO] [stderr] | [INFO] [stderr] 122 | CliError::Parse(ref err) => err.description(), [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stderr] --> src/main.rs:123:43 [INFO] [stderr] | [INFO] [stderr] 123 | CliError::Int(ref err) => err.description(), [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `double_arg` [INFO] [stderr] --> src/main.rs:16:4 [INFO] [stderr] | [INFO] [stderr] 16 | fn double_arg(mut argv: env::Args) -> Result { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `file_double_1` [INFO] [stderr] --> src/main.rs:23:4 [INFO] [stderr] | [INFO] [stderr] 23 | fn file_double_1>(file_path: P) -> i32 { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `file_double_2` [INFO] [stderr] --> src/main.rs:32:4 [INFO] [stderr] | [INFO] [stderr] 32 | fn file_double_2>(file_path: P) -> Result{ [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `file_double_3` [INFO] [stderr] --> src/main.rs:48:4 [INFO] [stderr] | [INFO] [stderr] 48 | fn file_double_3>(file_path: P) -> Result{ [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `mul1` [INFO] [stderr] --> src/main.rs:63:4 [INFO] [stderr] | [INFO] [stderr] 63 | fn mul1(a:i32,b:i32) -> Result { [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `file_double_4` [INFO] [stderr] --> src/main.rs:76:4 [INFO] [stderr] | [INFO] [stderr] 76 | fn file_double_4>(file_path: P) -> Result { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Int` [INFO] [stderr] --> src/main.rs:88:5 [INFO] [stderr] | [INFO] [stderr] 88 | Int(io::Error), [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: crate `myFirstRust` should have a snake case name [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] = help: convert the identifier to snake case: `my_first_rust` [INFO] [stderr] [INFO] [stderr] warning: `myFirstRust` (bin "myFirstRust" test) generated 14 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/myFirstRust-533c89be3605e0f6) [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" "08730a8ba1050841f76901f64ea08215c3cb420c8f01017f6977dc22c2d6b5eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "08730a8ba1050841f76901f64ea08215c3cb420c8f01017f6977dc22c2d6b5eb", kill_on_drop: false }` [INFO] [stdout] 08730a8ba1050841f76901f64ea08215c3cb420c8f01017f6977dc22c2d6b5eb