[INFO] cloning repository https://github.com/harishym/excercise1 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/harishym/excercise1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharishym%2Fexcercise1", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharishym%2Fexcercise1'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b31df793466d5de10ae804ba57f96eb744d1ac30 [INFO] testing harishym/excercise1 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharishym%2Fexcercise1" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/harishym/excercise1 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/harishym/excercise1 [INFO] finished tweaking git repo https://github.com/harishym/excercise1 [INFO] tweaked toml for git repo https://github.com/harishym/excercise1 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/harishym/excercise1 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", 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] 9d38f1ef44131fc8ff598c9363884e6e4395eeea0c67eadf046522f0bcfecf64 [INFO] running `Command { std: "docker" "start" "-a" "9d38f1ef44131fc8ff598c9363884e6e4395eeea0c67eadf046522f0bcfecf64", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9d38f1ef44131fc8ff598c9363884e6e4395eeea0c67eadf046522f0bcfecf64", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9d38f1ef44131fc8ff598c9363884e6e4395eeea0c67eadf046522f0bcfecf64", kill_on_drop: false }` [INFO] [stdout] 9d38f1ef44131fc8ff598c9363884e6e4395eeea0c67eadf046522f0bcfecf64 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 028c1a76e29c68310fd3dc80e22277c2ca4eb6853410f1a31b7bc7cd3ac87648 [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" "028c1a76e29c68310fd3dc80e22277c2ca4eb6853410f1a31b7bc7cd3ac87648", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling libc v0.2.68 [INFO] [stderr] Compiling unicode-width v0.1.7 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling strsim v0.6.0 [INFO] [stderr] Compiling ansi_term v0.9.0 [INFO] [stderr] Compiling textwrap v0.9.0 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Compiling time v0.1.42 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling clap v2.27.1 [INFO] [stderr] Compiling chrono v0.4.11 [INFO] [stderr] Compiling try v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable `Y` should have a snake case name [INFO] [stdout] --> src/lib.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 28 | let Y = now.format("%Y").to_string(); [INFO] [stdout] | ^ help: convert the identifier to snake case (notice the capitalization): `y` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `D` should have a snake case name [INFO] [stdout] --> src/lib.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 29 | let D = now.format("%d").to_string(); [INFO] [stdout] | ^ help: convert the identifier to snake case: `d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `M` should have a snake case name [INFO] [stdout] --> src/lib.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | let M = now.format("%m").to_string(); [INFO] [stdout] | ^ help: convert the identifier to snake case: `m` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `Fin` should have a snake case name [INFO] [stdout] --> src/lib.rs:48:1 [INFO] [stdout] | [INFO] [stdout] 48 | Fin: String, [INFO] [stdout] | ^^^ help: convert the identifier to snake case (notice the capitalization): `fin` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `Lan` should have a snake case name [INFO] [stdout] --> src/lib.rs:49:1 [INFO] [stdout] | [INFO] [stdout] 49 | Lan: String, [INFO] [stdout] | ^^^ help: convert the identifier to snake case: `lan` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:83:3 [INFO] [stdout] | [INFO] [stdout] 83 | writeln!(f1, "{}, {}, {}", person.Fin, person.Lan, age); [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] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 14.27s [INFO] running `Command { std: "docker" "inspect" "028c1a76e29c68310fd3dc80e22277c2ca4eb6853410f1a31b7bc7cd3ac87648", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "028c1a76e29c68310fd3dc80e22277c2ca4eb6853410f1a31b7bc7cd3ac87648", kill_on_drop: false }` [INFO] [stdout] 028c1a76e29c68310fd3dc80e22277c2ca4eb6853410f1a31b7bc7cd3ac87648 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d51518627a62cb86f8dfa7dd76dfa6e2cccb4bb5c6ae68d7665c6c7663067da3 [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" "d51518627a62cb86f8dfa7dd76dfa6e2cccb4bb5c6ae68d7665c6c7663067da3", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling try v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable `Y` should have a snake case name [INFO] [stdout] --> src/lib.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 28 | let Y = now.format("%Y").to_string(); [INFO] [stdout] | ^ help: convert the identifier to snake case (notice the capitalization): `y` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `D` should have a snake case name [INFO] [stdout] --> src/lib.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 29 | let D = now.format("%d").to_string(); [INFO] [stdout] | ^ help: convert the identifier to snake case: `d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `M` should have a snake case name [INFO] [stdout] --> src/lib.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | let M = now.format("%m").to_string(); [INFO] [stdout] | ^ help: convert the identifier to snake case: `m` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `Fin` should have a snake case name [INFO] [stdout] --> src/lib.rs:48:1 [INFO] [stdout] | [INFO] [stdout] 48 | Fin: String, [INFO] [stdout] | ^^^ help: convert the identifier to snake case (notice the capitalization): `fin` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `Lan` should have a snake case name [INFO] [stdout] --> src/lib.rs:49:1 [INFO] [stdout] | [INFO] [stdout] 49 | Lan: String, [INFO] [stdout] | ^^^ help: convert the identifier to snake case: `lan` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:83:3 [INFO] [stdout] | [INFO] [stdout] 83 | writeln!(f1, "{}, {}, {}", person.Fin, person.Lan, age); [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] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `Y` should have a snake case name [INFO] [stdout] --> src/lib.rs:28:5 [INFO] [stdout] | [INFO] [stdout] 28 | let Y = now.format("%Y").to_string(); [INFO] [stdout] | ^ help: convert the identifier to snake case (notice the capitalization): `y` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `D` should have a snake case name [INFO] [stdout] --> src/lib.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 29 | let D = now.format("%d").to_string(); [INFO] [stdout] | ^ help: convert the identifier to snake case: `d` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `M` should have a snake case name [INFO] [stdout] --> src/lib.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | let M = now.format("%m").to_string(); [INFO] [stdout] | ^ help: convert the identifier to snake case: `m` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `Fin` should have a snake case name [INFO] [stdout] --> src/lib.rs:48:1 [INFO] [stdout] | [INFO] [stdout] 48 | Fin: String, [INFO] [stdout] | ^^^ help: convert the identifier to snake case (notice the capitalization): `fin` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `Lan` should have a snake case name [INFO] [stdout] --> src/lib.rs:49:1 [INFO] [stdout] | [INFO] [stdout] 49 | Lan: String, [INFO] [stdout] | ^^^ help: convert the identifier to snake case: `lan` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:83:3 [INFO] [stdout] | [INFO] [stdout] 83 | writeln!(f1, "{}, {}, {}", person.Fin, person.Lan, age); [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] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.05s [INFO] running `Command { std: "docker" "inspect" "d51518627a62cb86f8dfa7dd76dfa6e2cccb4bb5c6ae68d7665c6c7663067da3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d51518627a62cb86f8dfa7dd76dfa6e2cccb4bb5c6ae68d7665c6c7663067da3", kill_on_drop: false }` [INFO] [stdout] d51518627a62cb86f8dfa7dd76dfa6e2cccb4bb5c6ae68d7665c6c7663067da3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] c0bb9d3e7afef8933723391d72c27800d9cf02e0e07e4c20e05dfe7908ac269b [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" "c0bb9d3e7afef8933723391d72c27800d9cf02e0e07e4c20e05dfe7908ac269b", kill_on_drop: false }` [INFO] [stderr] warning: variable `Y` should have a snake case name [INFO] [stderr] --> src/lib.rs:28:5 [INFO] [stderr] | [INFO] [stderr] 28 | let Y = now.format("%Y").to_string(); [INFO] [stderr] | ^ help: convert the identifier to snake case (notice the capitalization): `y` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `D` should have a snake case name [INFO] [stderr] --> src/lib.rs:29:5 [INFO] [stderr] | [INFO] [stderr] 29 | let D = now.format("%d").to_string(); [INFO] [stderr] | ^ help: convert the identifier to snake case: `d` [INFO] [stderr] [INFO] [stderr] warning: variable `M` should have a snake case name [INFO] [stderr] --> src/lib.rs:30:5 [INFO] [stderr] | [INFO] [stderr] 30 | let M = now.format("%m").to_string(); [INFO] [stderr] | ^ help: convert the identifier to snake case: `m` [INFO] [stderr] [INFO] [stderr] warning: structure field `Fin` should have a snake case name [INFO] [stderr] --> src/lib.rs:48:1 [INFO] [stderr] | [INFO] [stderr] 48 | Fin: String, [INFO] [stderr] | ^^^ help: convert the identifier to snake case (notice the capitalization): `fin` [INFO] [stderr] [INFO] [stderr] warning: structure field `Lan` should have a snake case name [INFO] [stderr] --> src/lib.rs:49:1 [INFO] [stderr] | [INFO] [stderr] 49 | Lan: String, [INFO] [stderr] | ^^^ help: convert the identifier to snake case: `lan` [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/lib.rs:83:3 [INFO] [stderr] | [INFO] [stderr] 83 | writeln!(f1, "{}, {}, {}", person.Fin, person.Lan, age); [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] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: 6 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: variable `Y` should have a snake case name [INFO] [stderr] --> src/lib.rs:28:5 [INFO] [stderr] | [INFO] [stderr] 28 | let Y = now.format("%Y").to_string(); [INFO] [stderr] | ^ help: convert the identifier to snake case (notice the capitalization): `y` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable `D` should have a snake case name [INFO] [stderr] --> src/lib.rs:29:5 [INFO] [stderr] | [INFO] [stderr] 29 | let D = now.format("%d").to_string(); [INFO] [stderr] | ^ help: convert the identifier to snake case: `d` [INFO] [stderr] [INFO] [stderr] warning: variable `M` should have a snake case name [INFO] [stderr] --> src/lib.rs:30:5 [INFO] [stderr] | [INFO] [stderr] 30 | let M = now.format("%m").to_string(); [INFO] [stderr] | ^ help: convert the identifier to snake case: `m` [INFO] [stderr] [INFO] [stderr] warning: structure field `Fin` should have a snake case name [INFO] [stderr] --> src/lib.rs:48:1 [INFO] [stderr] | [INFO] [stderr] 48 | Fin: String, [INFO] [stderr] | ^^^ help: convert the identifier to snake case (notice the capitalization): `fin` [INFO] [stderr] [INFO] [stderr] warning: structure field `Lan` should have a snake case name [INFO] [stderr] --> src/lib.rs:49:1 [INFO] [stderr] | [INFO] [stderr] 49 | Lan: String, [INFO] [stderr] | ^^^ help: convert the identifier to snake case: `lan` [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/lib.rs:83:3 [INFO] [stderr] | [INFO] [stderr] 83 | writeln!(f1, "{}, {}, {}", person.Fin, person.Lan, age); [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] = note: this warning originates in the macro `writeln` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: 6 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/lib-276876183bf1c9d7) [INFO] [stdout] running 0 tests [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/try-bb9bfbec74435b18) [INFO] [stdout] [INFO] [stderr] Doc-tests lib [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] [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" "c0bb9d3e7afef8933723391d72c27800d9cf02e0e07e4c20e05dfe7908ac269b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c0bb9d3e7afef8933723391d72c27800d9cf02e0e07e4c20e05dfe7908ac269b", kill_on_drop: false }` [INFO] [stdout] c0bb9d3e7afef8933723391d72c27800d9cf02e0e07e4c20e05dfe7908ac269b