[INFO] cloning repository https://github.com/SachinMaharana/sandbox-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SachinMaharana/sandbox-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSachinMaharana%2Fsandbox-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSachinMaharana%2Fsandbox-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b60a5f9dcaac956dead6f7fb54a430bd0e98c2a4 [INFO] checking SachinMaharana/sandbox-rust against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSachinMaharana%2Fsandbox-rust" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/SachinMaharana/sandbox-rust on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/SachinMaharana/sandbox-rust [INFO] finished tweaking git repo https://github.com/SachinMaharana/sandbox-rust [INFO] tweaked toml for git repo https://github.com/SachinMaharana/sandbox-rust written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/SachinMaharana/sandbox-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--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 isahc v0.8.2 [INFO] [stderr] Downloaded console v0.7.7 [INFO] [stderr] Downloaded attohttpc v0.12.0 [INFO] [stderr] Downloaded async-log-attributes v1.0.1 [INFO] [stderr] Downloaded libnghttp2-sys v0.1.3 [INFO] [stderr] Downloaded security-framework-sys v0.4.2 [INFO] [stderr] Downloaded curl v0.4.28 [INFO] [stderr] Downloaded openssl-sys v0.9.55 [INFO] [stderr] Downloaded sparkpost v0.5.3 [INFO] [stderr] Downloaded surf v2.0.0-alpha.0 [INFO] [stderr] Downloaded http-client v1.1.1 [INFO] [stderr] Downloaded schannel v0.1.18 [INFO] [stderr] Downloaded security-framework v0.4.2 [INFO] [stderr] Downloaded telegram-bot-raw v0.7.0 [INFO] [stderr] Downloaded curl-sys v0.4.30+curl-7.69.1 [INFO] [stderr] Downloaded async-log v1.1.0 [INFO] [stderr] Downloaded femme v1.3.0 [INFO] [stderr] Downloaded tokio v0.2.17 [INFO] [stderr] Downloaded telegram-bot v0.7.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a21c7d344a591e3e0840971f285d33f1c19a7ecab14c6a4b92ffbeed401d0875 [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" "a21c7d344a591e3e0840971f285d33f1c19a7ecab14c6a4b92ffbeed401d0875", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a21c7d344a591e3e0840971f285d33f1c19a7ecab14c6a4b92ffbeed401d0875", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a21c7d344a591e3e0840971f285d33f1c19a7ecab14c6a4b92ffbeed401d0875", kill_on_drop: false }` [INFO] [stdout] a21c7d344a591e3e0840971f285d33f1c19a7ecab14c6a4b92ffbeed401d0875 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--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] c6528a2e8464420ecb6fae5a1e39a8d4037453ef4427894428a51d08db8bc631 [INFO] running `Command { std: "docker" "start" "-a" "c6528a2e8464420ecb6fae5a1e39a8d4037453ef4427894428a51d08db8bc631", kill_on_drop: false }` [INFO] [stderr] Compiling curl v0.4.28 [INFO] [stderr] Compiling isahc v0.8.2 [INFO] [stderr] Compiling libnghttp2-sys v0.1.3 [INFO] [stderr] Compiling libz-sys v1.0.25 [INFO] [stderr] Compiling curl-sys v0.4.30+curl-7.69.1 [INFO] [stderr] Compiling openssl-sys v0.9.55 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Checking tokio-sync v0.1.8 [INFO] [stderr] Compiling error-chain v0.12.2 [INFO] [stderr] Checking idna v0.1.5 [INFO] [stderr] Checking want v0.3.0 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking want v0.2.0 [INFO] [stderr] Checking parking_lot_core v0.7.1 [INFO] [stderr] Checking socket2 v0.3.12 [INFO] [stderr] Checking termios v0.3.2 [INFO] [stderr] Checking clicolors-control v1.0.1 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking futures-cpupool v0.1.8 [INFO] [stderr] Checking mime v0.2.6 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking parking_lot v0.10.2 [INFO] [stderr] Checking uuid v0.7.4 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Checking tokio-threadpool v0.1.18 [INFO] [stderr] Checking parking_lot v0.9.0 [INFO] [stderr] Checking tokio-io v0.1.13 [INFO] [stderr] Checking http v0.1.21 [INFO] [stderr] Checking tokio-buf v0.1.1 [INFO] [stderr] Checking string v0.2.1 [INFO] [stderr] Checking console v0.7.7 [INFO] [stderr] Compiling phf_codegen v0.7.24 [INFO] [stderr] Checking url v1.7.2 [INFO] [stderr] Checking publicsuffix v1.5.4 [INFO] [stderr] Compiling mime_guess v1.8.8 [INFO] [stderr] Compiling openssl v0.10.29 [INFO] [stderr] Compiling native-tls v0.2.4 [INFO] [stderr] Checking tokio-reactor v0.1.12 [INFO] [stderr] Checking tokio-tcp v0.1.4 [INFO] [stderr] Checking cookie v0.12.0 [INFO] [stderr] Checking ordered-float v1.0.2 [INFO] [stderr] Checking num-integer v0.1.42 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stderr] Checking multipart v0.16.1 [INFO] [stderr] Checking http-body v0.1.0 [INFO] [stderr] Checking h2 v0.1.26 [INFO] [stderr] Checking attohttpc v0.12.0 [INFO] [stderr] Compiling async-log-attributes v1.0.1 [INFO] [stderr] Checking hyper v0.12.35 [INFO] [stderr] Compiling synstructure v0.12.3 [INFO] [stderr] Checking async-log v1.1.0 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Compiling futures-macro v0.3.4 [INFO] [stderr] Compiling tokio-macros v0.2.5 [INFO] [stderr] Compiling pin-project-internal v0.4.8 [INFO] [stderr] Compiling failure_derive v0.1.7 [INFO] [stderr] Compiling tracing-attributes v0.1.7 [INFO] [stderr] Compiling async-attributes v1.1.1 [INFO] [stderr] Checking hyper-tls v0.3.2 [INFO] [stderr] Checking tokio v0.2.17 [INFO] [stderr] Checking failure v0.1.7 [INFO] [stderr] Checking futures-util v0.3.4 [INFO] [stderr] Checking tracing v0.1.13 [INFO] [stderr] Checking pin-project v0.4.8 [INFO] [stderr] Checking tracing-futures v0.2.3 [INFO] [stderr] Checking futures-executor v0.3.4 [INFO] [stderr] Checking sluice v0.5.2 [INFO] [stderr] Checking broadcaster v1.0.0 [INFO] [stderr] Checking async-std v1.5.0 [INFO] [stderr] Checking tokio-util v0.3.1 [INFO] [stderr] Checking tokio-tls v0.3.0 [INFO] [stderr] Checking futures v0.3.4 [INFO] [stderr] Checking http-client v1.1.1 [INFO] [stderr] Checking h2 v0.2.4 [INFO] [stderr] Checking serde v1.0.106 [INFO] [stderr] Checking hyper v0.13.4 [INFO] [stderr] Checking serde_json v1.0.51 [INFO] [stderr] Checking serde_urlencoded v0.6.1 [INFO] [stderr] Checking serde-value v0.5.3 [INFO] [stderr] Checking serde_urlencoded v0.5.5 [INFO] [stderr] Checking chrono v0.4.11 [INFO] [stderr] Checking hyper-tls v0.4.1 [INFO] [stderr] Checking cookie_store v0.7.0 [INFO] [stderr] Checking telegram-bot-raw v0.7.0 [INFO] [stderr] Checking reqwest v0.10.4 [INFO] [stderr] Checking surf v2.0.0-alpha.0 [INFO] [stderr] Checking femme v1.3.0 [INFO] [stderr] Checking reqwest v0.9.24 [INFO] [stderr] Checking sparkpost v0.5.3 [INFO] [stderr] Checking telegram-bot v0.7.0 [INFO] [stderr] Checking sandbox v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `self` [INFO] [stdout] --> src/bin/pr-error.rs:16:15 [INFO] [stdout] | [INFO] [stdout] 16 | use std::io::{self, BufRead}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `GenError` [INFO] [stdout] --> src/bin/pr-error.rs:17:1 [INFO] [stdout] | [INFO] [stdout] 17 | type GenError = Box; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `GenResult` [INFO] [stdout] --> src/bin/pr-error.rs:18:1 [INFO] [stdout] | [INFO] [stdout] 18 | type GenResult = Result; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `read_numbers` [INFO] [stdout] --> src/bin/pr-error.rs:20:4 [INFO] [stdout] | [INFO] [stdout] 20 | fn read_numbers(file: &mut dyn BufRead) -> GenResult> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `self` [INFO] [stdout] --> src/bin/pr-error.rs:16:15 [INFO] [stdout] | [INFO] [stdout] 16 | use std::io::{self, BufRead}; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `GenError` [INFO] [stdout] --> src/bin/pr-error.rs:17:1 [INFO] [stdout] | [INFO] [stdout] 17 | type GenError = Box; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias is never used: `GenResult` [INFO] [stdout] --> src/bin/pr-error.rs:18:1 [INFO] [stdout] | [INFO] [stdout] 18 | type GenResult = Result; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `read_numbers` [INFO] [stdout] --> src/bin/pr-error.rs:20:4 [INFO] [stdout] | [INFO] [stdout] 20 | fn read_numbers(file: &mut dyn BufRead) -> GenResult> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type uses owned (Box type) pointers: Box [INFO] [stdout] --> src/bin/docs1.rs:7:13 [INFO] [stdout] | [INFO] [stdout] 7 | let b = Box::new(5); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/bin/docs1.rs:5:13 [INFO] [stdout] | [INFO] [stdout] 5 | #![warn(box_pointers)] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type uses owned (Box type) pointers: &Box [INFO] [stdout] --> src/bin/docs1.rs:8:22 [INFO] [stdout] | [INFO] [stdout] 8 | println!("b={}", b); [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type uses owned (Box type) pointers: Box [INFO] [stdout] --> src/bin/docs1.rs:8:22 [INFO] [stdout] | [INFO] [stdout] 8 | println!("b={}", b); [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type uses owned (Box type) pointers: Box [INFO] [stdout] --> src/bin/docs1.rs:10:25 [INFO] [stdout] | [INFO] [stdout] 10 | let _list = Cons(1, Box::new(Cons(2, Box::new(Cons(3, Box::new(Nil)))))); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type uses owned (Box type) pointers: Box [INFO] [stdout] --> src/bin/docs1.rs:10:42 [INFO] [stdout] | [INFO] [stdout] 10 | let _list = Cons(1, Box::new(Cons(2, Box::new(Cons(3, Box::new(Nil)))))); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type uses owned (Box type) pointers: Box [INFO] [stdout] --> src/bin/docs1.rs:10:59 [INFO] [stdout] | [INFO] [stdout] 10 | let _list = Cons(1, Box::new(Cons(2, Box::new(Cons(3, Box::new(Nil)))))); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type uses owned (Box type) pointers: Box [INFO] [stdout] --> src/bin/docs1.rs:14:13 [INFO] [stdout] | [INFO] [stdout] 14 | let z = Box::new(x); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type uses owned (Box type) pointers: Box [INFO] [stdout] --> src/bin/docs1.rs:18:20 [INFO] [stdout] | [INFO] [stdout] 18 | assert_eq!(5, *z); [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/bin/begin1.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let y = arr.clone(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type uses owned (Box type) pointers: Box [INFO] [stdout] --> src/bin/docs1.rs:7:13 [INFO] [stdout] | [INFO] [stdout] 7 | let b = Box::new(5); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/bin/docs1.rs:5:13 [INFO] [stdout] | [INFO] [stdout] 5 | #![warn(box_pointers)] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type uses owned (Box type) pointers: &Box [INFO] [stdout] --> src/bin/docs1.rs:8:22 [INFO] [stdout] | [INFO] [stdout] 8 | println!("b={}", b); [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type uses owned (Box type) pointers: Box [INFO] [stdout] --> src/bin/docs1.rs:8:22 [INFO] [stdout] | [INFO] [stdout] 8 | println!("b={}", b); [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type uses owned (Box type) pointers: Box [INFO] [stdout] --> src/bin/docs1.rs:10:25 [INFO] [stdout] | [INFO] [stdout] 10 | let _list = Cons(1, Box::new(Cons(2, Box::new(Cons(3, Box::new(Nil)))))); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type uses owned (Box type) pointers: Box [INFO] [stdout] --> src/bin/docs1.rs:10:42 [INFO] [stdout] | [INFO] [stdout] 10 | let _list = Cons(1, Box::new(Cons(2, Box::new(Cons(3, Box::new(Nil)))))); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type uses owned (Box type) pointers: Box [INFO] [stdout] --> src/bin/docs1.rs:10:59 [INFO] [stdout] | [INFO] [stdout] 10 | let _list = Cons(1, Box::new(Cons(2, Box::new(Cons(3, Box::new(Nil)))))); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type uses owned (Box type) pointers: Box [INFO] [stdout] --> src/bin/docs1.rs:14:13 [INFO] [stdout] | [INFO] [stdout] 14 | let z = Box::new(x); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type uses owned (Box type) pointers: Box [INFO] [stdout] --> src/bin/docs1.rs:18:20 [INFO] [stdout] | [INFO] [stdout] 18 | assert_eq!(5, *z); [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::future::join_all` [INFO] [stdout] --> src/bin/asyn2.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use futures::future::join_all; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> src/bin/from.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let x: String = String::from("Hello"); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/bin/asyn2.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | t.await; [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: unused variable: `x` [INFO] [stdout] --> src/bin/from.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let x: String = String::from("Hello"); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `futures::future::join_all` [INFO] [stdout] --> src/bin/asyn2.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use futures::future::join_all; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0601]: `main` function not found in crate `test` [INFO] [stdout] | [INFO] [stdout] = note: consider adding a `main` function to `src/bin/test.rs` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0601`. [INFO] [stdout] [INFO] [stderr] error: could not compile `sandbox` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/bin/asyn2.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 36 | t.await; [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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> src/bin/begin1.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let y = arr.clone(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "c6528a2e8464420ecb6fae5a1e39a8d4037453ef4427894428a51d08db8bc631", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c6528a2e8464420ecb6fae5a1e39a8d4037453ef4427894428a51d08db8bc631", kill_on_drop: false }` [INFO] [stdout] c6528a2e8464420ecb6fae5a1e39a8d4037453ef4427894428a51d08db8bc631