[INFO] cloning repository https://github.com/sdsc-ordes/rust-workshop [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sdsc-ordes/rust-workshop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdsc-ordes%2Frust-workshop", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdsc-ordes%2Frust-workshop'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cc17ea5c310dd026b00c864f4ce7307588cfa99a [INFO] checking sdsc-ordes/rust-workshop against try#9d63f825c0d409b0e1743a2c84b33f86965e5929 for pr-136968 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdsc-ordes%2Frust-workshop" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sdsc-ordes/rust-workshop on toolchain 9d63f825c0d409b0e1743a2c84b33f86965e5929 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-1-tc2/source/.cargo/config.toml [INFO] removed /workspace/builds/worker-1-tc2/source/rust-toolchain.toml [INFO] started tweaking git repo https://github.com/sdsc-ordes/rust-workshop [INFO] finished tweaking git repo https://github.com/sdsc-ordes/rust-workshop [INFO] tweaked toml for git repo https://github.com/sdsc-ordes/rust-workshop written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/sdsc-ordes/rust-workshop 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" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "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 [ERROR] error running command: no output for 300 seconds [INFO] checking sdsc-ordes/rust-workshop against try#9d63f825c0d409b0e1743a2c84b33f86965e5929 for pr-136968 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdsc-ordes%2Frust-workshop" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sdsc-ordes/rust-workshop on toolchain 9d63f825c0d409b0e1743a2c84b33f86965e5929 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-1-tc2/source/.cargo/config.toml [INFO] removed /workspace/builds/worker-1-tc2/source/rust-toolchain.toml [INFO] started tweaking git repo https://github.com/sdsc-ordes/rust-workshop [INFO] finished tweaking git repo https://github.com/sdsc-ordes/rust-workshop [INFO] tweaked toml for git repo https://github.com/sdsc-ordes/rust-workshop written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/sdsc-ordes/rust-workshop 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" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "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 [ERROR] error running command: no output for 300 seconds [INFO] checking sdsc-ordes/rust-workshop against try#9d63f825c0d409b0e1743a2c84b33f86965e5929 for pr-136968 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdsc-ordes%2Frust-workshop" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sdsc-ordes/rust-workshop on toolchain 9d63f825c0d409b0e1743a2c84b33f86965e5929 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-1-tc2/source/.cargo/config.toml [INFO] removed /workspace/builds/worker-1-tc2/source/rust-toolchain.toml [INFO] started tweaking git repo https://github.com/sdsc-ordes/rust-workshop [INFO] finished tweaking git repo https://github.com/sdsc-ordes/rust-workshop [INFO] tweaked toml for git repo https://github.com/sdsc-ordes/rust-workshop written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/sdsc-ordes/rust-workshop 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" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "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 [ERROR] error running command: no output for 300 seconds [INFO] checking sdsc-ordes/rust-workshop against try#9d63f825c0d409b0e1743a2c84b33f86965e5929 for pr-136968 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdsc-ordes%2Frust-workshop" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sdsc-ordes/rust-workshop on toolchain 9d63f825c0d409b0e1743a2c84b33f86965e5929 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-1-tc2/source/.cargo/config.toml [INFO] removed /workspace/builds/worker-1-tc2/source/rust-toolchain.toml [INFO] started tweaking git repo https://github.com/sdsc-ordes/rust-workshop [INFO] finished tweaking git repo https://github.com/sdsc-ordes/rust-workshop [INFO] tweaked toml for git repo https://github.com/sdsc-ordes/rust-workshop written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/sdsc-ordes/rust-workshop 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" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "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 [ERROR] error running command: no output for 300 seconds [INFO] checking sdsc-ordes/rust-workshop against try#9d63f825c0d409b0e1743a2c84b33f86965e5929 for pr-136968 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdsc-ordes%2Frust-workshop" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sdsc-ordes/rust-workshop on toolchain 9d63f825c0d409b0e1743a2c84b33f86965e5929 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-1-tc2/source/.cargo/config.toml [INFO] removed /workspace/builds/worker-1-tc2/source/rust-toolchain.toml [INFO] started tweaking git repo https://github.com/sdsc-ordes/rust-workshop [INFO] finished tweaking git repo https://github.com/sdsc-ordes/rust-workshop [INFO] tweaked toml for git repo https://github.com/sdsc-ordes/rust-workshop written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/sdsc-ordes/rust-workshop 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" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c22b65b13dbd27246f09e8ea446557b14a9eca108ef0bddb08964967536bc7e3 [INFO] running `Command { std: "docker" "start" "-a" "c22b65b13dbd27246f09e8ea446557b14a9eca108ef0bddb08964967536bc7e3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c22b65b13dbd27246f09e8ea446557b14a9eca108ef0bddb08964967536bc7e3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c22b65b13dbd27246f09e8ea446557b14a9eca108ef0bddb08964967536bc7e3", kill_on_drop: false }` [INFO] [stdout] c22b65b13dbd27246f09e8ea446557b14a9eca108ef0bddb08964967536bc7e3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9d63f825c0d409b0e1743a2c84b33f86965e5929" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c246c50972afe3173bb0c54bd45298bc0268e7b5e7a874ff39b710e1c47fe8cb [INFO] running `Command { std: "docker" "start" "-a" "c246c50972afe3173bb0c54bd45298bc0268e7b5e7a874ff39b710e1c47fe8cb", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.93 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling libc v0.2.155 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling serde v1.0.204 [INFO] [stderr] Checking itoa v1.0.11 [INFO] [stderr] Checking hashbrown v0.14.5 [INFO] [stderr] Checking equivalent v1.0.1 [INFO] [stderr] Checking ryu v1.0.18 [INFO] [stderr] Compiling serde_json v1.0.121 [INFO] [stderr] Checking unsafe-libyaml v0.2.11 [INFO] [stderr] Checking memchr v2.7.4 [INFO] [stderr] Checking basic-syntax v0.1.0 (/opt/rustwide/workdir/exercises/basic-syntax) [INFO] [stderr] Checking borrowing v0.1.0 (/opt/rustwide/workdir/exercises/borrowing) [INFO] [stderr] Checking ring-buffer v0.1.0 (/opt/rustwide/workdir/exercises/ring-buffer) [INFO] [stderr] Checking lifetimes v0.1.0 (/opt/rustwide/workdir/exercises/lifetimes) [INFO] [stderr] Checking drop-with-errors v0.1.0 (/opt/rustwide/workdir/exercises/drop-with-errors) [INFO] [stdout] warning: unused variable: `start` [INFO] [stdout] --> exercises/basic-syntax/src/bin/06.rs:15:10 [INFO] [stdout] | [INFO] [stdout] 15 | fn speed(start: u32, end: u32, time_elapsed: u32) -> u32 { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_start` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `end` [INFO] [stdout] --> exercises/basic-syntax/src/bin/06.rs:15:22 [INFO] [stdout] | [INFO] [stdout] 15 | fn speed(start: u32, end: u32, time_elapsed: u32) -> u32 { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_end` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `time_elapsed` [INFO] [stdout] --> exercises/basic-syntax/src/bin/06.rs:15:32 [INFO] [stdout] | [INFO] [stdout] 15 | fn speed(start: u32, end: u32, time_elapsed: u32) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_time_elapsed` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0106]: missing lifetime specifier [INFO] [stdout] --> exercises/lifetimes/src/bin/03.rs:5:13 [INFO] [stdout] | [INFO] [stdout] 5 | author: &str, [INFO] [stdout] | ^ expected named lifetime parameter [INFO] [stdout] | [INFO] [stdout] help: consider introducing a named lifetime parameter [INFO] [stdout] | [INFO] [stdout] 4 ~ struct Book<'a> { [INFO] [stdout] 5 ~ author: &'a str, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0106]: missing lifetime specifier [INFO] [stdout] --> exercises/lifetimes/src/bin/03.rs:6:12 [INFO] [stdout] | [INFO] [stdout] 6 | title: &str, [INFO] [stdout] | ^ expected named lifetime parameter [INFO] [stdout] | [INFO] [stdout] help: consider introducing a named lifetime parameter [INFO] [stdout] | [INFO] [stdout] 4 ~ struct Book<'a> { [INFO] [stdout] 5 | author: &str, [INFO] [stdout] 6 ~ title: &'a str, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking error-handling v0.1.0 (/opt/rustwide/workdir/exercises/error-handling) [INFO] [stdout] warning: function `make_box` is never used [INFO] [stdout] --> exercises/ring-buffer/src/main.rs:73:4 [INFO] [stdout] | [INFO] [stdout] 73 | fn make_box(reqsize: usize) -> Box<[u8]> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0106`. [INFO] [stdout] [INFO] [stdout] error[E0382]: borrow of moved value: `data` [INFO] [stdout] --> exercises/borrowing/src/bin/02.rs:8:22 [INFO] [stdout] | [INFO] [stdout] 4 | let data = "Rust is great!".to_string(); [INFO] [stdout] | ---- move occurs because `data` has type `String`, which does not implement the `Copy` trait [INFO] [stdout] 5 | [INFO] [stdout] 6 | get_char(data); [INFO] [stdout] | ---- value moved here [INFO] [stdout] 7 | [INFO] [stdout] 8 | string_uppercase(&data); [INFO] [stdout] | ^^^^^ value borrowed here after move [INFO] [stdout] | [INFO] [stdout] note: consider changing this parameter type in function `get_char` to borrow instead if owning the value isn't necessary [INFO] [stdout] --> exercises/borrowing/src/bin/02.rs:12:19 [INFO] [stdout] | [INFO] [stdout] 12 | fn get_char(data: String) -> char { [INFO] [stdout] | -------- ^^^^^^ this parameter takes ownership of the value [INFO] [stdout] | | [INFO] [stdout] | in this function [INFO] [stdout] help: consider cloning the value if the performance cost is acceptable [INFO] [stdout] | [INFO] [stdout] 6 | get_char(data.clone()); [INFO] [stdout] | ++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `lifetimes` (bin "03" test) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0716]: temporary value dropped while borrowed [INFO] [stdout] --> exercises/borrowing/src/bin/02.rs:18:13 [INFO] [stdout] | [INFO] [stdout] 17 | fn string_uppercase(mut data: &String) { [INFO] [stdout] | - let's call the lifetime of this reference `'1` [INFO] [stdout] 18 | data = &data.to_uppercase(); [INFO] [stdout] | --------^^^^^^^^^^^^^^^^^^^- temporary value is freed at the end of this statement [INFO] [stdout] | | | [INFO] [stdout] | | creates a temporary value which is freed while still in use [INFO] [stdout] | assignment requires that borrow lasts for `'1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0382, E0716. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0382`. [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> exercises/drop-with-errors/src/bin/01.rs:31:19 [INFO] [stdout] | [INFO] [stdout] 31 | struct Handle(String); [INFO] [stdout] | ------ ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `Handle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `file_handle` is never read [INFO] [stdout] --> exercises/drop-with-errors/src/bin/01.rs:36:9 [INFO] [stdout] | [INFO] [stdout] 35 | pub struct TempFile { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 36 | file_handle: Handle, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `TempFile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Remove` is never constructed [INFO] [stdout] --> exercises/drop-with-errors/src/bin/01.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 40 | pub enum ErrorFileHandle { [INFO] [stdout] | --------------- variant in this enum [INFO] [stdout] 41 | Remove, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ErrorFileHandle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `remove` is never used [INFO] [stdout] --> exercises/drop-with-errors/src/bin/01.rs:48:8 [INFO] [stdout] | [INFO] [stdout] 48 | fn remove(file_handle: Handle) -> Result<(), ErrorFileHandle> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `borrowing` (bin "02" test) due to 2 previous errors [INFO] [stdout] warning: enum `MyError` is never used [INFO] [stdout] --> exercises/error-handling/src/main.rs:34:6 [INFO] [stdout] | [INFO] [stdout] 34 | enum MyError { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> exercises/error-handling/src/main.rs:41:1 [INFO] [stdout] | [INFO] [stdout] 41 | io::stdout().flush(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 41 | let _ = io::stdout().flush(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> exercises/error-handling/src/main.rs:44:1 [INFO] [stdout] | [INFO] [stdout] 44 | io::stdin().lock().read_line(&mut input); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 44 | let _ = io::stdin().lock().read_line(&mut input); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "c246c50972afe3173bb0c54bd45298bc0268e7b5e7a874ff39b710e1c47fe8cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c246c50972afe3173bb0c54bd45298bc0268e7b5e7a874ff39b710e1c47fe8cb", kill_on_drop: false }` [INFO] [stdout] c246c50972afe3173bb0c54bd45298bc0268e7b5e7a874ff39b710e1c47fe8cb