[INFO] cloning repository https://github.com/obshidian/juRSh [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/obshidian/juRSh" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fobshidian%2FjuRSh", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fobshidian%2FjuRSh'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 64bf2538ad8cabdc248cc02c67ee08ab3ab45186 [INFO] building obshidian/juRSh against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fobshidian%2FjuRSh" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/obshidian/juRSh on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/obshidian/juRSh [INFO] finished tweaking git repo https://github.com/obshidian/juRSh [INFO] tweaked toml for git repo https://github.com/obshidian/juRSh written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/obshidian/juRSh 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 51b30701c1c93fe40ecaa570d6ffe5caf2b7af7fc6546816e29038bc6bd2f3ff [INFO] running `Command { std: "docker" "start" "-a" "51b30701c1c93fe40ecaa570d6ffe5caf2b7af7fc6546816e29038bc6bd2f3ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "51b30701c1c93fe40ecaa570d6ffe5caf2b7af7fc6546816e29038bc6bd2f3ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "51b30701c1c93fe40ecaa570d6ffe5caf2b7af7fc6546816e29038bc6bd2f3ff", kill_on_drop: false }` [INFO] [stdout] 51b30701c1c93fe40ecaa570d6ffe5caf2b7af7fc6546816e29038bc6bd2f3ff [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e3d40ff65100c4b54aa29a32efc9119286abaa06c6b21f5189d7f7e7315e9adc [INFO] running `Command { std: "docker" "start" "-a" "e3d40ff65100c4b54aa29a32efc9119286abaa06c6b21f5189d7f7e7315e9adc", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Compiling joshscript-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::num::Wrapping` [INFO] [stdout] --> src/exec.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::num::Wrapping; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `no_panic_pow` has been stable since 1.34.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(no_panic_pow)] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/exec.rs:6:73 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn evaluate(prog: &Program, bank: &mut [u8; 256]) -> Result<(), Box> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 6 | pub fn evaluate(prog: &Program, bank: &mut [u8; 256]) -> Result<(), Box> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/exec.rs:66:49 [INFO] [stdout] | [INFO] [stdout] 66 | pub fn as_callable<'a, T>(prog: Program) -> Box Result<[u8; 256], Box>> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 66 | pub fn as_callable<'a, T>(prog: Program) -> Box Result<[u8; 256], Box>> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/exec.rs:66:80 [INFO] [stdout] | [INFO] [stdout] 66 | pub fn as_callable<'a, T>(prog: Program) -> Box Result<[u8; 256], Box>> [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 66 | pub fn as_callable<'a, T>(prog: Program) -> Box Result<[u8; 256], Box>> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `position` [INFO] [stdout] --> src/parse.rs:7:13 [INFO] [stdout] | [INFO] [stdout] 7 | let position = &mut position; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_position` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/parse.rs:76:23 [INFO] [stdout] | [INFO] [stdout] 76 | pub struct ParseError((String, usize, usize)); [INFO] [stdout] | ---------- ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/exec.rs:42:21 [INFO] [stdout] | [INFO] [stdout] 42 | io::stdout().write(&[bank[t]]); [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] 42 | let _ = io::stdout().write(&[bank[t]]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s [INFO] running `Command { std: "docker" "inspect" "e3d40ff65100c4b54aa29a32efc9119286abaa06c6b21f5189d7f7e7315e9adc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e3d40ff65100c4b54aa29a32efc9119286abaa06c6b21f5189d7f7e7315e9adc", kill_on_drop: false }` [INFO] [stdout] e3d40ff65100c4b54aa29a32efc9119286abaa06c6b21f5189d7f7e7315e9adc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d0cc40edc2bf525cf052f6366ce19d5d55b3715a8c01f65d409be2279e090aca [INFO] running `Command { std: "docker" "start" "-a" "d0cc40edc2bf525cf052f6366ce19d5d55b3715a8c01f65d409be2279e090aca", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stdout] warning: unused import: `std::num::Wrapping` [INFO] [stdout] --> src/exec.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::num::Wrapping; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `no_panic_pow` has been stable since 1.34.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(no_panic_pow)] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/exec.rs:6:73 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn evaluate(prog: &Program, bank: &mut [u8; 256]) -> Result<(), Box> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 6 | pub fn evaluate(prog: &Program, bank: &mut [u8; 256]) -> Result<(), Box> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/exec.rs:66:49 [INFO] [stdout] | [INFO] [stdout] 66 | pub fn as_callable<'a, T>(prog: Program) -> Box Result<[u8; 256], Box>> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 66 | pub fn as_callable<'a, T>(prog: Program) -> Box Result<[u8; 256], Box>> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling joshscript-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/exec.rs:66:80 [INFO] [stdout] | [INFO] [stdout] 66 | pub fn as_callable<'a, T>(prog: Program) -> Box Result<[u8; 256], Box>> [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 66 | pub fn as_callable<'a, T>(prog: Program) -> Box Result<[u8; 256], Box>> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `position` [INFO] [stdout] --> src/parse.rs:7:13 [INFO] [stdout] | [INFO] [stdout] 7 | let position = &mut position; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_position` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/parse.rs:76:23 [INFO] [stdout] | [INFO] [stdout] 76 | pub struct ParseError((String, usize, usize)); [INFO] [stdout] | ---------- ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/exec.rs:42:21 [INFO] [stdout] | [INFO] [stdout] 42 | io::stdout().write(&[bank[t]]); [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] 42 | let _ = io::stdout().write(&[bank[t]]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::num::Wrapping` [INFO] [stdout] --> src/exec.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::num::Wrapping; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `no_panic_pow` has been stable since 1.34.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(no_panic_pow)] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/exec.rs:6:73 [INFO] [stdout] | [INFO] [stdout] 6 | pub fn evaluate(prog: &Program, bank: &mut [u8; 256]) -> Result<(), Box> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 6 | pub fn evaluate(prog: &Program, bank: &mut [u8; 256]) -> Result<(), Box> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/exec.rs:66:49 [INFO] [stdout] | [INFO] [stdout] 66 | pub fn as_callable<'a, T>(prog: Program) -> Box Result<[u8; 256], Box>> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 66 | pub fn as_callable<'a, T>(prog: Program) -> Box Result<[u8; 256], Box>> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/exec.rs:66:80 [INFO] [stdout] | [INFO] [stdout] 66 | pub fn as_callable<'a, T>(prog: Program) -> Box Result<[u8; 256], Box>> [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 66 | pub fn as_callable<'a, T>(prog: Program) -> Box Result<[u8; 256], Box>> [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `position` [INFO] [stdout] --> src/parse.rs:7:13 [INFO] [stdout] | [INFO] [stdout] 7 | let position = &mut position; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_position` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/parse.rs:76:23 [INFO] [stdout] | [INFO] [stdout] 76 | pub struct ParseError((String, usize, usize)); [INFO] [stdout] | ---------- ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/exec.rs:42:21 [INFO] [stdout] | [INFO] [stdout] 42 | io::stdout().write(&[bank[t]]); [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] 42 | let _ = io::stdout().write(&[bank[t]]); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s [INFO] running `Command { std: "docker" "inspect" "d0cc40edc2bf525cf052f6366ce19d5d55b3715a8c01f65d409be2279e090aca", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d0cc40edc2bf525cf052f6366ce19d5d55b3715a8c01f65d409be2279e090aca", kill_on_drop: false }` [INFO] [stdout] d0cc40edc2bf525cf052f6366ce19d5d55b3715a8c01f65d409be2279e090aca