[INFO] fetching crate kosh 0.1.1... [INFO] checking kosh-0.1.1 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1 [INFO] extracting crate kosh 0.1.1 into /workspace/builds/worker-5-tc1/source [INFO] started tweaking crates.io crate kosh 0.1.1 [INFO] finished tweaking crates.io crate kosh 0.1.1 [INFO] tweaked toml for crates.io crate kosh 0.1.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate kosh 0.1.1 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate kosh 0.1.1 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--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 is-terminal v0.4.5 [INFO] [stderr] Downloaded clap_lex v0.3.3 [INFO] [stderr] Downloaded io-lifetimes v1.0.8 [INFO] [stderr] Downloaded bitflags v2.0.2 [INFO] [stderr] Downloaded clap v4.1.11 [INFO] [stderr] Downloaded rustix v0.36.10 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7ed5bb52b3552dc4dab05699e7bab9d21a3aaad2b4bd85a2cd6f8474e584c3a6 [INFO] running `Command { std: "docker" "start" "-a" "7ed5bb52b3552dc4dab05699e7bab9d21a3aaad2b4bd85a2cd6f8474e584c3a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7ed5bb52b3552dc4dab05699e7bab9d21a3aaad2b4bd85a2cd6f8474e584c3a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7ed5bb52b3552dc4dab05699e7bab9d21a3aaad2b4bd85a2cd6f8474e584c3a6", kill_on_drop: false }` [INFO] [stdout] 7ed5bb52b3552dc4dab05699e7bab9d21a3aaad2b4bd85a2cd6f8474e584c3a6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f8d8c81f2afa162ebc5770120fcab26f860f0830a5cc8ee300f81d3145b0401b [INFO] running `Command { std: "docker" "start" "-a" "f8d8c81f2afa162ebc5770120fcab26f860f0830a5cc8ee300f81d3145b0401b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.140 [INFO] [stderr] Compiling io-lifetimes v1.0.8 [INFO] [stderr] Compiling rustix v0.36.10 [INFO] [stderr] Checking linux-raw-sys v0.1.4 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking os_str_bytes v6.4.1 [INFO] [stderr] Checking termcolor v1.2.0 [INFO] [stderr] Checking bitflags v2.0.2 [INFO] [stderr] Checking strsim v0.10.0 [INFO] [stderr] Checking clap_lex v0.3.3 [INFO] [stderr] Checking is-terminal v0.4.5 [INFO] [stderr] Checking clap v4.1.11 [INFO] [stderr] Checking kosh v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `matches` [INFO] [stdout] --> src/lib.rs:15:17 [INFO] [stdout] | [INFO] [stdout] 15 | pub fn run_loop(matches: ArgMatches) -> ! { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matches` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple variants are never constructed [INFO] [stdout] --> src/term/color.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | pub enum BasicColor { [INFO] [stdout] | ---------- variants in this enum [INFO] [stdout] 3 | Black, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 4 | Red, [INFO] [stdout] | ^^^ [INFO] [stdout] 5 | Green, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 6 | Yellow, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 7 | Blue, [INFO] [stdout] 8 | Magenta, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 9 | Cyan, [INFO] [stdout] | ^^^^ [INFO] [stdout] 10 | White, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Color8bit` is never used [INFO] [stdout] --> src/term/color.rs:14:10 [INFO] [stdout] | [INFO] [stdout] 14 | pub enum Color8bit { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ESC_BEGIN` is never used [INFO] [stdout] --> src/term/esc.rs:3:11 [INFO] [stdout] | [INFO] [stdout] 3 | pub const ESC_BEGIN: &str = "\x1b["; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ESC_END` is never used [INFO] [stdout] --> src/term/esc.rs:4:11 [INFO] [stdout] | [INFO] [stdout] 4 | pub const ESC_END: &str = "m"; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ESC_VALUE_BELL` is never used [INFO] [stdout] --> src/term/esc.rs:6:11 [INFO] [stdout] | [INFO] [stdout] 6 | pub const ESC_VALUE_BELL: &str = "7"; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ESC_VALUE_CLEAR` is never used [INFO] [stdout] --> src/term/esc.rs:7:11 [INFO] [stdout] | [INFO] [stdout] 7 | pub const ESC_VALUE_CLEAR: &str = "2J"; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ESC_VALUE_CLEAR_LINE` is never used [INFO] [stdout] --> src/term/esc.rs:8:11 [INFO] [stdout] | [INFO] [stdout] 8 | pub const ESC_VALUE_CLEAR_LINE: &str = "2K"; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ESC_VALUE_CURSOR_UP` is never used [INFO] [stdout] --> src/term/esc.rs:9:11 [INFO] [stdout] | [INFO] [stdout] 9 | pub const ESC_VALUE_CURSOR_UP: &str = "1A"; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ESC_VALUE_CURSOR_DOWN` is never used [INFO] [stdout] --> src/term/esc.rs:10:11 [INFO] [stdout] | [INFO] [stdout] 10 | pub const ESC_VALUE_CURSOR_DOWN: &str = "1B"; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ESC_VALUE_CURSOR_LEFT` is never used [INFO] [stdout] --> src/term/esc.rs:11:11 [INFO] [stdout] | [INFO] [stdout] 11 | pub const ESC_VALUE_CURSOR_LEFT: &str = "1D"; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ESC_VALUE_CURSOR_RIGHT` is never used [INFO] [stdout] --> src/term/esc.rs:12:11 [INFO] [stdout] | [INFO] [stdout] 12 | pub const ESC_VALUE_CURSOR_RIGHT: &str = "1C"; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ESC_VALUE_RESET` is never used [INFO] [stdout] --> src/term/esc.rs:13:11 [INFO] [stdout] | [INFO] [stdout] 13 | pub const ESC_VALUE_RESET: &str = "0"; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Color` is never used [INFO] [stdout] --> src/term/esc.rs:15:10 [INFO] [stdout] | [INFO] [stdout] 15 | pub enum Color { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `FontStyle` is never used [INFO] [stdout] --> src/term/esc.rs:27:10 [INFO] [stdout] | [INFO] [stdout] 27 | pub enum FontStyle { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Cursor` is never used [INFO] [stdout] --> src/term/esc.rs:32:10 [INFO] [stdout] | [INFO] [stdout] 32 | pub enum Cursor { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `CursorVisibility` is never used [INFO] [stdout] --> src/term/esc.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | pub enum CursorVisibility { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Escape` is never used [INFO] [stdout] --> src/term/esc.rs:44:10 [INFO] [stdout] | [INFO] [stdout] 44 | pub enum Escape { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Escapable` is never used [INFO] [stdout] --> src/term/esc.rs:56:11 [INFO] [stdout] | [INFO] [stdout] 56 | pub trait Escapable { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `escape_string` is never used [INFO] [stdout] --> src/term/esc.rs:71:8 [INFO] [stdout] | [INFO] [stdout] 71 | pub fn escape_string(escape: Escape) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_string` is never used [INFO] [stdout] --> src/term/specs.rs:32:8 [INFO] [stdout] | [INFO] [stdout] 32 | pub fn print_string(string: &str, position: (i8, i8), text_color: (i16, i16, i16)) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:77:21 [INFO] [stdout] | [INFO] [stdout] 77 | fn read_line(input: &mut String) -> Option { [INFO] [stdout] | ^^^^^^^^^^^ ------- the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 77 | fn read_line(input: &mut String) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `matches` [INFO] [stdout] --> src/lib.rs:15:17 [INFO] [stdout] | [INFO] [stdout] 15 | pub fn run_loop(matches: ArgMatches) -> ! { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_matches` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple variants are never constructed [INFO] [stdout] --> src/term/color.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | pub enum BasicColor { [INFO] [stdout] | ---------- variants in this enum [INFO] [stdout] 3 | Black, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 4 | Red, [INFO] [stdout] | ^^^ [INFO] [stdout] 5 | Green, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 6 | Yellow, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 7 | Blue, [INFO] [stdout] 8 | Magenta, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 9 | Cyan, [INFO] [stdout] | ^^^^ [INFO] [stdout] 10 | White, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Color8bit` is never used [INFO] [stdout] --> src/term/color.rs:14:10 [INFO] [stdout] | [INFO] [stdout] 14 | pub enum Color8bit { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ESC_BEGIN` is never used [INFO] [stdout] --> src/term/esc.rs:3:11 [INFO] [stdout] | [INFO] [stdout] 3 | pub const ESC_BEGIN: &str = "\x1b["; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ESC_END` is never used [INFO] [stdout] --> src/term/esc.rs:4:11 [INFO] [stdout] | [INFO] [stdout] 4 | pub const ESC_END: &str = "m"; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ESC_VALUE_BELL` is never used [INFO] [stdout] --> src/term/esc.rs:6:11 [INFO] [stdout] | [INFO] [stdout] 6 | pub const ESC_VALUE_BELL: &str = "7"; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ESC_VALUE_CLEAR` is never used [INFO] [stdout] --> src/term/esc.rs:7:11 [INFO] [stdout] | [INFO] [stdout] 7 | pub const ESC_VALUE_CLEAR: &str = "2J"; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ESC_VALUE_CLEAR_LINE` is never used [INFO] [stdout] --> src/term/esc.rs:8:11 [INFO] [stdout] | [INFO] [stdout] 8 | pub const ESC_VALUE_CLEAR_LINE: &str = "2K"; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ESC_VALUE_CURSOR_UP` is never used [INFO] [stdout] --> src/term/esc.rs:9:11 [INFO] [stdout] | [INFO] [stdout] 9 | pub const ESC_VALUE_CURSOR_UP: &str = "1A"; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ESC_VALUE_CURSOR_DOWN` is never used [INFO] [stdout] --> src/term/esc.rs:10:11 [INFO] [stdout] | [INFO] [stdout] 10 | pub const ESC_VALUE_CURSOR_DOWN: &str = "1B"; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ESC_VALUE_CURSOR_LEFT` is never used [INFO] [stdout] --> src/term/esc.rs:11:11 [INFO] [stdout] | [INFO] [stdout] 11 | pub const ESC_VALUE_CURSOR_LEFT: &str = "1D"; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ESC_VALUE_CURSOR_RIGHT` is never used [INFO] [stdout] --> src/term/esc.rs:12:11 [INFO] [stdout] | [INFO] [stdout] 12 | pub const ESC_VALUE_CURSOR_RIGHT: &str = "1C"; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant `ESC_VALUE_RESET` is never used [INFO] [stdout] --> src/term/esc.rs:13:11 [INFO] [stdout] | [INFO] [stdout] 13 | pub const ESC_VALUE_RESET: &str = "0"; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Color` is never used [INFO] [stdout] --> src/term/esc.rs:15:10 [INFO] [stdout] | [INFO] [stdout] 15 | pub enum Color { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `FontStyle` is never used [INFO] [stdout] --> src/term/esc.rs:27:10 [INFO] [stdout] | [INFO] [stdout] 27 | pub enum FontStyle { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Cursor` is never used [INFO] [stdout] --> src/term/esc.rs:32:10 [INFO] [stdout] | [INFO] [stdout] 32 | pub enum Cursor { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `CursorVisibility` is never used [INFO] [stdout] --> src/term/esc.rs:39:10 [INFO] [stdout] | [INFO] [stdout] 39 | pub enum CursorVisibility { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Escape` is never used [INFO] [stdout] --> src/term/esc.rs:44:10 [INFO] [stdout] | [INFO] [stdout] 44 | pub enum Escape { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Escapable` is never used [INFO] [stdout] --> src/term/esc.rs:56:11 [INFO] [stdout] | [INFO] [stdout] 56 | pub trait Escapable { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `escape_string` is never used [INFO] [stdout] --> src/term/esc.rs:71:8 [INFO] [stdout] | [INFO] [stdout] 71 | pub fn escape_string(escape: Escape) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `print_string` is never used [INFO] [stdout] --> src/term/specs.rs:32:8 [INFO] [stdout] | [INFO] [stdout] 32 | pub fn print_string(string: &str, position: (i8, i8), text_color: (i16, i16, i16)) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:77:21 [INFO] [stdout] | [INFO] [stdout] 77 | fn read_line(input: &mut String) -> Option { [INFO] [stdout] | ^^^^^^^^^^^ ------- the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 77 | fn read_line(input: &mut String) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.14s [INFO] running `Command { std: "docker" "inspect" "f8d8c81f2afa162ebc5770120fcab26f860f0830a5cc8ee300f81d3145b0401b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f8d8c81f2afa162ebc5770120fcab26f860f0830a5cc8ee300f81d3145b0401b", kill_on_drop: false }` [INFO] [stdout] f8d8c81f2afa162ebc5770120fcab26f860f0830a5cc8ee300f81d3145b0401b