[INFO] cloning repository https://github.com/astyles10/Rust-Playground [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/astyles10/Rust-Playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fastyles10%2FRust-Playground", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fastyles10%2FRust-Playground'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 323a988565fbcec2c3885aa774b07b6076b8693b [INFO] checking astyles10/Rust-Playground against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fastyles10%2FRust-Playground" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/astyles10/Rust-Playground on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/astyles10/Rust-Playground [INFO] finished tweaking git repo https://github.com/astyles10/Rust-Playground [INFO] tweaked toml for git repo https://github.com/astyles10/Rust-Playground written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/astyles10/Rust-Playground 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded thiserror-core-impl v1.0.38 [INFO] [stderr] Downloaded thiserror-core v1.0.38 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 60b3f2342d4734080619d65a65d54ac80fb4e1590d7fc577a3f6ab5d2d6df2aa [INFO] running `Command { std: "docker" "start" "-a" "60b3f2342d4734080619d65a65d54ac80fb4e1590d7fc577a3f6ab5d2d6df2aa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "60b3f2342d4734080619d65a65d54ac80fb4e1590d7fc577a3f6ab5d2d6df2aa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "60b3f2342d4734080619d65a65d54ac80fb4e1590d7fc577a3f6ab5d2d6df2aa", kill_on_drop: false }` [INFO] [stdout] 60b3f2342d4734080619d65a65d54ac80fb4e1590d7fc577a3f6ab5d2d6df2aa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] dfe89d65e7d55d6bf6980dc79629a12f7026df4f43ad4d68dc597c241df02f19 [INFO] running `Command { std: "docker" "start" "-a" "dfe89d65e7d55d6bf6980dc79629a12f7026df4f43ad4d68dc597c241df02f19", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.69 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling crc32fast v1.3.2 [INFO] [stderr] Compiling thiserror-core v1.0.38 [INFO] [stderr] Checking adler v1.0.2 [INFO] [stderr] Checking static_assertions v1.1.0 [INFO] [stderr] Checking byteorder v1.5.0 [INFO] [stderr] Checking memchr v2.6.4 [INFO] [stderr] Checking twox-hash v1.6.3 [INFO] [stderr] Checking miniz_oxide v0.7.1 [INFO] [stderr] Checking flate2 v1.0.28 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Compiling thiserror-core-impl v1.0.38 [INFO] [stderr] Checking ruzstd v0.4.0 [INFO] [stderr] Checking object v0.32.1 [INFO] [stderr] Checking rust_gbe v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `lowest` [INFO] [stdout] --> src/comparable.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let lowest: Option<&u8> = self.first.first(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_lowest` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> src/main.rs:31:14 [INFO] [stdout] | [INFO] [stdout] 31 | struct Color(i32, i32, i32); [INFO] [stdout] | ----- ^^^ ^^^ ^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 31 | struct Color((), (), ()); [INFO] [stdout] | ~~ ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Type2` is never constructed [INFO] [stdout] --> src/main.rs:51:3 [INFO] [stdout] | [INFO] [stdout] 49 | enum TestAddress { [INFO] [stdout] | ----------- variant in this enum [INFO] [stdout] 50 | Type1(u8, u8, u8), [INFO] [stdout] 51 | Type2(String) [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `test_ref` is never used [INFO] [stdout] --> src/main.rs:117:4 [INFO] [stdout] | [INFO] [stdout] 117 | fn test_ref<'a>(in_string: &'a str, in_str_2: &'a str) -> &'a str { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `second` is never read [INFO] [stdout] --> src/comparable.rs:8:3 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct Comparer<'a, T> { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 7 | first: &'a [T], [INFO] [stdout] 8 | second: &'a [T] [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `lowest` [INFO] [stdout] --> src/comparable.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let lowest: Option<&u8> = self.first.first(); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_lowest` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0`, `1`, and `2` are never read [INFO] [stdout] --> src/main.rs:31:14 [INFO] [stdout] | [INFO] [stdout] 31 | struct Color(i32, i32, i32); [INFO] [stdout] | ----- ^^^ ^^^ ^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields [INFO] [stdout] | [INFO] [stdout] 31 | struct Color((), (), ()); [INFO] [stdout] | ~~ ~~ ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Type2` is never constructed [INFO] [stdout] --> src/main.rs:51:3 [INFO] [stdout] | [INFO] [stdout] 49 | enum TestAddress { [INFO] [stdout] | ----------- variant in this enum [INFO] [stdout] 50 | Type1(u8, u8, u8), [INFO] [stdout] 51 | Type2(String) [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `test_ref` is never used [INFO] [stdout] --> src/main.rs:117:4 [INFO] [stdout] | [INFO] [stdout] 117 | fn test_ref<'a>(in_string: &'a str, in_str_2: &'a str) -> &'a str { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `second` is never read [INFO] [stdout] --> src/comparable.rs:8:3 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct Comparer<'a, T> { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 7 | first: &'a [T], [INFO] [stdout] 8 | second: &'a [T] [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.92s [INFO] running `Command { std: "docker" "inspect" "dfe89d65e7d55d6bf6980dc79629a12f7026df4f43ad4d68dc597c241df02f19", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dfe89d65e7d55d6bf6980dc79629a12f7026df4f43ad4d68dc597c241df02f19", kill_on_drop: false }` [INFO] [stdout] dfe89d65e7d55d6bf6980dc79629a12f7026df4f43ad4d68dc597c241df02f19