[INFO] cloning repository https://github.com/LIYANG-UST/rustpractice [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LIYANG-UST/rustpractice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLIYANG-UST%2Frustpractice", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLIYANG-UST%2Frustpractice'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 861d876cb6f8b430bd61366529d1780b0a20a6a5 [INFO] checking LIYANG-UST/rustpractice against try#579169d0e78824dc60934e5eb74cd3841f2b33e8 for pr-149328 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLIYANG-UST%2Frustpractice" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/LIYANG-UST/rustpractice [INFO] finished tweaking git repo https://github.com/LIYANG-UST/rustpractice [INFO] tweaked toml for git repo https://github.com/LIYANG-UST/rustpractice written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/LIYANG-UST/rustpractice on toolchain 579169d0e78824dc60934e5eb74cd3841f2b33e8 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+579169d0e78824dc60934e5eb74cd3841f2b33e8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/LIYANG-UST/rustpractice 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" "+579169d0e78824dc60934e5eb74cd3841f2b33e8" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+579169d0e78824dc60934e5eb74cd3841f2b33e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ba2c6018d3963d0443a51c21f65742adf44906fbf30e71edbd0f1e5eba50d365 [INFO] running `Command { std: "docker" "start" "-a" "ba2c6018d3963d0443a51c21f65742adf44906fbf30e71edbd0f1e5eba50d365", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ba2c6018d3963d0443a51c21f65742adf44906fbf30e71edbd0f1e5eba50d365", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ba2c6018d3963d0443a51c21f65742adf44906fbf30e71edbd0f1e5eba50d365", kill_on_drop: false }` [INFO] [stdout] ba2c6018d3963d0443a51c21f65742adf44906fbf30e71edbd0f1e5eba50d365 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+579169d0e78824dc60934e5eb74cd3841f2b33e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 488df7a32f9d3dc0892760a8a76d1939039842cac2f9ec96eeea4d00cefb8eb7 [INFO] running `Command { std: "docker" "start" "-a" "488df7a32f9d3dc0892760a8a76d1939039842cac2f9ec96eeea4d00cefb8eb7", kill_on_drop: false }` [INFO] [stderr] Checking hello-world v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `base_booltype` is never used [INFO] [stdout] --> src/base_types.rs:27:8 [INFO] [stdout] | [INFO] [stdout] 27 | pub fn base_booltype() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Direction` is never used [INFO] [stdout] --> src/pattern_match.rs:3:6 [INFO] [stdout] | [INFO] [stdout] 3 | enum Direction { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `pattern_match` is never used [INFO] [stdout] --> src/pattern_match.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn pattern_match() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Nickel` and `Quarter` are never constructed [INFO] [stdout] --> src/pattern_match.rs:27:5 [INFO] [stdout] | [INFO] [stdout] 25 | pub enum Coin { [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 26 | Penny, [INFO] [stdout] 27 | Nickel, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 28 | Dime, [INFO] [stdout] 29 | Quarter [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `IpAddr` is never used [INFO] [stdout] --> src/pattern_match.rs:44:6 [INFO] [stdout] | [INFO] [stdout] 44 | enum IpAddr { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `match_ip` is never used [INFO] [stdout] --> src/pattern_match.rs:49:4 [INFO] [stdout] | [INFO] [stdout] 49 | fn match_ip() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Action` is never used [INFO] [stdout] --> src/pattern_match.rs:60:6 [INFO] [stdout] | [INFO] [stdout] 60 | enum Action { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `match_action` is never used [INFO] [stdout] --> src/pattern_match.rs:66:4 [INFO] [stdout] | [INFO] [stdout] 66 | fn match_action () { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `MyEnum` is never used [INFO] [stdout] --> src/pattern_match.rs:93:6 [INFO] [stdout] | [INFO] [stdout] 93 | enum MyEnum { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `matches` is never used [INFO] [stdout] --> src/pattern_match.rs:98:4 [INFO] [stdout] | [INFO] [stdout] 98 | fn matches() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `base_booltype` is never used [INFO] [stdout] --> src/base_types.rs:27:8 [INFO] [stdout] | [INFO] [stdout] 27 | pub fn base_booltype() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Direction` is never used [INFO] [stdout] --> src/pattern_match.rs:3:6 [INFO] [stdout] | [INFO] [stdout] 3 | enum Direction { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `pattern_match` is never used [INFO] [stdout] --> src/pattern_match.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 10 | pub fn pattern_match() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Nickel` and `Quarter` are never constructed [INFO] [stdout] --> src/pattern_match.rs:27:5 [INFO] [stdout] | [INFO] [stdout] 25 | pub enum Coin { [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 26 | Penny, [INFO] [stdout] 27 | Nickel, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 28 | Dime, [INFO] [stdout] 29 | Quarter [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `IpAddr` is never used [INFO] [stdout] --> src/pattern_match.rs:44:6 [INFO] [stdout] | [INFO] [stdout] 44 | enum IpAddr { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `match_ip` is never used [INFO] [stdout] --> src/pattern_match.rs:49:4 [INFO] [stdout] | [INFO] [stdout] 49 | fn match_ip() { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Action` is never used [INFO] [stdout] --> src/pattern_match.rs:60:6 [INFO] [stdout] | [INFO] [stdout] 60 | enum Action { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `match_action` is never used [INFO] [stdout] --> src/pattern_match.rs:66:4 [INFO] [stdout] | [INFO] [stdout] 66 | fn match_action () { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `MyEnum` is never used [INFO] [stdout] --> src/pattern_match.rs:93:6 [INFO] [stdout] | [INFO] [stdout] 93 | enum MyEnum { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `matches` is never used [INFO] [stdout] --> src/pattern_match.rs:98:4 [INFO] [stdout] | [INFO] [stdout] 98 | fn matches() { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Filter` that must be used [INFO] [stdout] --> src/pattern_match.rs:101:5 [INFO] [stdout] | [INFO] [stdout] 101 | v.iter().filter(|x| matches!(x, MyEnum::Foo)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: iterators are lazy and do nothing unless consumed [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 101 | let _ = v.iter().filter(|x| matches!(x, MyEnum::Foo)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Filter` that must be used [INFO] [stdout] --> src/pattern_match.rs:101:5 [INFO] [stdout] | [INFO] [stdout] 101 | v.iter().filter(|x| matches!(x, MyEnum::Foo)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: iterators are lazy and do nothing unless consumed [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 101 | let _ = v.iter().filter(|x| matches!(x, MyEnum::Foo)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s [INFO] running `Command { std: "docker" "inspect" "488df7a32f9d3dc0892760a8a76d1939039842cac2f9ec96eeea4d00cefb8eb7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "488df7a32f9d3dc0892760a8a76d1939039842cac2f9ec96eeea4d00cefb8eb7", kill_on_drop: false }` [INFO] [stdout] 488df7a32f9d3dc0892760a8a76d1939039842cac2f9ec96eeea4d00cefb8eb7