[INFO] cloning repository https://github.com/emeraldhycient/rust-learn1 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emeraldhycient/rust-learn1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femeraldhycient%2Frust-learn1", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femeraldhycient%2Frust-learn1'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 85c29647ac470cd327c667f429ee6cdee91a1faa [INFO] checking emeraldhycient/rust-learn1 against master#fc5af1813307d25a84d633f21e2e53c9376eb547 for pr-144386 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femeraldhycient%2Frust-learn1" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/emeraldhycient/rust-learn1 [INFO] finished tweaking git repo https://github.com/emeraldhycient/rust-learn1 [INFO] tweaked toml for git repo https://github.com/emeraldhycient/rust-learn1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/emeraldhycient/rust-learn1 on toolchain fc5af1813307d25a84d633f21e2e53c9376eb547 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fc5af1813307d25a84d633f21e2e53c9376eb547" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/emeraldhycient/rust-learn1 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" "+fc5af1813307d25a84d633f21e2e53c9376eb547" "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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+fc5af1813307d25a84d633f21e2e53c9376eb547" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] de34c31c2880e279fa8e005cd2226c32ba0852fba754d4daee1f148929516cc9 [INFO] running `Command { std: "docker" "start" "-a" "de34c31c2880e279fa8e005cd2226c32ba0852fba754d4daee1f148929516cc9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "de34c31c2880e279fa8e005cd2226c32ba0852fba754d4daee1f148929516cc9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de34c31c2880e279fa8e005cd2226c32ba0852fba754d4daee1f148929516cc9", kill_on_drop: false }` [INFO] [stdout] de34c31c2880e279fa8e005cd2226c32ba0852fba754d4daee1f148929516cc9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+fc5af1813307d25a84d633f21e2e53c9376eb547" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f62141737829a126f9c1c6d5ae4f632ac9d509bae8fd4adf9268a554833df899 [INFO] running `Command { std: "docker" "start" "-a" "f62141737829a126f9c1c6d5ae4f632ac9d509bae8fd4adf9268a554833df899", kill_on_drop: false }` [INFO] [stderr] Checking first v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `floats` [INFO] [stdout] --> src/types.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let floats: f32 = 2.56; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_floats` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `boolean` [INFO] [stdout] --> src/types.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let boolean: bool = true; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_boolean` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `characters` [INFO] [stdout] --> src/types.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let characters: char = 'c'; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_characters` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `integers` [INFO] [stdout] --> src/types.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let integers: i64 = 12345566; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_integers` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `is_greater` [INFO] [stdout] --> src/types.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let is_greater = 34 > 4; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_greater` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `mutable_string` is assigned to, but never used [INFO] [stdout] --> src/vars.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 11 | let mut mutable_string = "will be chnaged soon"; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_mutable_string` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `mutable_string` is never read [INFO] [stdout] --> src/vars.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | mutable_string = "i have been changed"; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `first1` [INFO] [stdout] --> src/vars.rs:24:10 [INFO] [stdout] | [INFO] [stdout] 24 | let (first1, second1) = ("first", "second"); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_first1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `second1` [INFO] [stdout] --> src/vars.rs:24:18 [INFO] [stdout] | [INFO] [stdout] 24 | let (first1, second1) = ("first", "second"); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_second1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `floats` [INFO] [stdout] --> src/types.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 11 | let floats: f32 = 2.56; [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_floats` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `boolean` [INFO] [stdout] --> src/types.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let boolean: bool = true; [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_boolean` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `characters` [INFO] [stdout] --> src/types.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let characters: char = 'c'; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_characters` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `integers` [INFO] [stdout] --> src/types.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let integers: i64 = 12345566; [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_integers` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `is_greater` [INFO] [stdout] --> src/types.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let is_greater = 34 > 4; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_greater` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `mutable_string` is assigned to, but never used [INFO] [stdout] --> src/vars.rs:11:13 [INFO] [stdout] | [INFO] [stdout] 11 | let mut mutable_string = "will be chnaged soon"; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: consider using `_mutable_string` instead [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `mutable_string` is never read [INFO] [stdout] --> src/vars.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | mutable_string = "i have been changed"; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `first1` [INFO] [stdout] --> src/vars.rs:24:10 [INFO] [stdout] | [INFO] [stdout] 24 | let (first1, second1) = ("first", "second"); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_first1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `second1` [INFO] [stdout] --> src/vars.rs:24:18 [INFO] [stdout] | [INFO] [stdout] 24 | let (first1, second1) = ("first", "second"); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_second1` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s [INFO] running `Command { std: "docker" "inspect" "f62141737829a126f9c1c6d5ae4f632ac9d509bae8fd4adf9268a554833df899", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f62141737829a126f9c1c6d5ae4f632ac9d509bae8fd4adf9268a554833df899", kill_on_drop: false }` [INFO] [stdout] f62141737829a126f9c1c6d5ae4f632ac9d509bae8fd4adf9268a554833df899