[INFO] cloning repository https://github.com/psatomas/closures [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/psatomas/closures" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpsatomas%2Fclosures", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpsatomas%2Fclosures'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1779f98dd22f1f5353cb41496ef67383bf32ccc6 [INFO] checking psatomas/closures against try#9961e55b3687a6d0b2bab4af0e5e81494b09be81 for pr-139087-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpsatomas%2Fclosures" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/psatomas/closures [INFO] finished tweaking git repo https://github.com/psatomas/closures [INFO] tweaked toml for git repo https://github.com/psatomas/closures written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/psatomas/closures on toolchain 9961e55b3687a6d0b2bab4af0e5e81494b09be81 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/psatomas/closures 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" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3039dd94a4fbd762359787412d735ba34b50d11e9ea62ed5db4971fd234c3080 [INFO] running `Command { std: "docker" "start" "-a" "3039dd94a4fbd762359787412d735ba34b50d11e9ea62ed5db4971fd234c3080", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3039dd94a4fbd762359787412d735ba34b50d11e9ea62ed5db4971fd234c3080", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3039dd94a4fbd762359787412d735ba34b50d11e9ea62ed5db4971fd234c3080", kill_on_drop: false }` [INFO] [stdout] 3039dd94a4fbd762359787412d735ba34b50d11e9ea62ed5db4971fd234c3080 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a8c683fd6f71c92f4864037855438320b11e585b83f5b254a94cfa9598a20bf7 [INFO] running `Command { std: "docker" "start" "-a" "a8c683fd6f71c92f4864037855438320b11e585b83f5b254a94cfa9598a20bf7", kill_on_drop: false }` [INFO] [stderr] Checking closures v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: function `execute_thrice` is never used [INFO] [stdout] --> src/bin/passing_in_a_function_to_Fn_trait_parameter.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn execute_thrice(mut procedure: F) [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `bake_cake` is never used [INFO] [stdout] --> src/bin/passing_in_a_function_to_Fn_trait_parameter.rs:10:4 [INFO] [stdout] | [INFO] [stdout] 10 | fn bake_cake() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/coding_challenge.rs:13:37 [INFO] [stdout] | [INFO] [stdout] 13 | fn traverse_items(&mut self, mut operation: F) [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/coding_challenge.rs:13:37 [INFO] [stdout] | [INFO] [stdout] 13 | fn traverse_items(&mut self, mut operation: F) [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0594]: cannot assign to `total_price`, as it is a captured variable in a `Fn` closure [INFO] [stdout] --> src/bin/coding_challenge.rs:62:13 [INFO] [stdout] | [INFO] [stdout] 13 | fn traverse_items(&mut self, mut operation: F) [INFO] [stdout] | - change this to accept `FnMut` instead of `Fn` [INFO] [stdout] ... [INFO] [stdout] 57 | let mut total_price = 0.0; [INFO] [stdout] | --------------- `total_price` declared here, outside the closure [INFO] [stdout] ... [INFO] [stdout] 61 | cart.traverse_items(|item| { [INFO] [stdout] | - ------ in this closure [INFO] [stdout] | ______________| [INFO] [stdout] | | [INFO] [stdout] 62 | | total_price += item.price; [INFO] [stdout] | | ^^^^^^^^^^^^^^^^^^^^^^^^^ cannot assign [INFO] [stdout] 63 | | }); [INFO] [stdout] | |__________- expects `Fn` instead of `FnMut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0594]: cannot assign to `total_price`, as it is a captured variable in a `Fn` closure [INFO] [stdout] --> src/bin/coding_challenge.rs:62:13 [INFO] [stdout] | [INFO] [stdout] 13 | fn traverse_items(&mut self, mut operation: F) [INFO] [stdout] | - change this to accept `FnMut` instead of `Fn` [INFO] [stdout] ... [INFO] [stdout] 57 | let mut total_price = 0.0; [INFO] [stdout] | --------------- `total_price` declared here, outside the closure [INFO] [stdout] ... [INFO] [stdout] 61 | cart.traverse_items(|item| { [INFO] [stdout] | - ------ in this closure [INFO] [stdout] | ______________| [INFO] [stdout] | | [INFO] [stdout] 62 | | total_price += item.price; [INFO] [stdout] | | ^^^^^^^^^^^^^^^^^^^^^^^^^ cannot assign [INFO] [stdout] 63 | | }); [INFO] [stdout] | |__________- expects `Fn` instead of `FnMut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0594`. [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0594`. [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/defining_a_method_that_accepts_a_closure_i.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | stdin().read_line(&mut user_input); [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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 30 | let _ = stdin().read_line(&mut user_input); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `closures` (bin "coding_challenge" test) due to 1 previous error; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `closures` (bin "coding_challenge") due to 1 previous error; 1 warning emitted [INFO] [stdout] error: invalid character '.' in crate name: `the_string.retain_method` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `closures` (bin "the_string.retain_method") due to 1 previous error [INFO] [stdout] error: invalid character '.' in crate name: `the_string.retain_method` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `multiplier` [INFO] [stdout] --> src/bin/nested_functions.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let multiplier = 3; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_multiplier` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/bin/nested_functions.rs:4:20 [INFO] [stdout] | [INFO] [stdout] 4 | fn multiply_by(value: i32) -> i32 { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `closures` (bin "the_string.retain_method" test) due to 1 previous error [INFO] [stdout] warning: unused variable: `multiplier` [INFO] [stdout] --> src/bin/nested_functions.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let multiplier = 3; [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_multiplier` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/bin/nested_functions.rs:4:20 [INFO] [stdout] | [INFO] [stdout] 4 | fn multiply_by(value: i32) -> i32 { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `execute_thrice` is never used [INFO] [stdout] --> src/bin/passing_in_a_function_to_Fn_trait_parameter.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn execute_thrice(mut procedure: F) [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `bake_cake` is never used [INFO] [stdout] --> src/bin/passing_in_a_function_to_Fn_trait_parameter.rs:10:4 [INFO] [stdout] | [INFO] [stdout] 10 | fn bake_cake() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/bin/defining_a_method_that_accepts_a_closure_i.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | stdin().read_line(&mut user_input); [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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 30 | let _ = stdin().read_line(&mut user_input); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "a8c683fd6f71c92f4864037855438320b11e585b83f5b254a94cfa9598a20bf7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a8c683fd6f71c92f4864037855438320b11e585b83f5b254a94cfa9598a20bf7", kill_on_drop: false }` [INFO] [stdout] a8c683fd6f71c92f4864037855438320b11e585b83f5b254a94cfa9598a20bf7