[INFO] cloning repository https://github.com/jjc914/cis198-homework3 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jjc914/cis198-homework3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjc914%2Fcis198-homework3", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjc914%2Fcis198-homework3'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 53ee92c6323b2a899a68bdf76a2f39a29c75f109 [INFO] checking jjc914/cis198-homework3 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjjc914%2Fcis198-homework3" "/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/jjc914/cis198-homework3 [INFO] finished tweaking git repo https://github.com/jjc914/cis198-homework3 [INFO] tweaked toml for git repo https://github.com/jjc914/cis198-homework3 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/jjc914/cis198-homework3 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/jjc914/cis198-homework3 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c656f9f05806e0d33f4d35abb69134a4fe172c214bb4697265709b313ce584ff [INFO] running `Command { std: "docker" "start" "-a" "c656f9f05806e0d33f4d35abb69134a4fe172c214bb4697265709b313ce584ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c656f9f05806e0d33f4d35abb69134a4fe172c214bb4697265709b313ce584ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c656f9f05806e0d33f4d35abb69134a4fe172c214bb4697265709b313ce584ff", kill_on_drop: false }` [INFO] [stdout] c656f9f05806e0d33f4d35abb69134a4fe172c214bb4697265709b313ce584ff [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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b7e821fc790bb01f19bd6eda78d6860605da39b465cdc56e89c20ee940fef462 [INFO] running `Command { std: "docker" "start" "-a" "b7e821fc790bb01f19bd6eda78d6860605da39b465cdc56e89c20ee940fef462", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.71 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling unicode-segmentation v1.10.1 [INFO] [stderr] Compiling serde v1.0.193 [INFO] [stderr] Checking unicode-width v0.1.11 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking aho-corasick v1.1.2 [INFO] [stderr] Checking regex-syntax v0.8.2 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Compiling syn v2.0.42 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking regex-automata v0.4.3 [INFO] [stderr] Compiling serde_derive v1.0.193 [INFO] [stderr] Checking regex v1.10.2 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling structopt-derive v0.4.18 [INFO] [stderr] Checking structopt v0.3.26 [INFO] [stderr] Checking serde_json v1.0.108 [INFO] [stderr] Checking homework3 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around closure body [INFO] [stdout] --> src/graph/mod.rs:550:28 [INFO] [stdout] | [INFO] [stdout] 550 | dfs.map(|(vid, _)| (self.id_to_vertex(&vid).unwrap())) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 550 - dfs.map(|(vid, _)| (self.id_to_vertex(&vid).unwrap())) [INFO] [stdout] 550 + dfs.map(|(vid, _)| self.id_to_vertex(&vid).unwrap() ) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around closure body [INFO] [stdout] --> src/graph/mod.rs:588:28 [INFO] [stdout] | [INFO] [stdout] 588 | dfs.map(|(vid, _)| (self.id_to_vertex(&vid).unwrap())) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 588 - dfs.map(|(vid, _)| (self.id_to_vertex(&vid).unwrap())) [INFO] [stdout] 588 + dfs.map(|(vid, _)| self.id_to_vertex(&vid).unwrap() ) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around closure body [INFO] [stdout] --> src/graph/mod.rs:629:28 [INFO] [stdout] | [INFO] [stdout] 629 | bfs.map(|(vid, _)| (self.id_to_vertex(&vid).unwrap())) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 629 - bfs.map(|(vid, _)| (self.id_to_vertex(&vid).unwrap())) [INFO] [stdout] 629 + bfs.map(|(vid, _)| self.id_to_vertex(&vid).unwrap() ) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around closure body [INFO] [stdout] --> src/graph/mod.rs:667:28 [INFO] [stdout] | [INFO] [stdout] 667 | bfs.map(|(vid, _)| (self.id_to_vertex(&vid).unwrap())) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 667 - bfs.map(|(vid, _)| (self.id_to_vertex(&vid).unwrap())) [INFO] [stdout] 667 + bfs.map(|(vid, _)| self.id_to_vertex(&vid).unwrap() ) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around closure body [INFO] [stdout] --> src/graph/mod.rs:550:28 [INFO] [stdout] | [INFO] [stdout] 550 | dfs.map(|(vid, _)| (self.id_to_vertex(&vid).unwrap())) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 550 - dfs.map(|(vid, _)| (self.id_to_vertex(&vid).unwrap())) [INFO] [stdout] 550 + dfs.map(|(vid, _)| self.id_to_vertex(&vid).unwrap() ) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around closure body [INFO] [stdout] --> src/graph/mod.rs:588:28 [INFO] [stdout] | [INFO] [stdout] 588 | dfs.map(|(vid, _)| (self.id_to_vertex(&vid).unwrap())) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 588 - dfs.map(|(vid, _)| (self.id_to_vertex(&vid).unwrap())) [INFO] [stdout] 588 + dfs.map(|(vid, _)| self.id_to_vertex(&vid).unwrap() ) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around closure body [INFO] [stdout] --> src/graph/mod.rs:629:28 [INFO] [stdout] | [INFO] [stdout] 629 | bfs.map(|(vid, _)| (self.id_to_vertex(&vid).unwrap())) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 629 - bfs.map(|(vid, _)| (self.id_to_vertex(&vid).unwrap())) [INFO] [stdout] 629 + bfs.map(|(vid, _)| self.id_to_vertex(&vid).unwrap() ) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around closure body [INFO] [stdout] --> src/graph/mod.rs:667:28 [INFO] [stdout] | [INFO] [stdout] 667 | bfs.map(|(vid, _)| (self.id_to_vertex(&vid).unwrap())) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 667 - bfs.map(|(vid, _)| (self.id_to_vertex(&vid).unwrap())) [INFO] [stdout] 667 + bfs.map(|(vid, _)| self.id_to_vertex(&vid).unwrap() ) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `token` [INFO] [stdout] --> src/compiler/mod.rs:382:11 [INFO] [stdout] | [INFO] [stdout] 382 | let token = tokens.pop_front().unwrap(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_token` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `token` [INFO] [stdout] --> src/compiler/mod.rs:392:11 [INFO] [stdout] | [INFO] [stdout] 392 | let token = tokens.pop_front().unwrap(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_token` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `assembly` [INFO] [stdout] --> src/compiler/mod.rs:647:29 [INFO] [stdout] | [INFO] [stdout] 647 | fn generate_decl_statement(assembly: &mut String, variable_offsets: &mut HashMap) { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_assembly` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `variable_offsets` [INFO] [stdout] --> src/compiler/mod.rs:647:52 [INFO] [stdout] | [INFO] [stdout] 647 | fn generate_decl_statement(assembly: &mut String, variable_offsets: &mut HashMap) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variable_offsets` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/graph/mod.rs:458:85 [INFO] [stdout] | [INFO] [stdout] 458 | pub fn iter_sources<'b>(&'b self, label: &'b V) -> Result + 'b, VertexMissingError> { [INFO] [stdout] | -- -- ^^ ^^ -- the same lifetime is named here [INFO] [stdout] | | | | | [INFO] [stdout] | | | | the same lifetime is elided here [INFO] [stdout] | | the lifetime is named here the same lifetime is elided here [INFO] [stdout] | the lifetime is named 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: consistently use `'b` [INFO] [stdout] | [INFO] [stdout] 458 | pub fn iter_sources<'b>(&'b self, label: &'b V) -> Result + 'b, VertexMissingError> { [INFO] [stdout] | ++ ++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | / #[structopt(short = "i", long = "input", help = "Sets the input source file path")] [INFO] [stdout] 11 | | input: String, [INFO] [stdout] | |_________________^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | / #[structopt(short = "o", long = "output", help = "Sets the output assembly file path")] [INFO] [stdout] 14 | | output: String, [INFO] [stdout] | |__________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | / #[structopt(short = "i", long = "input", help = "Sets the input source file path")] [INFO] [stdout] 11 | | input: String, [INFO] [stdout] | |_________________^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | / #[structopt(short = "o", long = "output", help = "Sets the output assembly file path")] [INFO] [stdout] 14 | | output: String, [INFO] [stdout] | |__________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `homework3` (bin "homework3" test) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `homework3` (bin "homework3") due to 2 previous errors [INFO] [stdout] warning: unused variable: `token` [INFO] [stdout] --> src/compiler/mod.rs:382:11 [INFO] [stdout] | [INFO] [stdout] 382 | let token = tokens.pop_front().unwrap(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_token` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `token` [INFO] [stdout] --> src/compiler/mod.rs:392:11 [INFO] [stdout] | [INFO] [stdout] 392 | let token = tokens.pop_front().unwrap(); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_token` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `assembly` [INFO] [stdout] --> src/compiler/mod.rs:647:29 [INFO] [stdout] | [INFO] [stdout] 647 | fn generate_decl_statement(assembly: &mut String, variable_offsets: &mut HashMap) { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_assembly` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `variable_offsets` [INFO] [stdout] --> src/compiler/mod.rs:647:52 [INFO] [stdout] | [INFO] [stdout] 647 | fn generate_decl_statement(assembly: &mut String, variable_offsets: &mut HashMap) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variable_offsets` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/graph/mod.rs:458:85 [INFO] [stdout] | [INFO] [stdout] 458 | pub fn iter_sources<'b>(&'b self, label: &'b V) -> Result + 'b, VertexMissingError> { [INFO] [stdout] | -- -- ^^ ^^ -- the same lifetime is named here [INFO] [stdout] | | | | | [INFO] [stdout] | | | | the same lifetime is elided here [INFO] [stdout] | | the lifetime is named here the same lifetime is elided here [INFO] [stdout] | the lifetime is named 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: consistently use `'b` [INFO] [stdout] | [INFO] [stdout] 458 | pub fn iter_sources<'b>(&'b self, label: &'b V) -> Result + 'b, VertexMissingError> { [INFO] [stdout] | ++ ++ [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "b7e821fc790bb01f19bd6eda78d6860605da39b465cdc56e89c20ee940fef462", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b7e821fc790bb01f19bd6eda78d6860605da39b465cdc56e89c20ee940fef462", kill_on_drop: false }` [INFO] [stdout] b7e821fc790bb01f19bd6eda78d6860605da39b465cdc56e89c20ee940fef462