[INFO] cloning repository https://github.com/upenn-cis198-2018f/Lecture6 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/upenn-cis198-2018f/Lecture6" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fupenn-cis198-2018f%2FLecture6", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fupenn-cis198-2018f%2FLecture6'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a095ded29421886fed129ceb8acfa986ad63c8f8 [INFO] checking upenn-cis198-2018f/Lecture6 against try#3298c2ca5e390fd0d104357fdeec514a152a9561 for pr-136490 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fupenn-cis198-2018f%2FLecture6" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/upenn-cis198-2018f/Lecture6 on toolchain 3298c2ca5e390fd0d104357fdeec514a152a9561 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3298c2ca5e390fd0d104357fdeec514a152a9561" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/upenn-cis198-2018f/Lecture6 [INFO] finished tweaking git repo https://github.com/upenn-cis198-2018f/Lecture6 [INFO] tweaked toml for git repo https://github.com/upenn-cis198-2018f/Lecture6 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/upenn-cis198-2018f/Lecture6 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" "+3298c2ca5e390fd0d104357fdeec514a152a9561" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+3298c2ca5e390fd0d104357fdeec514a152a9561" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] df6b6e63579e1902d788cb3c5086ee3ea9e1c679a71a031b3063a23a1ef720d6 [INFO] running `Command { std: "docker" "start" "-a" "df6b6e63579e1902d788cb3c5086ee3ea9e1c679a71a031b3063a23a1ef720d6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "df6b6e63579e1902d788cb3c5086ee3ea9e1c679a71a031b3063a23a1ef720d6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "df6b6e63579e1902d788cb3c5086ee3ea9e1c679a71a031b3063a23a1ef720d6", kill_on_drop: false }` [INFO] [stdout] df6b6e63579e1902d788cb3c5086ee3ea9e1c679a71a031b3063a23a1ef720d6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+3298c2ca5e390fd0d104357fdeec514a152a9561" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 31a77bddbf0687d9453bb92a6fd615fffd58f819558d295628f2929fb593bec7 [INFO] running `Command { std: "docker" "start" "-a" "31a77bddbf0687d9453bb92a6fd615fffd58f819558d295628f2929fb593bec7", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Checking lecture6 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/generics.rs:167:24 [INFO] [stdout] | [INFO] [stdout] 167 | fn has_edge(&self, &N, &N) -> bool; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &N` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] = note: `#[warn(anonymous_parameters)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/generics.rs:167:28 [INFO] [stdout] | [INFO] [stdout] 167 | fn has_edge(&self, &N, &N) -> bool; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &N` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/more_utility_traits.rs:245:13 [INFO] [stdout] | [INFO] [stdout] 245 | fn from(T) -> Self; [INFO] [stdout] | ^ help: try naming the parameter or explicitly ignoring it: `_: T` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/generics.rs:167:24 [INFO] [stdout] | [INFO] [stdout] 167 | fn has_edge(&self, &N, &N) -> bool; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &N` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] = note: `#[warn(anonymous_parameters)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/generics.rs:167:28 [INFO] [stdout] | [INFO] [stdout] 167 | fn has_edge(&self, &N, &N) -> bool; [INFO] [stdout] | ^^ help: try naming the parameter or explicitly ignoring it: `_: &N` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/more_utility_traits.rs:245:13 [INFO] [stdout] | [INFO] [stdout] 245 | fn from(T) -> Self; [INFO] [stdout] | ^ help: try naming the parameter or explicitly ignoring it: `_: T` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Graph` is never used [INFO] [stdout] --> src/generics.rs:166:7 [INFO] [stdout] | [INFO] [stdout] 166 | trait Graph { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Drop` is never used [INFO] [stdout] --> src/more_utility_traits.rs:11:7 [INFO] [stdout] | [INFO] [stdout] 11 | trait Drop { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Clone` is never used [INFO] [stdout] --> src/more_utility_traits.rs:34:7 [INFO] [stdout] | [INFO] [stdout] 34 | trait Clone: Sized { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Potato` is never constructed [INFO] [stdout] --> src/traits.rs:184:8 [INFO] [stdout] | [INFO] [stdout] 184 | struct Potato(Vec); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Summary` is never used [INFO] [stdout] --> src/traits.rs:531:7 [INFO] [stdout] | [INFO] [stdout] 531 | trait Summary { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Summary2` is never used [INFO] [stdout] --> src/traits.rs:622:7 [INFO] [stdout] | [INFO] [stdout] 622 | trait Summary2 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a1` [INFO] [stdout] --> src/traits.rs:258:9 [INFO] [stdout] | [INFO] [stdout] 258 | let a1: AddressBook = Default::default(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_a1` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `a2` [INFO] [stdout] --> src/traits.rs:260:9 [INFO] [stdout] | [INFO] [stdout] 260 | let a2 = AddressBook::default(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_a2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Graph` is never used [INFO] [stdout] --> src/generics.rs:166:7 [INFO] [stdout] | [INFO] [stdout] 166 | trait Graph { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Drop` is never used [INFO] [stdout] --> src/more_utility_traits.rs:11:7 [INFO] [stdout] | [INFO] [stdout] 11 | trait Drop { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Clone` is never used [INFO] [stdout] --> src/more_utility_traits.rs:34:7 [INFO] [stdout] | [INFO] [stdout] 34 | trait Clone: Sized { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Potato` is never constructed [INFO] [stdout] --> src/traits.rs:184:8 [INFO] [stdout] | [INFO] [stdout] 184 | struct Potato(Vec); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Summary` is never used [INFO] [stdout] --> src/traits.rs:531:7 [INFO] [stdout] | [INFO] [stdout] 531 | trait Summary { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Summary2` is never used [INFO] [stdout] --> src/traits.rs:622:7 [INFO] [stdout] | [INFO] [stdout] 622 | trait Summary2 { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s [INFO] running `Command { std: "docker" "inspect" "31a77bddbf0687d9453bb92a6fd615fffd58f819558d295628f2929fb593bec7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "31a77bddbf0687d9453bb92a6fd615fffd58f819558d295628f2929fb593bec7", kill_on_drop: false }` [INFO] [stdout] 31a77bddbf0687d9453bb92a6fd615fffd58f819558d295628f2929fb593bec7