[INFO] cloning repository https://github.com/jeraldgan/rust-primer [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jeraldgan/rust-primer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeraldgan%2Frust-primer", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeraldgan%2Frust-primer'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8722a96df067afa7439b1de35ff57b32ad9c3f66 [INFO] checking jeraldgan/rust-primer against master#7dc9ff5c629753b6930ecfe9a0446538b8e25fb7 for pr-85387 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeraldgan%2Frust-primer" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jeraldgan/rust-primer on toolchain 7dc9ff5c629753b6930ecfe9a0446538b8e25fb7 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jeraldgan/rust-primer [INFO] finished tweaking git repo https://github.com/jeraldgan/rust-primer [INFO] tweaked toml for git repo https://github.com/jeraldgan/rust-primer written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/jeraldgan/rust-primer already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 56099d9f744503ab8bf74478438ae2e5fd8bb5e6c67b9f52c666fd3deb521db8 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "56099d9f744503ab8bf74478438ae2e5fd8bb5e6c67b9f52c666fd3deb521db8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "56099d9f744503ab8bf74478438ae2e5fd8bb5e6c67b9f52c666fd3deb521db8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "56099d9f744503ab8bf74478438ae2e5fd8bb5e6c67b9f52c666fd3deb521db8", kill_on_drop: false }` [INFO] [stdout] 56099d9f744503ab8bf74478438ae2e5fd8bb5e6c67b9f52c666fd3deb521db8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] bb010af92a2e1f9a6fa664ed540155182b126adb663904f048da0481f39bfa77 [INFO] running `Command { std: "docker" "start" "-a" "bb010af92a2e1f9a6fa664ed540155182b126adb663904f048da0481f39bfa77", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.65 [INFO] [stderr] Compiling libc v0.2.91 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking demo-structs v0.1.0 (/opt/rustwide/workdir/03-structs-lifetimes/demo) [INFO] [stderr] Checking structs-exercise v0.1.0 (/opt/rustwide/workdir/02-basics/exercise) [INFO] [stderr] Checking exercise-libraries v0.1.0 (/opt/rustwide/workdir/07-external-libraries/exercise) [INFO] [stderr] Checking solution-match v0.1.0 (/opt/rustwide/workdir/05-match-result/solution) [INFO] [stderr] Checking demo-stuff v0.1.0 (/opt/rustwide/workdir/01-hello/demo) [INFO] [stderr] Checking solution v0.1.0 (/opt/rustwide/workdir/01-hello/solution) [INFO] [stderr] Checking demo v0.1.0 (/opt/rustwide/workdir/02-basics/demo) [INFO] [stderr] Checking exercise-match v0.1.0 (/opt/rustwide/workdir/05-match-result/exercise) [INFO] [stderr] Checking demo-strings v0.1.0 (/opt/rustwide/workdir/06-strings/demo) [INFO] [stdout] error: expected one of `!` or `::`, found `:` [INFO] [stdout] --> 07-external-libraries/exercise/src/main.rs:21:6 [INFO] [stdout] | [INFO] [stdout] 21 | https://docs.serde.rs/serde_json/#parsing-json-as-strongly-typed-data-structures [INFO] [stdout] | ^ expected one of `!` or `::` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `exercise-libraries` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: expected one of `!` or `::`, found `:` [INFO] [stdout] --> 07-external-libraries/exercise/src/main.rs:21:6 [INFO] [stdout] | [INFO] [stdout] 21 | https://docs.serde.rs/serde_json/#parsing-json-as-strongly-typed-data-structures [INFO] [stdout] | ^ expected one of `!` or `::` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> 05-match-result/solution/src/main.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s2` [INFO] [stdout] --> 06-strings/demo/src/main.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | let s2: String = String::from_str(s).unwrap(); // s could be invalid bytes for a String [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s2` [INFO] [stdout] --> 06-strings/demo/src/main.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let s2: String = s.to_owned(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `s3` [INFO] [stdout] --> 06-strings/demo/src/main.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | let s3: &str = s2.as_str(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_s3` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> 02-basics/exercise/src/main.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | let x: u8 = 1; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `xs` [INFO] [stdout] --> 02-basics/exercise/src/main.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | let xs = [1, 2, 3, 4, 5]; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_xs` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> 05-match-result/exercise/src/main.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Bunny` [INFO] [stdout] --> 05-match-result/solution/src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | Bunny, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Teapot` [INFO] [stdout] --> 05-match-result/solution/src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | Teapot, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `parse_value` [INFO] [stdout] --> 05-match-result/solution/src/main.rs:11:4 [INFO] [stdout] | [INFO] [stdout] 11 | fn parse_value(input: &str) -> Option { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `input` [INFO] [stdout] --> 05-match-result/exercise/src/main.rs:11:16 [INFO] [stdout] | [INFO] [stdout] 11 | fn parse_value(input: &str) -> Sculpture { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_input` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Bunny` [INFO] [stdout] --> 05-match-result/exercise/src/main.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | Bunny, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Teapot` [INFO] [stdout] --> 05-match-result/exercise/src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | Teapot, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `parse_value` [INFO] [stdout] --> 05-match-result/exercise/src/main.rs:11:4 [INFO] [stdout] | [INFO] [stdout] 11 | fn parse_value(input: &str) -> Sculpture { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> 03-structs-lifetimes/demo/src/main.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 18 | fn new(width: u32, height: u32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `double_area_rect_reference` [INFO] [stdout] --> 03-structs-lifetimes/demo/src/main.rs:73:4 [INFO] [stdout] | [INFO] [stdout] 73 | fn double_area_rect_reference(rect: &Rectangle) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> 03-structs-lifetimes/demo/src/main.rs:18:8 [INFO] [stdout] | [INFO] [stdout] 18 | fn new(width: u32, height: u32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `double_area_rect_reference` [INFO] [stdout] --> 03-structs-lifetimes/demo/src/main.rs:73:4 [INFO] [stdout] | [INFO] [stdout] 73 | fn double_area_rect_reference(rect: &Rectangle) -> u32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "bb010af92a2e1f9a6fa664ed540155182b126adb663904f048da0481f39bfa77", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bb010af92a2e1f9a6fa664ed540155182b126adb663904f048da0481f39bfa77", kill_on_drop: false }` [INFO] [stdout] bb010af92a2e1f9a6fa664ed540155182b126adb663904f048da0481f39bfa77