[INFO] cloning repository https://github.com/tweedegolf/rust-workshop-exercises [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tweedegolf/rust-workshop-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftweedegolf%2Frust-workshop-exercises", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftweedegolf%2Frust-workshop-exercises'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0ce208b93c4f1dea8ca1f17b67efc555707e891c [INFO] testing tweedegolf/rust-workshop-exercises against 1.60.0 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftweedegolf%2Frust-workshop-exercises" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tweedegolf/rust-workshop-exercises on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/tweedegolf/rust-workshop-exercises [INFO] finished tweaking git repo https://github.com/tweedegolf/rust-workshop-exercises [INFO] tweaked toml for git repo https://github.com/tweedegolf/rust-workshop-exercises written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/tweedegolf/rust-workshop-exercises already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", 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] bad6f1838057b7881e75389f7cd0628cacab0f041d063940cfdc357a2f37b2ce [INFO] running `Command { std: "docker" "start" "-a" "bad6f1838057b7881e75389f7cd0628cacab0f041d063940cfdc357a2f37b2ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bad6f1838057b7881e75389f7cd0628cacab0f041d063940cfdc357a2f37b2ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bad6f1838057b7881e75389f7cd0628cacab0f041d063940cfdc357a2f37b2ce", kill_on_drop: false }` [INFO] [stdout] bad6f1838057b7881e75389f7cd0628cacab0f041d063940cfdc357a2f37b2ce [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--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] bacef20b5f5fcfa6f2c56891cc9ccad370a4bc968188b252720f44b7cb0cdb38 [INFO] running `Command { std: "docker" "start" "-a" "bacef20b5f5fcfa6f2c56891cc9ccad370a4bc968188b252720f44b7cb0cdb38", kill_on_drop: false }` [INFO] [stderr] Compiling ryu v1.0.6 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling serde_json v1.0.72 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling rust-workshop-exercises v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: 2 positional arguments in format string, but no arguments were given [INFO] [stdout] --> src/bin/03.rs:6:15 [INFO] [stdout] | [INFO] [stdout] 6 | println!("{} is largest and {} is smallest"); [INFO] [stdout] | ^^ ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: `()` doesn't implement `std::fmt::Display` [INFO] [stdout] --> src/bin/01.rs:2:20 [INFO] [stdout] | [INFO] [stdout] 2 | println!("{}", multiply(10, 20)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ `()` cannot be formatted with the default formatter [INFO] [stdout] | [INFO] [stdout] = help: the trait `std::fmt::Display` is not implemented for `()` [INFO] [stdout] = note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead [INFO] [stdout] = note: this error originates in the macro `$crate::format_args_nl` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust-workshop-exercises` due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/bin/02.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | if (bigger(10, 20)) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 2 - if (bigger(10, 20)) { [INFO] [stdout] 2 + if bigger(10, 20) { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: expected one of `)`, `,`, `@`, or `|`, found keyword `in` [INFO] [stdout] --> src/bin/04.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | for (n in [10, 20, 30, 40]) { [INFO] [stdout] | ^^ expected one of `)`, `,`, `@`, or `|` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: unexpected parentheses surrounding `for` loop head [INFO] [stdout] --> src/bin/04.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | for (n in [10, 20, 30, 40]) { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove parentheses in `for` loop [INFO] [stdout] | [INFO] [stdout] 2 - for (n in [10, 20, 30, 40]) { [INFO] [stdout] 2 + for n in [10, 20, 30, 40] { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0609]: no field `i` on type `[{integer}; 5]` [INFO] [stdout] --> src/bin/05.rs:4:29 [INFO] [stdout] | [INFO] [stdout] 4 | half_even(&mut data.i); [INFO] [stdout] | ^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0609`. [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/bin/02.rs:2:8 [INFO] [stdout] | [INFO] [stdout] 2 | if (bigger(10, 20)) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^ expected `bool`, found `i32` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/bin/02.rs:9:30 [INFO] [stdout] | [INFO] [stdout] 9 | fn bigger(a: i32, b: i32) -> i32 { [INFO] [stdout] | ------ ^^^ expected `i32`, found `()` [INFO] [stdout] | | [INFO] [stdout] | implicitly returns `()` as its body has no tail or `return` expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/bin/01.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | fn multiply(a: i32, b: i32) { [INFO] [stdout] | - help: try adding a return type: `-> i32` [INFO] [stdout] 6 | a * b [INFO] [stdout] | ^^^^^ expected `()`, found `i32` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0277, E0308. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stdout] error[E0308]: `if` and `else` have incompatible types [INFO] [stdout] --> src/bin/04.rs:6:13 [INFO] [stdout] | [INFO] [stdout] 3 | let mult = if n < 25 { [INFO] [stdout] | ____________________- [INFO] [stdout] 4 | | n * 4 [INFO] [stdout] | | ----- expected because of this [INFO] [stdout] 5 | | } else { [INFO] [stdout] 6 | | n * 3; [INFO] [stdout] | | ^^^^^- [INFO] [stdout] | | | | [INFO] [stdout] | | | help: consider removing this semicolon [INFO] [stdout] | | expected integer, found `()` [INFO] [stdout] 7 | | }; [INFO] [stdout] | |_________- `if` and `else` have incompatible types [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0308`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "bacef20b5f5fcfa6f2c56891cc9ccad370a4bc968188b252720f44b7cb0cdb38", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bacef20b5f5fcfa6f2c56891cc9ccad370a4bc968188b252720f44b7cb0cdb38", kill_on_drop: false }` [INFO] [stdout] bacef20b5f5fcfa6f2c56891cc9ccad370a4bc968188b252720f44b7cb0cdb38