[INFO] cloning repository https://github.com/marionebl/rust-by-example-exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/marionebl/rust-by-example-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarionebl%2Frust-by-example-exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarionebl%2Frust-by-example-exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b22ea9a4d0448f54fdbc20b0d014f13f44ae816e
[INFO] checking marionebl/rust-by-example-exercises against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarionebl%2Frust-by-example-exercises" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/marionebl/rust-by-example-exercises on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/marionebl/rust-by-example-exercises
[INFO] finished tweaking git repo https://github.com/marionebl/rust-by-example-exercises
[INFO] tweaked toml for git repo https://github.com/marionebl/rust-by-example-exercises written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/marionebl/rust-by-example-exercises already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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] 95fe6ce4c4a24d1802a49af7cc89940490bfa740b582e3f3c12cae33ce5e076e
[INFO] running `Command { std: "docker" "start" "-a" "95fe6ce4c4a24d1802a49af7cc89940490bfa740b582e3f3c12cae33ce5e076e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95fe6ce4c4a24d1802a49af7cc89940490bfa740b582e3f3c12cae33ce5e076e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95fe6ce4c4a24d1802a49af7cc89940490bfa740b582e3f3c12cae33ce5e076e", kill_on_drop: false }`
[INFO] [stdout] 95fe6ce4c4a24d1802a49af7cc89940490bfa740b582e3f3c12cae33ce5e076e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d565b64aa0bee4692d01161ea5628fe40bcc98f4ba0282dc90a6597d0e92cedc
[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" "d565b64aa0bee4692d01161ea5628fe40bcc98f4ba0282dc90a6597d0e92cedc", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-by-example-exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/bin/8-5-match.rs:22:15
[INFO] [stdout]    |
[INFO] [stdout] 22 |             13...19 => println!("This is 13...19"),
[INFO] [stdout]    |               ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `noisy_unused_function`
[INFO] [stdout]  --> src/bin/12-1-attributes-dead-code.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn noisy_unused_function() {}
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/bin/9-2-5-closures-as-output.rs:9:23
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn create_fn() -> Box<Fn()> {
[INFO] [stdout]   |                       ^^^^ help: use `dyn`: `dyn Fn()`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/9-2-5-closures-as-output.rs:14:26
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn create_fnmut() -> Box<FnMut()> {
[INFO] [stdout]    |                          ^^^^^^^ help: use `dyn`: `dyn FnMut()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RGB`
[INFO] [stdout]   --> src/bin/8-5-match.rs:82:5
[INFO] [stdout]    |
[INFO] [stdout] 82 |     RGB(u8, u8, u8),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `HSV`
[INFO] [stdout]   --> src/bin/8-5-match.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     HSV(u16, u8, u8),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `HSL`
[INFO] [stdout]   --> src/bin/8-5-match.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 |     HSL(u16, u8, u8),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CMY`
[INFO] [stdout]   --> src/bin/8-5-match.rs:85:5
[INFO] [stdout]    |
[INFO] [stdout] 85 |     CMY(u8, u8, u8),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CMYK`
[INFO] [stdout]   --> src/bin/8-5-match.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 |     CMYK(u8, u8, u8, u8)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lint `unused_doc_comment` has been renamed to `unused_doc_comments`
[INFO] [stdout]  --> src/bin/3-2-1-enums.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![allow(unused_doc_comment)]
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^^^^ help: use the new name: `unused_doc_comments`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(renamed_and_removed_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected item, found `36`
[INFO] [stdout]   --> src/bin/13-5-2-generic-bounds-multiple.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | 36
[INFO] [stdout]    | ^^ expected item
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-by-example-exercises`
[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] warning: unused label
[INFO] [stdout]   --> src/bin/8-2-loop.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         'inner: loop {
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/bin/8-2-loop.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |             break 'outer;
[INFO] [stdout]    |             ------------ any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 35 |         println!("This point will never be reached");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/bin/3-2-1-enums.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     /// "my_text".to_owned() ~= String::from("my_text");
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 41 |     let pasted = WebEvent::Paste("my text".to_owned());
[INFO] [stdout]    |     --------------------------------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused label
[INFO] [stdout]   --> src/bin/8-2-loop.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         'inner: loop {
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]   --> src/bin/8-2-loop.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |             break 'outer;
[INFO] [stdout]    |             ------------ any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 35 |         println!("This point will never be reached");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[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" "d565b64aa0bee4692d01161ea5628fe40bcc98f4ba0282dc90a6597d0e92cedc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d565b64aa0bee4692d01161ea5628fe40bcc98f4ba0282dc90a6597d0e92cedc", kill_on_drop: false }`
[INFO] [stdout] d565b64aa0bee4692d01161ea5628fe40bcc98f4ba0282dc90a6597d0e92cedc