[INFO] cloning repository https://github.com/K-dash/100-exercises-to-learn-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/K-dash/100-exercises-to-learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FK-dash%2F100-exercises-to-learn-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FK-dash%2F100-exercises-to-learn-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0b18dc25d9d0fdd085589306c039ab4b172bf889
[INFO] checking K-dash/100-exercises-to-learn-rust/0b18dc25d9d0fdd085589306c039ab4b172bf889 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FK-dash%2F100-exercises-to-learn-rust" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/K-dash/100-exercises-to-learn-rust on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/K-dash/100-exercises-to-learn-rust
[INFO] finished tweaking git repo https://github.com/K-dash/100-exercises-to-learn-rust
[INFO] tweaked toml for git repo https://github.com/K-dash/100-exercises-to-learn-rust written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/K-dash/100-exercises-to-learn-rust 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.82
[INFO] [stderr]   Downloaded warp v0.3.7
[INFO] [stderr]   Downloaded terminal_size v0.3.0
[INFO] [stderr]   Downloaded phf_codegen v0.11.2
[INFO] [stderr]   Downloaded anstyle-query v1.0.3
[INFO] [stderr]   Downloaded kqueue v1.0.8
[INFO] [stderr]   Downloaded notify-debouncer-mini v0.4.1
[INFO] [stderr]   Downloaded opener v0.7.1
[INFO] [stderr]   Downloaded filetime v0.2.23
[INFO] [stderr]   Downloaded markup5ever v0.12.1
[INFO] [stderr]   Downloaded ammonia v4.0.0
[INFO] [stderr]   Downloaded html5ever v0.27.0
[INFO] [stderr]   Downloaded pest_meta v2.7.10
[INFO] [stderr]   Downloaded handlebars v5.1.2
[INFO] [stderr]   Downloaded elasticlunr-rs v3.0.2
[INFO] [stderr]   Downloaded pest v2.7.10
[INFO] [stderr]   Downloaded pulldown-cmark v0.10.3
[INFO] [stderr]   Downloaded dbus v0.9.7
[INFO] [stderr]   Downloaded cc v1.0.97
[INFO] [stderr]   Downloaded clap_complete v4.5.2
[INFO] [stderr]   Downloaded pest_derive v2.7.10
[INFO] [stderr]   Downloaded notify v6.1.1
[INFO] [stderr]   Downloaded normpath v1.2.0
[INFO] [stderr]   Downloaded syn v2.0.63
[INFO] [stderr]   Downloaded pulldown-cmark-escape v0.10.1
[INFO] [stderr]   Downloaded topological-sort v0.2.2
[INFO] [stderr]   Downloaded thiserror-impl v1.0.60
[INFO] [stderr]   Downloaded thiserror v1.0.60
[INFO] [stderr]   Downloaded bstr v1.9.1
[INFO] [stderr]   Downloaded pest_generator v2.7.10
[INFO] [stderr]   Downloaded kqueue-sys v1.0.4
[INFO] [stderr]   Downloaded libdbus-sys v0.2.5
[INFO] [stderr]   Downloaded mdbook v0.4.40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0cf1125b3f495d9edfb4a9627eb4cd53f39688cc177220266d62192459ecbf15
[INFO] running `Command { std: "docker" "start" "-a" "0cf1125b3f495d9edfb4a9627eb4cd53f39688cc177220266d62192459ecbf15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cf1125b3f495d9edfb4a9627eb4cd53f39688cc177220266d62192459ecbf15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cf1125b3f495d9edfb4a9627eb4cd53f39688cc177220266d62192459ecbf15", kill_on_drop: false }`
[INFO] [stdout] 0cf1125b3f495d9edfb4a9627eb4cd53f39688cc177220266d62192459ecbf15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7877139fa5f1753fcba6c30051c57b01a24b8d9ca60bfd9669670e9d400cfb4d
[INFO] running `Command { std: "docker" "start" "-a" "7877139fa5f1753fcba6c30051c57b01a24b8d9ca60bfd9669670e9d400cfb4d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.82
[INFO] [stderr]    Compiling thiserror v1.0.60
[INFO] [stderr]     Checking common v0.1.0 (/opt/rustwide/workdir/helpers/common)
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]     Checking new_debug_unreachable v1.0.6
[INFO] [stderr]     Checking anstyle-parse v0.2.4
[INFO] [stderr]     Checking colorchoice v1.0.1
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.0
[INFO] [stderr]     Checking anstyle v1.0.7
[INFO] [stderr]     Checking anstyle-query v1.0.3
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]     Checking futf v0.1.5
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling phf_shared v0.11.2
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]     Checking anstream v0.6.14
[INFO] [stderr]     Checking tendril v0.4.3
[INFO] [stderr]     Checking strsim v0.11.1
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]    Compiling pulldown-cmark v0.10.3
[INFO] [stderr]     Checking ucd-trie v0.1.6
[INFO] [stderr]     Checking phf v0.11.2
[INFO] [stderr]     Checking headers v0.3.9
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]     Checking fastrand v2.1.0
[INFO] [stderr]     Checking pulldown-cmark-escape v0.10.1
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]     Checking shlex v1.3.0
[INFO] [stderr]     Checking topological-sort v0.2.2
[INFO] [stderr]     Checking pathdiff v0.2.1
[INFO] [stderr]     Checking outro_03 v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/14_outro)
[INFO] [stderr]     Checking outro_02 v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/12_outro)
[INFO] [stderr]     Checking error_trait v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/09_error_trait)
[INFO] [stderr]     Checking setters v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/07_setters)
[INFO] [stderr]     Checking validation v0.1.0 (/opt/rustwide/workdir/exercises/03_ticket_v1/02_validation)
[INFO] [stderr]     Checking str_slice v0.1.0 (/opt/rustwide/workdir/exercises/04_traits/06_str_slice)
[INFO] [stderr]     Checking crossbeam-channel v0.5.13
[INFO] [stdout] error[E0277]: the trait bound `TicketNewError: AmbiguousIfMoreThanOne<Token>` is not satisfied
[INFO] [stdout]    --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:104:22
[INFO] [stdout]     |
[INFO] [stdout] 104 |     assert_impl_one!(TicketNewError: std::error::Error);
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^ the trait `std::error::Error` is not implemented for `TicketNewError`, which is required by `TicketNewError: AmbiguousIfMoreThanOne<_>`
[INFO] [stdout]     |
[INFO] [stdout] note: required for `TicketNewError` to implement `AmbiguousIfMoreThanOne<Token>`
[INFO] [stdout]    --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout] 104 |     assert_impl_one!(TicketNewError: std::error::Error);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound introduced here
[INFO] [stdout]     = note: this error originates in the macro `assert_impl_one` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `title`, `description`, and `status` are never read
[INFO] [stdout]  --> exercises/03_ticket_v1/02_validation/src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Ticket {
[INFO] [stdout]   |        ------ fields in this struct
[INFO] [stdout] 4 |     title: String,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 5 |     description: String,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 6 |     status: String,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `TicketNewError` doesn't implement `std::fmt::Display`
[INFO] [stdout]    --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:101:34
[INFO] [stdout]     |
[INFO] [stdout] 101 |         assert_eq!(format!("{}", ticket.unwrap_err()), "Title cannot be empty");
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^ `TicketNewError` cannot be formatted with the default formatter
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `std::fmt::Display` is not implemented for `TicketNewError`
[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::__export::format_args` which comes from the expansion of the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `title`
[INFO] [stdout]   --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn easy_ticket(title: String, description: String, status: Status) -> Ticket {
[INFO] [stdout]    |                ^^^^^ help: if this is intentional, prefix it with an underscore: `_title`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `description`
[INFO] [stdout]   --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:15:31
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn easy_ticket(title: String, description: String, status: Status) -> Ticket {
[INFO] [stdout]    |                               ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_description`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status`
[INFO] [stdout]   --> exercises/05_ticket_v2/09_error_trait/src/lib.rs:15:52
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn easy_ticket(title: String, description: String, status: Status) -> Ticket {
[INFO] [stdout]    |                                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stdout] error: aborting due to 2 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr]     Checking fallibility v0.1.0 (/opt/rustwide/workdir/exercises/05_ticket_v2/06_fallibility)
[INFO] [stderr] error: could not compile `error_trait` (lib test) due to 3 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variants `InProgress` and `Done` are never constructed
[INFO] [stdout]   --> exercises/05_ticket_v2/06_fallibility/src/lib.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | enum Status {
[INFO] [stdout]    |      ------ variants in this enum
[INFO] [stdout] 13 |     ToDo,
[INFO] [stdout] 14 |     InProgress { assigned_to: String },
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 15 |     Done,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Status` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7877139fa5f1753fcba6c30051c57b01a24b8d9ca60bfd9669670e9d400cfb4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7877139fa5f1753fcba6c30051c57b01a24b8d9ca60bfd9669670e9d400cfb4d", kill_on_drop: false }`
[INFO] [stdout] 7877139fa5f1753fcba6c30051c57b01a24b8d9ca60bfd9669670e9d400cfb4d