[INFO] cloning repository https://github.com/Nilstrieb/dumb-json
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nilstrieb/dumb-json" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNilstrieb%2Fdumb-json", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNilstrieb%2Fdumb-json'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1620b2455b1483ed8357eb5255a89b9ab1696de0
[INFO] checking Nilstrieb/dumb-json against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNilstrieb%2Fdumb-json" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Nilstrieb/dumb-json on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/Nilstrieb/dumb-json
[INFO] finished tweaking git repo https://github.com/Nilstrieb/dumb-json
[INFO] tweaked toml for git repo https://github.com/Nilstrieb/dumb-json written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Nilstrieb/dumb-json already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7cd8a872bde2ee8c29d286ea2cd70914b54188b40fc00d16b727e4353ccf32c6
[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" "7cd8a872bde2ee8c29d286ea2cd70914b54188b40fc00d16b727e4353ccf32c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cd8a872bde2ee8c29d286ea2cd70914b54188b40fc00d16b727e4353ccf32c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cd8a872bde2ee8c29d286ea2cd70914b54188b40fc00d16b727e4353ccf32c6", kill_on_drop: false }`
[INFO] [stdout] 7cd8a872bde2ee8c29d286ea2cd70914b54188b40fc00d16b727e4353ccf32c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 5d0c8b2f5e75c51facfbf8c0554b5743fadfd74998dac9aca410cff85247c53c
[INFO] running `Command { std: "docker" "start" "-a" "5d0c8b2f5e75c51facfbf8c0554b5743fadfd74998dac9aca410cff85247c53c", kill_on_drop: false }`
[INFO] [stderr]     Checking dumb-json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find function `parse_json` in this scope
[INFO] [stdout]   --> src/lib.rs:58:21
[INFO] [stdout]    |
[INFO] [stdout] 58 |         let value = parse_json("null").unwrap();
[INFO] [stdout]    |                     ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `parse_json` in this scope
[INFO] [stdout]   --> src/lib.rs:64:21
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let value = parse_json("1353").unwrap();
[INFO] [stdout]    |                     ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `parse_json` in this scope
[INFO] [stdout]   --> src/lib.rs:66:21
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let value = parse_json("1353.1").unwrap();
[INFO] [stdout]    |                     ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `parse_json` in this scope
[INFO] [stdout]   --> src/lib.rs:68:21
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let value = parse_json("0.0").unwrap();
[INFO] [stdout]    |                     ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `parse_json` in this scope
[INFO] [stdout]   --> src/lib.rs:70:21
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let value = parse_json("6.6.6");
[INFO] [stdout]    |                     ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `parse_json` in this scope
[INFO] [stdout]   --> src/lib.rs:76:21
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let value = parse_json(r#""test""#).unwrap();
[INFO] [stdout]    |                     ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `parse_json` in this scope
[INFO] [stdout]   --> src/lib.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |         let value = parse_json(r#""test ttttt test""#).unwrap();
[INFO] [stdout]    |                     ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `parse_json` in this scope
[INFO] [stdout]   --> src/lib.rs:80:21
[INFO] [stdout]    |
[INFO] [stdout] 80 |         let value = parse_json(r#""hi"#);
[INFO] [stdout]    |                     ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `parse_json` in this scope
[INFO] [stdout]   --> src/lib.rs:82:21
[INFO] [stdout]    |
[INFO] [stdout] 82 |         let value = parse_json(r#"hi""#);
[INFO] [stdout]    |                     ^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_syntax)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_syntax)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: a value of type `(&str, Vec<char>)` cannot be built from an iterator over elements of type `(&str, char)`
[INFO] [stdout]   --> src/lib.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |         .collect::<ParseResult<Vec<char>>>()
[INFO] [stdout]    |          ^^^^^^^ value of type `(&str, Vec<char>)` cannot be built from `std::iter::Iterator<Item=(&str, char)>`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromIterator<(&str, char)>` is not implemented for `(&str, Vec<char>)`
[INFO] [stdout]    = note: required because of the requirements on the impl of `FromIterator<Result<(&str, char), ParseErr>>` for `Result<(&str, Vec<char>), ParseErr>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0271]: type mismatch resolving `for<'r> <[closure@src/lib.rs:22:21: 34:6] as FnOnce<(&'r str,)>>::Output == Result<(&'r str, &str), ParseErr>`
[INFO] [stdout]   --> src/lib.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     Parser(inner)
[INFO] [stdout]    |            ^^^^^ expected struct `ParseErr`, found struct `String`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `Result<(&str, &str), ParseErr>`
[INFO] [stdout]               found enum `Result<_, String>`
[INFO] [stdout]    = note: required for the cast to the object type `dyn for<'r> Fn(&'r str) -> Result<(&str, &str), ParseErr>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     Parser(inner)
[INFO] [stdout]    |            ^^^^^ one type is more general than the other
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `Result<(&str, _), _>`
[INFO] [stdout]               found enum `Result<(&str, _), _>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 13 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0271, E0277, E0308, E0425, E0554.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dumb-json` due to 14 previous errors
[INFO] [stdout] For more information about an error, try `rustc --explain E0271`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0277]: a value of type `(&str, Vec<char>)` cannot be built from an iterator over elements of type `(&str, char)`
[INFO] [stdout]   --> src/lib.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |         .collect::<ParseResult<Vec<char>>>()
[INFO] [stdout]    |          ^^^^^^^ value of type `(&str, Vec<char>)` cannot be built from `std::iter::Iterator<Item=(&str, char)>`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromIterator<(&str, char)>` is not implemented for `(&str, Vec<char>)`
[INFO] [stdout]    = note: required because of the requirements on the impl of `FromIterator<Result<(&str, char), ParseErr>>` for `Result<(&str, Vec<char>), ParseErr>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0271]: type mismatch resolving `for<'r> <[closure@src/lib.rs:22:21: 34:6] as FnOnce<(&'r str,)>>::Output == Result<(&'r str, &str), ParseErr>`
[INFO] [stdout]   --> src/lib.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     Parser(inner)
[INFO] [stdout]    |            ^^^^^ expected struct `ParseErr`, found struct `String`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `Result<(&str, &str), ParseErr>`
[INFO] [stdout]               found enum `Result<_, String>`
[INFO] [stdout]    = note: required for the cast to the object type `dyn for<'r> Fn(&'r str) -> Result<(&str, &str), ParseErr>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |     Parser(inner)
[INFO] [stdout]    |            ^^^^^ one type is more general than the other
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `Result<(&str, _), _>`
[INFO] [stdout]               found enum `Result<(&str, _), _>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0271, E0277, E0308, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0271`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "5d0c8b2f5e75c51facfbf8c0554b5743fadfd74998dac9aca410cff85247c53c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d0c8b2f5e75c51facfbf8c0554b5743fadfd74998dac9aca410cff85247c53c", kill_on_drop: false }`
[INFO] [stdout] 5d0c8b2f5e75c51facfbf8c0554b5743fadfd74998dac9aca410cff85247c53c
