[INFO] cloning repository https://github.com/maartends/vrt2json-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maartends/vrt2json-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaartends%2Fvrt2json-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaartends%2Fvrt2json-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9a09b8600917dd2ab62c8a574a9a5b50ba740d83
[INFO] testing maartends/vrt2json-rust against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaartends%2Fvrt2json-rust" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maartends/vrt2json-rust on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/maartends/vrt2json-rust
[INFO] finished tweaking git repo https://github.com/maartends/vrt2json-rust
[INFO] tweaked toml for git repo https://github.com/maartends/vrt2json-rust written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate git repo https://github.com/maartends/vrt2json-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1b67064dff46bfcc22a32f9e6a6eee825512b48f825c070ff80e48c26aadafd2
[INFO] running `Command { std: "docker" "start" "-a" "1b67064dff46bfcc22a32f9e6a6eee825512b48f825c070ff80e48c26aadafd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b67064dff46bfcc22a32f9e6a6eee825512b48f825c070ff80e48c26aadafd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b67064dff46bfcc22a32f9e6a6eee825512b48f825c070ff80e48c26aadafd2", kill_on_drop: false }`
[INFO] [stdout] 1b67064dff46bfcc22a32f9e6a6eee825512b48f825c070ff80e48c26aadafd2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 282544fbe5f2bb9400f566f19ef5b6098a396498b7caa0c857d5bc57f3388714
[INFO] running `Command { std: "docker" "start" "-a" "282544fbe5f2bb9400f566f19ef5b6098a396498b7caa0c857d5bc57f3388714", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling xml-rs v0.3.6
[INFO] [stderr]    Compiling xmlJSON v0.2.0
[INFO] [stderr]    Compiling vrt2json-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `rustc_serialize`
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate rustc_serialize;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout]   |
[INFO] [stdout]   = help: maybe you need to install the missing components with: `rustup component add rust-src rustc-dev llvm-tools-preview`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `json`
[INFO] [stdout]   --> src/main.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let jsn : json::Json = document.to_json();
[INFO] [stdout]    |               ^^^^ use of undeclared crate or module `json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `to_json` found for struct `XmlDocument` in the current scope
[INFO] [stdout]     --> src/main.rs:11:37
[INFO] [stdout]      |
[INFO] [stdout] 11   |     let jsn : json::Json = document.to_json();
[INFO] [stdout]      |                                     ^^^^^^^ method not found in `XmlDocument`
[INFO] [stdout]      |
[INFO] [stdout]     ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.24/src/json.rs:2381:8
[INFO] [stdout]      |
[INFO] [stdout] 2381 |     fn to_json(&self) -> Json;
[INFO] [stdout]      |        ------- the method is available for `XmlDocument` here
[INFO] [stdout]      |
[INFO] [stdout]      = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]      |
[INFO] [stdout] 4    | use rustc_serialize::json::ToJson;
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0433, E0463, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vrt2json-rust` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "282544fbe5f2bb9400f566f19ef5b6098a396498b7caa0c857d5bc57f3388714", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "282544fbe5f2bb9400f566f19ef5b6098a396498b7caa0c857d5bc57f3388714", kill_on_drop: false }`
[INFO] [stdout] 282544fbe5f2bb9400f566f19ef5b6098a396498b7caa0c857d5bc57f3388714