[INFO] cloning repository https://github.com/ashishjsharda/rust-serialization-guide
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ashishjsharda/rust-serialization-guide" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fashishjsharda%2Frust-serialization-guide", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fashishjsharda%2Frust-serialization-guide'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4ab01a0500fa07be579d7a5e1336944f553f793b
[INFO] checking ashishjsharda/rust-serialization-guide against try#df1b9bf194c9183fb7c0604484171064069ce232 for pr-149195-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fashishjsharda%2Frust-serialization-guide" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ashishjsharda/rust-serialization-guide
[INFO] finished tweaking git repo https://github.com/ashishjsharda/rust-serialization-guide
[INFO] tweaked toml for git repo https://github.com/ashishjsharda/rust-serialization-guide written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ashishjsharda/rust-serialization-guide on toolchain df1b9bf194c9183fb7c0604484171064069ce232
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ashishjsharda/rust-serialization-guide 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" "+df1b9bf194c9183fb7c0604484171064069ce232" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.200
[INFO] [stderr]   Downloaded serde v1.0.200
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b471daaf6afe18bff3ef1a21403a6ab543e69511d60069f3e8cb506c239ebb9a
[INFO] running `Command { std: "docker" "start" "-a" "b471daaf6afe18bff3ef1a21403a6ab543e69511d60069f3e8cb506c239ebb9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b471daaf6afe18bff3ef1a21403a6ab543e69511d60069f3e8cb506c239ebb9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b471daaf6afe18bff3ef1a21403a6ab543e69511d60069f3e8cb506c239ebb9a", kill_on_drop: false }`
[INFO] [stdout] b471daaf6afe18bff3ef1a21403a6ab543e69511d60069f3e8cb506c239ebb9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7497ae371b2fccc01eecbff36c724edd278e81c0e313af739a201b8b5cb534b
[INFO] running `Command { std: "docker" "start" "-a" "b7497ae371b2fccc01eecbff36c724edd278e81c0e313af739a201b8b5cb534b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.200
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.60
[INFO] [stderr]    Compiling serde_derive v1.0.200
[INFO] [stderr]     Checking serde_json v1.0.116
[INFO] [stderr]     Checking rust-serialization-guide v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `crate::models`
[INFO] [stdout]  --> src/json_examples.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::models::User;
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            unresolved import
[INFO] [stdout]   |            help: a similar path exists: `rust_serialization_guide::models`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `json_demo`
[INFO] [stdout]   --> src/json_examples.rs:17:2
[INFO] [stdout]    |
[INFO] [stdout] 17 | }
[INFO] [stdout]    |  ^ consider adding a `main` function to `src/json_examples.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]  --> src/custom_serializer.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Point {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `crate::models`
[INFO] [stdout]  --> src/json_examples.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::models::User;
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            unresolved import
[INFO] [stdout]   |            help: a similar path exists: `rust_serialization_guide::models`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-serialization-guide` (bin "json_demo") due to 2 previous errors
[INFO] [stdout] Some errors have detailed explanations: E0432, E0601.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-serialization-guide` (bin "json_demo" test) due to 1 previous error
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]  --> src/custom_serializer.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Point {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b7497ae371b2fccc01eecbff36c724edd278e81c0e313af739a201b8b5cb534b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7497ae371b2fccc01eecbff36c724edd278e81c0e313af739a201b8b5cb534b", kill_on_drop: false }`
[INFO] [stdout] b7497ae371b2fccc01eecbff36c724edd278e81c0e313af739a201b8b5cb534b