[INFO] cloning repository https://github.com/latonis/smooth-json
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/latonis/smooth-json" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flatonis%2Fsmooth-json", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flatonis%2Fsmooth-json'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 90be6a4f52c502eeb90ecf6e38587bea01c62e87
[INFO] checking latonis/smooth-json against try#87f2ecc56b5f6032b075c8934ebc77f28d57183c for pr-148190
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flatonis%2Fsmooth-json" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/latonis/smooth-json
[INFO] finished tweaking git repo https://github.com/latonis/smooth-json
[INFO] tweaked toml for git repo https://github.com/latonis/smooth-json written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/latonis/smooth-json on toolchain 87f2ecc56b5f6032b075c8934ebc77f28d57183c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/latonis/smooth-json 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" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 974a7804b640450e53d9bf223c6ec7f0bdfe7e80a09687e4674a116cf81cef20
[INFO] running `Command { std: "docker" "start" "-a" "974a7804b640450e53d9bf223c6ec7f0bdfe7e80a09687e4674a116cf81cef20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "974a7804b640450e53d9bf223c6ec7f0bdfe7e80a09687e4674a116cf81cef20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "974a7804b640450e53d9bf223c6ec7f0bdfe7e80a09687e4674a116cf81cef20", kill_on_drop: false }`
[INFO] [stdout] 974a7804b640450e53d9bf223c6ec7f0bdfe7e80a09687e4674a116cf81cef20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe8b0b8ed43cae0b7020e27752154215d0448351fc6964c28f4a293aa09b13c5
[INFO] running `Command { std: "docker" "start" "-a" "fe8b0b8ed43cae0b7020e27752154215d0448351fc6964c28f4a293aa09b13c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking smooth-json v0.2.7 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:202:37
[INFO] [stdout]     |
[INFO] [stdout] 202 |                 let new_val = json!(vec![v, obj]);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout]     |                                     |
[INFO] [stdout]     |                                     types differ in mutability
[INFO] [stdout]     |                                     arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected array `[&mut Value; _]`
[INFO] [stdout]                found array `[&Value; 2]`
[INFO] [stdout] help: the return type of this call is `[&Value; 2]` due to the type of the argument passed
[INFO] [stdout]    --> src/lib.rs:202:37
[INFO] [stdout]     |
[INFO] [stdout] 202 |                 let new_val = json!(vec![v, obj]);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^ this argument influences the return type of `write_box_via_move`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> /rustc/87f2ecc56b5f6032b075c8934ebc77f28d57183c/library/alloc/src/intrinsics.rs:15:7
[INFO] [stdout]     = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:202:37
[INFO] [stdout]     |
[INFO] [stdout] 202 |                 let new_val = json!(vec![v, obj]);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^
[INFO] [stdout]     |                                     |
[INFO] [stdout]     |                                     types differ in mutability
[INFO] [stdout]     |                                     arguments to this function are incorrect
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected array `[&mut serde_json::Value; _]`
[INFO] [stdout]                found array `[&serde_json::Value; 2]`
[INFO] [stdout] help: the return type of this call is `[&serde_json::Value; 2]` due to the type of the argument passed
[INFO] [stdout]    --> src/lib.rs:202:37
[INFO] [stdout]     |
[INFO] [stdout] 202 |                 let new_val = json!(vec![v, obj]);
[INFO] [stdout]     |                                     ^^^^^^^^^^^^ this argument influences the return type of `write_box_via_move`
[INFO] [stdout] note: function defined here
[INFO] [stdout]    --> /rustc/87f2ecc56b5f6032b075c8934ebc77f28d57183c/library/alloc/src/intrinsics.rs:15:7
[INFO] [stdout]     = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `smooth-json` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `smooth-json` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "fe8b0b8ed43cae0b7020e27752154215d0448351fc6964c28f4a293aa09b13c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe8b0b8ed43cae0b7020e27752154215d0448351fc6964c28f4a293aa09b13c5", kill_on_drop: false }`
[INFO] [stdout] fe8b0b8ed43cae0b7020e27752154215d0448351fc6964c28f4a293aa09b13c5