[INFO] cloning repository https://github.com/rcapraro/json-diff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rcapraro/json-diff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frcapraro%2Fjson-diff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frcapraro%2Fjson-diff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e3a1db86f0a549420dea720a3229bb4629e13c4
[INFO] checking rcapraro/json-diff against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frcapraro%2Fjson-diff" "/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/rcapraro/json-diff on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rcapraro/json-diff
[INFO] finished tweaking git repo https://github.com/rcapraro/json-diff
[INFO] tweaked toml for git repo https://github.com/rcapraro/json-diff written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rcapraro/json-diff 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf63f2ca7fa0953f804b7393cde5a7cc3320061cd0f34ff3a595836437add364
[INFO] running `Command { std: "docker" "start" "-a" "cf63f2ca7fa0953f804b7393cde5a7cc3320061cd0f34ff3a595836437add364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf63f2ca7fa0953f804b7393cde5a7cc3320061cd0f34ff3a595836437add364", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf63f2ca7fa0953f804b7393cde5a7cc3320061cd0f34ff3a595836437add364", kill_on_drop: false }`
[INFO] [stdout] cf63f2ca7fa0953f804b7393cde5a7cc3320061cd0f34ff3a595836437add364
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 166339b6a2f43e2e749fcb905c72e3f97b12166bf97d28a12387932a376b4f82
[INFO] running `Command { std: "docker" "start" "-a" "166339b6a2f43e2e749fcb905c72e3f97b12166bf97d28a12387932a376b4f82", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]    Compiling structopt-derive v0.4.10
[INFO] [stderr]    Compiling extend v0.1.2
[INFO] [stderr]     Checking assert-json-diff v1.1.0
[INFO] [stderr]     Checking structopt v0.3.17
[INFO] [stderr]     Checking json-diff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `value1`
[INFO] [stdout]   --> src/mismatch.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn match_json(value1: &Value, value2: &Value) -> Mismatch {
[INFO] [stdout]    |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_value1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value1`
[INFO] [stdout]   --> src/mismatch.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn match_json(value1: &Value, value2: &Value) -> Mismatch {
[INFO] [stdout]    |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_value1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value2`
[INFO] [stdout]   --> src/mismatch.rs:28:35
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn match_json(value1: &Value, value2: &Value) -> Mismatch {
[INFO] [stdout]    |                                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_value2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value2`
[INFO] [stdout]   --> src/mismatch.rs:28:35
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn match_json(value1: &Value, value2: &Value) -> Mismatch {
[INFO] [stdout]    |                                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_value2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Nil`, `Value`, and `Node` are never constructed
[INFO] [stdout]  --> src/mismatch.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum JsonNode {
[INFO] [stdout]   |          -------- variants in this enum
[INFO] [stdout] 6 |     Nil,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 7 |     Value(Value, Value),
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 8 |     Node(HashMap<String, JsonNode>)
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `JsonNode` 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: variants `Nil`, `Value`, and `Node` are never constructed
[INFO] [stdout]  --> src/mismatch.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum JsonNode {
[INFO] [stdout]   |          -------- variants in this enum
[INFO] [stdout] 6 |     Nil,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 7 |     Value(Value, Value),
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 8 |     Node(HashMap<String, JsonNode>)
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `JsonNode` 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: associated function `new` is never used
[INFO] [stdout]   --> src/mismatch.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Mismatch {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 19 |     pub fn new(l: JsonNode, r: JsonNode, u: JsonNode) -> Mismatch {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/mismatch.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Mismatch {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 19 |     pub fn new(l: JsonNode, r: JsonNode, u: JsonNode) -> Mismatch {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `match_json` is never used
[INFO] [stdout]   --> src/mismatch.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn match_json(value1: &Value, value2: &Value) -> Mismatch {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `match_json` is never used
[INFO] [stdout]   --> src/mismatch.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub fn match_json(value1: &Value, value2: &Value) -> Mismatch {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.26s
[INFO] running `Command { std: "docker" "inspect" "166339b6a2f43e2e749fcb905c72e3f97b12166bf97d28a12387932a376b4f82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "166339b6a2f43e2e749fcb905c72e3f97b12166bf97d28a12387932a376b4f82", kill_on_drop: false }`
[INFO] [stdout] 166339b6a2f43e2e749fcb905c72e3f97b12166bf97d28a12387932a376b4f82