[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] testing rcapraro/json-diff against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frcapraro%2Fjson-diff" "/workspace/builds/worker-49/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-49/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rcapraro/json-diff on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-49/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: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f974307c2297431d488e61b794e07cf78763cbf81829826dc3066909ebebc65
[INFO] running `Command { std: "docker" "start" "-a" "1f974307c2297431d488e61b794e07cf78763cbf81829826dc3066909ebebc65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f974307c2297431d488e61b794e07cf78763cbf81829826dc3066909ebebc65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f974307c2297431d488e61b794e07cf78763cbf81829826dc3066909ebebc65", kill_on_drop: false }`
[INFO] [stdout] 1f974307c2297431d488e61b794e07cf78763cbf81829826dc3066909ebebc65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f546ba025f6a1c94621901344a5d4855de64f28f51bff9cc6ff571b71351d9a5
[INFO] running `Command { std: "docker" "start" "-a" "f546ba025f6a1c94621901344a5d4855de64f28f51bff9cc6ff571b71351d9a5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[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 serde v1.0.115
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling 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]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling extend v0.1.2
[INFO] [stderr]    Compiling structopt-derive v0.4.10
[INFO] [stderr]    Compiling assert-json-diff v1.1.0
[INFO] [stderr]    Compiling structopt v0.3.17
[INFO] [stderr]    Compiling 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: `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: variant is never constructed: `Nil`
[INFO] [stdout]  --> src/mismatch.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Nil,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Value`
[INFO] [stdout]  --> src/mismatch.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Value(Value, Value),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Node`
[INFO] [stdout]  --> src/mismatch.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Node(HashMap<String, JsonNode>)
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/mismatch.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn new(l: JsonNode, r: JsonNode, u: JsonNode) -> Mismatch {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `match_json`
[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: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.83s
[INFO] running `Command { std: "docker" "inspect" "f546ba025f6a1c94621901344a5d4855de64f28f51bff9cc6ff571b71351d9a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f546ba025f6a1c94621901344a5d4855de64f28f51bff9cc6ff571b71351d9a5", kill_on_drop: false }`
[INFO] [stdout] f546ba025f6a1c94621901344a5d4855de64f28f51bff9cc6ff571b71351d9a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6003a9383b64eaeeef1686e3903a0f072c872081984d3ac5f38aca2aab461520
[INFO] running `Command { std: "docker" "start" "-a" "6003a9383b64eaeeef1686e3903a0f072c872081984d3ac5f38aca2aab461520", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling 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: `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: variant is never constructed: `Nil`
[INFO] [stdout]  --> src/mismatch.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Nil,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Value`
[INFO] [stdout]  --> src/mismatch.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     Value(Value, Value),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Node`
[INFO] [stdout]  --> src/mismatch.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Node(HashMap<String, JsonNode>)
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/mismatch.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn new(l: JsonNode, r: JsonNode, u: JsonNode) -> Mismatch {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `match_json`
[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: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `Command { std: "docker" "inspect" "6003a9383b64eaeeef1686e3903a0f072c872081984d3ac5f38aca2aab461520", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6003a9383b64eaeeef1686e3903a0f072c872081984d3ac5f38aca2aab461520", kill_on_drop: false }`
[INFO] [stdout] 6003a9383b64eaeeef1686e3903a0f072c872081984d3ac5f38aca2aab461520
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2b1681e3a1a66c61207635abb356b9791d65c52cce187640ad159da640b75d13
[INFO] running `Command { std: "docker" "start" "-a" "2b1681e3a1a66c61207635abb356b9791d65c52cce187640ad159da640b75d13", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `value1`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/mismatch.rs:28:19
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 28 | pub fn match_json(value1: &Value, value2: &Value) -> Mismatch {
[INFO] [stdout] 
[INFO] [stderr]    |                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_value1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value2`
[INFO] [stderr]   --> src/mismatch.rs:28:35
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub fn match_json(value1: &Value, value2: &Value) -> Mismatch {
[INFO] [stderr]    |                                   ^^^^^^ help: if this is intentional, prefix it with an underscore: `_value2`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Nil`
[INFO] [stderr]  --> src/mismatch.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     Nil,
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Value`
[INFO] [stderr]  --> src/mismatch.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Value(Value, Value),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Node`
[INFO] [stderr]  --> src/mismatch.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Node(HashMap<String, JsonNode>)
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/mismatch.rs:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn new(l: JsonNode, r: JsonNode, u: JsonNode) -> Mismatch {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `match_json`
[INFO] [stderr]   --> src/mismatch.rs:28:8
[INFO] [stderr]    |
[INFO] [stderr] 28 | pub fn match_json(value1: &Value, value2: &Value) -> Mismatch {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `json-diff` (bin "json-diff" test) generated 7 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/json_diff-7c133652a30c991d)
[INFO] running `Command { std: "docker" "inspect" "2b1681e3a1a66c61207635abb356b9791d65c52cce187640ad159da640b75d13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b1681e3a1a66c61207635abb356b9791d65c52cce187640ad159da640b75d13", kill_on_drop: false }`
[INFO] [stdout] 2b1681e3a1a66c61207635abb356b9791d65c52cce187640ad159da640b75d13