[INFO] cloning repository https://github.com/felipesere/jsondiffers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/felipesere/jsondiffers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffelipesere%2Fjsondiffers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffelipesere%2Fjsondiffers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f18a55ac78b88b64ab7bd70c611d45d0351a0328
[INFO] testing felipesere/jsondiffers against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffelipesere%2Fjsondiffers" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/felipesere/jsondiffers on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/felipesere/jsondiffers
[INFO] finished tweaking git repo https://github.com/felipesere/jsondiffers
[INFO] tweaked toml for git repo https://github.com/felipesere/jsondiffers written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/felipesere/jsondiffers already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0933c1354243bfdbeea0b21fee9c7a6e6026119a133bce8a5d02e33b22ec7733
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0933c1354243bfdbeea0b21fee9c7a6e6026119a133bce8a5d02e33b22ec7733", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0933c1354243bfdbeea0b21fee9c7a6e6026119a133bce8a5d02e33b22ec7733", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0933c1354243bfdbeea0b21fee9c7a6e6026119a133bce8a5d02e33b22ec7733", kill_on_drop: false }`
[INFO] [stdout] 0933c1354243bfdbeea0b21fee9c7a6e6026119a133bce8a5d02e33b22ec7733
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e30f1bd771a2ff2b13f273baf6b4555a0c5b7948c8b202d7bb7ccc05d2ac471
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7e30f1bd771a2ff2b13f273baf6b4555a0c5b7948c8b202d7bb7ccc05d2ac471", kill_on_drop: false }`
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling jsondiffers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `stringify`
[INFO] [stdout]  --> src/printer.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn stringify(val: Value) -> String {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print`
[INFO] [stdout]   --> src/printer.rs:10:4
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn print(output: &mut String, value: Value) {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_object`
[INFO] [stdout]   --> src/printer.rs:21:4
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn print_object(output: &mut String, object: Map<String, Value>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_array`
[INFO] [stdout]   --> src/printer.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn print_array(output: &mut String, values: Vec<Value>) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `string`
[INFO] [stdout]   --> src/printer.rs:48:4
[INFO] [stdout]    |
[INFO] [stdout] 48 | fn string(output: &mut String, value: &str) {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.73s
[INFO] running `Command { std: "docker" "inspect" "7e30f1bd771a2ff2b13f273baf6b4555a0c5b7948c8b202d7bb7ccc05d2ac471", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e30f1bd771a2ff2b13f273baf6b4555a0c5b7948c8b202d7bb7ccc05d2ac471", kill_on_drop: false }`
[INFO] [stdout] 7e30f1bd771a2ff2b13f273baf6b4555a0c5b7948c8b202d7bb7ccc05d2ac471
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1f9b1cf12fc4a48601f9ca83471163e225b3e8f2008d5108afb18ac2ded56262
[INFO] running `Command { std: "docker" "start" "-a" "1f9b1cf12fc4a48601f9ca83471163e225b3e8f2008d5108afb18ac2ded56262", kill_on_drop: false }`
[INFO] [stderr]    Compiling jsondiffers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `Command { std: "docker" "inspect" "1f9b1cf12fc4a48601f9ca83471163e225b3e8f2008d5108afb18ac2ded56262", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f9b1cf12fc4a48601f9ca83471163e225b3e8f2008d5108afb18ac2ded56262", kill_on_drop: false }`
[INFO] [stdout] 1f9b1cf12fc4a48601f9ca83471163e225b3e8f2008d5108afb18ac2ded56262
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 08c0fa77037dc22ad07fe40a87dcc53d6c77adaa9d66ec37e79b68402f96bf60
[INFO] running `Command { std: "docker" "start" "-a" "08c0fa77037dc22ad07fe40a87dcc53d6c77adaa9d66ec37e79b68402f96bf60", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 18 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/jsondiffers-97484a3d127aaec3)
[INFO] [stdout] test diff::tests::array_with_missing_value ... ok
[INFO] [stdout] test diff::tests::array_with_surplus_value ... ok
[INFO] [stdout] test diff::tests::difference_between_numbers ... ok
[INFO] [stdout] test diff::tests::object_with_value_compared_with_null ... ok
[INFO] [stdout] test diff::tests::null_is_not_different_from_itself ... ok
[INFO] [stdout] test diff::tests::second_object_has_missing_elements ... ok
[INFO] [stdout] test printer::tests::prints_a_boolean ... ok
[INFO] [stdout] test diff::tests::object_with_different_string_values ... ok
[INFO] [stdout] test printer::tests::prints_an_array ... ok
[INFO] [stdout] test diff::tests::second_object_has_surplus_elements ... ok
[INFO] [stdout] test printer::tests::prints_an_object ... ok
[INFO] [stdout] test printer::tests::complex_object ... ok
[INFO] [stdout] test printer::tests::prints_object_with_key_value_pair ... ok
[INFO] [stdout] test diff::tests::same_boolean_value ... ok
[INFO] [stdout] test diff::tests::difference_between_booleans ... ok
[INFO] [stdout] test printer::tests::prints_a_number ... ok
[INFO] [stdout] test printer::tests::prints_a_string ... ok
[INFO] [stdout] test printer::tests::prints_null ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "08c0fa77037dc22ad07fe40a87dcc53d6c77adaa9d66ec37e79b68402f96bf60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08c0fa77037dc22ad07fe40a87dcc53d6c77adaa9d66ec37e79b68402f96bf60", kill_on_drop: false }`
[INFO] [stdout] 08c0fa77037dc22ad07fe40a87dcc53d6c77adaa9d66ec37e79b68402f96bf60