[INFO] updating cached repository https://github.com/felipesere/jsondiffers
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f18a55ac78b88b64ab7bd70c611d45d0351a0328
[INFO] testing felipesere/jsondiffers against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffelipesere%2Fjsondiffers" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/felipesere/jsondiffers on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-6/source/Cargo.toml
[INFO] crate git repo https://github.com/felipesere/jsondiffers already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stdout] bc841acf39e1687faa0e0ed1c45cb12c7ec24d90cb900e8f46b732895c3ad45f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "bc841acf39e1687faa0e0ed1c45cb12c7ec24d90cb900e8f46b732895c3ad45f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling jsondiffers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `stringify`
[INFO] [stderr]  --> src/printer.rs:3:4
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn stringify(val: Value) -> String {
[INFO] [stderr]   |    ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print`
[INFO] [stderr]   --> src/printer.rs:10:4
[INFO] [stderr]    |
[INFO] [stderr] 10 | fn print(output: &mut String, value: Value) {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_object`
[INFO] [stderr]   --> src/printer.rs:21:4
[INFO] [stderr]    |
[INFO] [stderr] 21 | fn print_object(output: &mut String, object: Map<String, Value>) {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_array`
[INFO] [stderr]   --> src/printer.rs:31:4
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn print_array(output: &mut String, values: Vec<Value>) {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `string`
[INFO] [stderr]   --> src/printer.rs:48:4
[INFO] [stderr]    |
[INFO] [stderr] 48 | fn string(output: &mut String, value: &str) {
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.61s
[INFO] running `"docker" "inspect" "bc841acf39e1687faa0e0ed1c45cb12c7ec24d90cb900e8f46b732895c3ad45f"`
[INFO] running `"docker" "rm" "-f" "bc841acf39e1687faa0e0ed1c45cb12c7ec24d90cb900e8f46b732895c3ad45f"`
[INFO] [stdout] bc841acf39e1687faa0e0ed1c45cb12c7ec24d90cb900e8f46b732895c3ad45f
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 444fa747497b96d77f2b4d3a1abbfef29f0c7fe6edb6b4144cdff3082bf60b2c
[INFO] running `"docker" "start" "-a" "444fa747497b96d77f2b4d3a1abbfef29f0c7fe6edb6b4144cdff3082bf60b2c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling jsondiffers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.92s
[INFO] running `"docker" "inspect" "444fa747497b96d77f2b4d3a1abbfef29f0c7fe6edb6b4144cdff3082bf60b2c"`
[INFO] running `"docker" "rm" "-f" "444fa747497b96d77f2b4d3a1abbfef29f0c7fe6edb6b4144cdff3082bf60b2c"`
[INFO] [stdout] 444fa747497b96d77f2b4d3a1abbfef29f0c7fe6edb6b4144cdff3082bf60b2c
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 063ff3b977c13a0f38fd21e1bba09bbd17262257eac3cdd267d83012c421338e
[INFO] running `"docker" "start" "-a" "063ff3b977c13a0f38fd21e1bba09bbd17262257eac3cdd267d83012c421338e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/jsondiffers-9ecf2c6493fff0be
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test diff::tests::array_with_surplus_value ... ok
[INFO] [stdout] test diff::tests::array_with_missing_value ... ok
[INFO] [stdout] test diff::tests::difference_between_numbers ... ok
[INFO] [stdout] test diff::tests::difference_between_booleans ... 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::object_with_different_string_values ... ok
[INFO] [stdout] test diff::tests::same_boolean_value ... ok
[INFO] [stdout] test diff::tests::second_object_has_surplus_elements ... ok
[INFO] [stdout] test diff::tests::second_object_has_missing_elements ... ok
[INFO] [stdout] test printer::tests::prints_a_boolean ... ok
[INFO] [stdout] test printer::tests::prints_a_number ... ok
[INFO] [stdout] test printer::tests::complex_object ... ok
[INFO] [stdout] test printer::tests::prints_null ... ok
[INFO] [stdout] test printer::tests::prints_a_string ... ok
[INFO] [stdout] test printer::tests::prints_object_with_key_value_pair ... ok
[INFO] [stdout] test printer::tests::prints_an_object ... ok
[INFO] [stdout] test printer::tests::prints_an_array ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "063ff3b977c13a0f38fd21e1bba09bbd17262257eac3cdd267d83012c421338e"`
[INFO] running `"docker" "rm" "-f" "063ff3b977c13a0f38fd21e1bba09bbd17262257eac3cdd267d83012c421338e"`
[INFO] [stdout] 063ff3b977c13a0f38fd21e1bba09bbd17262257eac3cdd267d83012c421338e