[INFO] updating cached repository https://github.com/pietrovismara/rson
[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] 5bc049bd6ca234752113f9b47e99751f2bb708a3
[INFO] testing pietrovismara/rson against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpietrovismara%2Frson" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pietrovismara/rson on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/pietrovismara/rson
[INFO] finished tweaking git repo https://github.com/pietrovismara/rson
[INFO] tweaked toml for git repo https://github.com/pietrovismara/rson written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/pietrovismara/rson already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-8/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 038cac3f4dc5731e23c3dafdfb0a30d52684513b31a4823b76d8b3979259cff5
[INFO] running `"docker" "start" "-a" "038cac3f4dc5731e23c3dafdfb0a30d52684513b31a4823b76d8b3979259cff5"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling unicode-segmentation v0.1.3
[INFO] [stderr]    Compiling strsim v0.5.2
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling vec_map v0.6.0
[INFO] [stderr]    Compiling ansi_term v0.9.0
[INFO] [stderr]    Compiling term_size v0.2.3
[INFO] [stderr]    Compiling clap v2.19.3
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling rson v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:158:39
[INFO] [stderr]     |
[INFO] [stderr] 158 | fn read_stdin() -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:170:35
[INFO] [stderr]     |
[INFO] [stderr] 170 | fn pretty() -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:177:52
[INFO] [stderr]     |
[INFO] [stderr] 177 | fn pick(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:191:51
[INFO] [stderr]     |
[INFO] [stderr] 191 | fn get(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:202:54
[INFO] [stderr]     |
[INFO] [stderr] 202 | fn filter(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:229:52
[INFO] [stderr]     |
[INFO] [stderr] 229 | fn some(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:256:53
[INFO] [stderr]     |
[INFO] [stderr] 256 | fn every(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:283:52
[INFO] [stderr]     |
[INFO] [stderr] 283 | fn find(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:313:55
[INFO] [stderr]     |
[INFO] [stderr] 313 | fn length(_matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:321:110
[INFO] [stderr]     |
[INFO] [stderr] 321 | fn prepare_array_op(matches: ArgMatches, command_name: &str) -> Result<(String, String, parsers::Value), Box<Error>> {
[INFO] [stderr]     |                                                                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:330:58
[INFO] [stderr]     |
[INFO] [stderr] 330 | fn prepare_array_data() -> Result<serde_json::Value, Box<Error>> {
[INFO] [stderr]     |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:341:59
[INFO] [stderr]     |
[INFO] [stderr] 341 | fn prepare_object_data() -> Result<serde_json::Value, Box<Error>> {
[INFO] [stderr]     |                                                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:352:60
[INFO] [stderr]     |
[INFO] [stderr] 352 | fn prepare_generic_data() -> Result<serde_json::Value, Box<Error>> {
[INFO] [stderr]     |                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:377:48
[INFO] [stderr]     |
[INFO] [stderr] 377 | fn read(matches: ArgMatches) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:391:54
[INFO] [stderr]     |
[INFO] [stderr] 391 | fn read_file(filename: String) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 1m 14s
[INFO] running `"docker" "inspect" "038cac3f4dc5731e23c3dafdfb0a30d52684513b31a4823b76d8b3979259cff5"`
[INFO] running `"docker" "rm" "-f" "038cac3f4dc5731e23c3dafdfb0a30d52684513b31a4823b76d8b3979259cff5"`
[INFO] [stdout] 038cac3f4dc5731e23c3dafdfb0a30d52684513b31a4823b76d8b3979259cff5
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.44.0" "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] efe70a1d897b935ce5f46433abea162b45ff1c96349b890de793015044df7c1e
[INFO] running `"docker" "start" "-a" "efe70a1d897b935ce5f46433abea162b45ff1c96349b890de793015044df7c1e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rson v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:158:39
[INFO] [stderr]     |
[INFO] [stderr] 158 | fn read_stdin() -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:170:35
[INFO] [stderr]     |
[INFO] [stderr] 170 | fn pretty() -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:177:52
[INFO] [stderr]     |
[INFO] [stderr] 177 | fn pick(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:191:51
[INFO] [stderr]     |
[INFO] [stderr] 191 | fn get(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:202:54
[INFO] [stderr]     |
[INFO] [stderr] 202 | fn filter(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:229:52
[INFO] [stderr]     |
[INFO] [stderr] 229 | fn some(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:256:53
[INFO] [stderr]     |
[INFO] [stderr] 256 | fn every(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:283:52
[INFO] [stderr]     |
[INFO] [stderr] 283 | fn find(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:313:55
[INFO] [stderr]     |
[INFO] [stderr] 313 | fn length(_matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:321:110
[INFO] [stderr]     |
[INFO] [stderr] 321 | fn prepare_array_op(matches: ArgMatches, command_name: &str) -> Result<(String, String, parsers::Value), Box<Error>> {
[INFO] [stderr]     |                                                                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:330:58
[INFO] [stderr]     |
[INFO] [stderr] 330 | fn prepare_array_data() -> Result<serde_json::Value, Box<Error>> {
[INFO] [stderr]     |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:341:59
[INFO] [stderr]     |
[INFO] [stderr] 341 | fn prepare_object_data() -> Result<serde_json::Value, Box<Error>> {
[INFO] [stderr]     |                                                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:352:60
[INFO] [stderr]     |
[INFO] [stderr] 352 | fn prepare_generic_data() -> Result<serde_json::Value, Box<Error>> {
[INFO] [stderr]     |                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:377:48
[INFO] [stderr]     |
[INFO] [stderr] 377 | fn read(matches: ArgMatches) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:391:54
[INFO] [stderr]     |
[INFO] [stderr] 391 | fn read_file(filename: String) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [optimized + debuginfo] target(s) in 0.99s
[INFO] running `"docker" "inspect" "efe70a1d897b935ce5f46433abea162b45ff1c96349b890de793015044df7c1e"`
[INFO] running `"docker" "rm" "-f" "efe70a1d897b935ce5f46433abea162b45ff1c96349b890de793015044df7c1e"`
[INFO] [stdout] efe70a1d897b935ce5f46433abea162b45ff1c96349b890de793015044df7c1e
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.44.0" "test" "--frozen"`
[INFO] [stdout] 02c929742fb22d5925113f02e87fdda0402feb8e973b2875be6a51f19513a862
[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" "02c929742fb22d5925113f02e87fdda0402feb8e973b2875be6a51f19513a862"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:158:39
[INFO] [stderr]     |
[INFO] [stderr] 158 | fn read_stdin() -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:170:35
[INFO] [stderr]     |
[INFO] [stderr] 170 | fn pretty() -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:177:52
[INFO] [stderr]     |
[INFO] [stderr] 177 | fn pick(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:191:51
[INFO] [stderr]     |
[INFO] [stderr] 191 | fn get(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:202:54
[INFO] [stderr]     |
[INFO] [stderr] 202 | fn filter(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:229:52
[INFO] [stderr]     |
[INFO] [stderr] 229 | fn some(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:256:53
[INFO] [stderr]     |
[INFO] [stderr] 256 | fn every(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:283:52
[INFO] [stderr]     |
[INFO] [stderr] 283 | fn find(matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:313:55
[INFO] [stderr]     |
[INFO] [stderr] 313 | fn length(_matches: ArgMatches) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:321:110
[INFO] [stderr]     |
[INFO] [stderr] 321 | fn prepare_array_op(matches: ArgMatches, command_name: &str) -> Result<(String, String, parsers::Value), Box<Error>> {
[INFO] [stderr]     |                                                                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:330:58
[INFO] [stderr]     |
[INFO] [stderr] 330 | fn prepare_array_data() -> Result<serde_json::Value, Box<Error>> {
[INFO] [stderr]     |                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:341:59
[INFO] [stderr]     |
[INFO] [stderr] 341 | fn prepare_object_data() -> Result<serde_json::Value, Box<Error>> {
[INFO] [stderr]     |                                                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:352:60
[INFO] [stderr]     |
[INFO] [stderr] 352 | fn prepare_generic_data() -> Result<serde_json::Value, Box<Error>> {
[INFO] [stderr]     |                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:377:48
[INFO] [stderr]     |
[INFO] [stderr] 377 | fn read(matches: ArgMatches) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:391:54
[INFO] [stderr]     |
[INFO] [stderr] 391 | fn read_file(filename: String) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [optimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rson-c6acf75182f0fde4
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "02c929742fb22d5925113f02e87fdda0402feb8e973b2875be6a51f19513a862"`
[INFO] running `"docker" "rm" "-f" "02c929742fb22d5925113f02e87fdda0402feb8e973b2875be6a51f19513a862"`
[INFO] [stdout] 02c929742fb22d5925113f02e87fdda0402feb8e973b2875be6a51f19513a862