[INFO] fetching crate erabu 0.1.1...
[INFO] testing erabu-0.1.1 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate erabu 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate erabu 0.1.1 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate erabu 0.1.1
[INFO] finished tweaking crates.io crate erabu 0.1.1
[INFO] tweaked toml for crates.io crate erabu 0.1.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", 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] a95a3c0bb4619d7205e2bcf60f922e1906bb478befacf4c8c08e54dbd71f2472
[INFO] running `Command { std: "docker" "start" "-a" "a95a3c0bb4619d7205e2bcf60f922e1906bb478befacf4c8c08e54dbd71f2472", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a95a3c0bb4619d7205e2bcf60f922e1906bb478befacf4c8c08e54dbd71f2472", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a95a3c0bb4619d7205e2bcf60f922e1906bb478befacf4c8c08e54dbd71f2472", kill_on_drop: false }`
[INFO] [stdout] a95a3c0bb4619d7205e2bcf60f922e1906bb478befacf4c8c08e54dbd71f2472
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--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] c191ef2ca4f899aa3566429b9accea88c59b3248f80f80198affc7a255114b0a
[INFO] running `Command { std: "docker" "start" "-a" "c191ef2ca4f899aa3566429b9accea88c59b3248f80f80198affc7a255114b0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling erabu v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/subcommands/add.rs:5:81
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn add_items(collection_name: String, items: Vec<String>) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]   |                                                                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/subcommands/del.rs:5:81
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn del_items(collection_name: String, items: Vec<String>) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]   |                                                                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/subcommands/pick.rs:3:61
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn pick_item(collection_name: String) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/subcommands/list.rs:5:62
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn list_items(collection_name: String) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]   |                                                              ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/subcommands/list.rs:12:45
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn list_collections() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/collection.rs:15:45
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn collection_file() -> Result<PathBuf, Box<std::error::Error>> {
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/collection.rs:26:53
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn get_collections() -> Result<Vec<String>, Box<std::error::Error>> {
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/collection.rs:40:57
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn new(name: &String) -> Result<Collection, Box<std::error::Error>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/collection.rs:95:46
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn save(&mut self) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:38:29
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.89s
[INFO] running `Command { std: "docker" "inspect" "c191ef2ca4f899aa3566429b9accea88c59b3248f80f80198affc7a255114b0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c191ef2ca4f899aa3566429b9accea88c59b3248f80f80198affc7a255114b0a", kill_on_drop: false }`
[INFO] [stdout] c191ef2ca4f899aa3566429b9accea88c59b3248f80f80198affc7a255114b0a
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b626eb57a99f63cf3d62fb2c536053a353bb0c258b11097f9d8137cd94cafcf4
[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" "b626eb57a99f63cf3d62fb2c536053a353bb0c258b11097f9d8137cd94cafcf4", kill_on_drop: false }`
[INFO] [stderr]    Compiling erabu v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/subcommands/add.rs:5:81
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn add_items(collection_name: String, items: Vec<String>) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]   |                                                                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/subcommands/del.rs:5:81
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn del_items(collection_name: String, items: Vec<String>) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]   |                                                                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/subcommands/pick.rs:3:61
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn pick_item(collection_name: String) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/subcommands/list.rs:5:62
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn list_items(collection_name: String) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]   |                                                              ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/subcommands/list.rs:12:45
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn list_collections() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/collection.rs:15:45
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn collection_file() -> Result<PathBuf, Box<std::error::Error>> {
[INFO] [stdout]    |                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/collection.rs:26:53
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn get_collections() -> Result<Vec<String>, Box<std::error::Error>> {
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/collection.rs:40:57
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn new(name: &String) -> Result<Collection, Box<std::error::Error>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/collection.rs:95:46
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn save(&mut self) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:38:29
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "b626eb57a99f63cf3d62fb2c536053a353bb0c258b11097f9d8137cd94cafcf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b626eb57a99f63cf3d62fb2c536053a353bb0c258b11097f9d8137cd94cafcf4", kill_on_drop: false }`
[INFO] [stdout] b626eb57a99f63cf3d62fb2c536053a353bb0c258b11097f9d8137cd94cafcf4
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e48b37fbf32664b6c1fec37eee273a6018ca9edea70e65abb6641c46f7a944b3
[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" "e48b37fbf32664b6c1fec37eee273a6018ca9edea70e65abb6641c46f7a944b3", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/subcommands/add.rs:5:81
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn add_items(collection_name: String, items: Vec<String>) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]   |                                                                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::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/subcommands/del.rs:5:81
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn del_items(collection_name: String, items: Vec<String>) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]   |                                                                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/subcommands/pick.rs:3:61
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn pick_item(collection_name: String) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]   |                                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/subcommands/list.rs:5:62
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn list_items(collection_name: String) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]   |                                                              ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/subcommands/list.rs:12:45
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn list_collections() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/collection.rs:15:45
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn collection_file() -> Result<PathBuf, Box<std::error::Error>> {
[INFO] [stderr]    |                                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/collection.rs:26:53
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub fn get_collections() -> Result<Vec<String>, Box<std::error::Error>> {
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/collection.rs:40:57
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn new(name: &String) -> Result<Collection, Box<std::error::Error>> {
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/collection.rs:95:46
[INFO] [stderr]    |
[INFO] [stderr] 95 |     pub fn save(&mut self) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:38:29
[INFO] [stderr]    |
[INFO] [stderr] 38 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/erabu-e904b2a7594af93d
[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 `Command { std: "docker" "inspect" "e48b37fbf32664b6c1fec37eee273a6018ca9edea70e65abb6641c46f7a944b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e48b37fbf32664b6c1fec37eee273a6018ca9edea70e65abb6641c46f7a944b3", kill_on_drop: false }`
[INFO] [stdout] e48b37fbf32664b6c1fec37eee273a6018ca9edea70e65abb6641c46f7a944b3
