[INFO] cloning repository https://github.com/DanWatkins/dbfc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DanWatkins/dbfc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDanWatkins%2Fdbfc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDanWatkins%2Fdbfc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] efa8b0ea6dc19d0251c05642e03989a6995a495a
[INFO] testing DanWatkins/dbfc against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDanWatkins%2Fdbfc" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DanWatkins/dbfc on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DanWatkins/dbfc
[INFO] finished tweaking git repo https://github.com/DanWatkins/dbfc
[INFO] tweaked toml for git repo https://github.com/DanWatkins/dbfc written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/DanWatkins/dbfc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.15
[INFO] [stderr]   Downloaded serde_derive_internals v0.16.0
[INFO] [stderr]   Downloaded serde_json v1.0.3
[INFO] [stderr]   Downloaded textwrap v0.8.0
[INFO] [stderr]   Downloaded serde v1.0.15
[INFO] [stderr]   Downloaded num-traits v0.1.40
[INFO] [stderr]   Downloaded typenum v1.9.0
[INFO] [stderr]   Downloaded nodrop v0.1.9
[INFO] [stderr]   Downloaded odds v0.2.25
[INFO] [stderr]   Downloaded clap v2.26.2
[INFO] running `Command { std: "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" "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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 916ac861acd9353974a51a567523f37b7de3eece264cc6a8e4c02eebb63df471
[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" "916ac861acd9353974a51a567523f37b7de3eece264cc6a8e4c02eebb63df471", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "916ac861acd9353974a51a567523f37b7de3eece264cc6a8e4c02eebb63df471", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "916ac861acd9353974a51a567523f37b7de3eece264cc6a8e4c02eebb63df471", kill_on_drop: false }`
[INFO] [stdout] 916ac861acd9353974a51a567523f37b7de3eece264cc6a8e4c02eebb63df471
[INFO] running `Command { std: "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" "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" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e306a35a76d1c2211e874184dc77f7a130c57108cc62d01b666461a440d11532
[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" "e306a35a76d1c2211e874184dc77f7a130c57108cc62d01b666461a440d11532", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.9.0
[INFO] [stderr]    Compiling odds v0.2.25
[INFO] [stderr]    Compiling libc v0.2.31
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling num-traits v0.1.40
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling serde v1.0.15
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling nodrop v0.1.9
[INFO] [stderr]    Compiling term_size v0.3.0
[INFO] [stderr]    Compiling atty v0.2.2
[INFO] [stderr]    Compiling textwrap v0.8.0
[INFO] [stderr]    Compiling clap v2.26.2
[INFO] [stderr]    Compiling generic-array v0.8.3
[INFO] [stderr]    Compiling serde_derive_internals v0.16.0
[INFO] [stderr]    Compiling block-buffer v0.2.0
[INFO] [stderr]    Compiling digest v0.6.2
[INFO] [stderr]    Compiling sha2 v0.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.15
[INFO] [stderr]    Compiling serde_json v1.0.3
[INFO] [stderr]    Compiling dbfc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/batch_job.rs:95:46
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn init(&mut self) -> Result<(), Box<Error>> {
[INFO] [stdout]    |                                              ^^^^^ help: use `dyn`: `dyn 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/batch_job.rs:140:50
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn save_to_file(&self) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/batch_job.rs:150:74
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn load_from_file(dir: &str, name: &str) -> Result<BatchJob, Box<Error>> {
[INFO] [stdout]     |                                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/batch_job.rs:286:47
[INFO] [stdout]     |
[INFO] [stdout] 286 |     fn visit_dirs(&self, dir: &Path, cb: &mut FnMut(&DirEntry)) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&DirEntry)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/batch_job.rs:286:83
[INFO] [stdout]     |
[INFO] [stdout] 286 |     fn visit_dirs(&self, dir: &Path, cb: &mut FnMut(&DirEntry)) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/batch_job.rs:302:60
[INFO] [stdout]     |
[INFO] [stdout] 302 |     fn write_log_text(&self, text: &str) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:107:58
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn run(arg_matches: &clap::ArgMatches) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/batch_job.rs:190:21
[INFO] [stdout]     |
[INFO] [stdout] 190 |                     self.write_log_text(&why);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.98s
[INFO] running `Command { std: "docker" "inspect" "e306a35a76d1c2211e874184dc77f7a130c57108cc62d01b666461a440d11532", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e306a35a76d1c2211e874184dc77f7a130c57108cc62d01b666461a440d11532", kill_on_drop: false }`
[INFO] [stdout] e306a35a76d1c2211e874184dc77f7a130c57108cc62d01b666461a440d11532
[INFO] running `Command { std: "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" "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" "+1.47.0" "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] a6ffbc52eea4193d13145a448b41ae7fef4a6e6754fc5178afec090db39bd44e
[INFO] running `Command { std: "docker" "start" "-a" "a6ffbc52eea4193d13145a448b41ae7fef4a6e6754fc5178afec090db39bd44e", kill_on_drop: false }`
[INFO] [stderr]    Compiling dbfc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/batch_job.rs:95:46
[INFO] [stdout]    |
[INFO] [stdout] 95 |     pub fn init(&mut self) -> Result<(), Box<Error>> {
[INFO] [stdout]    |                                              ^^^^^ help: use `dyn`: `dyn 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/batch_job.rs:140:50
[INFO] [stdout]     |
[INFO] [stdout] 140 |     pub fn save_to_file(&self) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                                  ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/batch_job.rs:150:74
[INFO] [stdout]     |
[INFO] [stdout] 150 |     pub fn load_from_file(dir: &str, name: &str) -> Result<BatchJob, Box<Error>> {
[INFO] [stdout]     |                                                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/batch_job.rs:286:47
[INFO] [stdout]     |
[INFO] [stdout] 286 |     fn visit_dirs(&self, dir: &Path, cb: &mut FnMut(&DirEntry)) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&DirEntry)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/batch_job.rs:286:83
[INFO] [stdout]     |
[INFO] [stdout] 286 |     fn visit_dirs(&self, dir: &Path, cb: &mut FnMut(&DirEntry)) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/batch_job.rs:302:60
[INFO] [stdout]     |
[INFO] [stdout] 302 |     fn write_log_text(&self, text: &str) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:107:58
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn run(arg_matches: &clap::ArgMatches) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                          ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/batch_job.rs:190:21
[INFO] [stdout]     |
[INFO] [stdout] 190 |                     self.write_log_text(&why);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `Command { std: "docker" "inspect" "a6ffbc52eea4193d13145a448b41ae7fef4a6e6754fc5178afec090db39bd44e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6ffbc52eea4193d13145a448b41ae7fef4a6e6754fc5178afec090db39bd44e", kill_on_drop: false }`
[INFO] [stdout] a6ffbc52eea4193d13145a448b41ae7fef4a6e6754fc5178afec090db39bd44e
[INFO] running `Command { std: "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" "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" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3784cff4730e0eb617fa29766dd4f80bc875a0abda33971fe2c18e8f9376f54a
[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" "3784cff4730e0eb617fa29766dd4f80bc875a0abda33971fe2c18e8f9376f54a", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/batch_job.rs:95:46
[INFO] [stderr]    |
[INFO] [stderr] 95 |     pub fn init(&mut self) -> Result<(), 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/batch_job.rs:140:50
[INFO] [stderr]     |
[INFO] [stderr] 140 |     pub fn save_to_file(&self) -> 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/batch_job.rs:150:74
[INFO] [stderr]     |
[INFO] [stderr] 150 |     pub fn load_from_file(dir: &str, name: &str) -> Result<BatchJob, 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/batch_job.rs:286:47
[INFO] [stderr]     |
[INFO] [stderr] 286 |     fn visit_dirs(&self, dir: &Path, cb: &mut FnMut(&DirEntry)) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                               ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&DirEntry)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/batch_job.rs:286:83
[INFO] [stderr]     |
[INFO] [stderr] 286 |     fn visit_dirs(&self, dir: &Path, cb: &mut FnMut(&DirEntry)) -> 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/batch_job.rs:302:60
[INFO] [stderr]     |
[INFO] [stderr] 302 |     fn write_log_text(&self, text: &str) -> 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:107:58
[INFO] [stderr]     |
[INFO] [stderr] 107 | fn run(arg_matches: &clap::ArgMatches) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                                                          ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/batch_job.rs:190:21
[INFO] [stderr]     |
[INFO] [stderr] 190 |                     self.write_log_text(&why);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dbfc-1dab7a1e1da29618
[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" "3784cff4730e0eb617fa29766dd4f80bc875a0abda33971fe2c18e8f9376f54a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3784cff4730e0eb617fa29766dd4f80bc875a0abda33971fe2c18e8f9376f54a", kill_on_drop: false }`
[INFO] [stdout] 3784cff4730e0eb617fa29766dd4f80bc875a0abda33971fe2c18e8f9376f54a
