[INFO] fetching crate test-fuzz-internal 0.1.0...
[INFO] testing test-fuzz-internal-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate test-fuzz-internal 0.1.0 into /workspace/builds/worker-113/source
[INFO] validating manifest of crates.io crate test-fuzz-internal 0.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate test-fuzz-internal 0.1.0
[INFO] finished tweaking crates.io crate test-fuzz-internal 0.1.0
[INFO] tweaked toml for crates.io crate test-fuzz-internal 0.1.0 written to /workspace/builds/worker-113/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2aa6e35d258b8342ed1429e45658b9f77733cc13e43071d493e81a2ababc2abb
[INFO] running `Command { std: "docker" "start" "-a" "2aa6e35d258b8342ed1429e45658b9f77733cc13e43071d493e81a2ababc2abb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2aa6e35d258b8342ed1429e45658b9f77733cc13e43071d493e81a2ababc2abb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2aa6e35d258b8342ed1429e45658b9f77733cc13e43071d493e81a2ababc2abb", kill_on_drop: false }`
[INFO] [stdout] 2aa6e35d258b8342ed1429e45658b9f77733cc13e43071d493e81a2ababc2abb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5a8aa01571ba121e404c940ab58f9398c05e8699154863dabf7dcb7ccbdd5cb
[INFO] running `Command { std: "docker" "start" "-a" "d5a8aa01571ba121e404c940ab58f9398c05e8699154863dabf7dcb7ccbdd5cb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling camino v1.0.5
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling predicates-core v1.0.2
[INFO] [stderr]    Compiling treeline v0.1.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling difflib v0.4.0
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling if_chain v1.0.2
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling predicates-tree v1.0.3
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling subprocess v0.2.7
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling predicates v2.0.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling assert_cmd v2.0.1
[INFO] [stderr]    Compiling retry v1.3.0
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]    Compiling cargo-platform v0.1.2
[INFO] [stderr]    Compiling cargo_metadata v0.14.0
[INFO] [stderr]    Compiling test-fuzz-internal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable definition
[INFO] [stdout]   --> src/examples.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |         &("test-fuzz/".to_owned() + crate::serde_format().as_feature()),
[INFO] [stdout]    |                                     --------------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 27 |     let exec = Exec::cmd("cargo")
[INFO] [stdout]    |         ^^^^ unreachable definition
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] note: this expression has type `SerdeFormat`, which is uninhabited
[INFO] [stdout]   --> src/examples.rs:22:37
[INFO] [stdout]    |
[INFO] [stdout] 22 |         &("test-fuzz/".to_owned() + crate::serde_format().as_feature()),
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metadata`
[INFO] [stdout]   --> src/examples.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let metadata = MetadataCommand::new().exec()?;
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metadata`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/examples.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let args = [
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `krate`
[INFO] [stdout]   --> src/examples.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn test(krate: &str, test: &str) -> Result<Command> {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_krate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `test`
[INFO] [stdout]   --> src/examples.rs:11:26
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn test(krate: &str, test: &str) -> Result<Command> {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/examples.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         &("test-fuzz/".to_owned() + crate::serde_format().as_feature()),
[INFO] [stdout]    |                                     --------------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 95 |         target,
[INFO] [stdout]    |         ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout] note: this expression has type `SerdeFormat`, which is uninhabited
[INFO] [stdout]   --> src/examples.rs:92:37
[INFO] [stdout]    |
[INFO] [stdout] 92 |         &("test-fuzz/".to_owned() + crate::serde_format().as_feature()),
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]   --> src/examples.rs:84:18
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub fn test_fuzz(target: &str) -> Result<Command> {
[INFO] [stdout]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.07s
[INFO] running `Command { std: "docker" "inspect" "d5a8aa01571ba121e404c940ab58f9398c05e8699154863dabf7dcb7ccbdd5cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5a8aa01571ba121e404c940ab58f9398c05e8699154863dabf7dcb7ccbdd5cb", kill_on_drop: false }`
[INFO] [stdout] d5a8aa01571ba121e404c940ab58f9398c05e8699154863dabf7dcb7ccbdd5cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a230d45a6f9e7b2ba94164649181bfdc1b60f25b752968658703cac4224ab500
[INFO] running `Command { std: "docker" "start" "-a" "a230d45a6f9e7b2ba94164649181bfdc1b60f25b752968658703cac4224ab500", kill_on_drop: false }`
[INFO] [stdout] warning: unreachable definition
[INFO] [stdout]   --> src/examples.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |         &("test-fuzz/".to_owned() + crate::serde_format().as_feature()),
[INFO] [stdout]    |                                     --------------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 27 |     let exec = Exec::cmd("cargo")
[INFO] [stdout]    |         ^^^^ unreachable definition
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] note: this expression has type `SerdeFormat`, which is uninhabited
[INFO] [stdout]   --> src/examples.rs:22:37
[INFO] [stdout]    |
[INFO] [stdout] 22 |         &("test-fuzz/".to_owned() + crate::serde_format().as_feature()),
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metadata`
[INFO] [stdout]   --> src/examples.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let metadata = MetadataCommand::new().exec()?;
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metadata`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/examples.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let args = [
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `krate`
[INFO] [stdout]   --> src/examples.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn test(krate: &str, test: &str) -> Result<Command> {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_krate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `test`
[INFO] [stdout]   --> src/examples.rs:11:26
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn test(krate: &str, test: &str) -> Result<Command> {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/examples.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         &("test-fuzz/".to_owned() + crate::serde_format().as_feature()),
[INFO] [stdout]    |                                     --------------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 95 |         target,
[INFO] [stdout]    |         ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout] note: this expression has type `SerdeFormat`, which is uninhabited
[INFO] [stdout]   --> src/examples.rs:92:37
[INFO] [stdout]    |
[INFO] [stdout] 92 |         &("test-fuzz/".to_owned() + crate::serde_format().as_feature()),
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling test-fuzz-internal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]   --> src/examples.rs:84:18
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub fn test_fuzz(target: &str) -> Result<Command> {
[INFO] [stdout]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable definition
[INFO] [stdout]   --> src/examples.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |         &("test-fuzz/".to_owned() + crate::serde_format().as_feature()),
[INFO] [stdout]    |                                     --------------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 27 |     let exec = Exec::cmd("cargo")
[INFO] [stdout]    |         ^^^^ unreachable definition
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] note: this expression has type `SerdeFormat`, which is uninhabited
[INFO] [stdout]   --> src/examples.rs:22:37
[INFO] [stdout]    |
[INFO] [stdout] 22 |         &("test-fuzz/".to_owned() + crate::serde_format().as_feature()),
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `metadata`
[INFO] [stdout]   --> src/examples.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let metadata = MetadataCommand::new().exec()?;
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metadata`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/examples.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let args = [
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `krate`
[INFO] [stdout]   --> src/examples.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn test(krate: &str, test: &str) -> Result<Command> {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_krate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `test`
[INFO] [stdout]   --> src/examples.rs:11:26
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub fn test(krate: &str, test: &str) -> Result<Command> {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_test`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/examples.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 92 |         &("test-fuzz/".to_owned() + crate::serde_format().as_feature()),
[INFO] [stdout]    |                                     --------------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 95 |         target,
[INFO] [stdout]    |         ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout] note: this expression has type `SerdeFormat`, which is uninhabited
[INFO] [stdout]   --> src/examples.rs:92:37
[INFO] [stdout]    |
[INFO] [stdout] 92 |         &("test-fuzz/".to_owned() + crate::serde_format().as_feature()),
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target`
[INFO] [stdout]   --> src/examples.rs:84:18
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub fn test_fuzz(target: &str) -> Result<Command> {
[INFO] [stdout]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "a230d45a6f9e7b2ba94164649181bfdc1b60f25b752968658703cac4224ab500", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a230d45a6f9e7b2ba94164649181bfdc1b60f25b752968658703cac4224ab500", kill_on_drop: false }`
[INFO] [stdout] a230d45a6f9e7b2ba94164649181bfdc1b60f25b752968658703cac4224ab500
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f3fc508443fc728a0ab784346d9eab7554a479852f812137275d7c576c25543b
[INFO] running `Command { std: "docker" "start" "-a" "f3fc508443fc728a0ab784346d9eab7554a479852f812137275d7c576c25543b", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable definition
[INFO] [stderr]   --> src/examples.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 22 |         &("test-fuzz/".to_owned() + crate::serde_format().as_feature()),
[INFO] [stderr]    |                                     --------------------- any code following this expression is unreachable
[INFO] [stderr] ...
[INFO] [stderr] 27 |     let exec = Exec::cmd("cargo")
[INFO] [stderr]    |         ^^^^ unreachable definition
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] note: this expression has type `SerdeFormat`, which is uninhabited
[INFO] [stderr]   --> src/examples.rs:22:37
[INFO] [stderr]    |
[INFO] [stderr] 22 |         &("test-fuzz/".to_owned() + crate::serde_format().as_feature()),
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `metadata`
[INFO] [stderr]   --> src/examples.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let metadata = MetadataCommand::new().exec()?;
[INFO] [stderr]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_metadata`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `args`
[INFO] [stderr]   --> src/examples.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     let args = [
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `krate`
[INFO] [stderr]   --> src/examples.rs:11:13
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn test(krate: &str, test: &str) -> Result<Command> {
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_krate`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `test`
[INFO] [stderr]   --> src/examples.rs:11:26
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub fn test(krate: &str, test: &str) -> Result<Command> {
[INFO] [stderr]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_test`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/examples.rs:95:9
[INFO] [stderr]    |
[INFO] [stderr] 92 |         &("test-fuzz/".to_owned() + crate::serde_format().as_feature()),
[INFO] [stderr]    |                                     --------------------- any code following this expression is unreachable
[INFO] [stderr] ...
[INFO] [stderr] 95 |         target,
[INFO] [stderr]    |         ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr] note: this expression has type `SerdeFormat`, which is uninhabited
[INFO] [stderr]   --> src/examples.rs:92:37
[INFO] [stderr]    |
[INFO] [stderr] 92 |         &("test-fuzz/".to_owned() + crate::serde_format().as_feature()),
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `target`
[INFO] [stderr]   --> src/examples.rs:84:18
[INFO] [stderr]    |
[INFO] [stderr] 84 | pub fn test_fuzz(target: &str) -> Result<Command> {
[INFO] [stderr]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_target`
[INFO] [stderr] 
[INFO] [stderr] warning: `test-fuzz-internal` (lib) generated 7 warnings
[INFO] [stderr] warning: `test-fuzz-internal` (lib test) generated 7 warnings (7 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/test_fuzz_internal-a0c0d8e7bdfa2665)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests test-fuzz-internal
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f3fc508443fc728a0ab784346d9eab7554a479852f812137275d7c576c25543b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3fc508443fc728a0ab784346d9eab7554a479852f812137275d7c576c25543b", kill_on_drop: false }`
[INFO] [stdout] f3fc508443fc728a0ab784346d9eab7554a479852f812137275d7c576c25543b