[INFO] fetching crate test-fuzz-internal 0.1.0...
[INFO] checking test-fuzz-internal-0.1.0 against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] extracting crate test-fuzz-internal 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate test-fuzz-internal 0.1.0 on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "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-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a1a5bde8b55c3d2238e803737efb16ef0cf14d8afc577ed2532bb7543661a88
[INFO] running `Command { std: "docker" "start" "-a" "2a1a5bde8b55c3d2238e803737efb16ef0cf14d8afc577ed2532bb7543661a88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a1a5bde8b55c3d2238e803737efb16ef0cf14d8afc577ed2532bb7543661a88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a1a5bde8b55c3d2238e803737efb16ef0cf14d8afc577ed2532bb7543661a88", kill_on_drop: false }`
[INFO] [stdout] 2a1a5bde8b55c3d2238e803737efb16ef0cf14d8afc577ed2532bb7543661a88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2e00144d7c49930e182fe852ddd9d4133bed34b96336b4d861a8ba23b1fa7b3
[INFO] running `Command { std: "docker" "start" "-a" "d2e00144d7c49930e182fe852ddd9d4133bed34b96336b4d861a8ba23b1fa7b3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling serde_derive v1.0.129
[INFO] [stderr]    Compiling serde v1.0.129
[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 serde_json v1.0.66
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling camino v1.0.5
[INFO] [stderr]     Checking predicates-core v1.0.2
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking if_chain v1.0.2
[INFO] [stderr]     Checking predicates-tree v1.0.3
[INFO] [stderr]     Checking predicates v2.0.2
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking subprocess v0.2.7
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking assert_cmd v2.0.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking retry v1.3.0
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]     Checking cargo-platform v0.1.2
[INFO] [stderr]     Checking cargo_metadata v0.14.0
[INFO] [stderr]     Checking 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] [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 34.18s
[INFO] running `Command { std: "docker" "inspect" "d2e00144d7c49930e182fe852ddd9d4133bed34b96336b4d861a8ba23b1fa7b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2e00144d7c49930e182fe852ddd9d4133bed34b96336b4d861a8ba23b1fa7b3", kill_on_drop: false }`
[INFO] [stdout] d2e00144d7c49930e182fe852ddd9d4133bed34b96336b4d861a8ba23b1fa7b3