[INFO] cloning repository https://github.com/keorn/parity-spec
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/keorn/parity-spec" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeorn%2Fparity-spec", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeorn%2Fparity-spec'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 82cfe9f31c59ba82eae78836be945ee0da2683b8
[INFO] checking keorn/parity-spec against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkeorn%2Fparity-spec" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/keorn/parity-spec on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/keorn/parity-spec
[INFO] finished tweaking git repo https://github.com/keorn/parity-spec
[INFO] tweaked toml for git repo https://github.com/keorn/parity-spec written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/keorn/parity-spec already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v0.9.7
[INFO] [stderr]   Downloaded syn v0.11.4
[INFO] [stderr]   Downloaded serde_codegen_internals v0.13.0
[INFO] [stderr]   Downloaded serde v0.9.7
[INFO] [stderr]   Downloaded serde_json v0.9.6
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59f48fa8bfa398193f96ceddc5b5c8f200e021496737a94e52f33c1597108d4f
[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" "59f48fa8bfa398193f96ceddc5b5c8f200e021496737a94e52f33c1597108d4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59f48fa8bfa398193f96ceddc5b5c8f200e021496737a94e52f33c1597108d4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59f48fa8bfa398193f96ceddc5b5c8f200e021496737a94e52f33c1597108d4f", kill_on_drop: false }`
[INFO] [stdout] 59f48fa8bfa398193f96ceddc5b5c8f200e021496737a94e52f33c1597108d4f
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8de32d3173ec77ce6c9a444d85898b8e791d6b34e03944868e95395861756cfe
[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" "8de32d3173ec77ce6c9a444d85898b8e791d6b34e03944868e95395861756cfe", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.10
[INFO] [stderr]     Checking serde v0.9.7
[INFO] [stderr]    Compiling syn v0.11.4
[INFO] [stderr]    Compiling serde_codegen_internals v0.13.0
[INFO] [stderr]    Compiling serde_derive v0.9.7
[INFO] [stderr]     Checking serde_json v0.9.6
[INFO] [stderr]     Checking chain_spec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/main.rs:135:2
[INFO] [stdout]     |
[INFO] [stdout] 135 |     /// Ask for additional info which Geth does not include in the file.
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/main.rs:121:2
[INFO] [stdout]     |
[INFO] [stdout] 121 |     /// Read Geth chain spec.
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 122 |     let mut args = env::args();
[INFO] [stdout]     |     --------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/main.rs:185:2
[INFO] [stdout]     |
[INFO] [stdout] 185 |       /// Construct Parity chain spec.
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 186 |       let parity_ethash = ParityEthash {
[INFO] [stdout]     |  _____-
[INFO] [stdout] 187 | |         minimumDifficulty: "0x20000".into(),
[INFO] [stdout] 188 | |         difficultyBoundDivisor: "0x800".into(),
[INFO] [stdout] 189 | |         durationLimit: "0xd".into(),
[INFO] [stdout] ...   |
[INFO] [stdout] 197 | |         eip161dTransition: geth_config.eip160Block,
[INFO] [stdout] 198 | |     };
[INFO] [stdout]     | |______- rustdoc does not generate documentation for statements
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/main.rs:135:2
[INFO] [stdout]     |
[INFO] [stdout] 135 |     /// Ask for additional info which Geth does not include in the file.
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]     = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/main.rs:121:2
[INFO] [stdout]     |
[INFO] [stdout] 121 |     /// Read Geth chain spec.
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 122 |     let mut args = env::args();
[INFO] [stdout]     |     --------------------------- rustdoc does not generate documentation for statements
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/main.rs:185:2
[INFO] [stdout]     |
[INFO] [stdout] 185 |       /// Construct Parity chain spec.
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 186 |       let parity_ethash = ParityEthash {
[INFO] [stdout]     |  _____-
[INFO] [stdout] 187 | |         minimumDifficulty: "0x20000".into(),
[INFO] [stdout] 188 | |         difficultyBoundDivisor: "0x800".into(),
[INFO] [stdout] 189 | |         durationLimit: "0xd".into(),
[INFO] [stdout] ...   |
[INFO] [stdout] 197 | |         eip161dTransition: geth_config.eip160Block,
[INFO] [stdout] 198 | |     };
[INFO] [stdout]     | |______- rustdoc does not generate documentation for statements
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `eip158Block`
[INFO] [stdout]   --> src/main.rs:27:2
[INFO] [stdout]    |
[INFO] [stdout] 27 |     eip158Block: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `eip158Block`
[INFO] [stdout]   --> src/main.rs:27:2
[INFO] [stdout]    |
[INFO] [stdout] 27 |     eip158Block: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.41s
[INFO] running `Command { std: "docker" "inspect" "8de32d3173ec77ce6c9a444d85898b8e791d6b34e03944868e95395861756cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8de32d3173ec77ce6c9a444d85898b8e791d6b34e03944868e95395861756cfe", kill_on_drop: false }`
[INFO] [stdout] 8de32d3173ec77ce6c9a444d85898b8e791d6b34e03944868e95395861756cfe