[INFO] fetching crate warts 0.3.2...
[INFO] checking warts-0.3.2 against master#e652caa679a304af11fc04f1f12452f255a82593 for pr-98000
[INFO] extracting crate warts 0.3.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate warts 0.3.2 on toolchain e652caa679a304af11fc04f1f12452f255a82593
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e652caa679a304af11fc04f1f12452f255a82593" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate warts 0.3.2
[INFO] finished tweaking crates.io crate warts 0.3.2
[INFO] tweaked toml for crates.io crate warts 0.3.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate warts 0.3.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e652caa679a304af11fc04f1f12452f255a82593" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded deku_derive v0.12.5
[INFO] [stderr]   Downloaded deku v0.12.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+e652caa679a304af11fc04f1f12452f255a82593" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ab7aa52e58300563cb4b7afda9c0976fc417245f8433383d51f74ff72c38ce6
[INFO] running `Command { std: "docker" "start" "-a" "6ab7aa52e58300563cb4b7afda9c0976fc417245f8433383d51f74ff72c38ce6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ab7aa52e58300563cb4b7afda9c0976fc417245f8433383d51f74ff72c38ce6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ab7aa52e58300563cb4b7afda9c0976fc417245f8433383d51f74ff72c38ce6", kill_on_drop: false }`
[INFO] [stdout] 6ab7aa52e58300563cb4b7afda9c0976fc417245f8433383d51f74ff72c38ce6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:ac0d0aa6ec8ed129e241004a6179c99fa0d2616f50ba759c5b60bd26d0fafa02" "/opt/rustwide/cargo-home/bin/cargo" "+e652caa679a304af11fc04f1f12452f255a82593" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a310e5937d72105375aa41e2769606f5c679f9042deda8a334e175b3b887284
[INFO] running `Command { std: "docker" "start" "-a" "1a310e5937d72105375aa41e2769606f5c679f9042deda8a334e175b3b887284", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.38
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn v1.0.93
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking funty v1.2.0
[INFO] [stderr]     Checking wyz v0.4.0
[INFO] [stderr]     Checking bitvec v0.22.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling thiserror v1.0.31
[INFO] [stderr]    Compiling proc-macro-crate v1.1.3
[INFO] [stderr]    Compiling deku_derive v0.12.5
[INFO] [stderr]     Checking deku v0.12.5
[INFO] [stderr]     Checking warts v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/write_traceroute.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     io::stdout().write_all(Object::List(list).to_bytes().unwrap().as_slice());
[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: unused `Result` that must be used
[INFO] [stdout]   --> examples/write_traceroute.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 42 | /     io::stdout().write_all(
[INFO] [stdout] 43 | |         Object::CycleStart(cycle_start)
[INFO] [stdout] 44 | |             .to_bytes()
[INFO] [stdout] 45 | |             .unwrap()
[INFO] [stdout] 46 | |             .as_slice(),
[INFO] [stdout] 47 | |     );
[INFO] [stdout]    | |______^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> examples/write_traceroute.rs:115:5
[INFO] [stdout]     |
[INFO] [stdout] 115 | /     io::stdout().write_all(
[INFO] [stdout] 116 | |         Object::Traceroute(traceroute)
[INFO] [stdout] 117 | |             .to_bytes()
[INFO] [stdout] 118 | |             .unwrap()
[INFO] [stdout] 119 | |             .as_slice(),
[INFO] [stdout] 120 | |     );
[INFO] [stdout]     | |______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> examples/write_traceroute.rs:129:5
[INFO] [stdout]     |
[INFO] [stdout] 129 |     io::stdout().write_all(Object::CycleStop(cycle_stop).to_bytes().unwrap().as_slice());
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.31s
[INFO] running `Command { std: "docker" "inspect" "1a310e5937d72105375aa41e2769606f5c679f9042deda8a334e175b3b887284", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a310e5937d72105375aa41e2769606f5c679f9042deda8a334e175b3b887284", kill_on_drop: false }`
[INFO] [stdout] 1a310e5937d72105375aa41e2769606f5c679f9042deda8a334e175b3b887284