[INFO] fetching crate warts 0.4.0...
[INFO] checking warts-0.4.0 against 1.95.0 for pr-155915
[INFO] extracting crate warts 0.4.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate warts 0.4.0
[INFO] finished tweaking crates.io crate warts 0.4.0
[INFO] tweaked toml for crates.io crate warts 0.4.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate warts 0.4.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate warts 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded toml_datetime v0.6.1
[INFO] [stderr]   Downloaded deku_derive v0.16.0
[INFO] [stderr]   Downloaded darling_core v0.14.3
[INFO] [stderr]   Downloaded darling_macro v0.14.3
[INFO] [stderr]   Downloaded darling v0.14.3
[INFO] [stderr]   Downloaded toml_edit v0.19.4
[INFO] [stderr]   Downloaded deku v0.16.0
[INFO] [stderr]   Downloaded winnow v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1f504f40275c226d80c2adaf5f461902b3c74eb3962c1946fc0fdf3c499fa09
[INFO] running `Command { std: "docker" "start" "-a" "e1f504f40275c226d80c2adaf5f461902b3c74eb3962c1946fc0fdf3c499fa09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1f504f40275c226d80c2adaf5f461902b3c74eb3962c1946fc0fdf3c499fa09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1f504f40275c226d80c2adaf5f461902b3c74eb3962c1946fc0fdf3c499fa09", kill_on_drop: false }`
[INFO] [stdout] e1f504f40275c226d80c2adaf5f461902b3c74eb3962c1946fc0fdf3c499fa09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8cd2b075b669abbc07ded4f5cdd7daeddbe7d4403cf3df1b3c1d8de0dcbd88e7
[INFO] running `Command { std: "docker" "start" "-a" "8cd2b075b669abbc07ded4f5cdd7daeddbe7d4403cf3df1b3c1d8de0dcbd88e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.7
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling toml_datetime v0.6.1
[INFO] [stderr]    Compiling winnow v0.3.4
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]     Checking chrono v0.4.23
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling toml_edit v0.19.4
[INFO] [stderr]    Compiling darling_core v0.14.3
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling darling_macro v0.14.3
[INFO] [stderr]    Compiling darling v0.14.3
[INFO] [stderr]    Compiling deku_derive v0.16.0
[INFO] [stderr]     Checking deku v0.16.0
[INFO] [stderr]     Checking warts v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/object.rs:86:21
[INFO] [stdout]    |
[INFO] [stdout] 86 |                 for mut hop in t.hops.iter_mut() {
[INFO] [stdout]    |                     ----^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/object.rs:86:21
[INFO] [stdout]    |
[INFO] [stdout] 86 |                 for mut hop in t.hops.iter_mut() {
[INFO] [stdout]    |                     ----^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.83s
[INFO] running `Command { std: "docker" "inspect" "8cd2b075b669abbc07ded4f5cdd7daeddbe7d4403cf3df1b3c1d8de0dcbd88e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cd2b075b669abbc07ded4f5cdd7daeddbe7d4403cf3df1b3c1d8de0dcbd88e7", kill_on_drop: false }`
[INFO] [stdout] 8cd2b075b669abbc07ded4f5cdd7daeddbe7d4403cf3df1b3c1d8de0dcbd88e7
