[INFO] cloning repository https://github.com/rostislavjadavan/rust-todo-list
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rostislavjadavan/rust-todo-list" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frostislavjadavan%2Frust-todo-list", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frostislavjadavan%2Frust-todo-list'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3c088fc1d0100727d7659281bafe3befee936e2
[INFO] checking rostislavjadavan/rust-todo-list against master#0dce3f606e05cffab7361c132a399d3550ab0df8 for pr-78376
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frostislavjadavan%2Frust-todo-list" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rostislavjadavan/rust-todo-list on toolchain 0dce3f606e05cffab7361c132a399d3550ab0df8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rostislavjadavan/rust-todo-list
[INFO] finished tweaking git repo https://github.com/rostislavjadavan/rust-todo-list
[INFO] tweaked toml for git repo https://github.com/rostislavjadavan/rust-todo-list written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/rostislavjadavan/rust-todo-list already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7d9f716a9ddac3a423c5865e3409508ba391d9f0fc0a6403b6e1bbf11272c056
[INFO] running `Command { std: "docker" "start" "-a" "7d9f716a9ddac3a423c5865e3409508ba391d9f0fc0a6403b6e1bbf11272c056", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d9f716a9ddac3a423c5865e3409508ba391d9f0fc0a6403b6e1bbf11272c056", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d9f716a9ddac3a423c5865e3409508ba391d9f0fc0a6403b6e1bbf11272c056", kill_on_drop: false }`
[INFO] [stdout] 7d9f716a9ddac3a423c5865e3409508ba391d9f0fc0a6403b6e1bbf11272c056
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0dce3f606e05cffab7361c132a399d3550ab0df8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78e633595580a5a502a2ec9ffb92b210c3807931ec3d5ae42f74fb15c9f1be5a
[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" "78e633595580a5a502a2ec9ffb92b210c3807931ec3d5ae42f74fb15c9f1be5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.1
[INFO] [stderr]    Compiling syn v1.0.3
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking rust-todo-list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/main.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |         if index >= 0 && index < self.items.len() {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/main.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |         if index >= 0 && index < self.items.len() {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/main.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 |         if index >= 0 && index < self.items.len() {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/main.rs:49:12
[INFO] [stdout]    |
[INFO] [stdout] 49 |         if index >= 0 && index < self.items.len() {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.09s
[INFO] running `Command { std: "docker" "inspect" "78e633595580a5a502a2ec9ffb92b210c3807931ec3d5ae42f74fb15c9f1be5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78e633595580a5a502a2ec9ffb92b210c3807931ec3d5ae42f74fb15c9f1be5a", kill_on_drop: false }`
[INFO] [stdout] 78e633595580a5a502a2ec9ffb92b210c3807931ec3d5ae42f74fb15c9f1be5a