[INFO] cloning repository https://github.com/4ge32/rddsv
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/4ge32/rddsv" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4ge32%2Frddsv", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4ge32%2Frddsv'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 680934a9ea4e9555df994c4e7d72b5a43acc2576
[INFO] checking 4ge32/rddsv against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F4ge32%2Frddsv" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/4ge32/rddsv on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/4ge32/rddsv
[INFO] finished tweaking git repo https://github.com/4ge32/rddsv
[INFO] tweaked toml for git repo https://github.com/4ge32/rddsv written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/4ge32/rddsv already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded file_diff v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c33a172286293dc4c7967282a56408071da2b808d83f8707d870ea96bf93c05
[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" "3c33a172286293dc4c7967282a56408071da2b808d83f8707d870ea96bf93c05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c33a172286293dc4c7967282a56408071da2b808d83f8707d870ea96bf93c05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c33a172286293dc4c7967282a56408071da2b808d83f8707d870ea96bf93c05", kill_on_drop: false }`
[INFO] [stdout] 3c33a172286293dc4c7967282a56408071da2b808d83f8707d870ea96bf93c05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] ddbdc18f3726d0c1e5643c3ed6f9db73559093b726a13892be4878b4d1426eb7
[INFO] running `Command { std: "docker" "start" "-a" "ddbdc18f3726d0c1e5643c3ed6f9db73559093b726a13892be4878b4d1426eb7", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking file_diff v1.0.0
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]     Checking rddsv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `edge`
[INFO] [stdout]   --> src/algorithm.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn has_edge(edge: usize) -> bool {
[INFO] [stdout]    |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_edge`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new`
[INFO] [stdout]   --> src/algorithm.rs:18:43
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn insert(&mut self, edge: usize, new: usize) {
[INFO] [stdout]    |                                           ^^^ help: if this is intentional, prefix it with an underscore: `_new`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `edge`
[INFO] [stdout]   --> src/algorithm.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn has_edge(edge: usize) -> bool {
[INFO] [stdout]    |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_edge`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new`
[INFO] [stdout]   --> src/algorithm.rs:18:43
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn insert(&mut self, edge: usize, new: usize) {
[INFO] [stdout]    |                                           ^^^ help: if this is intentional, prefix it with an underscore: `_new`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `dimension`
[INFO] [stdout]  --> src/algorithm.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     dimension: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `dimension`
[INFO] [stdout]  --> src/algorithm.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     dimension: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.97s
[INFO] running `Command { std: "docker" "inspect" "ddbdc18f3726d0c1e5643c3ed6f9db73559093b726a13892be4878b4d1426eb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddbdc18f3726d0c1e5643c3ed6f9db73559093b726a13892be4878b4d1426eb7", kill_on_drop: false }`
[INFO] [stdout] ddbdc18f3726d0c1e5643c3ed6f9db73559093b726a13892be4878b4d1426eb7