[INFO] cloning repository https://github.com/Rep2/RS_2_lab
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Rep2/RS_2_lab" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRep2%2FRS_2_lab", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRep2%2FRS_2_lab'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04983c92873fb56da2b806ea7bd6b70e11178bc0
[INFO] checking Rep2/RS_2_lab against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRep2%2FRS_2_lab" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Rep2/RS_2_lab on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Rep2/RS_2_lab
[INFO] finished tweaking git repo https://github.com/Rep2/RS_2_lab
[INFO] tweaked toml for git repo https://github.com/Rep2/RS_2_lab written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Rep2/RS_2_lab already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fdb135dd34028e8360f4edf6353d437018dcbec7aa24a1af01c685e9ee4c4762
[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" "fdb135dd34028e8360f4edf6353d437018dcbec7aa24a1af01c685e9ee4c4762", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdb135dd34028e8360f4edf6353d437018dcbec7aa24a1af01c685e9ee4c4762", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdb135dd34028e8360f4edf6353d437018dcbec7aa24a1af01c685e9ee4c4762", kill_on_drop: false }`
[INFO] [stdout] fdb135dd34028e8360f4edf6353d437018dcbec7aa24a1af01c685e9ee4c4762
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac85de69e6a022dd8113422875c79ced9752c1be2413134c78600bb7e776c9c2
[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" "ac85de69e6a022dd8113422875c79ced9752c1be2413134c78600bb7e776c9c2", kill_on_drop: false }`
[INFO] [stderr]     Checking rs2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/nodes.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{self, BufReader};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/nodes.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/nodes.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{self, BufReader};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/nodes.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> src/main.rs:24:6
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let node = nodes::register_node();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/nodes.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut file_in = match OpenOptions::new().
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> src/main.rs:24:6
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let node = nodes::register_node();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `readLine` should have a snake case name
[INFO] [stdout]   --> src/nodes.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut readLine = String::new();
[INFO] [stdout]    |             ^^^^^^^^ help: convert the identifier to snake case: `read_line`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/nodes.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut file_in = match OpenOptions::new().
[INFO] [stdout]    |         ----^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `readLine` should have a snake case name
[INFO] [stdout]   --> src/nodes.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut readLine = String::new();
[INFO] [stdout]    |             ^^^^^^^^ help: convert the identifier to snake case: `read_line`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "ac85de69e6a022dd8113422875c79ced9752c1be2413134c78600bb7e776c9c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac85de69e6a022dd8113422875c79ced9752c1be2413134c78600bb7e776c9c2", kill_on_drop: false }`
[INFO] [stdout] ac85de69e6a022dd8113422875c79ced9752c1be2413134c78600bb7e776c9c2