[INFO] cloning repository https://github.com/JamesVictor-O/rust_ownership
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JamesVictor-O/rust_ownership" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesVictor-O%2Frust_ownership", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesVictor-O%2Frust_ownership'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6ff50271de1023bcfd8c282318d485ca87decdae
[INFO] checking JamesVictor-O/rust_ownership against try#3248bace201b6227b0ff78eacc8b00d805551a86 for pr-153513
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesVictor-O%2Frust_ownership" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/JamesVictor-O/rust_ownership
[INFO] finished tweaking git repo https://github.com/JamesVictor-O/rust_ownership
[INFO] tweaked toml for git repo https://github.com/JamesVictor-O/rust_ownership written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JamesVictor-O/rust_ownership on toolchain 3248bace201b6227b0ff78eacc8b00d805551a86
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3248bace201b6227b0ff78eacc8b00d805551a86" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/JamesVictor-O/rust_ownership 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" "+3248bace201b6227b0ff78eacc8b00d805551a86" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+3248bace201b6227b0ff78eacc8b00d805551a86" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20c7f6c8d1d805f6ef74a0415722b10161b840ece8e512c70a2256874c4a496e
[INFO] running `Command { std: "docker" "start" "-a" "20c7f6c8d1d805f6ef74a0415722b10161b840ece8e512c70a2256874c4a496e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20c7f6c8d1d805f6ef74a0415722b10161b840ece8e512c70a2256874c4a496e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20c7f6c8d1d805f6ef74a0415722b10161b840ece8e512c70a2256874c4a496e", kill_on_drop: false }`
[INFO] [stdout] 20c7f6c8d1d805f6ef74a0415722b10161b840ece8e512c70a2256874c4a496e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+3248bace201b6227b0ff78eacc8b00d805551a86" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44a06558d6684df5cbf032a0144b96ab6d4f862f4faac60bbb9e42a21224b8b4
[INFO] running `Command { std: "docker" "start" "-a" "44a06558d6684df5cbf032a0144b96ab6d4f862f4faac60bbb9e42a21224b8b4", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_ownership v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value passed to `var` is never read
[INFO] [stdout]   --> src/functionOwnership.rs:43:19
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn stack_function(mut var: i32) {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value passed to `var` is never read
[INFO] [stdout]   --> src/functionOwnership.rs:43:19
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn stack_function(mut var: i32) {
[INFO] [stdout]    |                   ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let s2= s1;
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/functionOwnership.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn run(){
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_ownership` is never used
[INFO] [stdout]   --> src/functionOwnership.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn take_ownership(arr:Vec<i32>){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `give_ownership` is never used
[INFO] [stdout]   --> src/functionOwnership.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn give_ownership() -> Vec<i32>{
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_and_give` is never used
[INFO] [stdout]   --> src/functionOwnership.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn take_and_give(mut arr: Vec<i32>) -> Vec<i32>{
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `stack_function` is never used
[INFO] [stdout]   --> src/functionOwnership.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn stack_function(mut var: i32) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `functionOwnership` should have a snake case name
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod functionOwnership;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `function_ownership`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s2`
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let s2= s1;
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_s2`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/functionOwnership.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub fn run(){
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_ownership` is never used
[INFO] [stdout]   --> src/functionOwnership.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn take_ownership(arr:Vec<i32>){
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `give_ownership` is never used
[INFO] [stdout]   --> src/functionOwnership.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn give_ownership() -> Vec<i32>{
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_and_give` is never used
[INFO] [stdout]   --> src/functionOwnership.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn take_and_give(mut arr: Vec<i32>) -> Vec<i32>{
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `stack_function` is never used
[INFO] [stdout]   --> src/functionOwnership.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn stack_function(mut var: i32) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `functionOwnership` should have a snake case name
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | mod functionOwnership;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `function_ownership`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] running `Command { std: "docker" "inspect" "44a06558d6684df5cbf032a0144b96ab6d4f862f4faac60bbb9e42a21224b8b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44a06558d6684df5cbf032a0144b96ab6d4f862f4faac60bbb9e42a21224b8b4", kill_on_drop: false }`
[INFO] [stdout] 44a06558d6684df5cbf032a0144b96ab6d4f862f4faac60bbb9e42a21224b8b4