[INFO] cloning repository https://github.com/vanichitkara/ReferencesInRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vanichitkara/ReferencesInRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvanichitkara%2FReferencesInRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvanichitkara%2FReferencesInRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 60510bc79b3fb2ea61fefddb5fbbfc974b8b9a72
[INFO] checking vanichitkara/ReferencesInRust against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvanichitkara%2FReferencesInRust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/vanichitkara/ReferencesInRust
[INFO] finished tweaking git repo https://github.com/vanichitkara/ReferencesInRust
[INFO] tweaked toml for git repo https://github.com/vanichitkara/ReferencesInRust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/vanichitkara/ReferencesInRust on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/vanichitkara/ReferencesInRust 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2f4667246027873266f863b9c972682a9499f725f4990c0fb016118cad2fe19
[INFO] running `Command { std: "docker" "start" "-a" "b2f4667246027873266f863b9c972682a9499f725f4990c0fb016118cad2fe19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2f4667246027873266f863b9c972682a9499f725f4990c0fb016118cad2fe19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2f4667246027873266f863b9c972682a9499f725f4990c0fb016118cad2fe19", kill_on_drop: false }`
[INFO] [stdout] b2f4667246027873266f863b9c972682a9499f725f4990c0fb016118cad2fe19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5316cad396abd73128a6a85411b0889549d8d2ada180861ad90b0b6aa26dd75
[INFO] running `Command { std: "docker" "start" "-a" "d5316cad396abd73128a6a85411b0889549d8d2ada180861ad90b0b6aa26dd75", kill_on_drop: false }`
[INFO] [stderr]     Checking ReferencesInRust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0106]: missing lifetime specifier
[INFO] [stdout]   --> src/bin/references.rs:53:20
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn return_ref() -> &String {
[INFO] [stdout]    |                    ^ expected named lifetime parameter
[INFO] [stdout]    |
[INFO] [stdout]    = help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
[INFO] [stdout] help: consider using the `'static` lifetime, but this is uncommon unless you're returning a borrowed value from a `const` or a `static`
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn return_ref() -> &'static String {
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] help: instead, you are more likely to want to return an owned value
[INFO] [stdout]    |
[INFO] [stdout] 53 - fn return_ref() -> &String {
[INFO] [stdout] 53 + fn return_ref() -> String {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0106]: missing lifetime specifier
[INFO] [stdout]   --> src/bin/references.rs:53:20
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn return_ref() -> &String {
[INFO] [stdout]    |                    ^ expected named lifetime parameter
[INFO] [stdout]    |
[INFO] [stdout]    = help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
[INFO] [stdout] help: consider using the `'static` lifetime, but this is uncommon unless you're returning a borrowed value from a `const` or a `static`
[INFO] [stdout]    |
[INFO] [stdout] 53 | fn return_ref() -> &'static String {
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] help: instead, you are more likely to want to return an owned value
[INFO] [stdout]    |
[INFO] [stdout] 53 - fn return_ref() -> &String {
[INFO] [stdout] 53 + fn return_ref() -> String {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vec1`
[INFO] [stdout]   --> src/bin/data_structures.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let vec1 = vec!["h","e","l","o"];
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_vec1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0106`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0106`.
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/data_structures.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut args:Vec<String> = env::args().collect();
[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] [stderr] error: could not compile `ReferencesInRust` (bin "references" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `ReferencesInRust` (bin "references") due to 1 previous error
[INFO] [stdout] warning: unused variable: `vec1`
[INFO] [stdout]   --> src/bin/data_structures.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let vec1 = vec!["h","e","l","o"];
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_vec1`
[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/bin/data_structures.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let mut args:Vec<String> = env::args().collect();
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `firstName` should have a snake case name
[INFO] [stdout]   --> src/bin/data_structures.rs:44:21
[INFO] [stdout]    |
[INFO] [stdout] 44 |             let mut firstName = String::new();
[INFO] [stdout]    |                     ^^^^^^^^^ help: convert the identifier to snake case: `first_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `lastName` should have a snake case name
[INFO] [stdout]   --> src/bin/data_structures.rs:45:21
[INFO] [stdout]    |
[INFO] [stdout] 45 |             let mut lastName = String::new();
[INFO] [stdout]    |                     ^^^^^^^^ help: convert the identifier to snake case: `last_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/data_structures.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut args:Vec<String> = env::args().collect();
[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 does not need to be mutable
[INFO] [stdout]   --> src/bin/data_structures.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let mut args:Vec<String> = env::args().collect();
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `firstName` should have a snake case name
[INFO] [stdout]   --> src/bin/data_structures.rs:44:21
[INFO] [stdout]    |
[INFO] [stdout] 44 |             let mut firstName = String::new();
[INFO] [stdout]    |                     ^^^^^^^^^ help: convert the identifier to snake case: `first_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `lastName` should have a snake case name
[INFO] [stdout]   --> src/bin/data_structures.rs:45:21
[INFO] [stdout]    |
[INFO] [stdout] 45 |             let mut lastName = String::new();
[INFO] [stdout]    |                     ^^^^^^^^ help: convert the identifier to snake case: `last_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d5316cad396abd73128a6a85411b0889549d8d2ada180861ad90b0b6aa26dd75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5316cad396abd73128a6a85411b0889549d8d2ada180861ad90b0b6aa26dd75", kill_on_drop: false }`
[INFO] [stdout] d5316cad396abd73128a6a85411b0889549d8d2ada180861ad90b0b6aa26dd75