[INFO] cloning repository https://github.com/Luisander69/network_rust_hello
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Luisander69/network_rust_hello" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLuisander69%2Fnetwork_rust_hello", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLuisander69%2Fnetwork_rust_hello'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0f898589893dd0c591f8b398da213d2b467333e9
[INFO] building Luisander69/network_rust_hello against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLuisander69%2Fnetwork_rust_hello" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Luisander69/network_rust_hello on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Luisander69/network_rust_hello
[INFO] finished tweaking git repo https://github.com/Luisander69/network_rust_hello
[INFO] tweaked toml for git repo https://github.com/Luisander69/network_rust_hello written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Luisander69/network_rust_hello 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v2.0.33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6bd30e197dd60c9643550037b2b7b513a4208248a52692b99cb1446c75a2140f
[INFO] running `Command { std: "docker" "start" "-a" "6bd30e197dd60c9643550037b2b7b513a4208248a52692b99cb1446c75a2140f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bd30e197dd60c9643550037b2b7b513a4208248a52692b99cb1446c75a2140f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bd30e197dd60c9643550037b2b7b513a4208248a52692b99cb1446c75a2140f", kill_on_drop: false }`
[INFO] [stdout] 6bd30e197dd60c9643550037b2b7b513a4208248a52692b99cb1446c75a2140f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4b18066d9047216ffea1a5b0254b636d1318d8fc7fbb9b4197e252ba40fa1f0
[INFO] running `Command { std: "docker" "start" "-a" "c4b18066d9047216ffea1a5b0254b636d1318d8fc7fbb9b4197e252ba40fa1f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling network_rust_hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let mut mystr = input;
[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: function `longer_vector` is never used
[INFO] [stdout]   --> src/main.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn longer_vector<'a>(x: &'a[i32], y :&'a[i32]) -> &'a[i32]{
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `heap_example` is never used
[INFO] [stdout]   --> src/main.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn heap_example(input:&mut String){
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `color_text` is never used
[INFO] [stdout]   --> src/main.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn color_text(){
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.97s
[INFO] running `Command { std: "docker" "inspect" "c4b18066d9047216ffea1a5b0254b636d1318d8fc7fbb9b4197e252ba40fa1f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4b18066d9047216ffea1a5b0254b636d1318d8fc7fbb9b4197e252ba40fa1f0", kill_on_drop: false }`
[INFO] [stdout] c4b18066d9047216ffea1a5b0254b636d1318d8fc7fbb9b4197e252ba40fa1f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3104d749b34c0796b91b537bc6cbb6e49083b3514d62eff24fc6a3fd334bf40b
[INFO] running `Command { std: "docker" "start" "-a" "3104d749b34c0796b91b537bc6cbb6e49083b3514d62eff24fc6a3fd334bf40b", kill_on_drop: false }`
[INFO] [stderr]    Compiling network_rust_hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let mut mystr = input;
[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: function `longer_vector` is never used
[INFO] [stdout]   --> src/main.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn longer_vector<'a>(x: &'a[i32], y :&'a[i32]) -> &'a[i32]{
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `heap_example` is never used
[INFO] [stdout]   --> src/main.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn heap_example(input:&mut String){
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `color_text` is never used
[INFO] [stdout]   --> src/main.rs:30:4
[INFO] [stdout]    |
[INFO] [stdout] 30 | fn color_text(){
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "3104d749b34c0796b91b537bc6cbb6e49083b3514d62eff24fc6a3fd334bf40b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3104d749b34c0796b91b537bc6cbb6e49083b3514d62eff24fc6a3fd334bf40b", kill_on_drop: false }`
[INFO] [stdout] 3104d749b34c0796b91b537bc6cbb6e49083b3514d62eff24fc6a3fd334bf40b