[INFO] cloning repository https://github.com/LooMaclin/reproduce_make_mut_inspection_bug_intellij_idea_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LooMaclin/reproduce_make_mut_inspection_bug_intellij_idea_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLooMaclin%2Freproduce_make_mut_inspection_bug_intellij_idea_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLooMaclin%2Freproduce_make_mut_inspection_bug_intellij_idea_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 19489252d5d7b675fb202a92ea9aa20395addd31
[INFO] testing LooMaclin/reproduce_make_mut_inspection_bug_intellij_idea_rust against beta-2023-04-20 for beta-1.70-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLooMaclin%2Freproduce_make_mut_inspection_bug_intellij_idea_rust" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LooMaclin/reproduce_make_mut_inspection_bug_intellij_idea_rust on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LooMaclin/reproduce_make_mut_inspection_bug_intellij_idea_rust
[INFO] finished tweaking git repo https://github.com/LooMaclin/reproduce_make_mut_inspection_bug_intellij_idea_rust
[INFO] tweaked toml for git repo https://github.com/LooMaclin/reproduce_make_mut_inspection_bug_intellij_idea_rust written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/LooMaclin/reproduce_make_mut_inspection_bug_intellij_idea_rust 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" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 48fea7b9829b2b68581c57cd43dc658db2ff61d2f081479d5744ef24313acdbb
[INFO] running `Command { std: "docker" "start" "-a" "48fea7b9829b2b68581c57cd43dc658db2ff61d2f081479d5744ef24313acdbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48fea7b9829b2b68581c57cd43dc658db2ff61d2f081479d5744ef24313acdbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48fea7b9829b2b68581c57cd43dc658db2ff61d2f081479d5744ef24313acdbb", kill_on_drop: false }`
[INFO] [stdout] 48fea7b9829b2b68581c57cd43dc658db2ff61d2f081479d5744ef24313acdbb
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb77a87226319aeb4e74273fd3581a07b67e9b9173f337b45a0ad65417f11801
[INFO] running `Command { std: "docker" "start" "-a" "eb77a87226319aeb4e74273fd3581a07b67e9b9173f337b45a0ad65417f11801", kill_on_drop: false }`
[INFO] [stderr]    Compiling reproduce_make_mut_inspection_bug_intellij_idea_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn test((a,b): (String, String)) {
[INFO] [stdout]   |            ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `a` as mutable, as it is not declared as mutable
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     a.insert(0, 'b');
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^ cannot borrow as mutable
[INFO] [stdout]   |
[INFO] [stdout] help: consider changing this to be mutable
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn test((mut a,b): (String, String)) {
[INFO] [stdout]   |          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0596`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `reproduce_make_mut_inspection_bug_intellij_idea_rust` (bin "reproduce_make_mut_inspection_bug_intellij_idea_rust") due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "eb77a87226319aeb4e74273fd3581a07b67e9b9173f337b45a0ad65417f11801", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb77a87226319aeb4e74273fd3581a07b67e9b9173f337b45a0ad65417f11801", kill_on_drop: false }`
[INFO] [stdout] eb77a87226319aeb4e74273fd3581a07b67e9b9173f337b45a0ad65417f11801
