[INFO] cloning repository https://github.com/lamtailoi2/learn-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lamtailoi2/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flamtailoi2%2Flearn-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flamtailoi2%2Flearn-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9db0f3b4961bc15aee914a80d75fe448bfaa98b1
[INFO] testing lamtailoi2/learn-rust against beta-2025-09-21 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flamtailoi2%2Flearn-rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lamtailoi2/learn-rust
[INFO] finished tweaking git repo https://github.com/lamtailoi2/learn-rust
[INFO] tweaked toml for git repo https://github.com/lamtailoi2/learn-rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lamtailoi2/learn-rust on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lamtailoi2/learn-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-2025-09-21" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded log v0.4.26
[INFO] [stderr] error: failed to create directory `/workspace/cargo-home/registry/cache/index.crates.io-1949cf8c6b5b557f`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] testing lamtailoi2/learn-rust against beta-2025-09-21 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flamtailoi2%2Flearn-rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lamtailoi2/learn-rust
[INFO] finished tweaking git repo https://github.com/lamtailoi2/learn-rust
[INFO] tweaked toml for git repo https://github.com/lamtailoi2/learn-rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lamtailoi2/learn-rust on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lamtailoi2/learn-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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded log v0.4.26
[INFO] [stderr] error: failed to create directory `/workspace/cargo-home/registry/cache/index.crates.io-1949cf8c6b5b557f`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] testing lamtailoi2/learn-rust against beta-2025-09-21 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flamtailoi2%2Flearn-rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lamtailoi2/learn-rust
[INFO] finished tweaking git repo https://github.com/lamtailoi2/learn-rust
[INFO] tweaked toml for git repo https://github.com/lamtailoi2/learn-rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lamtailoi2/learn-rust on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lamtailoi2/learn-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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded log v0.4.26
[INFO] [stderr] error: failed to create directory `/workspace/cargo-home/registry/cache/index.crates.io-1949cf8c6b5b557f`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] testing lamtailoi2/learn-rust against beta-2025-09-21 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flamtailoi2%2Flearn-rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lamtailoi2/learn-rust
[INFO] finished tweaking git repo https://github.com/lamtailoi2/learn-rust
[INFO] tweaked toml for git repo https://github.com/lamtailoi2/learn-rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lamtailoi2/learn-rust on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lamtailoi2/learn-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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded log v0.4.26
[INFO] [stderr] error: failed to create directory `/workspace/cargo-home/registry/cache/index.crates.io-1949cf8c6b5b557f`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] testing lamtailoi2/learn-rust against beta-2025-09-21 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flamtailoi2%2Flearn-rust" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lamtailoi2/learn-rust
[INFO] finished tweaking git repo https://github.com/lamtailoi2/learn-rust
[INFO] tweaked toml for git repo https://github.com/lamtailoi2/learn-rust written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lamtailoi2/learn-rust on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lamtailoi2/learn-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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded log v0.4.26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78aeb852b3b232c0e75099b0263c624b20e43a3c3aa5ad6a27a4f8ad2b953036
[INFO] running `Command { std: "docker" "start" "-a" "78aeb852b3b232c0e75099b0263c624b20e43a3c3aa5ad6a27a4f8ad2b953036", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78aeb852b3b232c0e75099b0263c624b20e43a3c3aa5ad6a27a4f8ad2b953036", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78aeb852b3b232c0e75099b0263c624b20e43a3c3aa5ad6a27a4f8ad2b953036", kill_on_drop: false }`
[INFO] [stdout] 78aeb852b3b232c0e75099b0263c624b20e43a3c3aa5ad6a27a4f8ad2b953036
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65dfa147805e4b8190de47f09c68f61621cd03587088b9a08688f66c4683c758
[INFO] running `Command { std: "docker" "start" "-a" "65dfa147805e4b8190de47f09c68f61621cd03587088b9a08688f66c4683c758", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn-rust-1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/main.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{self, Read, Write};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:90:21
[INFO] [stdout]    |
[INFO] [stdout] 90 |                 let mut update_ID_normalized = update_ID.trim().to_lowercase();
[INFO] [stdout]    |                     ----^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `getName` is never used
[INFO] [stdout]   --> src/main.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout]  9 | trait StudentTrait {
[INFO] [stdout]    |       ------------ method in this trait
[INFO] [stdout] 10 |     fn getInfo(&self) -> String;
[INFO] [stdout] 11 |     fn getName(&self) -> String;
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait method `getInfo` should have a snake case name
[INFO] [stdout]   --> src/main.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn getInfo(&self) -> String;
[INFO] [stdout]    |        ^^^^^^^ help: convert the identifier to snake case: `get_info`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait method `getName` should have a snake case name
[INFO] [stdout]   --> src/main.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn getName(&self) -> String;
[INFO] [stdout]    |        ^^^^^^^ help: convert the identifier to snake case: `get_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `delete_ID` should have a snake case name
[INFO] [stdout]   --> src/main.rs:67:25
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 let mut delete_ID = String::new();
[INFO] [stdout]    |                         ^^^^^^^^^ help: convert the identifier to snake case: `delete_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `update_ID` should have a snake case name
[INFO] [stdout]   --> src/main.rs:88:25
[INFO] [stdout]    |
[INFO] [stdout] 88 |                 let mut update_ID = String::new();
[INFO] [stdout]    |                         ^^^^^^^^^ help: convert the identifier to snake case: `update_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `update_ID_normalized` should have a snake case name
[INFO] [stdout]   --> src/main.rs:90:25
[INFO] [stdout]    |
[INFO] [stdout] 90 |                 let mut update_ID_normalized = update_ID.trim().to_lowercase();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `update_id_normalized`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "65dfa147805e4b8190de47f09c68f61621cd03587088b9a08688f66c4683c758", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65dfa147805e4b8190de47f09c68f61621cd03587088b9a08688f66c4683c758", kill_on_drop: false }`
[INFO] [stdout] 65dfa147805e4b8190de47f09c68f61621cd03587088b9a08688f66c4683c758
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e903518a164296fd6b822b5454a18717a9e4e8618ff3360512cdbb2bde4d3f21
[INFO] running `Command { std: "docker" "start" "-a" "e903518a164296fd6b822b5454a18717a9e4e8618ff3360512cdbb2bde4d3f21", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn-rust-1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/main.rs:1:21
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{self, Read, Write};
[INFO] [stdout]   |                     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:90:21
[INFO] [stdout]    |
[INFO] [stdout] 90 |                 let mut update_ID_normalized = update_ID.trim().to_lowercase();
[INFO] [stdout]    |                     ----^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `getName` is never used
[INFO] [stdout]   --> src/main.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout]  9 | trait StudentTrait {
[INFO] [stdout]    |       ------------ method in this trait
[INFO] [stdout] 10 |     fn getInfo(&self) -> String;
[INFO] [stdout] 11 |     fn getName(&self) -> String;
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait method `getInfo` should have a snake case name
[INFO] [stdout]   --> src/main.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 |     fn getInfo(&self) -> String;
[INFO] [stdout]    |        ^^^^^^^ help: convert the identifier to snake case: `get_info`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait method `getName` should have a snake case name
[INFO] [stdout]   --> src/main.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn getName(&self) -> String;
[INFO] [stdout]    |        ^^^^^^^ help: convert the identifier to snake case: `get_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `delete_ID` should have a snake case name
[INFO] [stdout]   --> src/main.rs:67:25
[INFO] [stdout]    |
[INFO] [stdout] 67 |                 let mut delete_ID = String::new();
[INFO] [stdout]    |                         ^^^^^^^^^ help: convert the identifier to snake case: `delete_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `update_ID` should have a snake case name
[INFO] [stdout]   --> src/main.rs:88:25
[INFO] [stdout]    |
[INFO] [stdout] 88 |                 let mut update_ID = String::new();
[INFO] [stdout]    |                         ^^^^^^^^^ help: convert the identifier to snake case: `update_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `update_ID_normalized` should have a snake case name
[INFO] [stdout]   --> src/main.rs:90:25
[INFO] [stdout]    |
[INFO] [stdout] 90 |                 let mut update_ID_normalized = update_ID.trim().to_lowercase();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `update_id_normalized`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/tmp/rustcb2B3vD/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libtest-*,libgetopts-*,librustc_std_workspace_std-*,libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,libcfg_if-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,liblibc-*,librustc_std_workspace_core-*,liballoc-*,libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-L" "/tmp/rustcb2B3vD/raw-dylibs" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/learn_rust_1-14fe19ef49b5d52a" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
[INFO] [stdout]            #0 0x00007db4fb24d657 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/rustwide/rustup-home/toolchains/beta-2025-09-21-x86_64-unknown-linux-gnu/lib/libLLVM.so.21.1-rust-1.91.0-beta+0x564d657)
[INFO] [stdout]            #1 0x00007db4fb24df4d SignalHandler(int, siginfo_t*, void*) (/opt/rustwide/rustup-home/toolchains/beta-2025-09-21-x86_64-unknown-linux-gnu/lib/libLLVM.so.21.1-rust-1.91.0-beta+0x564df4d)
[INFO] [stdout]            #2 0x00007db4f5a33330 (/lib/x86_64-linux-gnu/libc.so.6+0x45330)
[INFO] [stdout]            #3 0x00007db4f5b76bc0 (/lib/x86_64-linux-gnu/libc.so.6+0x188bc0)
[INFO] [stdout]            #4 0x00006529ac090f64 void lld::elf::InputSection::writeTo<llvm::object::ELFType<(llvm::endianness)1, true>>(lld::elf::Ctx&, unsigned char*) (/opt/rustwide/rustup-home/toolchains/beta-2025-09-21-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/bin/rust-lld+0x41ef64)
[INFO] [stdout]            #5 0x00006529ac0fb58b void lld::elf::OutputSection::writeTo<llvm::object::ELFType<(llvm::endianness)1, true>>(lld::elf::Ctx&, unsigned char*, llvm::parallel::TaskGroup&)::'lambda'(unsigned long, unsigned long)::operator()(unsigned long, unsigned long) const OutputSections.cpp:0:0
[INFO] [stdout]            #6 0x00007db4fb1fcf22 std::_Function_handler<void (), llvm::parallel::TaskGroup::spawn(std::function<void ()>)::$_0>::_M_invoke(std::_Any_data const&) (/opt/rustwide/rustup-home/toolchains/beta-2025-09-21-x86_64-unknown-linux-gnu/lib/libLLVM.so.21.1-rust-1.91.0-beta+0x55fcf22)
[INFO] [stdout]            #7 0x00007db4fb1fc98d llvm::parallel::detail::(anonymous namespace)::ThreadPoolExecutor::work(llvm::ThreadPoolStrategy, unsigned int) (/opt/rustwide/rustup-home/toolchains/beta-2025-09-21-x86_64-unknown-linux-gnu/lib/libLLVM.so.21.1-rust-1.91.0-beta+0x55fc98d)
[INFO] [stdout]            #8 0x00007db4fb173420 execute_native_thread_routine (/opt/rustwide/rustup-home/toolchains/beta-2025-09-21-x86_64-unknown-linux-gnu/lib/libLLVM.so.21.1-rust-1.91.0-beta+0x5573420)
[INFO] [stdout]            #9 0x00007db4f5a8aaa4 (/lib/x86_64-linux-gnu/libc.so.6+0x9caa4)
[INFO] [stdout]           #10 0x00007db4f5b17a34 clone (/lib/x86_64-linux-gnu/libc.so.6+0x129a34)
[INFO] [stdout]           collect2: fatal error: ld terminated with signal 7 [Bus error], core dumped
[INFO] [stdout]           compilation terminated.
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `learn-rust-1` (bin "learn-rust-1" test) due to 1 previous error; 8 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "e903518a164296fd6b822b5454a18717a9e4e8618ff3360512cdbb2bde4d3f21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e903518a164296fd6b822b5454a18717a9e4e8618ff3360512cdbb2bde4d3f21", kill_on_drop: false }`
[INFO] [stdout] e903518a164296fd6b822b5454a18717a9e4e8618ff3360512cdbb2bde4d3f21
