[INFO] cloning repository https://github.com/tahmid56/RustTutorials
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tahmid56/RustTutorials" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftahmid56%2FRustTutorials", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftahmid56%2FRustTutorials'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a858d6ef0aad729d4ce814e3b30eac172c6a0ddb
[INFO] checking tahmid56/RustTutorials against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftahmid56%2FRustTutorials" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tahmid56/RustTutorials on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tahmid56/RustTutorials
[INFO] finished tweaking git repo https://github.com/tahmid56/RustTutorials
[INFO] tweaked toml for git repo https://github.com/tahmid56/RustTutorials written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tahmid56/RustTutorials 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap_lex v0.7.1
[INFO] [stderr]   Downloaded clap_builder v4.5.9
[INFO] [stderr]   Downloaded clap_derive v4.5.8
[INFO] [stderr]   Downloaded clap v4.5.9
[INFO] [stderr]   Downloaded dashmap v6.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7652df22b437e0839a0ae0560860ccfa369b65ed88b60c240eb52369c8fd49cc
[INFO] running `Command { std: "docker" "start" "-a" "7652df22b437e0839a0ae0560860ccfa369b65ed88b60c240eb52369c8fd49cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7652df22b437e0839a0ae0560860ccfa369b65ed88b60c240eb52369c8fd49cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7652df22b437e0839a0ae0560860ccfa369b65ed88b60c240eb52369c8fd49cc", kill_on_drop: false }`
[INFO] [stdout] 7652df22b437e0839a0ae0560860ccfa369b65ed88b60c240eb52369c8fd49cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbf6563a5b04dd847a537a1257dc9de1c196310181c268aa8024417fa64bd7c5
[INFO] running `Command { std: "docker" "start" "-a" "fbf6563a5b04dd847a537a1257dc9de1c196310181c268aa8024417fa64bd7c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling serde_json v1.0.120
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]     Checking utf8parse v0.2.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]     Checking anstyle v1.0.7
[INFO] [stderr]     Checking colorchoice v1.0.1
[INFO] [stderr]     Checking anstyle-query v1.1.0
[INFO] [stderr]     Checking is_terminal_polyfill v1.70.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]     Checking smallvec v1.13.2
[INFO] [stderr]     Checking clap_lex v0.7.1
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking rwlocks v0.1.0 (/opt/rustwide/workdir/section2/rwlocks)
[INFO] [stderr]     Checking anstyle-parse v0.2.4
[INFO] [stderr]     Checking workers v0.1.0 (/opt/rustwide/workdir/section2/workers)
[INFO] [stderr]     Checking parking v0.1.0 (/opt/rustwide/workdir/section2/parking)
[INFO] [stderr]     Checking variables v0.1.0 (/opt/rustwide/workdir/section1/variables)
[INFO] [stderr]     Checking tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking mutexes v0.1.0 (/opt/rustwide/workdir/section2/mutexes)
[INFO] [stderr]     Checking footgun v0.1.0 (/opt/rustwide/workdir/section2/footgun)
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> section2/parking/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking anstream v0.6.14
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking divide_work v0.1.0 (/opt/rustwide/workdir/section2/divide_work)
[INFO] [stderr]     Checking channel1 v0.1.0 (/opt/rustwide/workdir/section2/channel1)
[INFO] [stderr]     Checking hello_world v0.1.0 (/opt/rustwide/workdir/section1/hello_world)
[INFO] [stderr]     Checking scoped_thread v0.1.0 (/opt/rustwide/workdir/section2/scoped_thread)
[INFO] [stderr]     Checking deadlocks v0.1.0 (/opt/rustwide/workdir/section2/deadlocks)
[INFO] [stderr]     Checking thread_builder v0.1.0 (/opt/rustwide/workdir/section2/thread_builder)
[INFO] [stderr]     Checking hello v0.1.0 (/opt/rustwide/workdir/section2/hello)
[INFO] [stdout] warning: unused import: `core::num`
[INFO] [stdout]  --> section2/parking/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::num;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N_THREADS` should have a snake case name
[INFO] [stdout]  --> section2/scoped_thread/src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let N_THREADS: usize = 8;
[INFO] [stdout]   |         ^^^^^^^^^ help: convert the identifier to snake case: `n_threads`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `N_THREADS` should have a snake case name
[INFO] [stdout]  --> section2/scoped_thread/src/main.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let N_THREADS: usize = 8;
[INFO] [stdout]   |         ^^^^^^^^^ help: convert the identifier to snake case: `n_threads`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hello_thread` is never used
[INFO] [stdout]  --> section2/hello/src/main.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn hello_thread(n: u32) {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hello_thread` is never used
[INFO] [stdout]  --> section2/hello/src/main.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn hello_thread(n: u32) {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking clap_builder v4.5.9
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.70
[INFO] [stderr]     Checking dashmap v6.0.1
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]     Checking dashing v0.1.0 (/opt/rustwide/workdir/section2/dashing)
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]    Compiling serde_derive v1.0.204
[INFO] [stderr]    Compiling clap_derive v4.5.8
[INFO] [stderr]     Checking clap v4.5.9
[INFO] [stderr]     Checking authentication v0.1.0 (/opt/rustwide/workdir/section1/authentication)
[INFO] [stderr]     Checking login v0.1.0 (/opt/rustwide/workdir/section1/login)
[INFO] [stderr]     Checking login_manager v0.1.0 (/opt/rustwide/workdir/section1/login_manager)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.76s
[INFO] running `Command { std: "docker" "inspect" "fbf6563a5b04dd847a537a1257dc9de1c196310181c268aa8024417fa64bd7c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbf6563a5b04dd847a537a1257dc9de1c196310181c268aa8024417fa64bd7c5", kill_on_drop: false }`
[INFO] [stdout] fbf6563a5b04dd847a537a1257dc9de1c196310181c268aa8024417fa64bd7c5