[INFO] cloning repository https://github.com/mackoctavian/ultimate_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mackoctavian/ultimate_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmackoctavian%2Fultimate_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmackoctavian%2Fultimate_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 23ee1f17c5b6f65466e0bb2e70f82b08e2e3c99d [INFO] checking mackoctavian/ultimate_rust against try#4797991aa2efb6d658150f10425b3f3b5d10eceb for pr-143193 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmackoctavian%2Fultimate_rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/mackoctavian/ultimate_rust [INFO] finished tweaking git repo https://github.com/mackoctavian/ultimate_rust [INFO] tweaked toml for git repo https://github.com/mackoctavian/ultimate_rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/mackoctavian/ultimate_rust on toolchain 4797991aa2efb6d658150f10425b3f3b5d10eceb [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/mackoctavian/ultimate_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" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/69b790ad50934f7395c64be770397657c53a2f6a11d03a04e6385a7df3166faa-init/diff: no space left on device [INFO] checking mackoctavian/ultimate_rust against try#4797991aa2efb6d658150f10425b3f3b5d10eceb for pr-143193 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmackoctavian%2Fultimate_rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/mackoctavian/ultimate_rust [INFO] finished tweaking git repo https://github.com/mackoctavian/ultimate_rust [INFO] tweaked toml for git repo https://github.com/mackoctavian/ultimate_rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/mackoctavian/ultimate_rust on toolchain 4797991aa2efb6d658150f10425b3f3b5d10eceb [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/mackoctavian/ultimate_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" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 45859ed5eaf9fdfa6d6df73a02fb28b30cde1f1c204e0ef46be731608f11b31f [INFO] running `Command { std: "docker" "start" "-a" "45859ed5eaf9fdfa6d6df73a02fb28b30cde1f1c204e0ef46be731608f11b31f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "45859ed5eaf9fdfa6d6df73a02fb28b30cde1f1c204e0ef46be731608f11b31f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "45859ed5eaf9fdfa6d6df73a02fb28b30cde1f1c204e0ef46be731608f11b31f", kill_on_drop: false }` [INFO] [stdout] 45859ed5eaf9fdfa6d6df73a02fb28b30cde1f1c204e0ef46be731608f11b31f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4797991aa2efb6d658150f10425b3f3b5d10eceb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ea7ff00fc864c6e69374de11712e8eaa2a7c89145ea3a5de0f66fa0e8470e5f2 [INFO] running `Command { std: "docker" "start" "-a" "ea7ff00fc864c6e69374de11712e8eaa2a7c89145ea3a5de0f66fa0e8470e5f2", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.85 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling autocfg v1.3.0 [INFO] [stderr] Compiling typenum v1.17.0 [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling libc v0.2.155 [INFO] [stderr] Compiling serde v1.0.203 [INFO] [stderr] Checking pin-project-lite v0.2.14 [INFO] [stderr] Compiling serde_json v1.0.117 [INFO] [stderr] Checking ryu v1.0.18 [INFO] [stderr] Checking itoa v1.0.11 [INFO] [stderr] Checking cpufeatures v0.2.12 [INFO] [stderr] Compiling parking_lot_core v0.9.10 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Checking utf8parse v0.2.1 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Checking futures-task v0.3.30 [INFO] [stderr] Checking anstyle-query v1.1.0 [INFO] [stderr] Checking anstyle-parse v0.2.4 [INFO] [stderr] Checking colorchoice v1.0.1 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Checking is_terminal_polyfill v1.70.0 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Checking memchr v2.7.4 [INFO] [stderr] Checking anstyle v1.0.7 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking strsim v0.11.1 [INFO] [stderr] Checking clap_lex v0.7.0 [INFO] [stderr] Compiling heck v0.5.0 [INFO] [stderr] Checking bytes v1.6.1 [INFO] [stderr] Checking once_cell v1.19.0 [INFO] [stderr] Checking ultimate_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking mutexes v0.1.0 (/opt/rustwide/workdir/session2/mutexes) [INFO] [stderr] Checking divide_work v0.1.0 (/opt/rustwide/workdir/session2/divide_work) [INFO] [stderr] Checking closures v0.1.0 (/opt/rustwide/workdir/misc/closures) [INFO] [stderr] Compiling generic-array v0.14.7 [INFO] [stdout] warning: unused import: `atomic::AtomicU32` [INFO] [stdout] --> session2/mutexes/src/main.rs:1:18 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{sync::{atomic::AtomicU32, Mutex}, thread}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static `NO` is never used [INFO] [stdout] --> session2/mutexes/src/main.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | static mut NO: i32 = 0; [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `test_atomics` is never used [INFO] [stdout] --> session2/mutexes/src/main.rs:24:4 [INFO] [stdout] | [INFO] [stdout] 24 | fn test_atomics() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static [INFO] [stdout] --> session2/mutexes/src/main.rs:42:20 [INFO] [stdout] | [INFO] [stdout] 42 | println!("{NO}"); [INFO] [stdout] | ^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> session2/divide_work/src/main.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | for i in 0..5 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking footgun v0.1.0 (/opt/rustwide/workdir/session2/footgun) [INFO] [stdout] warning: unused variable: `sum` [INFO] [stdout] --> session2/divide_work/src/main.rs:97:9 [INFO] [stdout] | [INFO] [stdout] 97 | let sum = thread::scope(|c| { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_sum` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rwlock v0.1.0 (/opt/rustwide/workdir/session2/rwlock) [INFO] [stdout] warning: function `single_thread` is never used [INFO] [stdout] --> session2/divide_work/src/main.rs:39:4 [INFO] [stdout] | [INFO] [stdout] 39 | fn single_thread() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `thread1` is never used [INFO] [stdout] --> session2/divide_work/src/main.rs:45:4 [INFO] [stdout] | [INFO] [stdout] 45 | fn thread1(n: u32) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `multiple_thread` is never used [INFO] [stdout] --> session2/divide_work/src/main.rs:49:4 [INFO] [stdout] | [INFO] [stdout] 49 | fn multiple_thread() { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `my_thread` is never used [INFO] [stdout] --> session2/divide_work/src/main.rs:67:4 [INFO] [stdout] | [INFO] [stdout] 67 | fn my_thread() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `chunk_example` is never used [INFO] [stdout] --> session2/divide_work/src/main.rs:72:4 [INFO] [stdout] | [INFO] [stdout] 72 | fn chunk_example() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `scoped_threads` is never used [INFO] [stdout] --> session2/divide_work/src/main.rs:92:4 [INFO] [stdout] | [INFO] [stdout] 92 | fn scoped_threads() { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking variables v0.1.0 (/opt/rustwide/workdir/session1/variables) [INFO] [stderr] Checking hello_word v0.1.0 (/opt/rustwide/workdir/session1/hello_word) [INFO] [stdout] warning: unused variable: `m` [INFO] [stdout] --> session1/variables/src/main.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let m = m + 1; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_m` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> session1/variables/src/main.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let n = { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> session1/variables/src/main.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | let n = { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling lock_api v0.4.12 [INFO] [stderr] Checking hello v0.1.0 (/opt/rustwide/workdir/session2/hello) [INFO] [stderr] Checking anstream v0.6.14 [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> session2/divide_work/src/main.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | for i in 0..5 { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `sum` [INFO] [stdout] --> session2/divide_work/src/main.rs:97:9 [INFO] [stdout] | [INFO] [stdout] 97 | let sum = thread::scope(|c| { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_sum` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `single_thread` is never used [INFO] [stdout] --> session2/divide_work/src/main.rs:39:4 [INFO] [stdout] | [INFO] [stdout] 39 | fn single_thread() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `thread1` is never used [INFO] [stdout] --> session2/divide_work/src/main.rs:45:4 [INFO] [stdout] | [INFO] [stdout] 45 | fn thread1(n: u32) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `multiple_thread` is never used [INFO] [stdout] --> session2/divide_work/src/main.rs:49:4 [INFO] [stdout] | [INFO] [stdout] 49 | fn multiple_thread() { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `my_thread` is never used [INFO] [stdout] --> session2/divide_work/src/main.rs:67:4 [INFO] [stdout] | [INFO] [stdout] 67 | fn my_thread() { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `chunk_example` is never used [INFO] [stdout] --> session2/divide_work/src/main.rs:72:4 [INFO] [stdout] | [INFO] [stdout] 72 | fn chunk_example() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `scoped_threads` is never used [INFO] [stdout] --> session2/divide_work/src/main.rs:92:4 [INFO] [stdout] | [INFO] [stdout] 92 | fn scoped_threads() { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking functions v0.1.0 (/opt/rustwide/workdir/session1/functions) [INFO] [stdout] warning: unused variable: `m` [INFO] [stdout] --> session1/variables/src/main.rs:10:9 [INFO] [stdout] | [INFO] [stdout] 10 | let m = m + 1; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_m` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> session1/variables/src/main.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let n = { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> session1/variables/src/main.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | let n = { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `hello_thread` is never used [INFO] [stdout] --> session2/hello/src/main.rs:16:4 [INFO] [stdout] | [INFO] [stdout] 16 | 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: unused variable: `n` [INFO] [stdout] --> session1/functions/src/main.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let n = if i == 5 { 6 } else { 7 }; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `double_or_nothing` is never used [INFO] [stdout] --> session1/functions/src/main.rs:5:4 [INFO] [stdout] | [INFO] [stdout] 5 | fn double_or_nothing(n: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `hello_thread` is never used [INFO] [stdout] --> session2/hello/src/main.rs:16:4 [INFO] [stdout] | [INFO] [stdout] 16 | 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: unused import: `atomic::AtomicU32` [INFO] [stdout] --> session2/mutexes/src/main.rs:1:18 [INFO] [stdout] | [INFO] [stdout] 1 | use std::{sync::{atomic::AtomicU32, Mutex}, thread}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> session1/functions/src/main.rs:37:9 [INFO] [stdout] | [INFO] [stdout] 37 | let n = if i == 5 { 6 } else { 7 }; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `double_or_nothing` is never used [INFO] [stdout] --> session1/functions/src/main.rs:5:4 [INFO] [stdout] | [INFO] [stdout] 5 | fn double_or_nothing(n: i32) -> i32 { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stdout] warning: static `NO` is never used [INFO] [stdout] --> session2/mutexes/src/main.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | static mut NO: i32 = 0; [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `test_atomics` is never used [INFO] [stdout] --> session2/mutexes/src/main.rs:24:4 [INFO] [stdout] | [INFO] [stdout] 24 | fn test_atomics() { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static [INFO] [stdout] --> session2/mutexes/src/main.rs:42:20 [INFO] [stdout] | [INFO] [stdout] 42 | println!("{NO}"); [INFO] [stdout] | ^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking clap_builder v4.5.2 [INFO] [stderr] Compiling syn v2.0.66 [INFO] [stderr] Checking socket2 v0.5.7 [INFO] [stderr] Checking signal-hook-registry v1.4.2 [INFO] [stderr] Checking mio v1.0.1 [INFO] [stderr] Checking parking_lot v0.12.3 [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] rustc-LLVM ERROR: IO failure on output stream: No space left on device [INFO] [stderr] error: could not compile `syn` (lib) [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] No space left on device (os error 28) [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] failed to parse process output: `/opt/rustwide/rustup-home/toolchains/4797991aa2efb6d658150f10425b3f3b5d10eceb/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.66/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "test", "visit", "visit-mut"))' -C metadata=dd59a1caf6457c69 -C extra-filename=-5ff7aa54100aabbc --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-0b625c2daaa9603a.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-a253f29cdd71ec93.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-f2de522ba645d884.rmeta --cap-lints allow --cap-lints=forbid` (exit status: 101) [INFO] running `Command { std: "docker" "inspect" "ea7ff00fc864c6e69374de11712e8eaa2a7c89145ea3a5de0f66fa0e8470e5f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ea7ff00fc864c6e69374de11712e8eaa2a7c89145ea3a5de0f66fa0e8470e5f2", kill_on_drop: false }` [INFO] [stdout] ea7ff00fc864c6e69374de11712e8eaa2a7c89145ea3a5de0f66fa0e8470e5f2