[INFO] cloning repository https://github.com/shobhitsundriyal/day_2_threads [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shobhitsundriyal/day_2_threads" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshobhitsundriyal%2Fday_2_threads", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshobhitsundriyal%2Fday_2_threads'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4726498b2bd6d76b2ddd637a42bf6b663bf840b2 [INFO] checking shobhitsundriyal/day_2_threads against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshobhitsundriyal%2Fday_2_threads" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/shobhitsundriyal/day_2_threads [INFO] finished tweaking git repo https://github.com/shobhitsundriyal/day_2_threads [INFO] tweaked toml for git repo https://github.com/shobhitsundriyal/day_2_threads written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/shobhitsundriyal/day_2_threads on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/shobhitsundriyal/day_2_threads 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded unreachable v0.1.1 [INFO] [stderr] Downloaded debug_unreachable v0.1.1 [INFO] [stderr] Downloaded oncemutex v0.1.1 [INFO] [stderr] Downloaded libc v0.2.161 [INFO] [stderr] Downloaded lazy v0.5.3 [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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6dd17104a37a526950036013d89fef2d1c9e04323be6bd321702b358d24d881e [INFO] running `Command { std: "docker" "start" "-a" "6dd17104a37a526950036013d89fef2d1c9e04323be6bd321702b358d24d881e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6dd17104a37a526950036013d89fef2d1c9e04323be6bd321702b358d24d881e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6dd17104a37a526950036013d89fef2d1c9e04323be6bd321702b358d24d881e", kill_on_drop: false }` [INFO] [stdout] 6dd17104a37a526950036013d89fef2d1c9e04323be6bd321702b358d24d881e [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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 98763edbf4aa3b4486d21fac322e2491da794ebb694cfdd636243c2c6eb1ab66 [INFO] running `Command { std: "docker" "start" "-a" "98763edbf4aa3b4486d21fac322e2491da794ebb694cfdd636243c2c6eb1ab66", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.161 [INFO] [stderr] Checking once_cell v1.20.2 [INFO] [stderr] Compiling crossbeam-utils v0.8.20 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking oncemutex v0.1.1 [INFO] [stderr] Checking hello_thread v0.1.0 (/opt/rustwide/workdir/hello_thread) [INFO] [stderr] Checking thread_builder v0.1.0 (/opt/rustwide/workdir/thread_builder) [INFO] [stderr] Checking scoped_threads v0.1.0 (/opt/rustwide/workdir/scoped_threads) [INFO] [stderr] Checking mutexes v0.1.0 (/opt/rustwide/workdir/mutexes) [INFO] [stderr] Checking deadlock v0.1.0 (/opt/rustwide/workdir/deadlock) [INFO] [stderr] Checking channel1 v0.1.0 (/opt/rustwide/workdir/channel1) [INFO] [stderr] Checking atomics v0.1.0 (/opt/rustwide/workdir/atomics) [INFO] [stderr] Checking day_2_threads v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking workers v0.1.0 (/opt/rustwide/workdir/workers) [INFO] [stderr] Checking unreachable v0.1.1 [INFO] [stderr] Checking sum_the_vector v0.1.0 (/opt/rustwide/workdir/sum_the_vector) [INFO] [stdout] warning: function `hello_thread` is never used [INFO] [stdout] --> hello_thread/src/main.rs:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn hello_thread(n: i32) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking debug_unreachable v0.1.1 [INFO] [stdout] warning: function `hello_thread` is never used [INFO] [stdout] --> hello_thread/src/main.rs:3:4 [INFO] [stdout] | [INFO] [stdout] 3 | fn hello_thread(n: i32) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking lazy v0.5.3 [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/lazy-0.5.3/src/lib.rs:2:47 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(core, std_misc, unsafe_destructor, optin_builtin_traits)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ feature has been removed [INFO] [stdout] | [INFO] [stdout] = note: removed in 1.50.0; see for more information [INFO] [stdout] = note: renamed to `auto_traits` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0432]: unresolved import `std::thunk` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/lazy-0.5.3/src/single.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | use std::thunk::Invoke; [INFO] [stdout] | ^^^^^ could not find `thunk` in `std` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking read_write_locks v0.1.0 (/opt/rustwide/workdir/read_write_locks) [INFO] [stdout] error[E0432]: unresolved import `std::thunk` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/lazy-0.5.3/src/sync.rs:4:10 [INFO] [stdout] | [INFO] [stdout] 4 | use std::thunk::Invoke; [INFO] [stdout] | ^^^^^ could not find `thunk` in `std` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find function `copy_lifetime` in module `mem` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/lazy-0.5.3/src/sync.rs:103:49 [INFO] [stdout] | [INFO] [stdout] 103 | Evaluated(ref val) => unsafe { mem::copy_lifetime(self, val) }, [INFO] [stdout] | ^^^^^^^^^^^^^ not found in `mem` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static variable `Users` should have an upper case name [INFO] [stdout] --> read_write_locks/src/main.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | static Users: Lazy>> = Lazy::new(|| RwLock::new(build_users())); [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stdout] help: convert the identifier to upper case [INFO] [stdout] | [INFO] [stdout] 4 - static Users: Lazy>> = Lazy::new(|| RwLock::new(build_users())); [INFO] [stdout] 4 + static USERS: Lazy>> = Lazy::new(|| RwLock::new(build_users())); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: negative trait bounds are not fully implemented; use marker types for now [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/lazy-0.5.3/src/single.rs:16:9 [INFO] [stdout] | [INFO] [stdout] 16 | impl !Sync for Thunk {} [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #68318 for more information [INFO] [stdout] = help: add `#![feature(negative_impls)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-06-28; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static variable `Users` should have an upper case name [INFO] [stdout] --> read_write_locks/src/main.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | static Users: Lazy>> = Lazy::new(|| RwLock::new(build_users())); [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stdout] help: convert the identifier to upper case [INFO] [stdout] | [INFO] [stdout] 4 - static Users: Lazy>> = Lazy::new(|| RwLock::new(build_users())); [INFO] [stdout] 4 + static USERS: Lazy>> = Lazy::new(|| RwLock::new(build_users())); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0635]: unknown feature `unsafe_destructor` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/lazy-0.5.3/src/lib.rs:2:28 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(core, std_misc, unsafe_destructor, optin_builtin_traits)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0635]: unknown feature `std_misc` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/lazy-0.5.3/src/lib.rs:2:18 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(core, std_misc, unsafe_destructor, optin_builtin_traits)] [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0425, E0432, E0557, E0635, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0425`. [INFO] [stdout] [INFO] [stderr] error: could not compile `lazy` (lib) due to 7 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "98763edbf4aa3b4486d21fac322e2491da794ebb694cfdd636243c2c6eb1ab66", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "98763edbf4aa3b4486d21fac322e2491da794ebb694cfdd636243c2c6eb1ab66", kill_on_drop: false }` [INFO] [stdout] 98763edbf4aa3b4486d21fac322e2491da794ebb694cfdd636243c2c6eb1ab66