[INFO] cloning repository https://github.com/mtelahun/Rust_Atomics_and_Locks_by_Mara_Bos
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mtelahun/Rust_Atomics_and_Locks_by_Mara_Bos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtelahun%2FRust_Atomics_and_Locks_by_Mara_Bos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtelahun%2FRust_Atomics_and_Locks_by_Mara_Bos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 48457f3ccabaee7c1ccd038f44c9b358d9ffc972
[INFO] checking mtelahun/Rust_Atomics_and_Locks_by_Mara_Bos against master#82310651b93a594a3fd69015e1562186a080d94c for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmtelahun%2FRust_Atomics_and_Locks_by_Mara_Bos" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mtelahun/Rust_Atomics_and_Locks_by_Mara_Bos
[INFO] finished tweaking git repo https://github.com/mtelahun/Rust_Atomics_and_Locks_by_Mara_Bos
[INFO] tweaked toml for git repo https://github.com/mtelahun/Rust_Atomics_and_Locks_by_Mara_Bos written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mtelahun/Rust_Atomics_and_Locks_by_Mara_Bos on toolchain 82310651b93a594a3fd69015e1562186a080d94c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mtelahun/Rust_Atomics_and_Locks_by_Mara_Bos 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" "+82310651b93a594a3fd69015e1562186a080d94c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded value-bag v1.4.2
[INFO] [stderr]   Downloaded futures-lite v2.1.0
[INFO] [stderr]   Downloaded event-listener v4.0.1
[INFO] [stderr]   Downloaded async-task v4.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff269cc396cdbb7d19f1a507c44893e66af2466b017cef0dd157175ea67b3a02
[INFO] running `Command { std: "docker" "start" "-a" "ff269cc396cdbb7d19f1a507c44893e66af2466b017cef0dd157175ea67b3a02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff269cc396cdbb7d19f1a507c44893e66af2466b017cef0dd157175ea67b3a02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff269cc396cdbb7d19f1a507c44893e66af2466b017cef0dd157175ea67b3a02", kill_on_drop: false }`
[INFO] [stdout] ff269cc396cdbb7d19f1a507c44893e66af2466b017cef0dd157175ea67b3a02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+82310651b93a594a3fd69015e1562186a080d94c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7942edc3c6a6134f706e0e1a1f24b1598c0ea21cc9d031bce7ecc4280824ecb9
[INFO] running `Command { std: "docker" "start" "-a" "7942edc3c6a6134f706e0e1a1f24b1598c0ea21cc9d031bce7ecc4280824ecb9", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]    Compiling crossbeam-utils v0.8.18
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]     Checking fastrand v2.0.1
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling proc-macro2 v1.0.71
[INFO] [stderr]     Checking value-bag v1.4.2
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]     Checking linux-raw-sys v0.4.12
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking atomic-waker v1.1.2
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]     Checking async-task v4.6.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking waker-fn v1.1.1
[INFO] [stderr]     Checking futures-lite v2.1.0
[INFO] [stderr]     Checking piper v0.2.1
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking async-lock v2.8.0
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking ch06_arc v0.1.0 (/opt/rustwide/workdir/ch06_arc)
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]     Checking ch05_unsafe_oneshot_channel v0.1.0 (/opt/rustwide/workdir/ch05_unsafe_oneshot_channel)
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking ch03_mutex v0.1.0 (/opt/rustwide/workdir/ch03_mutex)
[INFO] [stderr]     Checking atomics-01-thread v0.1.0 (/opt/rustwide/workdir/01_thread)
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]  --> ch03_mutex/src/main.rs:8:18
[INFO] [stdout]   |
[INFO] [stdout] 8 |         unsafe { DATA.push('!') };
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]   |
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]   = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]   = note: `#[warn(static_mut_refs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ch04_spinlock v0.1.0 (/opt/rustwide/workdir/ch04_spinlock)
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> ch04_spinlock/src/main.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn lock(&self) -> Guard<T> {
[INFO] [stdout]    |                 ^^^^^     -------- the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn lock(&self) -> Guard<'_, T> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ch03_release_acquire_ordering v0.1.0 (/opt/rustwide/workdir/ch03_release_acquire_ordering)
[INFO] [stdout] warning: creating a mutable reference to mutable static
[INFO] [stdout]  --> ch03_mutex/src/main.rs:8:18
[INFO] [stdout]   |
[INFO] [stdout] 8 |         unsafe { DATA.push('!') };
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^ mutable reference to mutable static
[INFO] [stdout]   |
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]   = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives
[INFO] [stdout]   = note: `#[warn(static_mut_refs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking ch03_out_of_thin_air_values v0.1.0 (/opt/rustwide/workdir/ch03_out_of_thin_air_values)
[INFO] [stderr]     Checking ch01_rc_arc v0.1.0 (/opt/rustwide/workdir/ch01_rc_arc)
[INFO] [stderr]     Checking ch02_progress v0.1.0 (/opt/rustwide/workdir/ch02_progress)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> ch04_spinlock/src/main.rs:22:17
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn lock(&self) -> Guard<T> {
[INFO] [stdout]    |                 ^^^^^     -------- the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 22 |     pub fn lock(&self) -> Guard<'_, T> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking ch01_scoped_thread v0.1.0 (/opt/rustwide/workdir/ch01_scoped_thread)
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]     Checking event-listener v4.0.1
[INFO] [stderr]     Checking async-channel v1.9.0
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking event-listener-strategy v0.4.0
[INFO] [stderr]     Checking async-lock v3.2.0
[INFO] [stderr]     Checking async-channel v2.1.1
[INFO] [stderr]     Checking blocking v1.5.1
[INFO] [stderr]     Checking async-executor v1.8.0
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]     Checking polling v3.3.1
[INFO] [stderr]     Checking async-io v2.2.2
[INFO] [stderr]     Checking async-global-executor v2.4.1
[INFO] [stderr]     Checking async-std v1.12.0
[INFO] [stderr]     Checking ch05_simple_channel v0.1.0 (/opt/rustwide/workdir/ch05_simple_channel)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.72s
[INFO] running `Command { std: "docker" "inspect" "7942edc3c6a6134f706e0e1a1f24b1598c0ea21cc9d031bce7ecc4280824ecb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7942edc3c6a6134f706e0e1a1f24b1598c0ea21cc9d031bce7ecc4280824ecb9", kill_on_drop: false }`
[INFO] [stdout] 7942edc3c6a6134f706e0e1a1f24b1598c0ea21cc9d031bce7ecc4280824ecb9
