[INFO] fetching crate fibers 0.1.13... [INFO] checking fibers-0.1.13 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1 [INFO] extracting crate fibers 0.1.13 into /workspace/builds/worker-6-tc1/source [INFO] started tweaking crates.io crate fibers 0.1.13 [INFO] finished tweaking crates.io crate fibers 0.1.13 [INFO] tweaked toml for crates.io crate fibers 0.1.13 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate fibers 0.1.13 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate fibers 0.1.13 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded splay_tree v0.2.10 [INFO] [stderr] Downloaded nbchan v0.1.3 [INFO] [stderr] Downloaded handy_async v0.2.13 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c8c1990c65d7eff196daf42c8b92ee0cdb1448d8eaa7c145a13932ae29c495cb [INFO] running `Command { std: "docker" "start" "-a" "c8c1990c65d7eff196daf42c8b92ee0cdb1448d8eaa7c145a13932ae29c495cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c8c1990c65d7eff196daf42c8b92ee0cdb1448d8eaa7c145a13932ae29c495cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c8c1990c65d7eff196daf42c8b92ee0cdb1448d8eaa7c145a13932ae29c495cb", kill_on_drop: false }` [INFO] [stdout] c8c1990c65d7eff196daf42c8b92ee0cdb1448d8eaa7c145a13932ae29c495cb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] de5a691d7558fe7cfc1d9d4ca8cb299050571c132dad91872edbc40302e9c920 [INFO] running `Command { std: "docker" "start" "-a" "de5a691d7558fe7cfc1d9d4ca8cb299050571c132dad91872edbc40302e9c920", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking futures v0.1.29 [INFO] [stderr] Checking unicode-width v0.1.6 [INFO] [stderr] Compiling httparse v1.3.4 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking splay_tree v0.2.10 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking nbchan v0.1.3 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking num_cpus v1.11.1 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Checking handy_async v0.2.13 [INFO] [stderr] Checking fibers v0.1.13 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `pollers` is never read [INFO] [stdout] --> src/executor/thread_pool.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 46 | pub struct ThreadPoolExecutor { [INFO] [stdout] | ------------------ field in this struct [INFO] [stdout] 47 | pool: SchedulerPool, [INFO] [stdout] 48 | pollers: PollerPool, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ThreadPoolExecutor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `links` is never read [INFO] [stdout] --> src/executor/thread_pool.rs:144:5 [INFO] [stdout] | [INFO] [stdout] 142 | struct PollerPool { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 143 | pollers: Vec, [INFO] [stdout] 144 | links: Vec>, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `PollerPool` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static [INFO] [stdout] --> src/fiber/schedule.rs:54:36 [INFO] [stdout] | [INFO] [stdout] 54 | scheduler_id: unsafe { NEXT_SCHEDULER_ID.fetch_add(1, atomic::Ordering::SeqCst) }, [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: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/fiber/schedule.rs:324:23 [INFO] [stdout] | [INFO] [stdout] 324 | pub fn as_context(&mut self) -> Option { [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] 324 | pub fn as_context(&mut self) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/io/poll/mod.rs:33:17 [INFO] [stdout] | [INFO] [stdout] 33 | pub fn lock(&self) -> EventedLock { [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] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 33 | pub fn lock(&self) -> EventedLock<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/io/poll/poller.rs:374:18 [INFO] [stdout] | [INFO] [stdout] 374 | pub fn inner(&self) -> EventedLock { [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] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 374 | pub fn inner(&self) -> EventedLock<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/sync_atomic.rs:20:27 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn try_borrow_mut(&self) -> Option> { [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] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 20 | pub fn try_borrow_mut(&self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/sync_atomic.rs:29:23 [INFO] [stdout] | [INFO] [stdout] 29 | pub fn try_borrow(&self) -> Option> { [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] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 29 | pub fn try_borrow(&self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `pollers` is never read [INFO] [stdout] --> src/executor/thread_pool.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 46 | pub struct ThreadPoolExecutor { [INFO] [stdout] | ------------------ field in this struct [INFO] [stdout] 47 | pool: SchedulerPool, [INFO] [stdout] 48 | pollers: PollerPool, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ThreadPoolExecutor` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `links` is never read [INFO] [stdout] --> src/executor/thread_pool.rs:144:5 [INFO] [stdout] | [INFO] [stdout] 142 | struct PollerPool { [INFO] [stdout] | ---------- field in this struct [INFO] [stdout] 143 | pollers: Vec, [INFO] [stdout] 144 | links: Vec>, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `PollerPool` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static [INFO] [stdout] --> src/fiber/schedule.rs:54:36 [INFO] [stdout] | [INFO] [stdout] 54 | scheduler_id: unsafe { NEXT_SCHEDULER_ID.fetch_add(1, atomic::Ordering::SeqCst) }, [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: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/fiber/schedule.rs:324:23 [INFO] [stdout] | [INFO] [stdout] 324 | pub fn as_context(&mut self) -> Option { [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] 324 | pub fn as_context(&mut self) -> Option> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/io/poll/mod.rs:33:17 [INFO] [stdout] | [INFO] [stdout] 33 | pub fn lock(&self) -> EventedLock { [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] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 33 | pub fn lock(&self) -> EventedLock<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/io/poll/poller.rs:374:18 [INFO] [stdout] | [INFO] [stdout] 374 | pub fn inner(&self) -> EventedLock { [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] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 374 | pub fn inner(&self) -> EventedLock<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/sync_atomic.rs:20:27 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn try_borrow_mut(&self) -> Option> { [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] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 20 | pub fn try_borrow_mut(&self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/sync_atomic.rs:29:23 [INFO] [stdout] | [INFO] [stdout] 29 | pub fn try_borrow(&self) -> Option> { [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] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 29 | pub fn try_borrow(&self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.55s [INFO] running `Command { std: "docker" "inspect" "de5a691d7558fe7cfc1d9d4ca8cb299050571c132dad91872edbc40302e9c920", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de5a691d7558fe7cfc1d9d4ca8cb299050571c132dad91872edbc40302e9c920", kill_on_drop: false }` [INFO] [stdout] de5a691d7558fe7cfc1d9d4ca8cb299050571c132dad91872edbc40302e9c920