[INFO] fetching crate stele 0.3.4...
[INFO] testing stele-0.3.4 against 1.75.0 for beta-1.76-1
[INFO] extracting crate stele 0.3.4 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate stele 0.3.4 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stele 0.3.4
[INFO] finished tweaking crates.io crate stele 0.3.4
[INFO] tweaked toml for crates.io crate stele 0.3.4 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64c2c91c18596d63cea74581722b9a636be92e36930c3dd653bcb6f408bcb777
[INFO] running `Command { std: "docker" "start" "-a" "64c2c91c18596d63cea74581722b9a636be92e36930c3dd653bcb6f408bcb777", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64c2c91c18596d63cea74581722b9a636be92e36930c3dd653bcb6f408bcb777", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64c2c91c18596d63cea74581722b9a636be92e36930c3dd653bcb6f408bcb777", kill_on_drop: false }`
[INFO] [stdout] 64c2c91c18596d63cea74581722b9a636be92e36930c3dd653bcb6f408bcb777
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd5613739ceea7895988a373b00cd7ffde742df52bcf9c5a86e461ca102e71ae
[INFO] running `Command { std: "docker" "start" "-a" "cd5613739ceea7895988a373b00cd7ffde742df52bcf9c5a86e461ca102e71ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling stele v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `fence`
[INFO] [stdout]  --> src/sync.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use core::sync::atomic::{fence, AtomicPtr, AtomicUsize};
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "cd5613739ceea7895988a373b00cd7ffde742df52bcf9c5a86e461ca102e71ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd5613739ceea7895988a373b00cd7ffde742df52bcf9c5a86e461ca102e71ae", kill_on_drop: false }`
[INFO] [stdout] cd5613739ceea7895988a373b00cd7ffde742df52bcf9c5a86e461ca102e71ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc7f844e08ab297ef27e8b9415d038234304bfae0b34358f93a901ba33506b27
[INFO] running `Command { std: "docker" "start" "-a" "bc7f844e08ab297ef27e8b9415d038234304bfae0b34358f93a901ba33506b27", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `fence`
[INFO] [stdout]  --> src/sync.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use core::sync::atomic::{fence, AtomicPtr, AtomicUsize};
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling stele v0.3.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fence`
[INFO] [stdout]  --> src/sync.rs:4:30
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub use core::sync::atomic::{fence, AtomicPtr, AtomicUsize};
[INFO] [stdout]   |                              ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "bc7f844e08ab297ef27e8b9415d038234304bfae0b34358f93a901ba33506b27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc7f844e08ab297ef27e8b9415d038234304bfae0b34358f93a901ba33506b27", kill_on_drop: false }`
[INFO] [stdout] bc7f844e08ab297ef27e8b9415d038234304bfae0b34358f93a901ba33506b27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e163573401e2e5b33ad5a30493682b7bfbeecae991a6764bc2ff1c5cd359d72c
[INFO] running `Command { std: "docker" "start" "-a" "e163573401e2e5b33ad5a30493682b7bfbeecae991a6764bc2ff1c5cd359d72c", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `fence`
[INFO] [stderr]  --> src/sync.rs:4:30
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub use core::sync::atomic::{fence, AtomicPtr, AtomicUsize};
[INFO] [stderr]   |                              ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `stele` (lib) generated 1 warning (run `cargo fix --lib -p stele` to apply 1 suggestion)
[INFO] [stderr] warning: `stele` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stele-33ad20d22c23c23c)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test mem::without_allocator::allocation ... ok
[INFO] [stdout] test append::reader::tests::reads ... ok
[INFO] [stdout] test test::iterator ... ok
[INFO] [stdout] test test::copy_iterator ... ok
[INFO] [stdout] test test::getcopy ... ok
[INFO] [stdout] test test::write_zst ... ok
[INFO] [stdout] test test::write_test ... ok
[INFO] [stdout] test test::read_through_writer ... ok
[INFO] [stderr]    Doc-tests stele
[INFO] [stdout] test test::never_writes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:9:18
[INFO] [stderr]   |
[INFO] [stderr] 9 | #![cfg_attr(doc, feature(doc_cfg))]
[INFO] [stderr]   |                  ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2018 --crate-type lib --crate-name stele --test src/lib.rs --test-run-directory /opt/rustwide/workdir -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern stele=/opt/rustwide/target/debug/deps/libstele-80a20c0651d85ce5.rlib -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="std"' --cap-lints=warn --error-format human` (exit status: 1)
[INFO] [stderr] note: test exited abnormally; to see the full output pass --nocapture to the harness.
[INFO] running `Command { std: "docker" "inspect" "e163573401e2e5b33ad5a30493682b7bfbeecae991a6764bc2ff1c5cd359d72c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e163573401e2e5b33ad5a30493682b7bfbeecae991a6764bc2ff1c5cd359d72c", kill_on_drop: false }`
[INFO] [stdout] e163573401e2e5b33ad5a30493682b7bfbeecae991a6764bc2ff1c5cd359d72c
