[INFO] cloning repository https://github.com/yvt/Stella2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yvt/Stella2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyvt%2FStella2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyvt%2FStella2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 79bb01d5d11643c50769986796b6fae572e13db7
[INFO] documenting yvt/Stella2 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyvt%2FStella2" "/workspace/builds/worker-96/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-96/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yvt/Stella2 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-96/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/yvt/Stella2
[INFO] finished tweaking git repo https://github.com/yvt/Stella2
[INFO] tweaked toml for git repo https://github.com/yvt/Stella2 written to /workspace/builds/worker-96/source/Cargo.toml
[INFO] crate git repo https://github.com/yvt/Stella2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d88220bc7b9f68b167cc007aa9b680074cc33c59c672674a19ee5959499418d
[INFO] running `Command { std: "docker" "start" "-a" "0d88220bc7b9f68b167cc007aa9b680074cc33c59c672674a19ee5959499418d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d88220bc7b9f68b167cc007aa9b680074cc33c59c672674a19ee5959499418d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d88220bc7b9f68b167cc007aa9b680074cc33c59c672674a19ee5959499418d", kill_on_drop: false }`
[INFO] [stdout] 0d88220bc7b9f68b167cc007aa9b680074cc33c59c672674a19ee5959499418d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4760cbc4897491526aef5b893876c437acaa34efb3dd91105634d83bf30e25ba
[INFO] running `Command { std: "docker" "start" "-a" "4760cbc4897491526aef5b893876c437acaa34efb3dd91105634d83bf30e25ba", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking futures-core v0.3.5
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[INFO] [stderr]    Compiling adler32 v1.0.4
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[INFO] [stderr]     Checking array_intrusive_list v0.1.0 (/opt/rustwide/workdir/support/array_intrusive_list)
[INFO] [stderr]    Compiling either v1.5.3
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[INFO] [stderr]    Compiling rayon-core v1.7.0
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[INFO] [stderr]    Compiling gtk v0.8.1
[INFO] [stderr]    Compiling svg v0.5.12
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling pom v1.1.0
[INFO] [stderr]    Compiling pangocairo v0.9.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling base64 v0.12.1
[INFO] [stderr]     Checking fragile v1.0.0
[INFO] [stderr]     Checking minisort v0.1.0 (/opt/rustwide/workdir/support/minisort)
[INFO] [stderr]     Checking iota v0.2.1
[INFO] [stderr]     Checking flags-macro v0.1.4
[INFO] [stderr]     Checking atom2 v0.1.0 (/opt/rustwide/workdir/support/atom2)
[INFO] [stderr]     Checking neo_linked_list v0.1.0 (/opt/rustwide/workdir/support/neo_linked_list)
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[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling float-cmp v0.5.3
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling xmlparser v0.13.1
[INFO] [stderr]    Compiling xmlwriter v0.1.0
[INFO] [stderr]    Compiling rctree v0.3.3
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[INFO] [stderr]    Compiling base64 v0.11.0
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[INFO] [stderr]     Checking rawpointer v0.2.1
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[INFO] [stderr]     Checking boxed_slice_tools v0.1.0 (/opt/rustwide/workdir/support/boxed_slice_tools)
[INFO] [stderr]     Checking rob v0.1.0 (https://github.com/yvt/rust-rob?rev=c2d723c6c2672914c6d8ac9d0d3cc80b5d99cbb9#c2d723c6)
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[INFO] [stderr]    Compiling embed-resource v1.3.3
[INFO] [stderr]     Checking enclose v1.1.8
[INFO] [stderr]  Documenting demotools v0.1.0 (/opt/rustwide/workdir/support/demotools)
[INFO] [stderr]  Documenting as_any v0.1.0 (/opt/rustwide/workdir/support/as_any)
[INFO] [stderr]  Documenting array_intrusive_list v0.1.0 (/opt/rustwide/workdir/support/array_intrusive_list)
[INFO] [stderr]  Documenting neo_linked_list v0.1.0 (/opt/rustwide/workdir/support/neo_linked_list)
[INFO] [stderr]  Documenting atom2 v0.1.0 (/opt/rustwide/workdir/support/atom2)
[INFO] [stderr]  Documenting sorted_diff v0.1.0 (/opt/rustwide/workdir/support/sorted_diff)
[INFO] [stderr]  Documenting minisort v0.1.0 (/opt/rustwide/workdir/support/minisort)
[INFO] [stderr]  Documenting boxed_slice_tools v0.1.0 (/opt/rustwide/workdir/support/boxed_slice_tools)
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking data-url v0.1.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> support/atom2/src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(const_fn)] // `const fn` with a constrained type parameter (e.g., `T: PtrSized`)
[INFO] [stdout]   |            ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> support/atom2/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(const_fn)] // `const fn` with a constrained type parameter (e.g., `T: PtrSized`)
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `atom2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name atom2 support/atom2/src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="winrt"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> support/minisort/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> support/atom2/src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(const_fn)] // `const fn` with a constrained type parameter (e.g., `T: PtrSized`)
[INFO] [stdout]   |            ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> support/atom2/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(const_fn)] // `const fn` with a constrained type parameter (e.g., `T: PtrSized`)
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> support/minisort/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicPtr::<T>::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> support/atom2/src/lib.rs:233:14
[INFO] [stdout]     |
[INFO] [stdout] 233 |             .compare_and_swap(current_ptr as *mut (), new_ptr as *mut (), order);
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> support/minisort/src/lib.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(specialization)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4760cbc4897491526aef5b893876c437acaa34efb3dd91105634d83bf30e25ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4760cbc4897491526aef5b893876c437acaa34efb3dd91105634d83bf30e25ba", kill_on_drop: false }`
[INFO] [stdout] 4760cbc4897491526aef5b893876c437acaa34efb3dd91105634d83bf30e25ba
