[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] testing yvt/Stella2 against beta-2021-08-01 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyvt%2FStella2" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yvt/Stella2 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0/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-0/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" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/yvt/rust-rob`
[INFO] [stderr]     Updating git repository `https://github.com/servo/pathfinder.git`
[INFO] [stderr]     Updating git repository `https://github.com/yvt/momo.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded png v0.13.2
[INFO] [stderr]   Downloaded cairo-rs v0.8.1
[INFO] [stderr]   Downloaded lipsum v0.6.0
[INFO] [stderr]   Downloaded kurbo v0.5.11
[INFO] [stderr]   Downloaded libflate v1.0.0
[INFO] [stderr]   Downloaded usvg v0.9.0
[INFO] [stderr]   Downloaded iota v0.2.1
[INFO] [stderr]   Downloaded try_match_inner v0.2.0
[INFO] [stderr]   Downloaded rgb v0.8.17
[INFO] [stderr]   Downloaded pathfinding v2.0.4
[INFO] [stderr]   Downloaded try_match v0.2.2
[INFO] [stderr]   Downloaded gio v0.8.1
[INFO] [stderr]   Downloaded tinytemplate v1.0.4
[INFO] [stderr]   Downloaded enum-utils-from-str v0.1.2
[INFO] [stderr]   Downloaded codemap v0.1.3
[INFO] [stderr]   Downloaded ico v0.1.0
[INFO] [stderr]   Downloaded nsvg v0.5.1
[INFO] [stderr]   Downloaded gtk v0.8.1
[INFO] [stderr]   Downloaded icns v0.3.0
[INFO] [stderr]   Downloaded xmlparser v0.13.1
[INFO] [stderr]   Downloaded embed-resource v1.3.3
[INFO] [stderr]   Downloaded erasable v1.2.1
[INFO] [stderr]   Downloaded gdk v0.12.1
[INFO] [stderr]   Downloaded oorandom v11.1.1
[INFO] [stderr]   Downloaded roxmltree v0.9.1
[INFO] [stderr]   Downloaded displaydoc v0.1.6
[INFO] [stderr]   Downloaded enum-utils v0.1.2
[INFO] [stderr]   Downloaded svgbobdoc v0.2.2
[INFO] [stderr]   Downloaded windebug_logger v0.1.4
[INFO] [stderr]   Downloaded mini-internal v0.1.12
[INFO] [stderr]   Downloaded tokenlock v0.3.0
[INFO] [stderr]   Downloaded flags-macro v0.1.4
[INFO] [stderr]   Downloaded rc-borrow v1.3.0
[INFO] [stderr]   Downloaded arg_enum_proc_macro v0.3.0
[INFO] [stderr]   Downloaded miniserde v0.1.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50bb971cd05d09b9106987ee9d392d0476c4e8df5b12f49b7f31a94ab01ea056
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "50bb971cd05d09b9106987ee9d392d0476c4e8df5b12f49b7f31a94ab01ea056", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50bb971cd05d09b9106987ee9d392d0476c4e8df5b12f49b7f31a94ab01ea056", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50bb971cd05d09b9106987ee9d392d0476c4e8df5b12f49b7f31a94ab01ea056", kill_on_drop: false }`
[INFO] [stdout] 50bb971cd05d09b9106987ee9d392d0476c4e8df5b12f49b7f31a94ab01ea056
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3efbc89841ca6b60ef5b92074b951ff324f65994e43023fdc1bf509a491878a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f3efbc89841ca6b60ef5b92074b951ff324f65994e43023fdc1bf509a491878a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]    Compiling codemap v0.1.3
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling gio v0.8.1
[INFO] [stderr]    Compiling gimli v0.21.0
[INFO] [stderr]    Compiling pango v0.8.0
[INFO] [stderr]    Compiling cairo-rs v0.8.1
[INFO] [stderr]    Compiling packed_simd v0.3.3
[INFO] [stderr]    Compiling rgb v0.8.17
[INFO] [stderr]    Compiling gdk-pixbuf v0.8.0
[INFO] [stderr]    Compiling object v0.19.0
[INFO] [stderr]    Compiling gdk v0.12.1
[INFO] [stderr]    Compiling atk v0.8.0
[INFO] [stderr]    Compiling svg v0.5.12
[INFO] [stderr]    Compiling gtk v0.8.1
[INFO] [stderr]    Compiling pom v1.1.0
[INFO] [stderr]    Compiling pangocairo v0.9.0
[INFO] [stderr]    Compiling array_intrusive_list v0.1.0 (/opt/rustwide/workdir/support/array_intrusive_list)
[INFO] [stderr]    Compiling tokenlock v0.3.0
[INFO] [stderr]    Compiling flags-macro v0.1.4
[INFO] [stderr]    Compiling iota v0.2.1
[INFO] [stderr]    Compiling array v0.0.1
[INFO] [stderr]    Compiling atom2 v0.1.0 (/opt/rustwide/workdir/support/atom2)
[INFO] [stderr]    Compiling neo_linked_list v0.1.0 (/opt/rustwide/workdir/support/neo_linked_list)
[INFO] [stderr]    Compiling fragile v1.0.0
[INFO] [stderr]    Compiling minisort v0.1.0 (/opt/rustwide/workdir/support/minisort)
[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] [stderr]    Compiling xmlparser v0.13.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta 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] [stderr]    Compiling xmlwriter v0.1.0
[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] [stderr]    Compiling rctree v0.3.3
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[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 compile `atom2` due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta 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: 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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f3efbc89841ca6b60ef5b92074b951ff324f65994e43023fdc1bf509a491878a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3efbc89841ca6b60ef5b92074b951ff324f65994e43023fdc1bf509a491878a", kill_on_drop: false }`
[INFO] [stdout] f3efbc89841ca6b60ef5b92074b951ff324f65994e43023fdc1bf509a491878a
