[INFO] fetching crate subgraph-matching 0.0.4...
[INFO] testing subgraph-matching-0.0.4 against 1.90.0 for beta-1.91-3
[INFO] extracting crate subgraph-matching 0.0.4 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate subgraph-matching 0.0.4
[INFO] finished tweaking crates.io crate subgraph-matching 0.0.4
[INFO] tweaked toml for crates.io crate subgraph-matching 0.0.4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate subgraph-matching 0.0.4 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 95 packages to latest compatible versions
[INFO] [stderr]       Adding atoi v0.4.0 (available: v2.0.0)
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.7.0)
[INFO] [stderr]       Adding delegate v0.6.2 (available: v0.13.4)
[INFO] [stderr]       Adding graph v0.1.15 (available: v0.3.1)
[INFO] [stderr]       Adding pico-args v0.4.2 (available: v0.5.0)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atoi v0.4.0
[INFO] [stderr]   Downloaded linereader v0.4.0
[INFO] [stderr]   Downloaded delegate v0.6.2
[INFO] [stderr]   Downloaded page_size v0.4.2
[INFO] [stderr]   Downloaded graph v0.1.15
[INFO] [stderr]   Downloaded pico-args v0.4.2
[INFO] [stderr]   Downloaded graph_builder v0.1.13
[INFO] [stderr]   Downloaded gdl v0.2.7
[INFO] [stderr]   Downloaded atomic_float v0.1.0
[INFO] [stderr]   Downloaded float-ord v0.3.2
[INFO] [stderr]   Downloaded fast-float v0.2.0
[INFO] [stderr]   Downloaded trim-margin v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d81afe0dcb0ec2c094ee8b7297abafd4632dfad3d699c16e3adfd13e27847d5
[INFO] running `Command { std: "docker" "start" "-a" "2d81afe0dcb0ec2c094ee8b7297abafd4632dfad3d699c16e3adfd13e27847d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d81afe0dcb0ec2c094ee8b7297abafd4632dfad3d699c16e3adfd13e27847d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d81afe0dcb0ec2c094ee8b7297abafd4632dfad3d699c16e3adfd13e27847d5", kill_on_drop: false }`
[INFO] [stdout] 2d81afe0dcb0ec2c094ee8b7297abafd4632dfad3d699c16e3adfd13e27847d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50aafea71e30559217f740bbfb1e6ae1bbcfe4e6ecf39c32b2f8c038f3400efe
[INFO] running `Command { std: "docker" "start" "-a" "50aafea71e30559217f740bbfb1e6ae1bbcfe4e6ecf39c32b2f8c038f3400efe", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling num-format v0.4.4
[INFO] [stderr]    Compiling linereader v0.4.0
[INFO] [stderr]    Compiling fast-float v0.2.0
[INFO] [stderr]    Compiling byte-slice-cast v1.2.3
[INFO] [stderr]    Compiling float-ord v0.3.2
[INFO] [stderr]    Compiling atomic_float v0.1.0
[INFO] [stderr]    Compiling pico-args v0.4.2
[INFO] [stderr]    Compiling page_size v0.4.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling atoi v0.4.0
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling gdl v0.2.7
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling delegate v0.6.2
[INFO] [stderr]    Compiling graph_builder v0.1.13
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/graph_builder-0.1.13/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(slice_partition_dedup)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/graph_builder-0.1.13/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(vec_spare_capacity)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/graph_builder-0.1.13/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(maybe_uninit_write_slice)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/graph_builder-0.1.13/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(maybe_uninit_slice)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/graph_builder-0.1.13/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(step_trait)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/graph_builder-0.1.13/src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(new_uninit)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/graph_builder-0.1.13/src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(doc_cfg)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `write_slice` found for union `MaybeUninit` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/graph_builder-0.1.13/src/graph/csr.rs:897:26
[INFO] [stdout]     |
[INFO] [stdout] 897 |             MaybeUninit::write_slice(new_slice, &old_slice[..new_slice.len()]);
[INFO] [stdout]     |                          ^^^^^^^^^^^ function or associated item not found in `MaybeUninit<_>`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `MaybeUninit<_>` consider using one of the following associated functions:
[INFO] [stdout]       MaybeUninit::<T>::new
[INFO] [stdout]       MaybeUninit::<T>::uninit
[INFO] [stdout]       MaybeUninit::<T>::zeroed
[INFO] [stdout]    --> /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/mem/maybe_uninit.rs:307:5
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `graph_builder` (lib) due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "50aafea71e30559217f740bbfb1e6ae1bbcfe4e6ecf39c32b2f8c038f3400efe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50aafea71e30559217f740bbfb1e6ae1bbcfe4e6ecf39c32b2f8c038f3400efe", kill_on_drop: false }`
[INFO] [stdout] 50aafea71e30559217f740bbfb1e6ae1bbcfe4e6ecf39c32b2f8c038f3400efe
