[INFO] fetching crate r3_port_std 0.2.1...
[INFO] documenting r3_port_std-0.2.1 against 1.69.0 for beta-1.70-rustdoc-1
[INFO] extracting crate r3_port_std 0.2.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate r3_port_std 0.2.1 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate r3_port_std 0.2.1
[INFO] finished tweaking crates.io crate r3_port_std 0.2.1
[INFO] tweaked toml for crates.io crate r3_port_std 0.2.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded atomic_ref v0.2.1
[INFO] [stderr]   Downloaded r3_kernel v0.1.4
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd911b211ac5a82a6dc9682b536aeba442ffb2e18981fbc09ef80400e8d7b902
[INFO] running `Command { std: "docker" "start" "-a" "fd911b211ac5a82a6dc9682b536aeba442ffb2e18981fbc09ef80400e8d7b902", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd911b211ac5a82a6dc9682b536aeba442ffb2e18981fbc09ef80400e8d7b902", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd911b211ac5a82a6dc9682b536aeba442ffb2e18981fbc09ef80400e8d7b902", kill_on_drop: false }`
[INFO] [stdout] fd911b211ac5a82a6dc9682b536aeba442ffb2e18981fbc09ef80400e8d7b902
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ec64c9ddb1106ae8c5b83a105357b8a93ee6514b4254cd8504009938878bbce
[INFO] running `Command { std: "docker" "start" "-a" "8ec64c9ddb1106ae8c5b83a105357b8a93ee6514b4254cd8504009938878bbce", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling semver v1.0.17
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling seq-macro v0.3.3
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking regex-syntax v0.7.1
[INFO] [stderr]     Checking elain v0.3.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking errno v0.2.8
[INFO] [stderr]     Checking atomic_ref v0.2.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/memoffset-0.6.5/src/lib.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     feature(const_ptr_offset_from, const_refs_to_cell)
[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/github.com-1ecc6299db9ec823/memoffset-0.6.5/src/lib.rs:61:13
[INFO] [stdout]    |
[INFO] [stdout] 61 |     feature(const_ptr_offset_from, const_refs_to_cell)
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^
[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] [stderr] error: could not compile `memoffset` due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8ec64c9ddb1106ae8c5b83a105357b8a93ee6514b4254cd8504009938878bbce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ec64c9ddb1106ae8c5b83a105357b8a93ee6514b4254cd8504009938878bbce", kill_on_drop: false }`
[INFO] [stdout] 8ec64c9ddb1106ae8c5b83a105357b8a93ee6514b4254cd8504009938878bbce
