[INFO] fetching crate pi_flex_layout 0.2.4...
[INFO] testing pi_flex_layout-0.2.4 against 1.69.0 for beta-1.70-1
[INFO] extracting crate pi_flex_layout 0.2.4 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate pi_flex_layout 0.2.4 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 pi_flex_layout 0.2.4
[INFO] removed 1 missing tests
[INFO] finished tweaking crates.io crate pi_flex_layout 0.2.4
[INFO] tweaked toml for crates.io crate pi_flex_layout 0.2.4 written to /workspace/builds/worker-7-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pi_null v0.1.0
[INFO] [stderr]   Downloaded pi_slotmap v0.1.5
[INFO] [stderr]   Downloaded derive_deref v1.1.1
[INFO] [stderr]   Downloaded pi_print_any v0.1.2
[INFO] [stderr]   Downloaded pi_map v0.1.5
[INFO] [stderr]   Downloaded pi_heap v0.1.0
[INFO] [stderr]   Downloaded pi_dyn_uint v0.1.0
[INFO] [stderr]   Downloaded pi_dirty v0.1.1
[INFO] [stderr]   Downloaded pi_enum_default_macro v0.1.0
[INFO] [stderr]   Downloaded pi_slotmap_tree v0.3.4
[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@sha256:97d61d7686bf65f8ecb15491ab51835e82dc9176a96a831f143a431b191fc501" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6497512a7fcd8e54f5986793f7069d1bfab48bbfb3a541d848d3549fbbfafed5
[INFO] running `Command { std: "docker" "start" "-a" "6497512a7fcd8e54f5986793f7069d1bfab48bbfb3a541d848d3549fbbfafed5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6497512a7fcd8e54f5986793f7069d1bfab48bbfb3a541d848d3549fbbfafed5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6497512a7fcd8e54f5986793f7069d1bfab48bbfb3a541d848d3549fbbfafed5", kill_on_drop: false }`
[INFO] [stdout] 6497512a7fcd8e54f5986793f7069d1bfab48bbfb3a541d848d3549fbbfafed5
[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@sha256:97d61d7686bf65f8ecb15491ab51835e82dc9176a96a831f143a431b191fc501" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb052e02685d94c614cd21e70f68044c5cf138c1687369ff1ec0775433f93428
[INFO] running `Command { std: "docker" "start" "-a" "eb052e02685d94c614cd21e70f68044c5cf138c1687369ff1ec0775433f93428", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling pi_null v0.1.0
[INFO] [stderr]    Compiling pi_slab v0.1.0
[INFO] [stderr]    Compiling paste v1.0.12
[INFO] [stderr]    Compiling pi_slotmap v0.1.5
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling pi_print_any v0.1.2
[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/pi_print_any-0.1.2/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pi_print_any` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "eb052e02685d94c614cd21e70f68044c5cf138c1687369ff1ec0775433f93428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb052e02685d94c614cd21e70f68044c5cf138c1687369ff1ec0775433f93428", kill_on_drop: false }`
[INFO] [stdout] eb052e02685d94c614cd21e70f68044c5cf138c1687369ff1ec0775433f93428
