[INFO] fetching crate keebrs 0.3.0...
[INFO] testing keebrs-0.3.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate keebrs 0.3.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate keebrs 0.3.0
[INFO] finished tweaking crates.io crate keebrs 0.3.0
[INFO] tweaked toml for crates.io crate keebrs 0.3.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate keebrs 0.3.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 51 packages to latest compatible versions
[INFO] [stderr]       Adding embedded-hal v0.2.7 (available: v1.0.0)
[INFO] [stderr]       Adding pin-project v0.4.30 (available: v1.1.10)
[INFO] [stderr]       Adding postcard v0.5.2 (available: v1.1.3)
[INFO] [stderr]       Adding smart-leds v0.3.0 (available: v0.4.0)
[INFO] [stderr]       Adding usb-device v0.2.9 (available: v0.3.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded polymer-core v0.1.0
[INFO] [stderr]   Downloaded usb-device v0.2.9
[INFO] [stderr]   Downloaded postcard v0.5.2
[INFO] [stderr]   Downloaded newtype v0.2.1
[INFO] [stderr]   Downloaded rgb v0.8.52
[INFO] [stderr]   Downloaded hash32 v0.1.1
[INFO] [stderr]   Downloaded derive-newtype v0.2.3
[INFO] [stderr]   Downloaded heapless v0.5.6
[INFO] [stderr]   Downloaded smart-leds-trait v0.2.1
[INFO] [stderr]   Downloaded smart-leds v0.3.0
[INFO] [stderr]   Downloaded async-codec v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9d63e6be7da69934616c08ba0679d6ba76bfbf4fa52929bca6e9b8fb94912f8
[INFO] running `Command { std: "docker" "start" "-a" "f9d63e6be7da69934616c08ba0679d6ba76bfbf4fa52929bca6e9b8fb94912f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9d63e6be7da69934616c08ba0679d6ba76bfbf4fa52929bca6e9b8fb94912f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9d63e6be7da69934616c08ba0679d6ba76bfbf4fa52929bca6e9b8fb94912f8", kill_on_drop: false }`
[INFO] [stdout] f9d63e6be7da69934616c08ba0679d6ba76bfbf4fa52929bca6e9b8fb94912f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e5217ac6e281e9e435eebba7e42b4d7d59c1bea0431034b96e65e170de92093
[INFO] running `Command { std: "docker" "start" "-a" "0e5217ac6e281e9e435eebba7e42b4d7d59c1bea0431034b96e65e170de92093", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.19.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling heapless v0.5.6
[INFO] [stderr]    Compiling generic-array v0.14.9
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.30
[INFO] [stderr]    Compiling bytemuck v1.24.0
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling polymer-core v0.1.0
[INFO] [stderr]    Compiling postcard-cobs v0.1.5-pre
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/polymer-core-0.1.0/src/lib.rs:2:34
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(arbitrary_self_types, const_fn, never_type)]
[INFO] [stdout]   |                                  ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in 1.54.0; see <https://github.com/rust-lang/rust/pull/85109> for more information
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling hash32 v0.1.1
[INFO] [stderr]    Compiling usb-device v0.2.9
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `polymer-core` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "0e5217ac6e281e9e435eebba7e42b4d7d59c1bea0431034b96e65e170de92093", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e5217ac6e281e9e435eebba7e42b4d7d59c1bea0431034b96e65e170de92093", kill_on_drop: false }`
[INFO] [stdout] 0e5217ac6e281e9e435eebba7e42b4d7d59c1bea0431034b96e65e170de92093
