[INFO] fetching crate slabmalloc 0.10.0...
[INFO] checking slabmalloc-0.10.0 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate slabmalloc 0.10.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate slabmalloc 0.10.0 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slabmalloc 0.10.0
[INFO] finished tweaking crates.io crate slabmalloc 0.10.0
[INFO] tweaked toml for crates.io crate slabmalloc 0.10.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate slabmalloc 0.10.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 365032d96cbfec3aea7f4fb694c5e3a4de813ee4c7b32b1dfccdbe96a325ee83
[INFO] running `Command { std: "docker" "start" "-a" "365032d96cbfec3aea7f4fb694c5e3a4de813ee4c7b32b1dfccdbe96a325ee83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "365032d96cbfec3aea7f4fb694c5e3a4de813ee4c7b32b1dfccdbe96a325ee83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "365032d96cbfec3aea7f4fb694c5e3a4de813ee4c7b32b1dfccdbe96a325ee83", kill_on_drop: false }`
[INFO] [stdout] 365032d96cbfec3aea7f4fb694c5e3a4de813ee4c7b32b1dfccdbe96a325ee83
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cdf522f2f599a91e0afac80e8bb36cc3bfbfeeda1914b7181d4bcd8d89556e6
[INFO] running `Command { std: "docker" "start" "-a" "4cdf522f2f599a91e0afac80e8bb36cc3bfbfeeda1914b7181d4bcd8d89556e6", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking spin v0.9.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking slabmalloc v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking env_logger v0.8.3
[INFO] [stdout] error[E0635]: unknown feature `raw`
[INFO] [stdout]   --> src/lib.rs:24:35
[INFO] [stdout]    |
[INFO] [stdout] 24 |     feature(prelude_import, test, raw, c_void_variant, core_intrinsics)
[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 E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `slabmalloc` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "4cdf522f2f599a91e0afac80e8bb36cc3bfbfeeda1914b7181d4bcd8d89556e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cdf522f2f599a91e0afac80e8bb36cc3bfbfeeda1914b7181d4bcd8d89556e6", kill_on_drop: false }`
[INFO] [stdout] 4cdf522f2f599a91e0afac80e8bb36cc3bfbfeeda1914b7181d4bcd8d89556e6