[INFO] fetching crate slabmalloc 0.10.0...
[INFO] checking slabmalloc-0.10.0 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate slabmalloc 0.10.0 into /workspace/builds/worker-33/source
[INFO] validating manifest of crates.io crate slabmalloc 0.10.0 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "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-33/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "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 humantime v2.1.0
[INFO] [stderr]   Downloaded env_logger v0.8.3
[INFO] [stderr]   Downloaded spin v0.9.0
[INFO] [stderr]   Downloaded libc v0.2.95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e4cbbaf6f9416203939313a3971905bb0bed9b958adeb76e8febf99e5f0f205
[INFO] running `Command { std: "docker" "start" "-a" "3e4cbbaf6f9416203939313a3971905bb0bed9b958adeb76e8febf99e5f0f205", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e4cbbaf6f9416203939313a3971905bb0bed9b958adeb76e8febf99e5f0f205", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e4cbbaf6f9416203939313a3971905bb0bed9b958adeb76e8febf99e5f0f205", kill_on_drop: false }`
[INFO] [stdout] 3e4cbbaf6f9416203939313a3971905bb0bed9b958adeb76e8febf99e5f0f205
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 402e20d63d065178959383526da7313037f784be2f280b8e71d25679f555ab0c
[INFO] running `Command { std: "docker" "start" "-a" "402e20d63d065178959383526da7313037f784be2f280b8e71d25679f555ab0c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking spin v0.9.0
[INFO] [stderr]     Checking slabmalloc v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[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" "402e20d63d065178959383526da7313037f784be2f280b8e71d25679f555ab0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "402e20d63d065178959383526da7313037f784be2f280b8e71d25679f555ab0c", kill_on_drop: false }`
[INFO] [stdout] 402e20d63d065178959383526da7313037f784be2f280b8e71d25679f555ab0c