Dec 17 17:13:43.912 INFO checking rbalicki2/wasm-experiments against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 17:13:43.912 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/rbalicki2/wasm-experiments:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 17:13:44.402 INFO [stdout] 2d061cb4d1da784b426ab70271cc8d525bf19fb67d5d0ef76d4c86c3ee92fb75
Dec 17 17:13:44.406 INFO running `"docker" "start" "-a" "2d061cb4d1da784b426ab70271cc8d525bf19fb67d5d0ef76d4c86c3ee92fb75"`
Dec 17 17:13:46.760 INFO [stderr]     Checking stdweb v0.3.0
Dec 17 17:14:04.122 INFO [stderr]     Checking wasm-minimal v0.1.0 (/opt/crater/workdir)
Dec 17 17:14:04.442 INFO [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead? (see issue #27812)
Dec 17 17:14:04.442 INFO [stderr]  --> src/lib.rs:2:1
Dec 17 17:14:04.443 INFO [stderr]   |
Dec 17 17:14:04.443 INFO [stderr] 2 | extern crate libc;
Dec 17 17:14:04.443 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 17 17:14:04.444 INFO [stderr]   |
Dec 17 17:14:04.444 INFO [stderr]   = help: add #![feature(rustc_private)] to the crate attributes to enable
Dec 17 17:14:04.444 INFO [stderr] 
Dec 17 17:14:04.465 INFO [stderr] error: aborting due to previous error
Dec 17 17:14:04.465 INFO [stderr] 
Dec 17 17:14:04.466 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 17 17:14:04.472 INFO [stderr] error: Could not compile `wasm-minimal`.
Dec 17 17:14:04.473 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 17 17:14:04.498 INFO [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead? (see issue #27812)
Dec 17 17:14:04.498 INFO [stderr]  --> src/lib.rs:2:1
Dec 17 17:14:04.498 INFO [stderr]   |
Dec 17 17:14:04.499 INFO [stderr] 2 | extern crate libc;
Dec 17 17:14:04.499 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 17 17:14:04.499 INFO [stderr]   |
Dec 17 17:14:04.500 INFO [stderr]   = help: add #![feature(rustc_private)] to the crate attributes to enable
Dec 17 17:14:04.500 INFO [stderr] 
Dec 17 17:14:04.500 INFO [stderr] error: aborting due to previous error
Dec 17 17:14:04.501 INFO [stderr] 
Dec 17 17:14:04.501 INFO [stderr] For more information about this error, try `rustc --explain E0658`.
Dec 17 17:14:04.503 INFO [stderr] error: Could not compile `wasm-minimal`.
Dec 17 17:14:04.503 INFO [stderr] 
Dec 17 17:14:04.503 INFO [stderr] To learn more, run the command again with --verbose.
Dec 17 17:14:06.105 INFO running `"docker" "inspect" "2d061cb4d1da784b426ab70271cc8d525bf19fb67d5d0ef76d4c86c3ee92fb75"`
Dec 17 17:14:06.490 INFO running `"docker" "rm" "-f" "2d061cb4d1da784b426ab70271cc8d525bf19fb67d5d0ef76d4c86c3ee92fb75"`
Dec 17 17:14:06.836 INFO [stdout] 2d061cb4d1da784b426ab70271cc8d525bf19fb67d5d0ef76d4c86c3ee92fb75