[INFO] fetching crate jupyter-kernel 0.1.0...
[INFO] checking jupyter-kernel-0.1.0 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate jupyter-kernel 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate jupyter-kernel 0.1.0 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jupyter-kernel 0.1.0
[INFO] finished tweaking crates.io crate jupyter-kernel 0.1.0
[INFO] tweaked toml for crates.io crate jupyter-kernel 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 108 packages to latest compatible versions
[INFO] [stderr]       Adding aho-corasick v0.5.3 (latest: v1.1.3)
[INFO] [stderr]       Adding aster v0.22.1 (latest: v0.41.0)
[INFO] [stderr]       Adding env_logger v0.3.5 (latest: v0.11.3)
[INFO] [stderr]       Adding log v0.3.9 (latest: v0.4.21)
[INFO] [stderr]       Adding memchr v0.1.11 (latest: v2.7.2)
[INFO] [stderr]       Adding nom v0.4.0 (latest: v7.1.3)
[INFO] [stderr]       Adding num v0.1.42 (latest: v0.4.2)
[INFO] [stderr]       Adding num-bigint v0.1.44 (latest: v0.4.4)
[INFO] [stderr]       Adding num-complex v0.1.43 (latest: v0.4.5)
[INFO] [stderr]       Adding num-rational v0.1.42 (latest: v0.4.1)
[INFO] [stderr]       Adding quasi v0.16.0 (latest: v0.32.0)
[INFO] [stderr]       Adding quasi_codegen v0.16.0 (latest: v0.32.0)
[INFO] [stderr]       Adding quasi_macros v0.16.0 (latest: v0.32.0)
[INFO] [stderr]       Adding rand v0.3.23 (latest: v0.8.5)
[INFO] [stderr]       Adding rand v0.4.6 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_core v0.3.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (latest: v0.6.4)
[INFO] [stderr]       Adding rdrand v0.4.0 (latest: v0.8.3)
[INFO] [stderr]       Adding regex v0.1.80 (latest: v1.10.4)
[INFO] [stderr]       Adding regex-syntax v0.3.9 (latest: v0.8.3)
[INFO] [stderr]       Adding serde v0.6.15 (latest: v1.0.200)
[INFO] [stderr]       Adding serde_codegen v0.7.15 (latest: v0.9.0)
[INFO] [stderr]       Adding serde_codegen_internals v0.4.0 (latest: v0.14.2)
[INFO] [stderr]       Adding serde_json v0.6.1 (latest: v1.0.116)
[INFO] [stderr]       Adding serde_macros v0.5.3 (latest: v0.8.9)
[INFO] [stderr]       Adding thread-id v2.0.0 (latest: v4.2.1)
[INFO] [stderr]       Adding thread_local v0.2.7 (latest: v1.1.8)
[INFO] [stderr]       Adding utf8-ranges v0.1.3 (latest: v1.0.5)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding winapi v0.2.8 (latest: v0.3.9)
[INFO] [stderr]       Adding zeromq-src v0.2.6+4.3.4 (latest: v0.3.1+4.3.5)
[INFO] [stderr]       Adding zmq v0.7.0 (latest: v0.10.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_codegen_internals v0.4.0
[INFO] [stderr]   Downloaded aster v0.22.1
[INFO] [stderr]   Downloaded quasi_macros v0.16.0
[INFO] [stderr]   Downloaded serde_codegen v0.7.15
[INFO] [stderr]   Downloaded quasi v0.16.0
[INFO] [stderr]   Downloaded quasi_codegen v0.16.0
[INFO] [stderr]   Downloaded nom v0.4.0
[INFO] [stderr]   Downloaded chan v0.1.23
[INFO] [stderr]   Downloaded zmq v0.7.0
[INFO] [stderr]   Downloaded serde_macros v0.5.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13dd021a254c6ccf9f2e6775f5d4a6234314edebb4284f78dc4541524c1708a9
[INFO] running `Command { std: "docker" "start" "-a" "13dd021a254c6ccf9f2e6775f5d4a6234314edebb4284f78dc4541524c1708a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13dd021a254c6ccf9f2e6775f5d4a6234314edebb4284f78dc4541524c1708a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13dd021a254c6ccf9f2e6775f5d4a6234314edebb4284f78dc4541524c1708a9", kill_on_drop: false }`
[INFO] [stdout] 13dd021a254c6ccf9f2e6775f5d4a6234314edebb4284f78dc4541524c1708a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c871af5aa2911a3cae1d19b7535d05d8b16dea05ae5bd6b908601e75b263f2ab
[INFO] running `Command { std: "docker" "start" "-a" "c871af5aa2911a3cae1d19b7535d05d8b16dea05ae5bd6b908601e75b263f2ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling target-lexicon v0.12.14
[INFO] [stderr]    Compiling either v1.11.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling serde v1.0.200
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling winnow v0.6.7
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-queue v0.3.11
[INFO] [stderr]    Compiling crossbeam-channel v0.5.12
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]    Compiling jobserver v0.1.31
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling cc v1.0.96
[INFO] [stderr]    Compiling cfg-expr v0.15.8
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling version-compare v0.2.0
[INFO] [stderr]     Checking getrandom v0.2.14
[INFO] [stderr]    Compiling aster v0.22.1
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/aster-0.22.1/src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate syntax;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aster` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c871af5aa2911a3cae1d19b7535d05d8b16dea05ae5bd6b908601e75b263f2ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c871af5aa2911a3cae1d19b7535d05d8b16dea05ae5bd6b908601e75b263f2ab", kill_on_drop: false }`
[INFO] [stdout] c871af5aa2911a3cae1d19b7535d05d8b16dea05ae5bd6b908601e75b263f2ab
[INFO] checking jupyter-kernel-0.1.0 against try#9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88 for pr-124157
[INFO] extracting crate jupyter-kernel 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate jupyter-kernel 0.1.0 on toolchain 9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jupyter-kernel 0.1.0
[INFO] finished tweaking crates.io crate jupyter-kernel 0.1.0
[INFO] tweaked toml for crates.io crate jupyter-kernel 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 108 packages to latest compatible versions
[INFO] [stderr]       Adding aho-corasick v0.5.3 (latest: v1.1.3)
[INFO] [stderr]       Adding aster v0.22.1 (latest: v0.41.0)
[INFO] [stderr]       Adding env_logger v0.3.5 (latest: v0.11.3)
[INFO] [stderr]       Adding log v0.3.9 (latest: v0.4.21)
[INFO] [stderr]       Adding memchr v0.1.11 (latest: v2.7.2)
[INFO] [stderr]       Adding nom v0.4.0 (latest: v7.1.3)
[INFO] [stderr]       Adding num v0.1.42 (latest: v0.4.2)
[INFO] [stderr]       Adding num-bigint v0.1.44 (latest: v0.4.4)
[INFO] [stderr]       Adding num-complex v0.1.43 (latest: v0.4.5)
[INFO] [stderr]       Adding num-rational v0.1.42 (latest: v0.4.1)
[INFO] [stderr]       Adding quasi v0.16.0 (latest: v0.32.0)
[INFO] [stderr]       Adding quasi_codegen v0.16.0 (latest: v0.32.0)
[INFO] [stderr]       Adding quasi_macros v0.16.0 (latest: v0.32.0)
[INFO] [stderr]       Adding rand v0.3.23 (latest: v0.8.5)
[INFO] [stderr]       Adding rand v0.4.6 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_core v0.3.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (latest: v0.6.4)
[INFO] [stderr]       Adding rdrand v0.4.0 (latest: v0.8.3)
[INFO] [stderr]       Adding regex v0.1.80 (latest: v1.10.4)
[INFO] [stderr]       Adding regex-syntax v0.3.9 (latest: v0.8.3)
[INFO] [stderr]       Adding serde v0.6.15 (latest: v1.0.200)
[INFO] [stderr]       Adding serde_codegen v0.7.15 (latest: v0.9.0)
[INFO] [stderr]       Adding serde_codegen_internals v0.4.0 (latest: v0.14.2)
[INFO] [stderr]       Adding serde_json v0.6.1 (latest: v1.0.116)
[INFO] [stderr]       Adding serde_macros v0.5.3 (latest: v0.8.9)
[INFO] [stderr]       Adding thread-id v2.0.0 (latest: v4.2.1)
[INFO] [stderr]       Adding thread_local v0.2.7 (latest: v1.1.8)
[INFO] [stderr]       Adding utf8-ranges v0.1.3 (latest: v1.0.5)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding winapi v0.2.8 (latest: v0.3.9)
[INFO] [stderr]       Adding zeromq-src v0.2.6+4.3.4 (latest: v0.3.1+4.3.5)
[INFO] [stderr]       Adding zmq v0.7.0 (latest: v0.10.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3e375af132e683d5ad9e6e6f781b496c16e1daddca645d3dcf55696bbb2e296
[INFO] running `Command { std: "docker" "start" "-a" "f3e375af132e683d5ad9e6e6f781b496c16e1daddca645d3dcf55696bbb2e296", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3e375af132e683d5ad9e6e6f781b496c16e1daddca645d3dcf55696bbb2e296", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3e375af132e683d5ad9e6e6f781b496c16e1daddca645d3dcf55696bbb2e296", kill_on_drop: false }`
[INFO] [stdout] f3e375af132e683d5ad9e6e6f781b496c16e1daddca645d3dcf55696bbb2e296
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adb6fed395c240e22aca6d95878d5e222891e1c3d6316e7fe3fc3f2bdd3ac216
[INFO] running `Command { std: "docker" "start" "-a" "adb6fed395c240e22aca6d95878d5e222891e1c3d6316e7fe3fc3f2bdd3ac216", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.12.14
[INFO] [stderr]    Compiling either v1.11.0
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling serde v1.0.200
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winnow v0.6.7
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-channel v0.5.12
[INFO] [stderr]    Compiling crossbeam-queue v0.3.11
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling jobserver v0.1.31
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling cc v1.0.96
[INFO] [stderr]    Compiling cfg-expr v0.15.8
[INFO] [stderr]    Compiling version-compare v0.2.0
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking getrandom v0.2.14
[INFO] [stderr]    Compiling aster v0.22.1
[INFO] [stdout] error[E0463]: can't find crate for `syntax`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/aster-0.22.1/src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | extern crate syntax;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aster` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "adb6fed395c240e22aca6d95878d5e222891e1c3d6316e7fe3fc3f2bdd3ac216", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adb6fed395c240e22aca6d95878d5e222891e1c3d6316e7fe3fc3f2bdd3ac216", kill_on_drop: false }`
[INFO] [stdout] adb6fed395c240e22aca6d95878d5e222891e1c3d6316e7fe3fc3f2bdd3ac216
