[INFO] fetching crate custom_error_core 1.9.0...
[INFO] checking custom_error_core-1.9.0 against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] extracting crate custom_error_core 1.9.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate custom_error_core 1.9.0 on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate custom_error_core 1.9.0
[INFO] finished tweaking crates.io crate custom_error_core 1.9.0
[INFO] tweaked toml for crates.io crate custom_error_core 1.9.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c9b8208d51f0dd5787ac76a0f45dc7865fdca88174ea85ff7cd1dc1c799e5ed
[INFO] running `Command { std: "docker" "start" "-a" "3c9b8208d51f0dd5787ac76a0f45dc7865fdca88174ea85ff7cd1dc1c799e5ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c9b8208d51f0dd5787ac76a0f45dc7865fdca88174ea85ff7cd1dc1c799e5ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c9b8208d51f0dd5787ac76a0f45dc7865fdca88174ea85ff7cd1dc1c799e5ed", kill_on_drop: false }`
[INFO] [stdout] 3c9b8208d51f0dd5787ac76a0f45dc7865fdca88174ea85ff7cd1dc1c799e5ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fd90c4b16211ac7df1b68e52952ba0c3d284dcc5e6c2eeb3083b071d0d6967b
[INFO] running `Command { std: "docker" "start" "-a" "1fd90c4b16211ac7df1b68e52952ba0c3d284dcc5e6c2eeb3083b071d0d6967b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking custom_error_core v1.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `custom_error`
[INFO] [stdout]  --> tests/tests.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate custom_error;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[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 E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `custom_error_core` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1fd90c4b16211ac7df1b68e52952ba0c3d284dcc5e6c2eeb3083b071d0d6967b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fd90c4b16211ac7df1b68e52952ba0c3d284dcc5e6c2eeb3083b071d0d6967b", kill_on_drop: false }`
[INFO] [stdout] 1fd90c4b16211ac7df1b68e52952ba0c3d284dcc5e6c2eeb3083b071d0d6967b