[INFO] fetching crate vy-core 0.2.0...
[INFO] checking vy-core-0.2.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate vy-core 0.2.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate vy-core 0.2.0
[INFO] finished tweaking crates.io crate vy-core 0.2.0
[INFO] tweaked toml for crates.io crate vy-core 0.2.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate vy-core 0.2.0 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate vy-core 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c58302653181ed38ba5695dc7b70fba1fb2deb024a5678a5b3e2f17f40fd5e5d
[INFO] running `Command { std: "docker" "start" "-a" "c58302653181ed38ba5695dc7b70fba1fb2deb024a5678a5b3e2f17f40fd5e5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c58302653181ed38ba5695dc7b70fba1fb2deb024a5678a5b3e2f17f40fd5e5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c58302653181ed38ba5695dc7b70fba1fb2deb024a5678a5b3e2f17f40fd5e5d", kill_on_drop: false }`
[INFO] [stdout] c58302653181ed38ba5695dc7b70fba1fb2deb024a5678a5b3e2f17f40fd5e5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d34b469964b486c8e98ef83a1ece0a953f7c7859ea6f88de32542c67fd3f318a
[INFO] running `Command { std: "docker" "start" "-a" "d34b469964b486c8e98ef83a1ece0a953f7c7859ea6f88de32542c67fd3f318a", kill_on_drop: false }`
[INFO] [stderr]     Checking itoap v1.0.1
[INFO] [stderr]     Checking vy-core v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `std`
[INFO] [stdout]    --> src/buffer.rs:376:9
[INFO] [stdout]     |
[INFO] [stdout] 376 |     use std::{
[INFO] [stdout]     |         ^^^ use of unresolved module or unlinked crate `std`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `std`, use `cargo add std` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std`
[INFO] [stdout]    --> src/buffer.rs:376:9
[INFO] [stdout]     |
[INFO] [stdout] 376 |     use std::{
[INFO] [stdout]     |         ^^^ use of unresolved module or unlinked crate `std`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `std`, use `cargo add std` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vy-core` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "d34b469964b486c8e98ef83a1ece0a953f7c7859ea6f88de32542c67fd3f318a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d34b469964b486c8e98ef83a1ece0a953f7c7859ea6f88de32542c67fd3f318a", kill_on_drop: false }`
[INFO] [stdout] d34b469964b486c8e98ef83a1ece0a953f7c7859ea6f88de32542c67fd3f318a