[INFO] fetching crate chert_derive 0.2.0...
[INFO] checking chert_derive-0.2.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate chert_derive 0.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate chert_derive 0.2.0
[INFO] finished tweaking crates.io crate chert_derive 0.2.0
[INFO] tweaked toml for crates.io crate chert_derive 0.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate chert_derive 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 4f45e693eb7c4209a3151ae0a061b3e78e0686b144a6379d868823ef6a4ff866
[INFO] running `Command { std: "docker" "start" "-a" "4f45e693eb7c4209a3151ae0a061b3e78e0686b144a6379d868823ef6a4ff866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f45e693eb7c4209a3151ae0a061b3e78e0686b144a6379d868823ef6a4ff866", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f45e693eb7c4209a3151ae0a061b3e78e0686b144a6379d868823ef6a4ff866", kill_on_drop: false }`
[INFO] [stdout] 4f45e693eb7c4209a3151ae0a061b3e78e0686b144a6379d868823ef6a4ff866
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 46d2f834ac8897337bacc6ffa578a69a6c0cd04354898a4a0e7ccfb0cd0396d0
[INFO] running `Command { std: "docker" "start" "-a" "46d2f834ac8897337bacc6ffa578a69a6c0cd04354898a4a0e7ccfb0cd0396d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking syn v2.0.104
[INFO] [stderr]     Checking chert_derive v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `chert_accessor`
[INFO] [stdout]  --> tests/basic.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use chert_accessor::{ChertField, ChertStruct};
[INFO] [stdout]   |     ^^^^^^^^^^^^^^ use of unresolved module or unlinked crate `chert_accessor`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `chert_accessor`, use `cargo add chert_accessor` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `chert`
[INFO] [stdout]  --> tests/basic.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Debug, ChertStruct)]
[INFO] [stdout]   |                 ^^^^^^^^^^^ use of unresolved module or unlinked crate `chert`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `chert`, use `cargo add chert` to add it to your `Cargo.toml`
[INFO] [stdout]   = note: this error originates in the derive macro `ChertStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `chert`
[INFO] [stdout]  --> tests/basic.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Debug, ChertStruct)]
[INFO] [stdout]   |                 ^^^^^^^^^^^ use of unresolved module or unlinked crate `chert`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `chert`, use `cargo add chert` to add it to your `Cargo.toml`
[INFO] [stdout]   = note: this error originates in the derive macro `ChertStruct` (in Nightly builds, run with -Z macro-backtrace for more info)
[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 `chert_derive` (test "basic") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "46d2f834ac8897337bacc6ffa578a69a6c0cd04354898a4a0e7ccfb0cd0396d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46d2f834ac8897337bacc6ffa578a69a6c0cd04354898a4a0e7ccfb0cd0396d0", kill_on_drop: false }`
[INFO] [stdout] 46d2f834ac8897337bacc6ffa578a69a6c0cd04354898a4a0e7ccfb0cd0396d0