[INFO] fetching crate supply-chain-trust-example-crate-000067 0.4.9...
[INFO] checking supply-chain-trust-example-crate-000067-0.4.9 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate supply-chain-trust-example-crate-000067 0.4.9 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate supply-chain-trust-example-crate-000067 0.4.9
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate supply-chain-trust-example-crate-000067 0.4.9
[INFO] tweaked toml for crates.io crate supply-chain-trust-example-crate-000067 0.4.9 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate supply-chain-trust-example-crate-000067 0.4.9 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 9 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] [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] 37f393f19739d9645ab002e826e577deee513b4678408aacda8044d1aee07406
[INFO] running `Command { std: "docker" "start" "-a" "37f393f19739d9645ab002e826e577deee513b4678408aacda8044d1aee07406", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37f393f19739d9645ab002e826e577deee513b4678408aacda8044d1aee07406", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37f393f19739d9645ab002e826e577deee513b4678408aacda8044d1aee07406", kill_on_drop: false }`
[INFO] [stdout] 37f393f19739d9645ab002e826e577deee513b4678408aacda8044d1aee07406
[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] 5b403870344e50bb32149851053c7f6cb9a5fa742572e4557e7851774d48a5fc
[INFO] running `Command { std: "docker" "start" "-a" "5b403870344e50bb32149851053c7f6cb9a5fa742572e4557e7851774d48a5fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling rustversion v1.0.21
[INFO] [stderr]    Compiling supply-chain-trust-example-crate-000067 v0.4.9 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking serde_test v1.0.177
[INFO] [stdout] error[E0432]: unresolved import `slab`
[INFO] [stdout]  --> tests/slab.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use slab::*;
[INFO] [stdout]   |     ^^^^ use of unresolved module or unlinked crate `slab`
[INFO] [stdout]   |
[INFO] [stdout] help: to make use of source file tests/slab.rs, use `mod slab` in this file to declare the module
[INFO] [stdout]   |
[INFO] [stdout] 3 + mod slab;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> tests/slab.rs:636:37
[INFO] [stdout]     |
[INFO] [stdout] 636 |         Err(ref payload) if payload.downcast_ref() == Some(&"test") => {}
[INFO] [stdout]     |                                     ^^^^^^^^^^^^ cannot infer type for type parameter `E` declared on the enum `Result`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `supply-chain-trust-example-crate-000067` (test "slab") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "5b403870344e50bb32149851053c7f6cb9a5fa742572e4557e7851774d48a5fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b403870344e50bb32149851053c7f6cb9a5fa742572e4557e7851774d48a5fc", kill_on_drop: false }`
[INFO] [stdout] 5b403870344e50bb32149851053c7f6cb9a5fa742572e4557e7851774d48a5fc