[INFO] fetching crate teaspoon 0.1.0...
[INFO] checking teaspoon-0.1.0 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate teaspoon 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate teaspoon 0.1.0
[INFO] finished tweaking crates.io crate teaspoon 0.1.0
[INFO] tweaked toml for crates.io crate teaspoon 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate teaspoon 0.1.0 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]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.1)
[INFO] [stderr]       Adding spin v0.9.8 (available: v0.10.0)
[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-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 38093b61c1ae6ebca3bb0fe2df6121132456744616694adb9bcabdd3964d77a4
[INFO] running `Command { std: "docker" "start" "-a" "38093b61c1ae6ebca3bb0fe2df6121132456744616694adb9bcabdd3964d77a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38093b61c1ae6ebca3bb0fe2df6121132456744616694adb9bcabdd3964d77a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38093b61c1ae6ebca3bb0fe2df6121132456744616694adb9bcabdd3964d77a4", kill_on_drop: false }`
[INFO] [stdout] 38093b61c1ae6ebca3bb0fe2df6121132456744616694adb9bcabdd3964d77a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] b794e6dc7d5099e0daf18f9d430f4a8cfcd423b33eaca4ebbe6a1886cbf84dd0
[INFO] running `Command { std: "docker" "start" "-a" "b794e6dc7d5099e0daf18f9d430f4a8cfcd423b33eaca4ebbe6a1886cbf84dd0", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking teaspoon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stdout] warning: extern crate `rand` is unused in crate `teaspoon`
[INFO] [stdout]    --> src/lib.rs:4:1
[INFO] [stdout]     |
[INFO] [stdout] 4   | //! Teaspoon: an allocator for when all you have is a teaspoon of memory.
[INFO] [stdout]     | ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: remove the dependency or add `use rand as _;` to the crate root
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:218:9
[INFO] [stdout]     |
[INFO] [stdout] 218 | #![warn(unused_crate_dependencies)]
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "b794e6dc7d5099e0daf18f9d430f4a8cfcd423b33eaca4ebbe6a1886cbf84dd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b794e6dc7d5099e0daf18f9d430f4a8cfcd423b33eaca4ebbe6a1886cbf84dd0", kill_on_drop: false }`
[INFO] [stdout] b794e6dc7d5099e0daf18f9d430f4a8cfcd423b33eaca4ebbe6a1886cbf84dd0