[INFO] fetching crate a1ac5d3b4f91ecaa475e6a9937deb3d84aa13925f9d41414dcdbc05d7 0.0.2...
[INFO] checking a1ac5d3b4f91ecaa475e6a9937deb3d84aa13925f9d41414dcdbc05d7-0.0.2 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate a1ac5d3b4f91ecaa475e6a9937deb3d84aa13925f9d41414dcdbc05d7 0.0.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate a1ac5d3b4f91ecaa475e6a9937deb3d84aa13925f9d41414dcdbc05d7 0.0.2 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate a1ac5d3b4f91ecaa475e6a9937deb3d84aa13925f9d41414dcdbc05d7 0.0.2
[INFO] finished tweaking crates.io crate a1ac5d3b4f91ecaa475e6a9937deb3d84aa13925f9d41414dcdbc05d7 0.0.2
[INFO] tweaked toml for crates.io crate a1ac5d3b4f91ecaa475e6a9937deb3d84aa13925f9d41414dcdbc05d7 0.0.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8d6de428f19c4134b00af929b9817acda10ee7676d1f543b0103af98b01d408
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b8d6de428f19c4134b00af929b9817acda10ee7676d1f543b0103af98b01d408", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8d6de428f19c4134b00af929b9817acda10ee7676d1f543b0103af98b01d408", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8d6de428f19c4134b00af929b9817acda10ee7676d1f543b0103af98b01d408", kill_on_drop: false }`
[INFO] [stdout] b8d6de428f19c4134b00af929b9817acda10ee7676d1f543b0103af98b01d408
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e92f98853d358c1b3cd38bf9077b14b6d4f462c6a6d27583f75f13f30079e34
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9e92f98853d358c1b3cd38bf9077b14b6d4f462c6a6d27583f75f13f30079e34", kill_on_drop: false }`
[INFO] [stderr]     Checking a1ac5d3b4f91ecaa475e6a9937deb3d84aa13925f9d41414dcdbc05d7 v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `indent`
[INFO] [stdout]  --> src/lib.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn dep_tree(indent: usize) {
[INFO] [stdout]   |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_indent`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `indent`
[INFO] [stdout]  --> src/lib.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn dep_tree(indent: usize) {
[INFO] [stdout]   |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_indent`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "9e92f98853d358c1b3cd38bf9077b14b6d4f462c6a6d27583f75f13f30079e34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e92f98853d358c1b3cd38bf9077b14b6d4f462c6a6d27583f75f13f30079e34", kill_on_drop: false }`
[INFO] [stdout] 9e92f98853d358c1b3cd38bf9077b14b6d4f462c6a6d27583f75f13f30079e34