[INFO] fetching crate a6f2b8a3b35c00986c770f6ce15a5dda7aff8f5dc14cfbe8f58177d31 2.0.0...
[INFO] checking a6f2b8a3b35c00986c770f6ce15a5dda7aff8f5dc14cfbe8f58177d31-2.0.0 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate a6f2b8a3b35c00986c770f6ce15a5dda7aff8f5dc14cfbe8f58177d31 2.0.0 into /workspace/builds/worker-47/source
[INFO] validating manifest of crates.io crate a6f2b8a3b35c00986c770f6ce15a5dda7aff8f5dc14cfbe8f58177d31 2.0.0 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate a6f2b8a3b35c00986c770f6ce15a5dda7aff8f5dc14cfbe8f58177d31 2.0.0
[INFO] finished tweaking crates.io crate a6f2b8a3b35c00986c770f6ce15a5dda7aff8f5dc14cfbe8f58177d31 2.0.0
[INFO] tweaked toml for crates.io crate a6f2b8a3b35c00986c770f6ce15a5dda7aff8f5dc14cfbe8f58177d31 2.0.0 written to /workspace/builds/worker-47/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "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-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4f946ef8d234e77a8d329a5a65f129b810068b1bd2bf0469f08d965255e90d7
[INFO] running `Command { std: "docker" "start" "-a" "f4f946ef8d234e77a8d329a5a65f129b810068b1bd2bf0469f08d965255e90d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4f946ef8d234e77a8d329a5a65f129b810068b1bd2bf0469f08d965255e90d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4f946ef8d234e77a8d329a5a65f129b810068b1bd2bf0469f08d965255e90d7", kill_on_drop: false }`
[INFO] [stdout] f4f946ef8d234e77a8d329a5a65f129b810068b1bd2bf0469f08d965255e90d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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=warn" "-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" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59b35401f7a98de187c171d32db7b6d30dc2a4889607b9f8c2b71cb1160f59f2
[INFO] running `Command { std: "docker" "start" "-a" "59b35401f7a98de187c171d32db7b6d30dc2a4889607b9f8c2b71cb1160f59f2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking a6f2b8a3b35c00986c770f6ce15a5dda7aff8f5dc14cfbe8f58177d31 v2.0.0 (/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 2.95s
[INFO] running `Command { std: "docker" "inspect" "59b35401f7a98de187c171d32db7b6d30dc2a4889607b9f8c2b71cb1160f59f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59b35401f7a98de187c171d32db7b6d30dc2a4889607b9f8c2b71cb1160f59f2", kill_on_drop: false }`
[INFO] [stdout] 59b35401f7a98de187c171d32db7b6d30dc2a4889607b9f8c2b71cb1160f59f2
