[INFO] fetching crate drop_arena 0.3.0...
[INFO] checking drop_arena-0.3.0 against master#f8463896a9b36a04899c013bd8825a7fd29dd7a4 for pr-151920
[INFO] extracting crate drop_arena 0.3.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate drop_arena 0.3.0
[INFO] finished tweaking crates.io crate drop_arena 0.3.0
[INFO] tweaked toml for crates.io crate drop_arena 0.3.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate drop_arena 0.3.0 on toolchain f8463896a9b36a04899c013bd8825a7fd29dd7a4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "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" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 70 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.5.1 (available: v0.8.2)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.10.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded consume_on_drop v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b262c0a9694d95ff10517d4ae89ed7198213536f93625a26210f1f90e99509e9
[INFO] running `Command { std: "docker" "start" "-a" "b262c0a9694d95ff10517d4ae89ed7198213536f93625a26210f1f90e99509e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b262c0a9694d95ff10517d4ae89ed7198213536f93625a26210f1f90e99509e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b262c0a9694d95ff10517d4ae89ed7198213536f93625a26210f1f90e99509e9", kill_on_drop: false }`
[INFO] [stdout] b262c0a9694d95ff10517d4ae89ed7198213536f93625a26210f1f90e99509e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 93d9bdb21f20886e2bace2d5f12b1506e1caf37ea981f5409aa1b168ecc1beaf
[INFO] running `Command { std: "docker" "start" "-a" "93d9bdb21f20886e2bace2d5f12b1506e1caf37ea981f5409aa1b168ecc1beaf", kill_on_drop: false }`
[INFO] [stderr]     Checking typed-arena v2.0.2
[INFO] [stderr]     Checking consume_on_drop v0.1.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]     Checking drop_arena v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.02s
[INFO] running `Command { std: "docker" "inspect" "93d9bdb21f20886e2bace2d5f12b1506e1caf37ea981f5409aa1b168ecc1beaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93d9bdb21f20886e2bace2d5f12b1506e1caf37ea981f5409aa1b168ecc1beaf", kill_on_drop: false }`
[INFO] [stdout] 93d9bdb21f20886e2bace2d5f12b1506e1caf37ea981f5409aa1b168ecc1beaf