[INFO] fetching crate tokio_safe_block_on 0.2.0...
[INFO] checking tokio_safe_block_on-0.2.0 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate tokio_safe_block_on 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate tokio_safe_block_on 0.2.0 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tokio_safe_block_on 0.2.0
[INFO] finished tweaking crates.io crate tokio_safe_block_on 0.2.0
[INFO] tweaked toml for crates.io crate tokio_safe_block_on 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 28 packages to latest compatible versions
[INFO] [stderr]       Adding bytes v0.5.6 (latest: v1.7.1)
[INFO] [stderr]       Adding hermit-abi v0.3.9 (latest: v0.4.0)
[INFO] [stderr]       Adding pin-project-lite v0.1.12 (latest: v0.2.14)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] [stderr]       Adding tokio v0.2.25 (latest: v1.40.0)
[INFO] [stderr]       Adding tokio-macros v0.2.6 (latest: v2.4.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 684c97e9d5724d9d7cbb88bfb0a698b8826c0204085e9215c247ff7038d47c2b
[INFO] running `Command { std: "docker" "start" "-a" "684c97e9d5724d9d7cbb88bfb0a698b8826c0204085e9215c247ff7038d47c2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "684c97e9d5724d9d7cbb88bfb0a698b8826c0204085e9215c247ff7038d47c2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "684c97e9d5724d9d7cbb88bfb0a698b8826c0204085e9215c247ff7038d47c2b", kill_on_drop: false }`
[INFO] [stdout] 684c97e9d5724d9d7cbb88bfb0a698b8826c0204085e9215c247ff7038d47c2b
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76f7694d597b8827e4d54873e83b2e8132f4c8b9d668e77c520a64ed81434f69
[INFO] running `Command { std: "docker" "start" "-a" "76f7694d597b8827e4d54873e83b2e8132f4c8b9d668e77c520a64ed81434f69", kill_on_drop: false }`
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking tokio_safe_block_on v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.71s
[INFO] running `Command { std: "docker" "inspect" "76f7694d597b8827e4d54873e83b2e8132f4c8b9d668e77c520a64ed81434f69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76f7694d597b8827e4d54873e83b2e8132f4c8b9d668e77c520a64ed81434f69", kill_on_drop: false }`
[INFO] [stdout] 76f7694d597b8827e4d54873e83b2e8132f4c8b9d668e77c520a64ed81434f69
[INFO] checking tokio_safe_block_on-0.2.0 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate tokio_safe_block_on 0.2.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate tokio_safe_block_on 0.2.0 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tokio_safe_block_on 0.2.0
[INFO] finished tweaking crates.io crate tokio_safe_block_on 0.2.0
[INFO] tweaked toml for crates.io crate tokio_safe_block_on 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 28 packages to latest compatible versions
[INFO] [stderr]       Adding bytes v0.5.6 (latest: v1.7.1)
[INFO] [stderr]       Adding hermit-abi v0.3.9 (latest: v0.4.0)
[INFO] [stderr]       Adding pin-project-lite v0.1.12 (latest: v0.2.14)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] [stderr]       Adding tokio v0.2.25 (latest: v1.40.0)
[INFO] [stderr]       Adding tokio-macros v0.2.6 (latest: v2.4.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7caea0ee760307d676ba671bba6d7010973686f9e8b945f911213bc11ef470e3
[INFO] running `Command { std: "docker" "start" "-a" "7caea0ee760307d676ba671bba6d7010973686f9e8b945f911213bc11ef470e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7caea0ee760307d676ba671bba6d7010973686f9e8b945f911213bc11ef470e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7caea0ee760307d676ba671bba6d7010973686f9e8b945f911213bc11ef470e3", kill_on_drop: false }`
[INFO] [stdout] 7caea0ee760307d676ba671bba6d7010973686f9e8b945f911213bc11ef470e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43ebb1260331ff04c88fdb714f628f81edda82960f8e14cbec0a6fb4da31741d
[INFO] running `Command { std: "docker" "start" "-a" "43ebb1260331ff04c88fdb714f628f81edda82960f8e14cbec0a6fb4da31741d", kill_on_drop: false }`
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking assert_matches v1.5.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking tokio_safe_block_on v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.17s
[INFO] running `Command { std: "docker" "inspect" "43ebb1260331ff04c88fdb714f628f81edda82960f8e14cbec0a6fb4da31741d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43ebb1260331ff04c88fdb714f628f81edda82960f8e14cbec0a6fb4da31741d", kill_on_drop: false }`
[INFO] [stdout] 43ebb1260331ff04c88fdb714f628f81edda82960f8e14cbec0a6fb4da31741d