[INFO] fetching crate arc-gc 0.1.0...
[INFO] checking arc-gc-0.1.0 against try#77ee4623672f6bca3e33ba60b6479de48d44b1f9 for pr-99217
[INFO] extracting crate arc-gc 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate arc-gc 0.1.0 on toolchain 77ee4623672f6bca3e33ba60b6479de48d44b1f9
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+77ee4623672f6bca3e33ba60b6479de48d44b1f9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate arc-gc 0.1.0
[INFO] finished tweaking crates.io crate arc-gc 0.1.0
[INFO] tweaked toml for crates.io crate arc-gc 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+77ee4623672f6bca3e33ba60b6479de48d44b1f9" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+77ee4623672f6bca3e33ba60b6479de48d44b1f9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+77ee4623672f6bca3e33ba60b6479de48d44b1f9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47ddb3f4f363dc59f1caf35b088103b798aa17924fd8f5ad9efad87270e95430
[INFO] running `Command { std: "docker" "start" "-a" "47ddb3f4f363dc59f1caf35b088103b798aa17924fd8f5ad9efad87270e95430", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47ddb3f4f363dc59f1caf35b088103b798aa17924fd8f5ad9efad87270e95430", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47ddb3f4f363dc59f1caf35b088103b798aa17924fd8f5ad9efad87270e95430", kill_on_drop: false }`
[INFO] [stdout] 47ddb3f4f363dc59f1caf35b088103b798aa17924fd8f5ad9efad87270e95430
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+77ee4623672f6bca3e33ba60b6479de48d44b1f9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 39ac4042403efcf9f2805d63df3f185f7b755bbcd765ede49f01befa4fd65475
[INFO] running `Command { std: "docker" "start" "-a" "39ac4042403efcf9f2805d63df3f185f7b755bbcd765ede49f01befa4fd65475", kill_on_drop: false }`
[INFO] [stderr]     Checking arc-gc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "39ac4042403efcf9f2805d63df3f185f7b755bbcd765ede49f01befa4fd65475", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39ac4042403efcf9f2805d63df3f185f7b755bbcd765ede49f01befa4fd65475", kill_on_drop: false }`
[INFO] [stdout] 39ac4042403efcf9f2805d63df3f185f7b755bbcd765ede49f01befa4fd65475