[INFO] fetching crate const_closure 0.2.2...
[INFO] checking const_closure-0.2.2 against master#ab37a83ae2c829b8597bdcda8244964ebc60b495 for pr-99943
[INFO] extracting crate const_closure 0.2.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate const_closure 0.2.2 on toolchain ab37a83ae2c829b8597bdcda8244964ebc60b495
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ab37a83ae2c829b8597bdcda8244964ebc60b495" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate const_closure 0.2.2
[INFO] finished tweaking crates.io crate const_closure 0.2.2
[INFO] tweaked toml for crates.io crate const_closure 0.2.2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ab37a83ae2c829b8597bdcda8244964ebc60b495" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ab37a83ae2c829b8597bdcda8244964ebc60b495" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+ab37a83ae2c829b8597bdcda8244964ebc60b495" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f3352f86ca1bc2eaa626e206caee7274b6da7e4e967da4750843fbcc3904add
[INFO] running `Command { std: "docker" "start" "-a" "8f3352f86ca1bc2eaa626e206caee7274b6da7e4e967da4750843fbcc3904add", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f3352f86ca1bc2eaa626e206caee7274b6da7e4e967da4750843fbcc3904add", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f3352f86ca1bc2eaa626e206caee7274b6da7e4e967da4750843fbcc3904add", kill_on_drop: false }`
[INFO] [stdout] 8f3352f86ca1bc2eaa626e206caee7274b6da7e4e967da4750843fbcc3904add
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+ab37a83ae2c829b8597bdcda8244964ebc60b495" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d281dea2296148ce11ed85c3f1e712674077d5bc993cf46ad79c716fa471b1e
[INFO] running `Command { std: "docker" "start" "-a" "7d281dea2296148ce11ed85c3f1e712674077d5bc993cf46ad79c716fa471b1e", kill_on_drop: false }`
[INFO] [stderr]     Checking const_closure v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "7d281dea2296148ce11ed85c3f1e712674077d5bc993cf46ad79c716fa471b1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d281dea2296148ce11ed85c3f1e712674077d5bc993cf46ad79c716fa471b1e", kill_on_drop: false }`
[INFO] [stdout] 7d281dea2296148ce11ed85c3f1e712674077d5bc993cf46ad79c716fa471b1e