[INFO] fetching crate elements-frequency 0.1.5...
[INFO] checking elements-frequency-0.1.5 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate elements-frequency 0.1.5 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate elements-frequency 0.1.5 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate elements-frequency 0.1.5
[INFO] finished tweaking crates.io crate elements-frequency 0.1.5
[INFO] tweaked toml for crates.io crate elements-frequency 0.1.5 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 54e214b755cdb0550e7c53f4baf7cf2bd604a997f70952bf077b69cb39e6a99e
[INFO] running `Command { std: "docker" "start" "-a" "54e214b755cdb0550e7c53f4baf7cf2bd604a997f70952bf077b69cb39e6a99e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54e214b755cdb0550e7c53f4baf7cf2bd604a997f70952bf077b69cb39e6a99e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54e214b755cdb0550e7c53f4baf7cf2bd604a997f70952bf077b69cb39e6a99e", kill_on_drop: false }`
[INFO] [stdout] 54e214b755cdb0550e7c53f4baf7cf2bd604a997f70952bf077b69cb39e6a99e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b92d9d9c6ac489b1a6f9098c131c3636effb6f3971e349bb519302b03f51816
[INFO] running `Command { std: "docker" "start" "-a" "0b92d9d9c6ac489b1a6f9098c131c3636effb6f3971e349bb519302b03f51816", kill_on_drop: false }`
[INFO] [stderr]     Checking elements-frequency v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "0b92d9d9c6ac489b1a6f9098c131c3636effb6f3971e349bb519302b03f51816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b92d9d9c6ac489b1a6f9098c131c3636effb6f3971e349bb519302b03f51816", kill_on_drop: false }`
[INFO] [stdout] 0b92d9d9c6ac489b1a6f9098c131c3636effb6f3971e349bb519302b03f51816