[INFO] fetching crate mjb_gc_derive 0.2.0...
[INFO] checking mjb_gc_derive-0.2.0 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate mjb_gc_derive 0.2.0 into /workspace/builds/worker-61/source
[INFO] validating manifest of crates.io crate mjb_gc_derive 0.2.0 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 mjb_gc_derive 0.2.0
[INFO] finished tweaking crates.io crate mjb_gc_derive 0.2.0
[INFO] tweaked toml for crates.io crate mjb_gc_derive 0.2.0 written to /workspace/builds/worker-61/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] [stderr]     Blocking waiting for file lock on package cache
[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-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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] 436edbab3da79c6f52155c02aa139d65a8e15b4e7a708683691353b98692b0c1
[INFO] running `Command { std: "docker" "start" "-a" "436edbab3da79c6f52155c02aa139d65a8e15b4e7a708683691353b98692b0c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "436edbab3da79c6f52155c02aa139d65a8e15b4e7a708683691353b98692b0c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "436edbab3da79c6f52155c02aa139d65a8e15b4e7a708683691353b98692b0c1", kill_on_drop: false }`
[INFO] [stdout] 436edbab3da79c6f52155c02aa139d65a8e15b4e7a708683691353b98692b0c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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] eae1edd09c41899daf18ffa464c346c98876029ca464a25b73736e52c88e38d4
[INFO] running `Command { std: "docker" "start" "-a" "eae1edd09c41899daf18ffa464c346c98876029ca464a25b73736e52c88e38d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]     Checking synstructure v0.12.5
[INFO] [stderr]     Checking mjb_gc_derive v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.51s
[INFO] running `Command { std: "docker" "inspect" "eae1edd09c41899daf18ffa464c346c98876029ca464a25b73736e52c88e38d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eae1edd09c41899daf18ffa464c346c98876029ca464a25b73736e52c88e38d4", kill_on_drop: false }`
[INFO] [stdout] eae1edd09c41899daf18ffa464c346c98876029ca464a25b73736e52c88e38d4