[INFO] fetching crate introspectable 0.5.0...
[INFO] checking introspectable-0.5.0 against try#4949cf2f817beadb9a248d423b6d55d6d2398ffe for pr-142681
[INFO] extracting crate introspectable 0.5.0 into /workspace/builds/worker-0-tc2/source
[INFO] checking introspectable-0.5.0 against try#4949cf2f817beadb9a248d423b6d55d6d2398ffe for pr-142681
[INFO] extracting crate introspectable 0.5.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate introspectable 0.5.0
[INFO] finished tweaking crates.io crate introspectable 0.5.0
[INFO] tweaked toml for crates.io crate introspectable 0.5.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate introspectable 0.5.0 on toolchain 4949cf2f817beadb9a248d423b6d55d6d2398ffe
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4949cf2f817beadb9a248d423b6d55d6d2398ffe" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4949cf2f817beadb9a248d423b6d55d6d2398ffe" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4949cf2f817beadb9a248d423b6d55d6d2398ffe" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded introspectable_derive v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4949cf2f817beadb9a248d423b6d55d6d2398ffe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97ce99c10d6ea1064f9c2783ab028647c06aa659fe957c696e0213d6ab58fba8
[INFO] running `Command { std: "docker" "start" "-a" "97ce99c10d6ea1064f9c2783ab028647c06aa659fe957c696e0213d6ab58fba8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97ce99c10d6ea1064f9c2783ab028647c06aa659fe957c696e0213d6ab58fba8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97ce99c10d6ea1064f9c2783ab028647c06aa659fe957c696e0213d6ab58fba8", kill_on_drop: false }`
[INFO] [stdout] 97ce99c10d6ea1064f9c2783ab028647c06aa659fe957c696e0213d6ab58fba8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4949cf2f817beadb9a248d423b6d55d6d2398ffe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8179b610e1b0cc4c1ba244c53b6346914ac245af73b54af04139e4a4f4846d20
[INFO] running `Command { std: "docker" "start" "-a" "8179b610e1b0cc4c1ba244c53b6346914ac245af73b54af04139e4a4f4846d20", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling introspectable_derive v0.1.0
[INFO] [stderr]     Checking introspectable v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.57s
[INFO] running `Command { std: "docker" "inspect" "8179b610e1b0cc4c1ba244c53b6346914ac245af73b54af04139e4a4f4846d20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8179b610e1b0cc4c1ba244c53b6346914ac245af73b54af04139e4a4f4846d20", kill_on_drop: false }`
[INFO] [stdout] 8179b610e1b0cc4c1ba244c53b6346914ac245af73b54af04139e4a4f4846d20