[INFO] fetching crate contract-metadata 5.0.0-alpha...
[INFO] checking contract-metadata-5.0.0-alpha against master#38352b01ae4af9300be03b805d6db68c45e51068 for pr-129864
[INFO] extracting crate contract-metadata 5.0.0-alpha into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate contract-metadata 5.0.0-alpha on toolchain 38352b01ae4af9300be03b805d6db68c45e51068
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate contract-metadata 5.0.0-alpha
[INFO] finished tweaking crates.io crate contract-metadata 5.0.0-alpha
[INFO] tweaked toml for crates.io crate contract-metadata 5.0.0-alpha written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "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]      Locking 24 packages to latest compatible versions
[INFO] [stderr]       Adding idna v0.5.0 (available: v1.0.2)
[INFO] [stderr]       Adding impl-serde v0.4.0 (available: v0.5.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded impl-serde v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42ca6eba4040416d2cac7f98b8688f3ebbac5adff64c44d564d9162832ece092
[INFO] running `Command { std: "docker" "start" "-a" "42ca6eba4040416d2cac7f98b8688f3ebbac5adff64c44d564d9162832ece092", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42ca6eba4040416d2cac7f98b8688f3ebbac5adff64c44d564d9162832ece092", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42ca6eba4040416d2cac7f98b8688f3ebbac5adff64c44d564d9162832ece092", kill_on_drop: false }`
[INFO] [stdout] 42ca6eba4040416d2cac7f98b8688f3ebbac5adff64c44d564d9162832ece092
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c80cdb403297f2dbe65acf476592e7e9fa3e95be195871c5d39e80a3dc414df
[INFO] running `Command { std: "docker" "start" "-a" "0c80cdb403297f2dbe65acf476592e7e9fa3e95be195871c5d39e80a3dc414df", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking yansi v1.0.1
[INFO] [stderr]     Checking serde v1.0.210
[INFO] [stderr]     Checking pretty_assertions v1.4.1
[INFO] [stderr]     Checking impl-serde v0.4.0
[INFO] [stderr]     Checking url v2.5.2
[INFO] [stderr]     Checking serde_json v1.0.128
[INFO] [stderr]     Checking contract-metadata v5.0.0-alpha (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.85s
[INFO] running `Command { std: "docker" "inspect" "0c80cdb403297f2dbe65acf476592e7e9fa3e95be195871c5d39e80a3dc414df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c80cdb403297f2dbe65acf476592e7e9fa3e95be195871c5d39e80a3dc414df", kill_on_drop: false }`
[INFO] [stdout] 0c80cdb403297f2dbe65acf476592e7e9fa3e95be195871c5d39e80a3dc414df