[INFO] fetching crate implies 0.4.5...
[INFO] checking implies-0.4.5 against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] extracting crate implies 0.4.5 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate implies 0.4.5 on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate implies 0.4.5
[INFO] finished tweaking crates.io crate implies 0.4.5
[INFO] tweaked toml for crates.io crate implies 0.4.5 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 39 packages to latest compatible versions
[INFO] [stderr]       Adding enum-iterator v1.5.0 (latest: v2.1.0)
[INFO] [stderr]       Adding indoc v1.0.9 (latest: v2.0.5)
[INFO] [stderr]       Adding pyo3 v0.19.2 (latest: v0.21.2)
[INFO] [stderr]       Adding pyo3-build-config v0.19.2 (latest: v0.21.2)
[INFO] [stderr]       Adding pyo3-build-config v0.20.3 (latest: v0.21.2)
[INFO] [stderr]       Adding pyo3-ffi v0.19.2 (latest: v0.21.2)
[INFO] [stderr]       Adding pyo3-macros v0.19.2 (latest: v0.21.2)
[INFO] [stderr]       Adding pyo3-macros-backend v0.19.2 (latest: v0.21.2)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.66)
[INFO] [stderr]       Adding unindent v0.1.11 (latest: v0.2.3)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.19.2
[INFO] [stderr]   Downloaded pyo3-build-config v0.19.2
[INFO] [stderr]   Downloaded pyo3-macros v0.19.2
[INFO] [stderr]   Downloaded cascade v1.0.1
[INFO] [stderr]   Downloaded pyo3-ffi v0.19.2
[INFO] [stderr]   Downloaded pyo3-build-config v0.20.3
[INFO] [stderr]   Downloaded pyo3 v0.19.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ccced89a3f8c2d26c6768fccee0b9d1509a512b481b50b9a20621473b2804b33
[INFO] running `Command { std: "docker" "start" "-a" "ccced89a3f8c2d26c6768fccee0b9d1509a512b481b50b9a20621473b2804b33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccced89a3f8c2d26c6768fccee0b9d1509a512b481b50b9a20621473b2804b33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccced89a3f8c2d26c6768fccee0b9d1509a512b481b50b9a20621473b2804b33", kill_on_drop: false }`
[INFO] [stdout] ccced89a3f8c2d26c6768fccee0b9d1509a512b481b50b9a20621473b2804b33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 797b1e3ee129a9f746e4e81161ba7bb2a82aca8c43e713104b59367ac73c41dc
[INFO] running `Command { std: "docker" "start" "-a" "797b1e3ee129a9f746e4e81161ba7bb2a82aca8c43e713104b59367ac73c41dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling implies v0.4.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking cascade v1.0.1
[INFO] [stderr]    Compiling enum-iterator-derive v1.4.0
[INFO] [stderr]     Checking enum-iterator v1.5.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.21s
[INFO] running `Command { std: "docker" "inspect" "797b1e3ee129a9f746e4e81161ba7bb2a82aca8c43e713104b59367ac73c41dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "797b1e3ee129a9f746e4e81161ba7bb2a82aca8c43e713104b59367ac73c41dc", kill_on_drop: false }`
[INFO] [stdout] 797b1e3ee129a9f746e4e81161ba7bb2a82aca8c43e713104b59367ac73c41dc