[INFO] fetching crate prefer-dynamic 0.1.2...
[INFO] checking prefer-dynamic-0.1.2 against master#4bd30785eb6e55f317b41b7c278f438807eeb174 for pr-102737-1
[INFO] extracting crate prefer-dynamic 0.1.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate prefer-dynamic 0.1.2 on toolchain 4bd30785eb6e55f317b41b7c278f438807eeb174
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4bd30785eb6e55f317b41b7c278f438807eeb174" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prefer-dynamic 0.1.2
[INFO] finished tweaking crates.io crate prefer-dynamic 0.1.2
[INFO] tweaked toml for crates.io crate prefer-dynamic 0.1.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4bd30785eb6e55f317b41b7c278f438807eeb174" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4bd30785eb6e55f317b41b7c278f438807eeb174" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded build_cfg_shared v1.1.0
[INFO] [stderr]   Downloaded rustc_version v0.4.0
[INFO] [stderr]   Downloaded quote v1.0.21
[INFO] [stderr]   Downloaded semver v1.0.14
[INFO] [stderr]   Downloaded derive_more v0.99.17
[INFO] [stderr]   Downloaded build_cfg_macros v1.1.0
[INFO] [stderr]   Downloaded convert_case v0.4.0
[INFO] [stderr]   Downloaded build_cfg v1.1.0
[INFO] [stderr]   Downloaded unicode-ident v1.0.5
[INFO] [stderr]   Downloaded syn v1.0.102
[INFO] [stderr]   Downloaded proc-macro2 v1.0.46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+4bd30785eb6e55f317b41b7c278f438807eeb174" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b74a1f9386870a413941b4b1ef1d5fa1322a4b92ed06b4a8da08bff8954dd4fe
[INFO] running `Command { std: "docker" "start" "-a" "b74a1f9386870a413941b4b1ef1d5fa1322a4b92ed06b4a8da08bff8954dd4fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b74a1f9386870a413941b4b1ef1d5fa1322a4b92ed06b4a8da08bff8954dd4fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b74a1f9386870a413941b4b1ef1d5fa1322a4b92ed06b4a8da08bff8954dd4fe", kill_on_drop: false }`
[INFO] [stdout] b74a1f9386870a413941b4b1ef1d5fa1322a4b92ed06b4a8da08bff8954dd4fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+4bd30785eb6e55f317b41b7c278f438807eeb174" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1557eaa934717f108f56a417d45909824e5e3efc5e11640c5566285a66c9193f
[INFO] running `Command { std: "docker" "start" "-a" "1557eaa934717f108f56a417d45909824e5e3efc5e11640c5566285a66c9193f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling build_cfg_shared v1.1.0
[INFO] [stderr]    Compiling build_cfg_macros v1.1.0
[INFO] [stderr]    Compiling build_cfg v1.1.0
[INFO] [stderr]    Compiling prefer-dynamic v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.69s
[INFO] running `Command { std: "docker" "inspect" "1557eaa934717f108f56a417d45909824e5e3efc5e11640c5566285a66c9193f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1557eaa934717f108f56a417d45909824e5e3efc5e11640c5566285a66c9193f", kill_on_drop: false }`
[INFO] [stdout] 1557eaa934717f108f56a417d45909824e5e3efc5e11640c5566285a66c9193f