[INFO] fetching crate hermetic 0.1.0...
[INFO] checking hermetic-0.1.0 against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104
[INFO] extracting crate hermetic 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate hermetic 0.1.0 on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hermetic 0.1.0
[INFO] finished tweaking crates.io crate hermetic 0.1.0
[INFO] tweaked toml for crates.io crate hermetic 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 14493ff33fb4a2280752f9b0eabecbd2b63263fe43c9765f8fc54c09d8d5c717
[INFO] running `Command { std: "docker" "start" "-a" "14493ff33fb4a2280752f9b0eabecbd2b63263fe43c9765f8fc54c09d8d5c717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "14493ff33fb4a2280752f9b0eabecbd2b63263fe43c9765f8fc54c09d8d5c717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14493ff33fb4a2280752f9b0eabecbd2b63263fe43c9765f8fc54c09d8d5c717", kill_on_drop: false }`
[INFO] [stdout] 14493ff33fb4a2280752f9b0eabecbd2b63263fe43c9765f8fc54c09d8d5c717
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba2804e819385316035bf134dca103b019a9a081855b4f1840d22267fc6193b2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ba2804e819385316035bf134dca103b019a9a081855b4f1840d22267fc6193b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling inventory v0.1.9
[INFO] [stderr]    Compiling unindent v0.1.6
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]    Compiling pyo3-derive-backend v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]    Compiling inventory-impl v0.1.9
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling ctor v0.1.15
[INFO] [stderr]    Compiling pyo3cls v0.8.5
[INFO] [stderr]     Checking indoc v0.3.6
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling pyo3 v0.8.5
[INFO] [stderr]     Checking hermetic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `Command { std: "docker" "inspect" "ba2804e819385316035bf134dca103b019a9a081855b4f1840d22267fc6193b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba2804e819385316035bf134dca103b019a9a081855b4f1840d22267fc6193b2", kill_on_drop: false }`
[INFO] [stdout] ba2804e819385316035bf134dca103b019a9a081855b4f1840d22267fc6193b2