[INFO] fetching crate scale_std 0.0.1...
[INFO] checking scale_std-0.0.1 against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] extracting crate scale_std 0.0.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate scale_std 0.0.1 on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scale_std 0.0.1
[INFO] finished tweaking crates.io crate scale_std 0.0.1
[INFO] tweaked toml for crates.io crate scale_std 0.0.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded scale_documentation_parser v0.0.1
[INFO] [stderr]   Downloaded scale-core v0.0.1
[INFO] [stderr]   Downloaded scale_impl_generator v0.0.1
[INFO] [stderr]   Downloaded scale_documentation v0.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 623ea0af4dad48e7ab7e0c5ccf11d6500d80e38342209eef30bff489109e8fb5
[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" "623ea0af4dad48e7ab7e0c5ccf11d6500d80e38342209eef30bff489109e8fb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "623ea0af4dad48e7ab7e0c5ccf11d6500d80e38342209eef30bff489109e8fb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "623ea0af4dad48e7ab7e0c5ccf11d6500d80e38342209eef30bff489109e8fb5", kill_on_drop: false }`
[INFO] [stdout] 623ea0af4dad48e7ab7e0c5ccf11d6500d80e38342209eef30bff489109e8fb5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20b4d23ce22e0c001e37c602699340e3249b94932aa798105ccff716113197e7
[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" "20b4d23ce22e0c001e37c602699340e3249b94932aa798105ccff716113197e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling eyre v0.6.5
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling indenter v0.3.2
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.1
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling tracing-attributes v0.1.11
[INFO] [stderr]    Compiling scale_documentation_parser v0.0.1
[INFO] [stderr]    Compiling scale_documentation v0.0.1
[INFO] [stderr]    Compiling tracing v0.1.22
[INFO] [stderr]    Compiling scale_impl_generator v0.0.1
[INFO] [stdout] error: environment variable `SHARING_DATA` not defined
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/scale_impl_generator-0.0.1/src/lib.rs:386:42
[INFO] [stdout]     |
[INFO] [stdout] 386 |     let sshare = std::fs::read_to_string(env!("SHARING_DATA")).unwrap();
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scale_impl_generator`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "20b4d23ce22e0c001e37c602699340e3249b94932aa798105ccff716113197e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20b4d23ce22e0c001e37c602699340e3249b94932aa798105ccff716113197e7", kill_on_drop: false }`
[INFO] [stdout] 20b4d23ce22e0c001e37c602699340e3249b94932aa798105ccff716113197e7