[INFO] fetching crate memprint 0.2.0...
[INFO] checking memprint-0.2.0 against try#901e6d56697c79b2e80df6a487b2318ec6f57ee3 for pr-142287
[INFO] extracting crate memprint 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate memprint 0.2.0 on toolchain 901e6d56697c79b2e80df6a487b2318ec6f57ee3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate memprint 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate memprint 0.2.0
[INFO] tweaked toml for crates.io crate memprint 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate memprint 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memprint_derive v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20a372083e345f8af386b15c2eddb01426a3f4ff29138180cad61b325eb822b9
[INFO] running `Command { std: "docker" "start" "-a" "20a372083e345f8af386b15c2eddb01426a3f4ff29138180cad61b325eb822b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20a372083e345f8af386b15c2eddb01426a3f4ff29138180cad61b325eb822b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20a372083e345f8af386b15c2eddb01426a3f4ff29138180cad61b325eb822b9", kill_on_drop: false }`
[INFO] [stdout] 20a372083e345f8af386b15c2eddb01426a3f4ff29138180cad61b325eb822b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+901e6d56697c79b2e80df6a487b2318ec6f57ee3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74666b24c3538ce2d40cc3bc7fdcc7202094d1d27944beefc3cfba38c1507cda
[INFO] running `Command { std: "docker" "start" "-a" "74666b24c3538ce2d40cc3bc7fdcc7202094d1d27944beefc3cfba38c1507cda", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]     Checking colored v3.0.0
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.75
[INFO] [stderr]    Compiling memprint_derive v0.1.0
[INFO] [stderr]     Checking memprint v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0407]: method `get_fields` is not a member of trait `MemPrint`
[INFO] [stdout]  --> examples/dbg.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(MemPrint)]
[INFO] [stdout]   |          ^^^^^^^^ not a member of trait `MemPrint`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `MemPrint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0046]: not all trait items implemented, missing: `data_type`
[INFO] [stdout]  --> examples/dbg.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[derive(MemPrint)]
[INFO] [stdout]   |          ^^^^^^^^ missing `data_type` in implementation
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `MemPrint` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0046, E0407.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0046`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `memprint` (example "dbg") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "74666b24c3538ce2d40cc3bc7fdcc7202094d1d27944beefc3cfba38c1507cda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74666b24c3538ce2d40cc3bc7fdcc7202094d1d27944beefc3cfba38c1507cda", kill_on_drop: false }`
[INFO] [stdout] 74666b24c3538ce2d40cc3bc7fdcc7202094d1d27944beefc3cfba38c1507cda