[INFO] fetching crate sampi 0.1.24...
[INFO] checking sampi-0.1.24 against master#3dbade652ed8ebac70f903e01f51cd92c4e4302c for pr-69880
[INFO] extracting crate sampi 0.1.24 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate sampi 0.1.24 on toolchain 3dbade652ed8ebac70f903e01f51cd92c4e4302c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate sampi 0.1.24
[INFO] finished tweaking crates.io crate sampi 0.1.24
[INFO] tweaked toml for crates.io crate sampi 0.1.24 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate sampi 0.1.24 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 58300a2ef3a304550e5deaaa47e4234fd8f74ee180e5fd3d7dde1ece1a2553c4
[INFO] running `"docker" "start" "-a" "58300a2ef3a304550e5deaaa47e4234fd8f74ee180e5fd3d7dde1ece1a2553c4"`
[INFO] [stderr]    Compiling serde-big-array v0.1.5
[INFO] [stderr]     Checking strum v0.17.1
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking curve25519-dalek v2.0.0
[INFO] [stderr]    Compiling strum_macros v0.17.1
[INFO] [stderr]    Compiling structopt-derive v0.4.4
[INFO] [stderr]     Checking rust-base58 v0.0.4
[INFO] [stderr]     Checking ed25519-dalek v1.0.0-pre.3
[INFO] [stderr]     Checking structopt v0.3.11
[INFO] [stderr]     Checking sampi v0.1.24 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0599]: no method named `with_metadata` found for struct `sampi::SampiBuilder<'_>` in the current scope
[INFO] [stderr]   --> examples/iter.rs:13:14
[INFO] [stderr]    |
[INFO] [stderr] 13 |             .with_metadata(previous_hash)
[INFO] [stderr]    |              ^^^^^^^^^^^^^ method not found in `sampi::SampiBuilder<'_>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `sampi`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "58300a2ef3a304550e5deaaa47e4234fd8f74ee180e5fd3d7dde1ece1a2553c4"`
[INFO] running `"docker" "rm" "-f" "58300a2ef3a304550e5deaaa47e4234fd8f74ee180e5fd3d7dde1ece1a2553c4"`
[INFO] [stdout] 58300a2ef3a304550e5deaaa47e4234fd8f74ee180e5fd3d7dde1ece1a2553c4