[INFO] crate rust_multicodec 0.2.0 is already in cache
[INFO] testing rust_multicodec-0.2.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate rust_multicodec 0.2.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate rust_multicodec 0.2.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rust_multicodec 0.2.0
[INFO] finished tweaking crates.io crate rust_multicodec 0.2.0
[INFO] tweaked toml for crates.io crate rust_multicodec 0.2.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 20d63bd04e1d963abdf2cfcd3b7d3efc93d84aea41f19e59aa229931ddefcb1b
[INFO] running `"docker" "start" "-a" "20d63bd04e1d963abdf2cfcd3b7d3efc93d84aea41f19e59aa229931ddefcb1b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling hex-slice v0.1.4
[INFO] [stderr]    Compiling integer-encoding v1.1.5
[INFO] [stderr]    Compiling rust_multicodec v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]   --> src/lib.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::str;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `decode_var_vec` found for type `u64` in the current scope
[INFO] [stderr]   --> src/codec_prefix.rs:65:34
[INFO] [stderr]    |
[INFO] [stderr] 65 |     let decoded:(u64,usize)=u64::decode_var_vec(&Vec::from(data));
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^ function or associated item not found in `u64`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `decode_var_vec` found for type `u64` in the current scope
[INFO] [stderr]   --> src/codec_prefix.rs:97:34
[INFO] [stderr]    |
[INFO] [stderr] 97 |     let decoded:(u64,usize)=u64::decode_var_vec(&Vec::from(data));
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^ function or associated item not found in `u64`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `rust_multicodec`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "20d63bd04e1d963abdf2cfcd3b7d3efc93d84aea41f19e59aa229931ddefcb1b"`
[INFO] running `"docker" "rm" "-f" "20d63bd04e1d963abdf2cfcd3b7d3efc93d84aea41f19e59aa229931ddefcb1b"`
[INFO] [stdout] 20d63bd04e1d963abdf2cfcd3b7d3efc93d84aea41f19e59aa229931ddefcb1b