[INFO] crate packing 0.1.0 is already in cache
[INFO] testing packing-0.1.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate packing 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate packing 0.1.0 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 packing 0.1.0
[INFO] finished tweaking crates.io crate packing 0.1.0
[INFO] tweaked toml for crates.io crate packing 0.1.0 written to /workspace/builds/worker-1/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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] d32bc3799e5d623bc20492fa611bff757c73e2aff2889560a51ddcf1dfd30076
[INFO] running `"docker" "start" "-a" "d32bc3799e5d623bc20492fa611bff757c73e2aff2889560a51ddcf1dfd30076"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling packing_codegen v0.1.0
[INFO] [stderr]    Compiling packing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.28s
[INFO] running `"docker" "inspect" "d32bc3799e5d623bc20492fa611bff757c73e2aff2889560a51ddcf1dfd30076"`
[INFO] running `"docker" "rm" "-f" "d32bc3799e5d623bc20492fa611bff757c73e2aff2889560a51ddcf1dfd30076"`
[INFO] [stdout] d32bc3799e5d623bc20492fa611bff757c73e2aff2889560a51ddcf1dfd30076
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 89a2b58d1213f5ccfeded0fea18badac113aafabaa4334c77cf1582cadc3cf33
[INFO] running `"docker" "start" "-a" "89a2b58d1213f5ccfeded0fea18badac113aafabaa4334c77cf1582cadc3cf33"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling packing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/lib.rs:2:19
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![cfg_attr(test, feature(test))]
[INFO] [stderr]   |                   ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/lib.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `merge_field` found for enum `endian::little::LittleEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:225:23
[INFO] [stderr]     |
[INFO] [stderr] 225 |         LittleEndian::merge_field::<U6, U1, U1>(&src, &mut dst);
[INFO] [stderr]     |                       ^^^^^^^^^^^ variant or associated item not found in `endian::little::LittleEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/little.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum LittleEndian {}
[INFO] [stderr]     | --------------------- variant or associated item `merge_field` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `merge_field` found for enum `endian::little::LittleEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:231:23
[INFO] [stderr]     |
[INFO] [stderr] 231 |         LittleEndian::merge_field::<U6, U1, U1>(&src, &mut dst);
[INFO] [stderr]     |                       ^^^^^^^^^^^ variant or associated item not found in `endian::little::LittleEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/little.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum LittleEndian {}
[INFO] [stderr]     | --------------------- variant or associated item `merge_field` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `merge_field` found for enum `endian::little::LittleEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:254:23
[INFO] [stderr]     |
[INFO] [stderr] 254 |         LittleEndian::merge_field::<U6, U1, U4>(&src, &mut dst);
[INFO] [stderr]     |                       ^^^^^^^^^^^ variant or associated item not found in `endian::little::LittleEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/little.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum LittleEndian {}
[INFO] [stderr]     | --------------------- variant or associated item `merge_field` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `merge_field` found for enum `endian::little::LittleEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:275:23
[INFO] [stderr]     |
[INFO] [stderr] 275 |         LittleEndian::merge_field::<U6, U1, U2>(&src, &mut dst);
[INFO] [stderr]     |                       ^^^^^^^^^^^ variant or associated item not found in `endian::little::LittleEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/little.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum LittleEndian {}
[INFO] [stderr]     | --------------------- variant or associated item `merge_field` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `merge_field` found for enum `endian::big::BigEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:296:20
[INFO] [stderr]     |
[INFO] [stderr] 296 |         BigEndian::merge_field::<U6, U1, U1>(&src, &mut dst);
[INFO] [stderr]     |                    ^^^^^^^^^^^ variant or associated item not found in `endian::big::BigEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/big.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum BigEndian {}
[INFO] [stderr]     | ------------------ variant or associated item `merge_field` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `merge_field` found for enum `endian::big::BigEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:302:20
[INFO] [stderr]     |
[INFO] [stderr] 302 |         BigEndian::merge_field::<U6, U1, U1>(&src, &mut dst);
[INFO] [stderr]     |                    ^^^^^^^^^^^ variant or associated item not found in `endian::big::BigEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/big.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum BigEndian {}
[INFO] [stderr]     | ------------------ variant or associated item `merge_field` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `merge_field` found for enum `endian::big::BigEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:325:20
[INFO] [stderr]     |
[INFO] [stderr] 325 |         BigEndian::merge_field::<U6, U1, U4>(&src, &mut dst);
[INFO] [stderr]     |                    ^^^^^^^^^^^ variant or associated item not found in `endian::big::BigEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/big.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum BigEndian {}
[INFO] [stderr]     | ------------------ variant or associated item `merge_field` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `merge_field` found for enum `endian::big::BigEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:354:20
[INFO] [stderr]     |
[INFO] [stderr] 354 |         BigEndian::merge_field::<U6, U1, U2>(&src, &mut dst);
[INFO] [stderr]     |                    ^^^^^^^^^^^ variant or associated item not found in `endian::big::BigEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/big.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum BigEndian {}
[INFO] [stderr]     | ------------------ variant or associated item `merge_field` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `align_bytes` found for enum `endian::little::LittleEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:387:23
[INFO] [stderr]     |
[INFO] [stderr] 387 |         LittleEndian::align_bytes::<U4, U3>(&mut b1);
[INFO] [stderr]     |                       ^^^^^^^^^^^ variant or associated item not found in `endian::little::LittleEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/little.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum LittleEndian {}
[INFO] [stderr]     | --------------------- variant or associated item `align_bytes` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `align_bytes` found for enum `endian::little::LittleEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:390:23
[INFO] [stderr]     |
[INFO] [stderr] 390 |         LittleEndian::align_bytes::<U4, U3>(&mut b2);
[INFO] [stderr]     |                       ^^^^^^^^^^^ variant or associated item not found in `endian::little::LittleEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/little.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum LittleEndian {}
[INFO] [stderr]     | --------------------- variant or associated item `align_bytes` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `unalign_bytes` found for enum `endian::little::LittleEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:393:23
[INFO] [stderr]     |
[INFO] [stderr] 393 |         LittleEndian::unalign_bytes::<U4, U3>(&mut b1);
[INFO] [stderr]     |                       ^^^^^^^^^^^^^ variant or associated item not found in `endian::little::LittleEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/little.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum LittleEndian {}
[INFO] [stderr]     | --------------------- variant or associated item `unalign_bytes` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `unalign_bytes` found for enum `endian::little::LittleEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:396:23
[INFO] [stderr]     |
[INFO] [stderr] 396 |         LittleEndian::unalign_bytes::<U4, U3>(&mut b2);
[INFO] [stderr]     |                       ^^^^^^^^^^^^^ variant or associated item not found in `endian::little::LittleEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/little.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum LittleEndian {}
[INFO] [stderr]     | --------------------- variant or associated item `unalign_bytes` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `align_bytes` found for enum `endian::little::LittleEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:421:23
[INFO] [stderr]     |
[INFO] [stderr] 421 |         LittleEndian::align_bytes::<U4, U3>(&mut b1);
[INFO] [stderr]     |                       ^^^^^^^^^^^ variant or associated item not found in `endian::little::LittleEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/little.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum LittleEndian {}
[INFO] [stderr]     | --------------------- variant or associated item `align_bytes` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `align_bytes` found for enum `endian::little::LittleEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:424:23
[INFO] [stderr]     |
[INFO] [stderr] 424 |         LittleEndian::align_bytes::<U4, U3>(&mut b2);
[INFO] [stderr]     |                       ^^^^^^^^^^^ variant or associated item not found in `endian::little::LittleEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/little.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum LittleEndian {}
[INFO] [stderr]     | --------------------- variant or associated item `align_bytes` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `unalign_bytes` found for enum `endian::little::LittleEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:427:23
[INFO] [stderr]     |
[INFO] [stderr] 427 |         LittleEndian::unalign_bytes::<U4, U3>(&mut b1);
[INFO] [stderr]     |                       ^^^^^^^^^^^^^ variant or associated item not found in `endian::little::LittleEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/little.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum LittleEndian {}
[INFO] [stderr]     | --------------------- variant or associated item `unalign_bytes` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `unalign_bytes` found for enum `endian::little::LittleEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:436:23
[INFO] [stderr]     |
[INFO] [stderr] 436 |         LittleEndian::unalign_bytes::<U4, U3>(&mut b2);
[INFO] [stderr]     |                       ^^^^^^^^^^^^^ variant or associated item not found in `endian::little::LittleEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/little.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum LittleEndian {}
[INFO] [stderr]     | --------------------- variant or associated item `unalign_bytes` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `align_bytes` found for enum `endian::big::BigEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:464:20
[INFO] [stderr]     |
[INFO] [stderr] 464 |         BigEndian::align_bytes::<U4, U3>(&mut b1);
[INFO] [stderr]     |                    ^^^^^^^^^^^ variant or associated item not found in `endian::big::BigEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/big.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum BigEndian {}
[INFO] [stderr]     | ------------------ variant or associated item `align_bytes` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `align_bytes` found for enum `endian::big::BigEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:467:20
[INFO] [stderr]     |
[INFO] [stderr] 467 |         BigEndian::align_bytes::<U4, U3>(&mut b2);
[INFO] [stderr]     |                    ^^^^^^^^^^^ variant or associated item not found in `endian::big::BigEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/big.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum BigEndian {}
[INFO] [stderr]     | ------------------ variant or associated item `align_bytes` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `unalign_bytes` found for enum `endian::big::BigEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:470:20
[INFO] [stderr]     |
[INFO] [stderr] 470 |         BigEndian::unalign_bytes::<U4, U3>(&mut b1);
[INFO] [stderr]     |                    ^^^^^^^^^^^^^ variant or associated item not found in `endian::big::BigEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/big.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum BigEndian {}
[INFO] [stderr]     | ------------------ variant or associated item `unalign_bytes` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `unalign_bytes` found for enum `endian::big::BigEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:479:20
[INFO] [stderr]     |
[INFO] [stderr] 479 |         BigEndian::unalign_bytes::<U4, U3>(&mut b2);
[INFO] [stderr]     |                    ^^^^^^^^^^^^^ variant or associated item not found in `endian::big::BigEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/big.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum BigEndian {}
[INFO] [stderr]     | ------------------ variant or associated item `unalign_bytes` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `align_bytes` found for enum `endian::big::BigEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:504:20
[INFO] [stderr]     |
[INFO] [stderr] 504 |         BigEndian::align_bytes::<U4, U3>(&mut b1);
[INFO] [stderr]     |                    ^^^^^^^^^^^ variant or associated item not found in `endian::big::BigEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/big.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum BigEndian {}
[INFO] [stderr]     | ------------------ variant or associated item `align_bytes` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `align_bytes` found for enum `endian::big::BigEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:507:20
[INFO] [stderr]     |
[INFO] [stderr] 507 |         BigEndian::align_bytes::<U4, U3>(&mut b2);
[INFO] [stderr]     |                    ^^^^^^^^^^^ variant or associated item not found in `endian::big::BigEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/big.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum BigEndian {}
[INFO] [stderr]     | ------------------ variant or associated item `align_bytes` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `unalign_bytes` found for enum `endian::big::BigEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:510:20
[INFO] [stderr]     |
[INFO] [stderr] 510 |         BigEndian::unalign_bytes::<U4, U3>(&mut b1);
[INFO] [stderr]     |                    ^^^^^^^^^^^^^ variant or associated item not found in `endian::big::BigEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/big.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum BigEndian {}
[INFO] [stderr]     | ------------------ variant or associated item `unalign_bytes` not found here
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `unalign_bytes` found for enum `endian::big::BigEndian` in the current scope
[INFO] [stderr]    --> src/endian/mod.rs:520:20
[INFO] [stderr]     |
[INFO] [stderr] 520 |         BigEndian::unalign_bytes::<U4, U3>(&mut b2);
[INFO] [stderr]     |                    ^^^^^^^^^^^^^ variant or associated item not found in `endian::big::BigEndian`
[INFO] [stderr]     | 
[INFO] [stderr]    ::: src/endian/big.rs:9:1
[INFO] [stderr]     |
[INFO] [stderr] 9   | pub enum BigEndian {}
[INFO] [stderr]     | ------------------ variant or associated item `unalign_bytes` not found here
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 25 previous errors; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0554, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `packing`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "89a2b58d1213f5ccfeded0fea18badac113aafabaa4334c77cf1582cadc3cf33"`
[INFO] running `"docker" "rm" "-f" "89a2b58d1213f5ccfeded0fea18badac113aafabaa4334c77cf1582cadc3cf33"`
[INFO] [stdout] 89a2b58d1213f5ccfeded0fea18badac113aafabaa4334c77cf1582cadc3cf33