[INFO] crate prost-amino-derive 0.4.0 is already in cache
[INFO] extracting crate prost-amino-derive 0.4.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/prost-amino-derive/0.4.0
[INFO] extracting crate prost-amino-derive 0.4.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/prost-amino-derive/0.4.0
[INFO] validating manifest of prost-amino-derive-0.4.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of prost-amino-derive-0.4.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing prost-amino-derive-0.4.0
[INFO] finished frobbing prost-amino-derive-0.4.0
[INFO] frobbed toml for prost-amino-derive-0.4.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/prost-amino-derive/0.4.0/Cargo.toml
[INFO] started frobbing prost-amino-derive-0.4.0
[INFO] finished frobbing prost-amino-derive-0.4.0
[INFO] frobbed toml for prost-amino-derive-0.4.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/prost-amino-derive/0.4.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing prost-amino-derive-0.4.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/prost-amino-derive/0.4.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 8fa5e7b8417f3cfe1952595b9401523f753825086cc966bd858904708a20aad5
[INFO] running `"docker" "start" "-a" "8fa5e7b8417f3cfe1952595b9401523f753825086cc966bd858904708a20aad5"`
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling prost-amino-derive v0.4.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.11s
[INFO] running `"docker" "inspect" "8fa5e7b8417f3cfe1952595b9401523f753825086cc966bd858904708a20aad5"`
[INFO] running `"docker" "rm" "-f" "8fa5e7b8417f3cfe1952595b9401523f753825086cc966bd858904708a20aad5"`
[INFO] [stdout] 8fa5e7b8417f3cfe1952595b9401523f753825086cc966bd858904708a20aad5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/prost-amino-derive/0.4.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 558d5c02048a44160fbc7bd3d3b908cf2fdd5a66f8d84eb084d640b472670e82
[INFO] running `"docker" "start" "-a" "558d5c02048a44160fbc7bd3d3b908cf2fdd5a66f8d84eb084d640b472670e82"`
[INFO] [stderr]    Compiling prost-amino-derive v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::fmt`
[INFO] [stderr]    --> src/lib.rs:579:9
[INFO] [stderr]     |
[INFO] [stderr] 579 |     use std::fmt;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error`
[INFO] [stderr]    --> src/lib.rs:581:9
[INFO] [stderr]     |
[INFO] [stderr] 581 |     use std::error;
[INFO] [stderr]     |         ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.42s
[INFO] running `"docker" "inspect" "558d5c02048a44160fbc7bd3d3b908cf2fdd5a66f8d84eb084d640b472670e82"`
[INFO] running `"docker" "rm" "-f" "558d5c02048a44160fbc7bd3d3b908cf2fdd5a66f8d84eb084d640b472670e82"`
[INFO] [stdout] 558d5c02048a44160fbc7bd3d3b908cf2fdd5a66f8d84eb084d640b472670e82
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/prost-amino-derive/0.4.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 303ebe394df0f77e15839b5429b31e148f1cff0d819a7bc8b1dbc6137506f2a9
[INFO] running `"docker" "start" "-a" "303ebe394df0f77e15839b5429b31e148f1cff0d819a7bc8b1dbc6137506f2a9"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/prost_amino_derive-618ee26ed8adaa69
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::compare_to_go_amino ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests prost-amino-derive
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "303ebe394df0f77e15839b5429b31e148f1cff0d819a7bc8b1dbc6137506f2a9"`
[INFO] running `"docker" "rm" "-f" "303ebe394df0f77e15839b5429b31e148f1cff0d819a7bc8b1dbc6137506f2a9"`
[INFO] [stdout] 303ebe394df0f77e15839b5429b31e148f1cff0d819a7bc8b1dbc6137506f2a9