[INFO] crate aoc_codegen 0.1.0 is already in cache
[INFO] extracting crate aoc_codegen 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/aoc_codegen/0.1.0
[INFO] extracting crate aoc_codegen 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/aoc_codegen/0.1.0
[INFO] validating manifest of aoc_codegen-0.1.0 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 aoc_codegen-0.1.0 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 aoc_codegen-0.1.0
[INFO] finished frobbing aoc_codegen-0.1.0
[INFO] frobbed toml for aoc_codegen-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/aoc_codegen/0.1.0/Cargo.toml
[INFO] started frobbing aoc_codegen-0.1.0
[INFO] finished frobbing aoc_codegen-0.1.0
[INFO] frobbed toml for aoc_codegen-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/aoc_codegen/0.1.0/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing aoc_codegen-0.1.0 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/aoc_codegen/0.1.0:/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] 81a7f0663c86ed90445faaf849b6218752bc1307540de074d59c34bd978a16db
[INFO] running `"docker" "start" "-a" "81a7f0663c86ed90445faaf849b6218752bc1307540de074d59c34bd978a16db"`
[INFO] [stderr]    Compiling aoc_codegen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `FnArg`
[INFO] [stderr]  --> src/lib.rs:6:71
[INFO] [stderr]   |
[INFO] [stderr] 6 | use syn::{parse, parse::Parser, punctuated::Punctuated, Expr, ItemFn, FnArg};
[INFO] [stderr]   |                                                                       ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.04s
[INFO] running `"docker" "inspect" "81a7f0663c86ed90445faaf849b6218752bc1307540de074d59c34bd978a16db"`
[INFO] running `"docker" "rm" "-f" "81a7f0663c86ed90445faaf849b6218752bc1307540de074d59c34bd978a16db"`
[INFO] [stdout] 81a7f0663c86ed90445faaf849b6218752bc1307540de074d59c34bd978a16db
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/aoc_codegen/0.1.0:/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] b51f1a7fa4060d7e119077761e3a314902cada114fe3afa5c3517cfae80599e3
[INFO] running `"docker" "start" "-a" "b51f1a7fa4060d7e119077761e3a314902cada114fe3afa5c3517cfae80599e3"`
[INFO] [stderr]    Compiling aoc_codegen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `FnArg`
[INFO] [stderr]  --> src/lib.rs:6:71
[INFO] [stderr]   |
[INFO] [stderr] 6 | use syn::{parse, parse::Parser, punctuated::Punctuated, Expr, ItemFn, FnArg};
[INFO] [stderr]   |                                                                       ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `"docker" "inspect" "b51f1a7fa4060d7e119077761e3a314902cada114fe3afa5c3517cfae80599e3"`
[INFO] running `"docker" "rm" "-f" "b51f1a7fa4060d7e119077761e3a314902cada114fe3afa5c3517cfae80599e3"`
[INFO] [stdout] b51f1a7fa4060d7e119077761e3a314902cada114fe3afa5c3517cfae80599e3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/aoc_codegen/0.1.0:/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] 77e6fe6a0b6ec852c84c2c8059700be0dafc765c82eddee8c5a46389ce61435d
[INFO] running `"docker" "start" "-a" "77e6fe6a0b6ec852c84c2c8059700be0dafc765c82eddee8c5a46389ce61435d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/aoc_codegen-ea3ca21e3fc31a0b
[INFO] [stderr]    Doc-tests aoc_codegen
[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] [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" "77e6fe6a0b6ec852c84c2c8059700be0dafc765c82eddee8c5a46389ce61435d"`
[INFO] running `"docker" "rm" "-f" "77e6fe6a0b6ec852c84c2c8059700be0dafc765c82eddee8c5a46389ce61435d"`
[INFO] [stdout] 77e6fe6a0b6ec852c84c2c8059700be0dafc765c82eddee8c5a46389ce61435d