[INFO] updating cached repository hawnzug/simple-type-infer
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/hawnzug/simple-type-infer
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/hawnzug/simple-type-infer" "work/ex/beta-1.37-6/sources/1.36.0/gh/hawnzug/simple-type-infer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/hawnzug/simple-type-infer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/hawnzug/simple-type-infer" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/hawnzug/simple-type-infer"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/hawnzug/simple-type-infer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 34873dd233261ff4fdd40c6ccdeb9e30206f7202
[INFO] sha for GitHub repo hawnzug/simple-type-infer: 34873dd233261ff4fdd40c6ccdeb9e30206f7202
[INFO] validating manifest of hawnzug/simple-type-infer on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of hawnzug/simple-type-infer on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing hawnzug/simple-type-infer
[INFO] finished frobbing hawnzug/simple-type-infer
[INFO] frobbed toml for hawnzug/simple-type-infer written to work/ex/beta-1.37-6/sources/1.36.0/gh/hawnzug/simple-type-infer/Cargo.toml
[INFO] started frobbing hawnzug/simple-type-infer
[INFO] finished frobbing hawnzug/simple-type-infer
[INFO] frobbed toml for hawnzug/simple-type-infer written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/hawnzug/simple-type-infer/Cargo.toml
[INFO] crate hawnzug/simple-type-infer already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/hawnzug/simple-type-infer/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing hawnzug/simple-type-infer against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/hawnzug/simple-type-infer:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 53c57ae4e639c52d1bd8898202ce37ad4e4fe54117e958ff60f7abb153e18a42
[INFO] running `"docker" "start" "-a" "53c57ae4e639c52d1bd8898202ce37ad4e4fe54117e958ff60f7abb153e18a42"`
[INFO] [stderr]    Compiling conv v0.3.3
[INFO] [stderr]    Compiling chomp v0.2.6
[INFO] [stderr]    Compiling type_infer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.48s
[INFO] running `"docker" "inspect" "53c57ae4e639c52d1bd8898202ce37ad4e4fe54117e958ff60f7abb153e18a42"`
[INFO] running `"docker" "rm" "-f" "53c57ae4e639c52d1bd8898202ce37ad4e4fe54117e958ff60f7abb153e18a42"`
[INFO] [stdout] 53c57ae4e639c52d1bd8898202ce37ad4e4fe54117e958ff60f7abb153e18a42
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/hawnzug/simple-type-infer:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 2ee1ef1e31ba2300c02a3f9e31a6bbdf60d073415a64101e5e863c014c916629
[INFO] running `"docker" "start" "-a" "2ee1ef1e31ba2300c02a3f9e31a6bbdf60d073415a64101e5e863c014c916629"`
[INFO] [stderr]    Compiling type_infer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `"docker" "inspect" "2ee1ef1e31ba2300c02a3f9e31a6bbdf60d073415a64101e5e863c014c916629"`
[INFO] running `"docker" "rm" "-f" "2ee1ef1e31ba2300c02a3f9e31a6bbdf60d073415a64101e5e863c014c916629"`
[INFO] [stdout] 2ee1ef1e31ba2300c02a3f9e31a6bbdf60d073415a64101e5e863c014c916629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/hawnzug/simple-type-infer:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 6f5bcda9a292cc698a756593700a6eb42f366c1d16e5c1e95e59d4f41f8ac86e
[INFO] running `"docker" "start" "-a" "6f5bcda9a292cc698a756593700a6eb42f366c1d16e5c1e95e59d4f41f8ac86e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/type_infer-f99c40a900c6c6e1
[INFO] [stdout] running 1 test
[INFO] [stdout] test eval::test_lookup ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "6f5bcda9a292cc698a756593700a6eb42f366c1d16e5c1e95e59d4f41f8ac86e"`
[INFO] running `"docker" "rm" "-f" "6f5bcda9a292cc698a756593700a6eb42f366c1d16e5c1e95e59d4f41f8ac86e"`
[INFO] [stdout] 6f5bcda9a292cc698a756593700a6eb42f366c1d16e5c1e95e59d4f41f8ac86e