[INFO] updating cached repository josler/checkdir
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/josler/checkdir
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/josler/checkdir" "work/ex/beta-1.38-1/sources/1.37.0/gh/josler/checkdir"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/josler/checkdir'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/josler/checkdir" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/josler/checkdir"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/josler/checkdir'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a7a5c3fd831c2d151d897a4b8743ef114050d846
[INFO] sha for GitHub repo josler/checkdir: a7a5c3fd831c2d151d897a4b8743ef114050d846
[INFO] validating manifest of josler/checkdir 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 josler/checkdir 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 josler/checkdir
[INFO] finished frobbing josler/checkdir
[INFO] frobbed toml for josler/checkdir written to work/ex/beta-1.38-1/sources/1.37.0/gh/josler/checkdir/Cargo.toml
[INFO] started frobbing josler/checkdir
[INFO] finished frobbing josler/checkdir
[INFO] frobbed toml for josler/checkdir written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/josler/checkdir/Cargo.toml
[INFO] crate josler/checkdir already has a lockfile, it will not be regenerated
[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 josler/checkdir 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/gh/josler/checkdir:/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] 744a9024f8d27afd8aee4fafa4a0f89480a08bd3f6ed98925981da15724fdec0
[INFO] running `"docker" "start" "-a" "744a9024f8d27afd8aee4fafa4a0f89480a08bd3f6ed98925981da15724fdec0"`
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling gumdrop_derive v0.5.0
[INFO] [stderr]    Compiling gumdrop v0.5.0
[INFO] [stderr]    Compiling checkdir v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `ErrorKind`
[INFO] [stderr]  --> src/main.rs:5:21
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::errors::{ErrorKind, SyncError};
[INFO] [stderr]   |                     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `into_kind`
[INFO] [stderr]   --> src/errors.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn into_kind(self) -> ErrorKind {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.41s
[INFO] running `"docker" "inspect" "744a9024f8d27afd8aee4fafa4a0f89480a08bd3f6ed98925981da15724fdec0"`
[INFO] running `"docker" "rm" "-f" "744a9024f8d27afd8aee4fafa4a0f89480a08bd3f6ed98925981da15724fdec0"`
[INFO] [stdout] 744a9024f8d27afd8aee4fafa4a0f89480a08bd3f6ed98925981da15724fdec0
[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/gh/josler/checkdir:/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] bf8a32e71e910bdfe3243db390607cab8af26a1d02ad2d5fcbb80e13089c103b
[INFO] running `"docker" "start" "-a" "bf8a32e71e910bdfe3243db390607cab8af26a1d02ad2d5fcbb80e13089c103b"`
[INFO] [stderr]    Compiling checkdir v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `ErrorKind`
[INFO] [stderr]  --> src/main.rs:5:21
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::errors::{ErrorKind, SyncError};
[INFO] [stderr]   |                     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `into_kind`
[INFO] [stderr]   --> src/errors.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn into_kind(self) -> ErrorKind {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `"docker" "inspect" "bf8a32e71e910bdfe3243db390607cab8af26a1d02ad2d5fcbb80e13089c103b"`
[INFO] running `"docker" "rm" "-f" "bf8a32e71e910bdfe3243db390607cab8af26a1d02ad2d5fcbb80e13089c103b"`
[INFO] [stdout] bf8a32e71e910bdfe3243db390607cab8af26a1d02ad2d5fcbb80e13089c103b
[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/gh/josler/checkdir:/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] ea976bf6fecc10241a91284b2eb79d57cae411aa0d45334fdd6403d730960745
[INFO] running `"docker" "start" "-a" "ea976bf6fecc10241a91284b2eb79d57cae411aa0d45334fdd6403d730960745"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/checkdir-c30724a50f20ab83
[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" "ea976bf6fecc10241a91284b2eb79d57cae411aa0d45334fdd6403d730960745"`
[INFO] running `"docker" "rm" "-f" "ea976bf6fecc10241a91284b2eb79d57cae411aa0d45334fdd6403d730960745"`
[INFO] [stdout] ea976bf6fecc10241a91284b2eb79d57cae411aa0d45334fdd6403d730960745