[INFO] updating cached repository Satrige/backup-manager-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Satrige/backup-manager-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Satrige/backup-manager-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/Satrige/backup-manager-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Satrige/backup-manager-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Satrige/backup-manager-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Satrige/backup-manager-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Satrige/backup-manager-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4441b5dda4fda31e5d4a29fec3155e699ec3c24c
[INFO] sha for GitHub repo Satrige/backup-manager-rust: 4441b5dda4fda31e5d4a29fec3155e699ec3c24c
[INFO] validating manifest of Satrige/backup-manager-rust 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 Satrige/backup-manager-rust 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 Satrige/backup-manager-rust
[INFO] finished frobbing Satrige/backup-manager-rust
[INFO] frobbed toml for Satrige/backup-manager-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/Satrige/backup-manager-rust/Cargo.toml
[INFO] started frobbing Satrige/backup-manager-rust
[INFO] finished frobbing Satrige/backup-manager-rust
[INFO] frobbed toml for Satrige/backup-manager-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Satrige/backup-manager-rust/Cargo.toml
[INFO] crate Satrige/backup-manager-rust 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] [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 Satrige/backup-manager-rust 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Satrige/backup-manager-rust:/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] 7fcab43d2f60a872449eca4afb0abce760fc7e4ceea071b44b3411d47ba83453
[INFO] running `"docker" "start" "-a" "7fcab43d2f60a872449eca4afb0abce760fc7e4ceea071b44b3411d47ba83453"`
[INFO] [stderr]    Compiling backup v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0283]: type annotations required: cannot resolve `std::string::String: std::convert::From<&_>`
[INFO] [stderr]   --> src/main.rs:65:43
[INFO] [stderr]    |
[INFO] [stderr] 65 |                 cur_backup.arguments.push(String::from(params[i].as_ref()));
[INFO] [stderr]    |                                           ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: required by `std::convert::From::from`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0283`.
[INFO] [stderr] error: Could not compile `backup`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7fcab43d2f60a872449eca4afb0abce760fc7e4ceea071b44b3411d47ba83453"`
[INFO] running `"docker" "rm" "-f" "7fcab43d2f60a872449eca4afb0abce760fc7e4ceea071b44b3411d47ba83453"`
[INFO] [stdout] 7fcab43d2f60a872449eca4afb0abce760fc7e4ceea071b44b3411d47ba83453