[INFO] updating cached repository wenLiangcan/todo.rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/wenLiangcan/todo.rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/wenLiangcan/todo.rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/wenLiangcan/todo.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/wenLiangcan/todo.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/wenLiangcan/todo.rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wenLiangcan/todo.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wenLiangcan/todo.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bfbb07865826e6c03957814c39b3a4e001673f3a
[INFO] sha for GitHub repo wenLiangcan/todo.rs: bfbb07865826e6c03957814c39b3a4e001673f3a
[INFO] validating manifest of wenLiangcan/todo.rs 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 wenLiangcan/todo.rs 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 wenLiangcan/todo.rs
[INFO] finished frobbing wenLiangcan/todo.rs
[INFO] frobbed toml for wenLiangcan/todo.rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/wenLiangcan/todo.rs/Cargo.toml
[INFO] started frobbing wenLiangcan/todo.rs
[INFO] finished frobbing wenLiangcan/todo.rs
[INFO] frobbed toml for wenLiangcan/todo.rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/wenLiangcan/todo.rs/Cargo.toml
[INFO] crate wenLiangcan/todo.rs 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] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/wenLiangcan/todo.rs/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[INFO] the lockfile is outdated, regenerating it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" "+1.37.0" "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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing wenLiangcan/todo.rs 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/gh/wenLiangcan/todo.rs:/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] ae7887e3a673a2bab6e7696afc907576c3cda05c85af083c4a01a72c0428ddd7
[INFO] running `"docker" "start" "-a" "ae7887e3a673a2bab6e7696afc907576c3cda05c85af083c4a01a72c0428ddd7"`
[INFO] [stderr]    Compiling strsim v0.4.1
[INFO] [stderr]    Compiling ansi_term v0.7.5
[INFO] [stderr]    Compiling vec_map v0.4.0
[INFO] [stderr]    Compiling ansi_term v0.12.0
[INFO] [stderr]    Compiling clap v1.5.6
[INFO] [stderr]    Compiling todo v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unknown lint: `str_to_string`
[INFO] [stderr]    --> src/main.rs:231:9
[INFO] [stderr]     |
[INFO] [stderr] 231 | #[allow(str_to_string)]  // omit the warning of `str_to_string` caused by `clap`
[INFO] [stderr]     |         ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unknown_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]    --> src/main.rs:265:16
[INFO] [stderr]     |
[INFO] [stderr] 265 |     let path = env::home_dir().unwrap().join("todo.txt");
[INFO] [stderr]     |                ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.93s
[INFO] running `"docker" "inspect" "ae7887e3a673a2bab6e7696afc907576c3cda05c85af083c4a01a72c0428ddd7"`
[INFO] running `"docker" "rm" "-f" "ae7887e3a673a2bab6e7696afc907576c3cda05c85af083c4a01a72c0428ddd7"`
[INFO] [stdout] ae7887e3a673a2bab6e7696afc907576c3cda05c85af083c4a01a72c0428ddd7
[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/gh/wenLiangcan/todo.rs:/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] ad8f1912b213653d556a2dbbf97f502df0a14d58064572d70d3e9e8f7f5a239f
[INFO] running `"docker" "start" "-a" "ad8f1912b213653d556a2dbbf97f502df0a14d58064572d70d3e9e8f7f5a239f"`
[INFO] [stderr]    Compiling todo v0.2.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unknown lint: `str_to_string`
[INFO] [stderr]    --> src/main.rs:231:9
[INFO] [stderr]     |
[INFO] [stderr] 231 | #[allow(str_to_string)]  // omit the warning of `str_to_string` caused by `clap`
[INFO] [stderr]     |         ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unknown_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead.
[INFO] [stderr]    --> src/main.rs:265:16
[INFO] [stderr]     |
[INFO] [stderr] 265 |     let path = env::home_dir().unwrap().join("todo.txt");
[INFO] [stderr]     |                ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `"docker" "inspect" "ad8f1912b213653d556a2dbbf97f502df0a14d58064572d70d3e9e8f7f5a239f"`
[INFO] running `"docker" "rm" "-f" "ad8f1912b213653d556a2dbbf97f502df0a14d58064572d70d3e9e8f7f5a239f"`
[INFO] [stdout] ad8f1912b213653d556a2dbbf97f502df0a14d58064572d70d3e9e8f7f5a239f
[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/gh/wenLiangcan/todo.rs:/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] 9f16b9cb148353e55349557351d4bc99da2e990e6d71b01c6b3ff846a7af42bf
[INFO] running `"docker" "start" "-a" "9f16b9cb148353e55349557351d4bc99da2e990e6d71b01c6b3ff846a7af42bf"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/todo-e2e9dce11289f36f
[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" "9f16b9cb148353e55349557351d4bc99da2e990e6d71b01c6b3ff846a7af42bf"`
[INFO] running `"docker" "rm" "-f" "9f16b9cb148353e55349557351d4bc99da2e990e6d71b01c6b3ff846a7af42bf"`
[INFO] [stdout] 9f16b9cb148353e55349557351d4bc99da2e990e6d71b01c6b3ff846a7af42bf