[INFO] updating cached repository mfeckie/rusty-todo
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mfeckie/rusty-todo
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mfeckie/rusty-todo" "work/ex/beta-1.37-6/sources/1.36.0/gh/mfeckie/rusty-todo"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/mfeckie/rusty-todo'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mfeckie/rusty-todo" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mfeckie/rusty-todo"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mfeckie/rusty-todo'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 51585a841811903ec97fbd2bc912a689a26d18fc
[INFO] sha for GitHub repo mfeckie/rusty-todo: 51585a841811903ec97fbd2bc912a689a26d18fc
[INFO] validating manifest of mfeckie/rusty-todo 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 mfeckie/rusty-todo 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 mfeckie/rusty-todo
[INFO] finished frobbing mfeckie/rusty-todo
[INFO] frobbed toml for mfeckie/rusty-todo written to work/ex/beta-1.37-6/sources/1.36.0/gh/mfeckie/rusty-todo/Cargo.toml
[INFO] started frobbing mfeckie/rusty-todo
[INFO] finished frobbing mfeckie/rusty-todo
[INFO] frobbed toml for mfeckie/rusty-todo written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mfeckie/rusty-todo/Cargo.toml
[INFO] crate mfeckie/rusty-todo 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/mfeckie/rusty-todo/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[INFO] the lockfile is outdated, regenerating it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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing mfeckie/rusty-todo 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-1/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/mfeckie/rusty-todo:/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] 0e452e4de4af0a2cf7beef992a1fee200a0e6978ca8b16d57c168eecd22ce8a8
[INFO] running `"docker" "start" "-a" "0e452e4de4af0a2cf7beef992a1fee200a0e6978ca8b16d57c168eecd22ce8a8"`
[INFO] [stderr]    Compiling todo v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io::Error`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `"docker" "inspect" "0e452e4de4af0a2cf7beef992a1fee200a0e6978ca8b16d57c168eecd22ce8a8"`
[INFO] running `"docker" "rm" "-f" "0e452e4de4af0a2cf7beef992a1fee200a0e6978ca8b16d57c168eecd22ce8a8"`
[INFO] [stdout] 0e452e4de4af0a2cf7beef992a1fee200a0e6978ca8b16d57c168eecd22ce8a8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/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/mfeckie/rusty-todo:/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] 49747fe72cfe5b168e7f05d1bb0af0be43840c3aa4728111ec168a49a37512a4
[INFO] running `"docker" "start" "-a" "49747fe72cfe5b168e7f05d1bb0af0be43840c3aa4728111ec168a49a37512a4"`
[INFO] [stderr]    Compiling todo v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io::Error`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `"docker" "inspect" "49747fe72cfe5b168e7f05d1bb0af0be43840c3aa4728111ec168a49a37512a4"`
[INFO] running `"docker" "rm" "-f" "49747fe72cfe5b168e7f05d1bb0af0be43840c3aa4728111ec168a49a37512a4"`
[INFO] [stdout] 49747fe72cfe5b168e7f05d1bb0af0be43840c3aa4728111ec168a49a37512a4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/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/mfeckie/rusty-todo:/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] ebc714e9ac993bdb2aeafec370ffbd159b0ba181bb8957b9cbda551aa6a09025
[INFO] running `"docker" "start" "-a" "ebc714e9ac993bdb2aeafec370ffbd159b0ba181bb8957b9cbda551aa6a09025"`
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 3 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/todo-242f130644d14fb7
[INFO] [stdout] test add_a_task ... ok
[INFO] [stdout] test todo_collection ... ok
[INFO] [stdout] test create_a_new_task ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "ebc714e9ac993bdb2aeafec370ffbd159b0ba181bb8957b9cbda551aa6a09025"`
[INFO] running `"docker" "rm" "-f" "ebc714e9ac993bdb2aeafec370ffbd159b0ba181bb8957b9cbda551aa6a09025"`
[INFO] [stdout] ebc714e9ac993bdb2aeafec370ffbd159b0ba181bb8957b9cbda551aa6a09025