[INFO] updating cached repository emgyrz/tagger
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/emgyrz/tagger
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/emgyrz/tagger" "work/ex/beta-1.38-1/sources/1.37.0/gh/emgyrz/tagger"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/emgyrz/tagger'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/emgyrz/tagger" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/emgyrz/tagger"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/emgyrz/tagger'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d26e330c3d52321f4a1d8cc34c298253b45ce40f
[INFO] sha for GitHub repo emgyrz/tagger: d26e330c3d52321f4a1d8cc34c298253b45ce40f
[INFO] validating manifest of emgyrz/tagger 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 emgyrz/tagger 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 emgyrz/tagger
[INFO] finished frobbing emgyrz/tagger
[INFO] frobbed toml for emgyrz/tagger written to work/ex/beta-1.38-1/sources/1.37.0/gh/emgyrz/tagger/Cargo.toml
[INFO] started frobbing emgyrz/tagger
[INFO] finished frobbing emgyrz/tagger
[INFO] frobbed toml for emgyrz/tagger written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/emgyrz/tagger/Cargo.toml
[INFO] crate emgyrz/tagger 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 emgyrz/tagger against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/emgyrz/tagger:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 91719748fbdfe66ca8d191685b11f3e9b46768a5216d7f07abab6baf92be513d
[INFO] running `"docker" "start" "-a" "91719748fbdfe66ca8d191685b11f3e9b46768a5216d7f07abab6baf92be513d"`
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libssh2-sys v0.2.11
[INFO] [stderr]    Compiling libgit2-sys v0.8.0
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling dirs-sys v0.3.3
[INFO] [stderr]    Compiling dirs v2.0.1
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling git2 v0.9.0
[INFO] [stderr]    Compiling tagger v1.0.5 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/args.rs:42:41
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn parse_args() -> Result<Args, Box<std::error::Error>> {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:17:29
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn main() -> Result<(), Box<Error>> {
[INFO] [stderr]    |                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 35s
[INFO] running `"docker" "inspect" "91719748fbdfe66ca8d191685b11f3e9b46768a5216d7f07abab6baf92be513d"`
[INFO] running `"docker" "rm" "-f" "91719748fbdfe66ca8d191685b11f3e9b46768a5216d7f07abab6baf92be513d"`
[INFO] [stdout] 91719748fbdfe66ca8d191685b11f3e9b46768a5216d7f07abab6baf92be513d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/emgyrz/tagger:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4fdfb490b7fd9399a33839aedf1414ba0f5f019bc51746632e05d85ceee29a25
[INFO] running `"docker" "start" "-a" "4fdfb490b7fd9399a33839aedf1414ba0f5f019bc51746632e05d85ceee29a25"`
[INFO] [stderr]    Compiling tagger v1.0.5 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/args.rs:42:41
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn parse_args() -> Result<Args, Box<std::error::Error>> {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:17:29
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn main() -> Result<(), Box<Error>> {
[INFO] [stderr]    |                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `"docker" "inspect" "4fdfb490b7fd9399a33839aedf1414ba0f5f019bc51746632e05d85ceee29a25"`
[INFO] running `"docker" "rm" "-f" "4fdfb490b7fd9399a33839aedf1414ba0f5f019bc51746632e05d85ceee29a25"`
[INFO] [stdout] 4fdfb490b7fd9399a33839aedf1414ba0f5f019bc51746632e05d85ceee29a25
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/emgyrz/tagger:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] a41bb539081d96cf4aff85b4a9fc0634b8695dcb75a8dc33e079841692583728
[INFO] running `"docker" "start" "-a" "a41bb539081d96cf4aff85b4a9fc0634b8695dcb75a8dc33e079841692583728"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tagger-0ff7c9defe73a6b2
[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" "a41bb539081d96cf4aff85b4a9fc0634b8695dcb75a8dc33e079841692583728"`
[INFO] running `"docker" "rm" "-f" "a41bb539081d96cf4aff85b4a9fc0634b8695dcb75a8dc33e079841692583728"`
[INFO] [stdout] a41bb539081d96cf4aff85b4a9fc0634b8695dcb75a8dc33e079841692583728