[INFO] updating cached repository HermannDppes/doctails
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/HermannDppes/doctails
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/HermannDppes/doctails" "work/ex/beta-1.38-1/sources/1.37.0/gh/HermannDppes/doctails"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/HermannDppes/doctails'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/HermannDppes/doctails" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/HermannDppes/doctails"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/HermannDppes/doctails'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4c382121bcec8d7b0a37449d13b383eb1743032d
[INFO] sha for GitHub repo HermannDppes/doctails: 4c382121bcec8d7b0a37449d13b383eb1743032d
[INFO] validating manifest of HermannDppes/doctails 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 HermannDppes/doctails 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 HermannDppes/doctails
[INFO] finished frobbing HermannDppes/doctails
[INFO] frobbed toml for HermannDppes/doctails written to work/ex/beta-1.38-1/sources/1.37.0/gh/HermannDppes/doctails/Cargo.toml
[INFO] started frobbing HermannDppes/doctails
[INFO] finished frobbing HermannDppes/doctails
[INFO] frobbed toml for HermannDppes/doctails written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/HermannDppes/doctails/Cargo.toml
[INFO] crate HermannDppes/doctails 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 HermannDppes/doctails 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-3/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/HermannDppes/doctails:/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] abdbaf4cb27b75007a7948698f01f2485868135ce760580c44def0b399a1c12c
[INFO] running `"docker" "start" "-a" "abdbaf4cb27b75007a7948698f01f2485868135ce760580c44def0b399a1c12c"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.16
[INFO] [stderr]    Compiling half v1.1.2
[INFO] [stderr]    Compiling uuid v0.6.5
[INFO] [stderr]    Compiling serde_cbor v0.9.0
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling serde_derive v1.0.76
[INFO] [stderr]    Compiling doctails v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ui.rs:16:48
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn put_pack(pack: &Pack) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                ^^^^^ help: use `dyn`: `dyn 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/ui.rs:22:39
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn get_pack() -> Result<Pack, Box<Error>> {
[INFO] [stderr]    |                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.20s
[INFO] running `"docker" "inspect" "abdbaf4cb27b75007a7948698f01f2485868135ce760580c44def0b399a1c12c"`
[INFO] running `"docker" "rm" "-f" "abdbaf4cb27b75007a7948698f01f2485868135ce760580c44def0b399a1c12c"`
[INFO] [stdout] abdbaf4cb27b75007a7948698f01f2485868135ce760580c44def0b399a1c12c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/HermannDppes/doctails:/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] 59b57a651f735559c90f21300ca1d42fca532391c987934cf00d8c6d3ab4db66
[INFO] running `"docker" "start" "-a" "59b57a651f735559c90f21300ca1d42fca532391c987934cf00d8c6d3ab4db66"`
[INFO] [stderr]    Compiling doctails v0.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ui.rs:16:48
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn put_pack(pack: &Pack) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                ^^^^^ help: use `dyn`: `dyn 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/ui.rs:22:39
[INFO] [stderr]    |
[INFO] [stderr] 22 | pub fn get_pack() -> Result<Pack, Box<Error>> {
[INFO] [stderr]    |                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.07s
[INFO] running `"docker" "inspect" "59b57a651f735559c90f21300ca1d42fca532391c987934cf00d8c6d3ab4db66"`
[INFO] running `"docker" "rm" "-f" "59b57a651f735559c90f21300ca1d42fca532391c987934cf00d8c6d3ab4db66"`
[INFO] [stdout] 59b57a651f735559c90f21300ca1d42fca532391c987934cf00d8c6d3ab4db66
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/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/HermannDppes/doctails:/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] c8342cbfdee65961697d6e3e5df3646219cd445cea5969aa842f75250646427d
[INFO] running `"docker" "start" "-a" "c8342cbfdee65961697d6e3e5df3646219cd445cea5969aa842f75250646427d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/doctails-df1f1b84a9de61c5
[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] [stderr]      Running /opt/crater/target/debug/deps/doctails-82aa9adae4d6957f
[INFO] [stderr]    Doc-tests doctails
[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] [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" "c8342cbfdee65961697d6e3e5df3646219cd445cea5969aa842f75250646427d"`
[INFO] running `"docker" "rm" "-f" "c8342cbfdee65961697d6e3e5df3646219cd445cea5969aa842f75250646427d"`
[INFO] [stdout] c8342cbfdee65961697d6e3e5df3646219cd445cea5969aa842f75250646427d