[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-1.37-6/sources/1.36.0/gh/HermannDppes/doctails"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/HermannDppes/doctails'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/HermannDppes/doctails" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/HermannDppes/doctails"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/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 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of HermannDppes/doctails 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 HermannDppes/doctails
[INFO] finished frobbing HermannDppes/doctails
[INFO] frobbed toml for HermannDppes/doctails written to work/ex/beta-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/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" "+1.36.0" "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] testing HermannDppes/doctails against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] e49065782e7c7c2a757a92a477cc7d70cd3439d58f9fb8fea11e0ed7728c5657
[INFO] running `"docker" "start" "-a" "e49065782e7c7c2a757a92a477cc7d70cd3439d58f9fb8fea11e0ed7728c5657"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.16
[INFO] [stderr]    Compiling serde v1.0.75
[INFO] [stderr]    Compiling half v1.1.2
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.32.0
[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 uuid v0.6.5
[INFO] [stderr]    Compiling serde_cbor v0.9.0
[INFO] [stderr]    Compiling doctails v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.72s
[INFO] running `"docker" "inspect" "e49065782e7c7c2a757a92a477cc7d70cd3439d58f9fb8fea11e0ed7728c5657"`
[INFO] running `"docker" "rm" "-f" "e49065782e7c7c2a757a92a477cc7d70cd3439d58f9fb8fea11e0ed7728c5657"`
[INFO] [stdout] e49065782e7c7c2a757a92a477cc7d70cd3439d58f9fb8fea11e0ed7728c5657
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] e586260ce2e2975e46f3d1750995fae0bb48f97671d1ef127631c3207c990784
[INFO] running `"docker" "start" "-a" "e586260ce2e2975e46f3d1750995fae0bb48f97671d1ef127631c3207c990784"`
[INFO] [stderr]    Compiling doctails v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.50s
[INFO] running `"docker" "inspect" "e586260ce2e2975e46f3d1750995fae0bb48f97671d1ef127631c3207c990784"`
[INFO] running `"docker" "rm" "-f" "e586260ce2e2975e46f3d1750995fae0bb48f97671d1ef127631c3207c990784"`
[INFO] [stdout] e586260ce2e2975e46f3d1750995fae0bb48f97671d1ef127631c3207c990784
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] c49778fc3a3320bdf90c321819e28d9dbff914a7e9c5aaad7d5647ea2a81068a
[INFO] running `"docker" "start" "-a" "c49778fc3a3320bdf90c321819e28d9dbff914a7e9c5aaad7d5647ea2a81068a"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/doctails-4d5e7a544f3a0463
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/doctails-1664c7f420e8c3f6
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "c49778fc3a3320bdf90c321819e28d9dbff914a7e9c5aaad7d5647ea2a81068a"`
[INFO] running `"docker" "rm" "-f" "c49778fc3a3320bdf90c321819e28d9dbff914a7e9c5aaad7d5647ea2a81068a"`
[INFO] [stdout] c49778fc3a3320bdf90c321819e28d9dbff914a7e9c5aaad7d5647ea2a81068a