[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/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/HermannDppes/doctails"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/HermannDppes/doctails'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/HermannDppes/doctails" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/HermannDppes/doctails"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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 master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of HermannDppes/doctails on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "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/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/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/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/HermannDppes/doctails/Cargo.toml
[INFO] crate HermannDppes/doctails has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing HermannDppes/doctails against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] 86a715e277ad86863aae0d21178e780fb0c035a7b698840eb68f514166587165
[INFO] running `"docker" "start" "-a" "86a715e277ad86863aae0d21178e780fb0c035a7b698840eb68f514166587165"`
[INFO] [stderr]    Compiling half v1.1.2
[INFO] [stderr]    Compiling uuid v0.6.5
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling serde_cbor v0.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.76
[INFO] [stderr]    Compiling doctails v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.79s
[INFO] running `"docker" "inspect" "86a715e277ad86863aae0d21178e780fb0c035a7b698840eb68f514166587165"`
[INFO] running `"docker" "rm" "-f" "86a715e277ad86863aae0d21178e780fb0c035a7b698840eb68f514166587165"`
[INFO] [stdout] 86a715e277ad86863aae0d21178e780fb0c035a7b698840eb68f514166587165
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] d48eaa195e4467a2dc16531d5e7c8938ef17a809582aa80fe79643c701bdca2e
[INFO] running `"docker" "start" "-a" "d48eaa195e4467a2dc16531d5e7c8938ef17a809582aa80fe79643c701bdca2e"`
[INFO] [stderr]    Compiling doctails v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.11s
[INFO] running `"docker" "inspect" "d48eaa195e4467a2dc16531d5e7c8938ef17a809582aa80fe79643c701bdca2e"`
[INFO] running `"docker" "rm" "-f" "d48eaa195e4467a2dc16531d5e7c8938ef17a809582aa80fe79643c701bdca2e"`
[INFO] [stdout] d48eaa195e4467a2dc16531d5e7c8938ef17a809582aa80fe79643c701bdca2e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-0/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] 74f4fedd34c2b42c4467d57c21a4450c2b21411a01f55b7740ee7df8d13013fa
[INFO] running `"docker" "start" "-a" "74f4fedd34c2b42c4467d57c21a4450c2b21411a01f55b7740ee7df8d13013fa"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/doctails-53e3fa874c289c98
[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-5a0c261541d81160
[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]    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] running `"docker" "inspect" "74f4fedd34c2b42c4467d57c21a4450c2b21411a01f55b7740ee7df8d13013fa"`
[INFO] running `"docker" "rm" "-f" "74f4fedd34c2b42c4467d57c21a4450c2b21411a01f55b7740ee7df8d13013fa"`
[INFO] [stdout] 74f4fedd34c2b42c4467d57c21a4450c2b21411a01f55b7740ee7df8d13013fa