[INFO] crate semver-trick 0.2.1 is already in cache
[INFO] extracting crate semver-trick 0.2.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/semver-trick/0.2.1
[INFO] extracting crate semver-trick 0.2.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/semver-trick/0.2.1
[INFO] validating manifest of semver-trick-0.2.1 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 semver-trick-0.2.1 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 semver-trick-0.2.1
[INFO] finished frobbing semver-trick-0.2.1
[INFO] frobbed toml for semver-trick-0.2.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/semver-trick/0.2.1/Cargo.toml
[INFO] started frobbing semver-trick-0.2.1
[INFO] finished frobbing semver-trick-0.2.1
[INFO] frobbed toml for semver-trick-0.2.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/semver-trick/0.2.1/Cargo.toml
[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] [stderr]     Blocking waiting for file lock on package cache
[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 semver-trick-0.2.1 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/reg/semver-trick/0.2.1:/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] 1e94e955ae73c69bc22149ad2ad20b9af50b4e7c555c98e930abfeb4db17e729
[INFO] running `"docker" "start" "-a" "1e94e955ae73c69bc22149ad2ad20b9af50b4e7c555c98e930abfeb4db17e729"`
[INFO] [stderr]    Compiling semver-trick v0.3.0
[INFO] [stderr]    Compiling semver-trick v0.2.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `"docker" "inspect" "1e94e955ae73c69bc22149ad2ad20b9af50b4e7c555c98e930abfeb4db17e729"`
[INFO] running `"docker" "rm" "-f" "1e94e955ae73c69bc22149ad2ad20b9af50b4e7c555c98e930abfeb4db17e729"`
[INFO] [stdout] 1e94e955ae73c69bc22149ad2ad20b9af50b4e7c555c98e930abfeb4db17e729
[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/reg/semver-trick/0.2.1:/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] a54d7b206fcf047de42ab2ad73084b48282131defd9960a3b13fd45d54bb80b7
[INFO] running `"docker" "start" "-a" "a54d7b206fcf047de42ab2ad73084b48282131defd9960a3b13fd45d54bb80b7"`
[INFO] [stderr]    Compiling semver-trick v0.2.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "a54d7b206fcf047de42ab2ad73084b48282131defd9960a3b13fd45d54bb80b7"`
[INFO] running `"docker" "rm" "-f" "a54d7b206fcf047de42ab2ad73084b48282131defd9960a3b13fd45d54bb80b7"`
[INFO] [stdout] a54d7b206fcf047de42ab2ad73084b48282131defd9960a3b13fd45d54bb80b7
[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/reg/semver-trick/0.2.1:/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] f0168c9ee7824227a675254b30f0ad6122bf5aa9b85bb9c17e2529de25544c97
[INFO] running `"docker" "start" "-a" "f0168c9ee7824227a675254b30f0ad6122bf5aa9b85bb9c17e2529de25544c97"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/semver_trick-dde13339432751de
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests semver-trick
[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] error[E0465]: multiple rlib candidates for `semver_trick` found
[INFO] [stderr]  --> /opt/crater/workdir/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | extern crate semver_trick;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: candidate #1: /opt/crater/target/debug/deps/libsemver_trick-17f2fac77de08516.rlib
[INFO] [stderr]  --> /opt/crater/workdir/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | extern crate semver_trick;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] note: candidate #2: /opt/crater/target/debug/deps/libsemver_trick-99be6309331414bb.rlib
[INFO] [stderr]  --> /opt/crater/workdir/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | extern crate semver_trick;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0463]: can't find crate for `semver_trick`
[INFO] [stderr]  --> /opt/crater/workdir/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | extern crate semver_trick;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "f0168c9ee7824227a675254b30f0ad6122bf5aa9b85bb9c17e2529de25544c97"`
[INFO] running `"docker" "rm" "-f" "f0168c9ee7824227a675254b30f0ad6122bf5aa9b85bb9c17e2529de25544c97"`
[INFO] [stdout] f0168c9ee7824227a675254b30f0ad6122bf5aa9b85bb9c17e2529de25544c97