[INFO] crate trie-root 0.14.0 is already in cache
[INFO] extracting crate trie-root 0.14.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/trie-root/0.14.0
[INFO] extracting crate trie-root 0.14.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/trie-root/0.14.0
[INFO] validating manifest of trie-root-0.14.0 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 trie-root-0.14.0 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 trie-root-0.14.0
[INFO] finished frobbing trie-root-0.14.0
[INFO] frobbed toml for trie-root-0.14.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/trie-root/0.14.0/Cargo.toml
[INFO] started frobbing trie-root-0.14.0
[INFO] finished frobbing trie-root-0.14.0
[INFO] frobbed toml for trie-root-0.14.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/trie-root/0.14.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 trie-root-0.14.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/trie-root/0.14.0:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 7035a34594430e026866bea94c9d31cfb22911351b49d2538ea852c8c57b3818
[INFO] running `"docker" "start" "-a" "7035a34594430e026866bea94c9d31cfb22911351b49d2538ea852c8c57b3818"`
[INFO] [stderr]    Compiling trie-root v0.14.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `"docker" "inspect" "7035a34594430e026866bea94c9d31cfb22911351b49d2538ea852c8c57b3818"`
[INFO] running `"docker" "rm" "-f" "7035a34594430e026866bea94c9d31cfb22911351b49d2538ea852c8c57b3818"`
[INFO] [stdout] 7035a34594430e026866bea94c9d31cfb22911351b49d2538ea852c8c57b3818
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/trie-root/0.14.0:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 361a9e7f9195c2346c9194d4809948a13ce01b625449d89bb3a694401ddf0f84
[INFO] running `"docker" "start" "-a" "361a9e7f9195c2346c9194d4809948a13ce01b625449d89bb3a694401ddf0f84"`
[INFO] [stderr]    Compiling hex-literal-impl v0.1.2
[INFO] [stderr]    Compiling trie-standardmap v0.14.0
[INFO] [stderr]    Compiling hex-literal v0.1.4
[INFO] [stderr]    Compiling trie-root v0.14.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.34s
[INFO] running `"docker" "inspect" "361a9e7f9195c2346c9194d4809948a13ce01b625449d89bb3a694401ddf0f84"`
[INFO] running `"docker" "rm" "-f" "361a9e7f9195c2346c9194d4809948a13ce01b625449d89bb3a694401ddf0f84"`
[INFO] [stdout] 361a9e7f9195c2346c9194d4809948a13ce01b625449d89bb3a694401ddf0f84
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/trie-root/0.14.0:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 925818461e9f84e4c7a3b2b15279b5e1253d0c4f56fd353a02ff06cd800f05e2
[INFO] running `"docker" "start" "-a" "925818461e9f84e4c7a3b2b15279b5e1253d0c4f56fd353a02ff06cd800f05e2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/trie_root-654ca4aa2e1506ad
[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 trie-root
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - trie_root (line 75) ... FAILED
[INFO] [stdout] test src/lib.rs - sec_trie_root (line 165) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - trie_root (line 75) stdout ----
[INFO] [stdout] error[E0463]: can't find crate for `reference_trie`
[INFO] [stdout]  --> src/lib.rs:78:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate reference_trie;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - sec_trie_root (line 165) stdout ----
[INFO] [stdout] error[E0463]: can't find crate for `reference_trie`
[INFO] [stdout]  --> src/lib.rs:169:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | extern crate reference_trie;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - sec_trie_root (line 165)
[INFO] [stdout]     src/lib.rs - trie_root (line 75)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "925818461e9f84e4c7a3b2b15279b5e1253d0c4f56fd353a02ff06cd800f05e2"`
[INFO] running `"docker" "rm" "-f" "925818461e9f84e4c7a3b2b15279b5e1253d0c4f56fd353a02ff06cd800f05e2"`
[INFO] [stdout] 925818461e9f84e4c7a3b2b15279b5e1253d0c4f56fd353a02ff06cd800f05e2