[INFO] crate tailrec 0.0.4 is already in cache
[INFO] extracting crate tailrec 0.0.4 into work/ex/beta-1.37-6/sources/1.36.0/reg/tailrec/0.0.4
[INFO] extracting crate tailrec 0.0.4 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/tailrec/0.0.4
[INFO] validating manifest of tailrec-0.0.4 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 tailrec-0.0.4 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 tailrec-0.0.4
[INFO] finished frobbing tailrec-0.0.4
[INFO] frobbed toml for tailrec-0.0.4 written to work/ex/beta-1.37-6/sources/1.36.0/reg/tailrec/0.0.4/Cargo.toml
[INFO] started frobbing tailrec-0.0.4
[INFO] finished frobbing tailrec-0.0.4
[INFO] frobbed toml for tailrec-0.0.4 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/tailrec/0.0.4/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] [stderr]     Blocking waiting for file lock on package cache lock
[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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing tailrec-0.0.4 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-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/tailrec/0.0.4:/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] 2fe667044834b25c9bf443e2d9e21a15dd90e96a9d3d0ec46e9e37fba66720dd
[INFO] running `"docker" "start" "-a" "2fe667044834b25c9bf443e2d9e21a15dd90e96a9d3d0ec46e9e37fba66720dd"`
[INFO] [stderr]    Compiling tailrec v0.0.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `"docker" "inspect" "2fe667044834b25c9bf443e2d9e21a15dd90e96a9d3d0ec46e9e37fba66720dd"`
[INFO] running `"docker" "rm" "-f" "2fe667044834b25c9bf443e2d9e21a15dd90e96a9d3d0ec46e9e37fba66720dd"`
[INFO] [stdout] 2fe667044834b25c9bf443e2d9e21a15dd90e96a9d3d0ec46e9e37fba66720dd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/tailrec/0.0.4:/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] 557678472f1a7c9f6399445c20675dc24007bc57e20eab6c7566ad53af42a039
[INFO] running `"docker" "start" "-a" "557678472f1a7c9f6399445c20675dc24007bc57e20eab6c7566ad53af42a039"`
[INFO] [stderr]    Compiling tailrec v0.0.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `"docker" "inspect" "557678472f1a7c9f6399445c20675dc24007bc57e20eab6c7566ad53af42a039"`
[INFO] running `"docker" "rm" "-f" "557678472f1a7c9f6399445c20675dc24007bc57e20eab6c7566ad53af42a039"`
[INFO] [stdout] 557678472f1a7c9f6399445c20675dc24007bc57e20eab6c7566ad53af42a039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/tailrec/0.0.4:/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] e7a8f423052e25dc54f616e8b595cc37e1b14db966c526792ab4ff377c021214
[INFO] running `"docker" "start" "-a" "e7a8f423052e25dc54f616e8b595cc37e1b14db966c526792ab4ff377c021214"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tailrec-61540947981795b4
[INFO] [stderr]      Running /opt/crater/target/debug/deps/test-8e585160cc27ae42
[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 1 test
[INFO] [stderr]    Doc-tests tailrec
[INFO] [stdout] test test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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" "e7a8f423052e25dc54f616e8b595cc37e1b14db966c526792ab4ff377c021214"`
[INFO] running `"docker" "rm" "-f" "e7a8f423052e25dc54f616e8b595cc37e1b14db966c526792ab4ff377c021214"`
[INFO] [stdout] e7a8f423052e25dc54f616e8b595cc37e1b14db966c526792ab4ff377c021214