[INFO] crate walker 1.0.1 is already in cache
[INFO] extracting crate walker 1.0.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/walker/1.0.1
[INFO] extracting crate walker 1.0.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/walker/1.0.1
[INFO] validating manifest of walker-1.0.1 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 walker-1.0.1 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 walker-1.0.1
[INFO] finished frobbing walker-1.0.1
[INFO] frobbed toml for walker-1.0.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/walker/1.0.1/Cargo.toml
[INFO] started frobbing walker-1.0.1
[INFO] finished frobbing walker-1.0.1
[INFO] frobbed toml for walker-1.0.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/walker/1.0.1/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] 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing walker-1.0.1 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/walker/1.0.1:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 8facbd6427d83a08473b55a1a3c0531efef09fe182acf1c6a1ccfe695c0b415f
[INFO] running `"docker" "start" "-a" "8facbd6427d83a08473b55a1a3c0531efef09fe182acf1c6a1ccfe695c0b415f"`
[INFO] [stderr]    Compiling walker v1.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `"docker" "inspect" "8facbd6427d83a08473b55a1a3c0531efef09fe182acf1c6a1ccfe695c0b415f"`
[INFO] running `"docker" "rm" "-f" "8facbd6427d83a08473b55a1a3c0531efef09fe182acf1c6a1ccfe695c0b415f"`
[INFO] [stdout] 8facbd6427d83a08473b55a1a3c0531efef09fe182acf1c6a1ccfe695c0b415f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/walker/1.0.1:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 50a93e72366ec9ddd9c6926a14b3d84aa31091cbba52c5ce07a752d9e2257f18
[INFO] running `"docker" "start" "-a" "50a93e72366ec9ddd9c6926a14b3d84aa31091cbba52c5ce07a752d9e2257f18"`
[INFO] [stderr]    Compiling walker v1.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "50a93e72366ec9ddd9c6926a14b3d84aa31091cbba52c5ce07a752d9e2257f18"`
[INFO] running `"docker" "rm" "-f" "50a93e72366ec9ddd9c6926a14b3d84aa31091cbba52c5ce07a752d9e2257f18"`
[INFO] [stdout] 50a93e72366ec9ddd9c6926a14b3d84aa31091cbba52c5ce07a752d9e2257f18
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/walker/1.0.1:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 6eed3b7493241c9559be2201b68f93c4a13e05090dca09bdecdbdaddc33a39d2
[INFO] running `"docker" "start" "-a" "6eed3b7493241c9559be2201b68f93c4a13e05090dca09bdecdbdaddc33a39d2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/walker-c3abe15b8c0172e2
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::test_walker ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests walker
[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" "6eed3b7493241c9559be2201b68f93c4a13e05090dca09bdecdbdaddc33a39d2"`
[INFO] running `"docker" "rm" "-f" "6eed3b7493241c9559be2201b68f93c4a13e05090dca09bdecdbdaddc33a39d2"`
[INFO] [stdout] 6eed3b7493241c9559be2201b68f93c4a13e05090dca09bdecdbdaddc33a39d2