[INFO] crate lexical 2.2.1 is already in cache
[INFO] extracting crate lexical 2.2.1 into work/ex/beta-1.38-1/sources/1.37.0/reg/lexical/2.2.1
[INFO] extracting crate lexical 2.2.1 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/lexical/2.2.1
[INFO] validating manifest of lexical-2.2.1 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 lexical-2.2.1 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 lexical-2.2.1
[INFO] finished frobbing lexical-2.2.1
[INFO] frobbed toml for lexical-2.2.1 written to work/ex/beta-1.38-1/sources/1.37.0/reg/lexical/2.2.1/Cargo.toml
[INFO] started frobbing lexical-2.2.1
[INFO] finished frobbing lexical-2.2.1
[INFO] frobbed toml for lexical-2.2.1 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/lexical/2.2.1/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 lexical-2.2.1 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/lexical/2.2.1:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] c34af0b2cf67f355f3d7070ec6986e2bbdd3af13e01b549208522a8182a9d99e
[INFO] running `"docker" "start" "-a" "c34af0b2cf67f355f3d7070ec6986e2bbdd3af13e01b549208522a8182a9d99e"`
[INFO] [stderr] error: failed to parse manifest at `/opt/crater/workdir/Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   can't find `atof` bench, specify bench.path
[INFO] running `"docker" "inspect" "c34af0b2cf67f355f3d7070ec6986e2bbdd3af13e01b549208522a8182a9d99e"`
[INFO] running `"docker" "rm" "-f" "c34af0b2cf67f355f3d7070ec6986e2bbdd3af13e01b549208522a8182a9d99e"`
[INFO] [stdout] c34af0b2cf67f355f3d7070ec6986e2bbdd3af13e01b549208522a8182a9d99e