[INFO] crate mango 0.2.0 is already in cache
[INFO] extracting crate mango 0.2.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/mango/0.2.0
[INFO] extracting crate mango 0.2.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/mango/0.2.0
[INFO] validating manifest of mango-0.2.0 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 mango-0.2.0 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 mango-0.2.0
[INFO] finished frobbing mango-0.2.0
[INFO] frobbed toml for mango-0.2.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/mango/0.2.0/Cargo.toml
[INFO] started frobbing mango-0.2.0
[INFO] finished frobbing mango-0.2.0
[INFO] frobbed toml for mango-0.2.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/mango/0.2.0/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] [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] testing mango-0.2.0 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-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/mango/0.2.0:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 031c5da6132af3072f022275da8fec2cc9487ea9ff90bea71e7fee265996e1d4
[INFO] running `"docker" "start" "-a" "031c5da6132af3072f022275da8fec2cc9487ea9ff90bea71e7fee265996e1d4"`
[INFO] [stderr]    Compiling mango v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `"docker" "inspect" "031c5da6132af3072f022275da8fec2cc9487ea9ff90bea71e7fee265996e1d4"`
[INFO] running `"docker" "rm" "-f" "031c5da6132af3072f022275da8fec2cc9487ea9ff90bea71e7fee265996e1d4"`
[INFO] [stdout] 031c5da6132af3072f022275da8fec2cc9487ea9ff90bea71e7fee265996e1d4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/mango/0.2.0:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6c26e7d9f04b4fb5513fa80300a2a8b82282eb900f2088b0f5f820fa7578d335
[INFO] running `"docker" "start" "-a" "6c26e7d9f04b4fb5513fa80300a2a8b82282eb900f2088b0f5f820fa7578d335"`
[INFO] [stderr]    Compiling mango v0.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `"docker" "inspect" "6c26e7d9f04b4fb5513fa80300a2a8b82282eb900f2088b0f5f820fa7578d335"`
[INFO] running `"docker" "rm" "-f" "6c26e7d9f04b4fb5513fa80300a2a8b82282eb900f2088b0f5f820fa7578d335"`
[INFO] [stdout] 6c26e7d9f04b4fb5513fa80300a2a8b82282eb900f2088b0f5f820fa7578d335
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/mango/0.2.0:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 1ec7519dffc89062d55a791541558334ecc7c0841557f272e5b84d20b6571c2a
[INFO] running `"docker" "start" "-a" "1ec7519dffc89062d55a791541558334ecc7c0841557f272e5b84d20b6571c2a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mango-bec2daab3396145a
[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" "1ec7519dffc89062d55a791541558334ecc7c0841557f272e5b84d20b6571c2a"`
[INFO] running `"docker" "rm" "-f" "1ec7519dffc89062d55a791541558334ecc7c0841557f272e5b84d20b6571c2a"`
[INFO] [stdout] 1ec7519dffc89062d55a791541558334ecc7c0841557f272e5b84d20b6571c2a