[INFO] crate slog-json 2.3.0 is already in cache
[INFO] extracting crate slog-json 2.3.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/slog-json/2.3.0
[INFO] extracting crate slog-json 2.3.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/slog-json/2.3.0
[INFO] validating manifest of slog-json-2.3.0 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 slog-json-2.3.0 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 slog-json-2.3.0
[INFO] finished frobbing slog-json-2.3.0
[INFO] frobbed toml for slog-json-2.3.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/slog-json/2.3.0/Cargo.toml
[INFO] started frobbing slog-json-2.3.0
[INFO] finished frobbing slog-json-2.3.0
[INFO] frobbed toml for slog-json-2.3.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/slog-json/2.3.0/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 slog-json-2.3.0 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-0/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/slog-json/2.3.0:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 4c106271e5052fd64791d83d7409104c063b3ba3988454d4746e554eb95c30d0
[INFO] running `"docker" "start" "-a" "4c106271e5052fd64791d83d7409104c063b3ba3988454d4746e554eb95c30d0"`
[INFO] [stderr]    Compiling slog-json v2.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `"docker" "inspect" "4c106271e5052fd64791d83d7409104c063b3ba3988454d4746e554eb95c30d0"`
[INFO] running `"docker" "rm" "-f" "4c106271e5052fd64791d83d7409104c063b3ba3988454d4746e554eb95c30d0"`
[INFO] [stdout] 4c106271e5052fd64791d83d7409104c063b3ba3988454d4746e554eb95c30d0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/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/slog-json/2.3.0:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] ca354f600ac5f0f1753bfc371f0ca9ba5e604dbfc67e00387463a7527e9b2e34
[INFO] running `"docker" "start" "-a" "ca354f600ac5f0f1753bfc371f0ca9ba5e604dbfc67e00387463a7527e9b2e34"`
[INFO] [stderr]    Compiling slog-json v2.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.64s
[INFO] running `"docker" "inspect" "ca354f600ac5f0f1753bfc371f0ca9ba5e604dbfc67e00387463a7527e9b2e34"`
[INFO] running `"docker" "rm" "-f" "ca354f600ac5f0f1753bfc371f0ca9ba5e604dbfc67e00387463a7527e9b2e34"`
[INFO] [stdout] ca354f600ac5f0f1753bfc371f0ca9ba5e604dbfc67e00387463a7527e9b2e34
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/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/slog-json/2.3.0:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 25ad94736942ea89f013a4728251e177c6e81b421b0bcbf9752f762b9efcb6df
[INFO] running `"docker" "start" "-a" "25ad94736942ea89f013a4728251e177c6e81b421b0bcbf9752f762b9efcb6df"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/slog_json-14b509f0c8c40332
[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 slog-json
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test lib.rs -  (line 4) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "25ad94736942ea89f013a4728251e177c6e81b421b0bcbf9752f762b9efcb6df"`
[INFO] running `"docker" "rm" "-f" "25ad94736942ea89f013a4728251e177c6e81b421b0bcbf9752f762b9efcb6df"`
[INFO] [stdout] 25ad94736942ea89f013a4728251e177c6e81b421b0bcbf9752f762b9efcb6df