[INFO] crate slog-serde 1.0.0-alpha9 is already in cache
[INFO] extracting crate slog-serde 1.0.0-alpha9 into work/ex/beta-1.37-6/sources/1.36.0/reg/slog-serde/1.0.0-alpha9
[INFO] extracting crate slog-serde 1.0.0-alpha9 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/slog-serde/1.0.0-alpha9
[INFO] validating manifest of slog-serde-1.0.0-alpha9 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-serde-1.0.0-alpha9 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-serde-1.0.0-alpha9
[INFO] finished frobbing slog-serde-1.0.0-alpha9
[INFO] frobbed toml for slog-serde-1.0.0-alpha9 written to work/ex/beta-1.37-6/sources/1.36.0/reg/slog-serde/1.0.0-alpha9/Cargo.toml
[INFO] started frobbing slog-serde-1.0.0-alpha9
[INFO] finished frobbing slog-serde-1.0.0-alpha9
[INFO] frobbed toml for slog-serde-1.0.0-alpha9 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/slog-serde/1.0.0-alpha9/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] testing slog-serde-1.0.0-alpha9 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-5/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-serde/1.0.0-alpha9:/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] 93ac9c5610887411bfdec815e39a399111dcbc982424cbb9ef7ebeaaaea66d23
[INFO] running `"docker" "start" "-a" "93ac9c5610887411bfdec815e39a399111dcbc982424cbb9ef7ebeaaaea66d23"`
[INFO] [stderr]    Compiling slog v1.7.1
[INFO] [stderr]    Compiling slog-serde v1.0.0-alpha9 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> lib.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `"docker" "inspect" "93ac9c5610887411bfdec815e39a399111dcbc982424cbb9ef7ebeaaaea66d23"`
[INFO] running `"docker" "rm" "-f" "93ac9c5610887411bfdec815e39a399111dcbc982424cbb9ef7ebeaaaea66d23"`
[INFO] [stdout] 93ac9c5610887411bfdec815e39a399111dcbc982424cbb9ef7ebeaaaea66d23
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/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-serde/1.0.0-alpha9:/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] 10bade0d48c73d51bb53dbdf5e041ad103a01597f7e9df5761c118c5442d133a
[INFO] running `"docker" "start" "-a" "10bade0d48c73d51bb53dbdf5e041ad103a01597f7e9df5761c118c5442d133a"`
[INFO] [stderr]    Compiling slog-serde v1.0.0-alpha9 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> lib.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "10bade0d48c73d51bb53dbdf5e041ad103a01597f7e9df5761c118c5442d133a"`
[INFO] running `"docker" "rm" "-f" "10bade0d48c73d51bb53dbdf5e041ad103a01597f7e9df5761c118c5442d133a"`
[INFO] [stdout] 10bade0d48c73d51bb53dbdf5e041ad103a01597f7e9df5761c118c5442d133a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/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-serde/1.0.0-alpha9:/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] d2082ddf4f685159800b0d51b70f807dfb4098235d5036f1efaf646f0a3aab5d
[INFO] running `"docker" "start" "-a" "d2082ddf4f685159800b0d51b70f807dfb4098235d5036f1efaf646f0a3aab5d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/slog_serde-57959f8605bee9d2
[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-serde
[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" "d2082ddf4f685159800b0d51b70f807dfb4098235d5036f1efaf646f0a3aab5d"`
[INFO] running `"docker" "rm" "-f" "d2082ddf4f685159800b0d51b70f807dfb4098235d5036f1efaf646f0a3aab5d"`
[INFO] [stdout] d2082ddf4f685159800b0d51b70f807dfb4098235d5036f1efaf646f0a3aab5d