[INFO] crate tracing-subscriber 0.0.0 is already in cache
[INFO] extracting crate tracing-subscriber 0.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/tracing-subscriber/0.0.0
[INFO] extracting crate tracing-subscriber 0.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tracing-subscriber/0.0.0
[INFO] validating manifest of tracing-subscriber-0.0.0 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 tracing-subscriber-0.0.0 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 tracing-subscriber-0.0.0
[INFO] finished frobbing tracing-subscriber-0.0.0
[INFO] frobbed toml for tracing-subscriber-0.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/tracing-subscriber/0.0.0/Cargo.toml
[INFO] started frobbing tracing-subscriber-0.0.0
[INFO] finished frobbing tracing-subscriber-0.0.0
[INFO] frobbed toml for tracing-subscriber-0.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tracing-subscriber/0.0.0/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing tracing-subscriber-0.0.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tracing-subscriber/0.0.0:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] c5eef066f15670ba930c1395902745bf93db910260af7d5b8122e1a0235681f6
[INFO] running `"docker" "start" "-a" "c5eef066f15670ba930c1395902745bf93db910260af7d5b8122e1a0235681f6"`
[INFO] [stderr]    Compiling tracing-subscriber v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `"docker" "inspect" "c5eef066f15670ba930c1395902745bf93db910260af7d5b8122e1a0235681f6"`
[INFO] running `"docker" "rm" "-f" "c5eef066f15670ba930c1395902745bf93db910260af7d5b8122e1a0235681f6"`
[INFO] [stdout] c5eef066f15670ba930c1395902745bf93db910260af7d5b8122e1a0235681f6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tracing-subscriber/0.0.0:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] e33040845384a166da0e778bb56848e059c613b73df8fa9744234f32a344967f
[INFO] running `"docker" "start" "-a" "e33040845384a166da0e778bb56848e059c613b73df8fa9744234f32a344967f"`
[INFO] [stderr]    Compiling tracing-subscriber v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `"docker" "inspect" "e33040845384a166da0e778bb56848e059c613b73df8fa9744234f32a344967f"`
[INFO] running `"docker" "rm" "-f" "e33040845384a166da0e778bb56848e059c613b73df8fa9744234f32a344967f"`
[INFO] [stdout] e33040845384a166da0e778bb56848e059c613b73df8fa9744234f32a344967f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tracing-subscriber/0.0.0:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] db049efd7e5a79241d52b78a0ec6940f3f4c4c35b726d34cca1bf08fbef4e354
[INFO] running `"docker" "start" "-a" "db049efd7e5a79241d52b78a0ec6940f3f4c4c35b726d34cca1bf08fbef4e354"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tracing_subscriber-74c1047810a54465
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... 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 tracing-subscriber
[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" "db049efd7e5a79241d52b78a0ec6940f3f4c4c35b726d34cca1bf08fbef4e354"`
[INFO] running `"docker" "rm" "-f" "db049efd7e5a79241d52b78a0ec6940f3f4c4c35b726d34cca1bf08fbef4e354"`
[INFO] [stdout] db049efd7e5a79241d52b78a0ec6940f3f4c4c35b726d34cca1bf08fbef4e354