[INFO] crate backtrace 0.3.33 is already in cache
[INFO] extracting crate backtrace 0.3.33 into work/ex/beta-1.38-1/sources/1.37.0/reg/backtrace/0.3.33
[INFO] extracting crate backtrace 0.3.33 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/backtrace/0.3.33
[INFO] validating manifest of backtrace-0.3.33 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 backtrace-0.3.33 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 backtrace-0.3.33
[INFO] removed 2 missing examples
[INFO] removed 4 missing tests
[INFO] finished frobbing backtrace-0.3.33
[INFO] frobbed toml for backtrace-0.3.33 written to work/ex/beta-1.38-1/sources/1.37.0/reg/backtrace/0.3.33/Cargo.toml
[INFO] started frobbing backtrace-0.3.33
[INFO] removed 2 missing examples
[INFO] removed 4 missing tests
[INFO] finished frobbing backtrace-0.3.33
[INFO] frobbed toml for backtrace-0.3.33 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/backtrace/0.3.33/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 backtrace-0.3.33 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/backtrace/0.3.33:/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] c4df04cfb490e89b3e7aa9008e2ac253260d2078c1a98b72ff611d6e2c8b1733
[INFO] running `"docker" "start" "-a" "c4df04cfb490e89b3e7aa9008e2ac253260d2078c1a98b72ff611d6e2c8b1733"`
[INFO] [stderr]    Compiling cfg-if v0.1.8
[INFO] [stderr]    Compiling backtrace v0.3.33 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `"docker" "inspect" "c4df04cfb490e89b3e7aa9008e2ac253260d2078c1a98b72ff611d6e2c8b1733"`
[INFO] running `"docker" "rm" "-f" "c4df04cfb490e89b3e7aa9008e2ac253260d2078c1a98b72ff611d6e2c8b1733"`
[INFO] [stdout] c4df04cfb490e89b3e7aa9008e2ac253260d2078c1a98b72ff611d6e2c8b1733
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/backtrace/0.3.33:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] c4487decb390bf8cd586a2d6ca4432a41fa4800f3c3e621b51c2507b84d95dde
[INFO] running `"docker" "start" "-a" "c4487decb390bf8cd586a2d6ca4432a41fa4800f3c3e621b51c2507b84d95dde"`
[INFO] [stderr]    Compiling backtrace v0.3.33 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.13s
[INFO] running `"docker" "inspect" "c4487decb390bf8cd586a2d6ca4432a41fa4800f3c3e621b51c2507b84d95dde"`
[INFO] running `"docker" "rm" "-f" "c4487decb390bf8cd586a2d6ca4432a41fa4800f3c3e621b51c2507b84d95dde"`
[INFO] [stdout] c4487decb390bf8cd586a2d6ca4432a41fa4800f3c3e621b51c2507b84d95dde
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/backtrace/0.3.33:/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" "test" "--frozen"`
[INFO] [stdout] 1d22fe857eb853b0d7f1a34fb86c32c2b15e0e43f8c3764114a6452b1d029da6
[INFO] running `"docker" "start" "-a" "1d22fe857eb853b0d7f1a34fb86c32c2b15e0e43f8c3764114a6452b1d029da6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/backtrace-219ff20b1ce7d9cf
[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]      Running /opt/crater/target/debug/deps/accuracy-841b33980af17b44
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test doit ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/long_fn_name-c3bdb1bbb7d58244
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/skip_inner_frames-6f8baac6c26dba89
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test backtrace_new_should_start_with_call_site_trace ... ok
[INFO] [stdout] test backtrace_new_unresolved_should_start_with_call_site_trace ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/smoke-1a2965412f665a54
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test smoke_test_frames ... ok
[INFO] [stdout] test many_threads ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests backtrace
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/symbolize/mod.rs - symbolize::resolve_frame (line 89) ... ok
[INFO] [stdout] test src/symbolize/mod.rs - symbolize::resolve (line 45) ... ok
[INFO] [stdout] test src/backtrace/mod.rs - backtrace::trace (line 39) ... ok
[INFO] [stdout] test src/capture.rs - capture::Backtrace::new (line 115) ... ok
[INFO] [stdout] test src/lib.rs -  (line 39) ... ok
[INFO] [stdout] test src/capture.rs - capture::Backtrace::new_unresolved (line 143) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "1d22fe857eb853b0d7f1a34fb86c32c2b15e0e43f8c3764114a6452b1d029da6"`
[INFO] running `"docker" "rm" "-f" "1d22fe857eb853b0d7f1a34fb86c32c2b15e0e43f8c3764114a6452b1d029da6"`
[INFO] [stdout] 1d22fe857eb853b0d7f1a34fb86c32c2b15e0e43f8c3764114a6452b1d029da6