[INFO] crate speculate 0.1.2 is already in cache
[INFO] extracting crate speculate 0.1.2 into work/ex/beta-1.38-1/sources/1.37.0/reg/speculate/0.1.2
[INFO] extracting crate speculate 0.1.2 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/speculate/0.1.2
[INFO] validating manifest of speculate-0.1.2 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 speculate-0.1.2 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 speculate-0.1.2
[INFO] finished frobbing speculate-0.1.2
[INFO] frobbed toml for speculate-0.1.2 written to work/ex/beta-1.38-1/sources/1.37.0/reg/speculate/0.1.2/Cargo.toml
[INFO] started frobbing speculate-0.1.2
[INFO] finished frobbing speculate-0.1.2
[INFO] frobbed toml for speculate-0.1.2 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/speculate/0.1.2/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] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing speculate-0.1.2 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-7/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/speculate/0.1.2:/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] 70d087b3fb75dab498cf73fc614ec244475747953ae3b710c284d74142bb9af4
[INFO] running `"docker" "start" "-a" "70d087b3fb75dab498cf73fc614ec244475747953ae3b710c284d74142bb9af4"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling speculate v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.69s
[INFO] running `"docker" "inspect" "70d087b3fb75dab498cf73fc614ec244475747953ae3b710c284d74142bb9af4"`
[INFO] running `"docker" "rm" "-f" "70d087b3fb75dab498cf73fc614ec244475747953ae3b710c284d74142bb9af4"`
[INFO] [stdout] 70d087b3fb75dab498cf73fc614ec244475747953ae3b710c284d74142bb9af4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/speculate/0.1.2:/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] e8b2a7d318c5d4f942ba57de66e8abb76c9ea5c70076ae52af1118753caada46
[INFO] running `"docker" "start" "-a" "e8b2a7d318c5d4f942ba57de66e8abb76c9ea5c70076ae52af1118753caada46"`
[INFO] [stderr]    Compiling speculate v0.1.2 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `"docker" "inspect" "e8b2a7d318c5d4f942ba57de66e8abb76c9ea5c70076ae52af1118753caada46"`
[INFO] running `"docker" "rm" "-f" "e8b2a7d318c5d4f942ba57de66e8abb76c9ea5c70076ae52af1118753caada46"`
[INFO] [stdout] e8b2a7d318c5d4f942ba57de66e8abb76c9ea5c70076ae52af1118753caada46
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/speculate/0.1.2:/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] 520230b58543d731c987709aed60e21787b9a17ce46d9fb2dbd8b1a2c4029a35
[INFO] running `"docker" "start" "-a" "520230b58543d731c987709aed60e21787b9a17ce46d9fb2dbd8b1a2c4029a35"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/speculate-4335834adb4e8c78
[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/basic-ea782475b5124301
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test attributes::speculate_7::test_ignore ... ignored
[INFO] [stdout] test speculate_0::something::nested::test_works_at_level_3 ... ok
[INFO] [stdout] test ec5::speculate_6::test_foo ... ok
[INFO] [stdout] test ec3::speculate_4::test_foo ... ok
[INFO] [stdout] test ec2::speculate_3::test_works_again ... ok
[INFO] [stdout] test ec2::speculate_2::test_works ... ok
[INFO] [stdout] test speculate_0::something::test_works_at_level_2_after_context ... ok
[INFO] [stdout] test speculate_0::test_works_at_level_1 ... ok
[INFO] [stdout] test speculate_0::something::test_works_at_level_2 ... ok
[INFO] [stdout] test speculate_0::test_works_at_level_1_after_describe ... ok
[INFO] [stdout] test attributes::speculate_7::test_should_panic ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/example-8c8d84447fc2e9d4
[INFO] [stdout] test attributes::speculate_7::test_should_panic_with_foo ... ok
[INFO] [stderr]    Doc-tests speculate
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test speculate_0::math::test_can_subtract_stuff ... ok
[INFO] [stdout] test speculate_0::math::test_can_add_stuff ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - speculate (line 96) ... FAILED
[INFO] [stdout] test src/lib.rs - speculate (line 111) ... ok
[INFO] [stdout] test src/lib.rs - speculate (line 70) ... ok
[INFO] [stdout] test src/lib.rs - speculate (line 57) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - speculate (line 96) stdout ----
[INFO] [stdout] error[E0658]: use of unstable library feature 'test': `bench` is a part of custom test frameworks which are unstable
[INFO] [stdout]  --> src/lib.rs:100:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | bench "xor 1 to 1000" |b| {
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: for more information, see https://github.com/rust-lang/rust/issues/50297
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - speculate (line 96)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "520230b58543d731c987709aed60e21787b9a17ce46d9fb2dbd8b1a2c4029a35"`
[INFO] running `"docker" "rm" "-f" "520230b58543d731c987709aed60e21787b9a17ce46d9fb2dbd8b1a2c4029a35"`
[INFO] [stdout] 520230b58543d731c987709aed60e21787b9a17ce46d9fb2dbd8b1a2c4029a35