[INFO] fetching crate scientisto 0.3.0...
[INFO] testing scientisto-0.3.0 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate scientisto 0.3.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate scientisto 0.3.0
[INFO] finished tweaking crates.io crate scientisto 0.3.0
[INFO] tweaked toml for crates.io crate scientisto 0.3.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate scientisto 0.3.0 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 65 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78c48d329757cafae17368074a3e28938a81401b912173deaa0877bd21fc8faa
[INFO] running `Command { std: "docker" "start" "-a" "78c48d329757cafae17368074a3e28938a81401b912173deaa0877bd21fc8faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78c48d329757cafae17368074a3e28938a81401b912173deaa0877bd21fc8faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78c48d329757cafae17368074a3e28938a81401b912173deaa0877bd21fc8faa", kill_on_drop: false }`
[INFO] [stdout] 78c48d329757cafae17368074a3e28938a81401b912173deaa0877bd21fc8faa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e30528ffb235acfe277e78286fc69436f6d1b4310d54dd19b52ddf7e5e9f1754
[INFO] running `Command { std: "docker" "start" "-a" "e30528ffb235acfe277e78286fc69436f6d1b4310d54dd19b52ddf7e5e9f1754", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.32
[INFO] [stderr]    Compiling futures-sink v0.3.32
[INFO] [stderr]    Compiling slab v0.4.12
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling futures-executor v0.3.32
[INFO] [stderr]    Compiling futures v0.3.32
[INFO] [stderr]    Compiling scientisto v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.88s
[INFO] running `Command { std: "docker" "inspect" "e30528ffb235acfe277e78286fc69436f6d1b4310d54dd19b52ddf7e5e9f1754", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e30528ffb235acfe277e78286fc69436f6d1b4310d54dd19b52ddf7e5e9f1754", kill_on_drop: false }`
[INFO] [stdout] e30528ffb235acfe277e78286fc69436f6d1b4310d54dd19b52ddf7e5e9f1754
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92185804c9bed39472bdecf97c6cd8a6dbc7d151e1b0d0d2441952ad197dfcfc
[INFO] running `Command { std: "docker" "start" "-a" "92185804c9bed39472bdecf97c6cd8a6dbc7d151e1b0d0d2441952ad197dfcfc", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling futures-io v0.3.32
[INFO] [stderr]    Compiling parking v2.2.1
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling linux-raw-sys v0.12.1
[INFO] [stderr]    Compiling async-task v4.7.1
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling async-io v2.6.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling value-bag v1.12.0
[INFO] [stderr]    Compiling event-listener v2.5.3
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling futures-lite v2.6.1
[INFO] [stderr]    Compiling piper v0.2.5
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling event-listener v5.4.1
[INFO] [stderr]    Compiling async-executor v1.14.0
[INFO] [stderr]    Compiling async-channel v1.9.0
[INFO] [stderr]    Compiling event-listener-strategy v0.5.4
[INFO] [stderr]    Compiling async-channel v2.5.0
[INFO] [stderr]    Compiling async-lock v3.4.2
[INFO] [stderr]    Compiling blocking v1.6.2
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling polling v3.11.0
[INFO] [stderr]    Compiling async-global-executor v2.4.1
[INFO] [stderr]    Compiling async-std v1.13.2
[INFO] [stderr]    Compiling futures-executor v0.3.32
[INFO] [stderr]    Compiling futures v0.3.32
[INFO] [stderr]    Compiling scientisto v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 18.25s
[INFO] running `Command { std: "docker" "inspect" "92185804c9bed39472bdecf97c6cd8a6dbc7d151e1b0d0d2441952ad197dfcfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92185804c9bed39472bdecf97c6cd8a6dbc7d151e1b0d0d2441952ad197dfcfc", kill_on_drop: false }`
[INFO] [stdout] 92185804c9bed39472bdecf97c6cd8a6dbc7d151e1b0d0d2441952ad197dfcfc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ce0db5d4d88a025a492cff5962b4a15b0748f80f8249f7c2b44eed69006dc703
[INFO] running `Command { std: "docker" "start" "-a" "ce0db5d4d88a025a492cff5962b4a15b0748f80f8249f7c2b44eed69006dc703", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/scientisto-3a74387194ca1480)
[INFO] [stdout] 
[INFO] [stdout] running 27 tests
[INFO] [stdout] test async_experiment::tests::async_experiment_should_return_name_if_control_and_experiment_are_fully_specified ... ok
[INFO] [stdout] test async_experiment::tests::async_experiment_should_return_name_if_it_is_valid ... ok
[INFO] [stdout] test async_experiment::tests::async_experiment_should_return_name_with_control_specified ... ok
[INFO] [stdout] test observation::tests::observation_should_derive_the_debug_trait ... ok
[INFO] [stdout] test async_experiment::tests::experiment_should_panic_on_empty_string_name - should panic ... ok
[INFO] [stdout] test async_experiment::tests::async_experiment_should_work_with_different_return_types_if_they_are_comparable ... ok
[INFO] [stdout] test async_experiment::tests::async_experiment_should_publish_the_results_when_publish_method_is_specified ... ok
[INFO] [stdout] test async_experiment::tests::async_experiment_should_always_return_the_control_value ... ok
[INFO] [stdout] test async_experiment::tests::async_experiment_should_return_control_value_if_the_experiment_value_is_different ... ok
[INFO] [stdout] test observation::tests::observation_should_indicate_non_matching_when_comparable_types_have_non_matching_values ... ok
[INFO] [stdout] test observation::tests::observation_should_indicate_non_matching_when_non_matching_result_values_are_measured ... ok
[INFO] [stdout] test observation::tests::observation_should_indicate_matching_when_comparable_types_have_matching_values ... ok
[INFO] [stdout] test sync_experiment::tests::experiment_should_always_return_the_control_value ... ok
[INFO] [stdout] test sync_experiment::tests::experiment_should_derive_the_debug_trait ... ok
[INFO] [stdout] test sync_experiment::tests::experiment_should_not_run_the_experiment_if_conditioned_not_to ... ok
[INFO] [stdout] test sync_experiment::tests::experiment_should_panic_on_empty_string_name - should panic ... ok
[INFO] [stdout] test sync_experiment::tests::experiment_should_publish_the_results_when_publish_method_is_specified ... ok
[INFO] [stdout] test sync_experiment::tests::experiment_should_return_control_value_if_the_experiment_panics ... ok
[INFO] [stdout] test sync_experiment::tests::experiment_should_return_name_if_it_is_valid ... ok
[INFO] [stdout] test sync_experiment::tests::experiment_should_return_name_with_control_specified ... ok
[INFO] [stdout] test sync_experiment::tests::experiment_should_work_with_different_return_types_if_they_are_comparable ... ok
[INFO] [stdout] test sync_experiment::tests::experiment_should_return_name_if_control_and_experiment_are_fully_specified ... ok
[INFO] [stdout] test sync_experiment::tests::experiment_should_return_control_value_if_the_experiment_value_is_different ... ok
[INFO] [stdout] test async_experiment::tests::experiment_should_derive_the_debug_trait ... ok
[INFO] [stdout] test sync_experiment::tests::experiment_should_panic_if_control_panics - should panic ... ok
[INFO] [stdout] test async_experiment::tests::async_experiment_should_not_run_the_experiment_if_conditioned_not_to ... ok
[INFO] [stdout] test async_experiment::tests::async_experiment_should_panic_if_control_panics - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 27 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests scientisto
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - (line 9) ... ok
[INFO] [stdout] test src/sync_experiment.rs - sync_experiment::Executable (line 29) ... ok
[INFO] [stdout] test src/async_experiment.rs - async_experiment::AsyncExperiment (line 26) ... ok
[INFO] [stdout] test src/sync_experiment.rs - sync_experiment::Executable (line 43) ... ok
[INFO] [stdout] test src/lib.rs - (line 24) ... ok
[INFO] [stdout] test src/async_experiment.rs - async_experiment::AsyncExperiment (line 42) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.07s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ce0db5d4d88a025a492cff5962b4a15b0748f80f8249f7c2b44eed69006dc703", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce0db5d4d88a025a492cff5962b4a15b0748f80f8249f7c2b44eed69006dc703", kill_on_drop: false }`
[INFO] [stdout] ce0db5d4d88a025a492cff5962b4a15b0748f80f8249f7c2b44eed69006dc703
