[INFO] fetching crate contrafact 0.1.0-dev.1...
[INFO] checking contrafact-0.1.0-dev.1 against 1.55.0 for beta-1.56-3
[INFO] extracting crate contrafact 0.1.0-dev.1 into /workspace/builds/worker-52/source
[INFO] validating manifest of crates.io crate contrafact 0.1.0-dev.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate contrafact 0.1.0-dev.1
[INFO] finished tweaking crates.io crate contrafact 0.1.0-dev.1
[INFO] tweaked toml for crates.io crate contrafact 0.1.0-dev.1 written to /workspace/builds/worker-52/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 35fc117cdde6edfc72da36a1bee8eda1d76ff7285025251e80aeb40c41e41735
[INFO] running `Command { std: "docker" "start" "-a" "35fc117cdde6edfc72da36a1bee8eda1d76ff7285025251e80aeb40c41e41735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35fc117cdde6edfc72da36a1bee8eda1d76ff7285025251e80aeb40c41e41735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35fc117cdde6edfc72da36a1bee8eda1d76ff7285025251e80aeb40c41e41735", kill_on_drop: false }`
[INFO] [stdout] 35fc117cdde6edfc72da36a1bee8eda1d76ff7285025251e80aeb40c41e41735
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 743b17a214f11049d9cc4a7259189a6f1a36a445338bf7fb6dac95ecbcc05b2e
[INFO] running `Command { std: "docker" "start" "-a" "743b17a214f11049d9cc4a7259189a6f1a36a445338bf7fb6dac95ecbcc05b2e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking str_stack v0.1.0
[INFO] [stderr]    Compiling num-bigint v0.4.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]     Checking tracing-core v0.1.21
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking rgb v0.8.27
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking rmp v0.8.10
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking quick-xml v0.22.0
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking indexmap v1.7.0
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking tracing-log v0.1.2
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking num-format v0.4.0
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]    Compiling holochain_serialized_bytes_derive v0.0.51
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling derive_arbitrary v1.0.2
[INFO] [stderr]     Checking arbitrary v1.0.2
[INFO] [stderr]     Checking futures-util v0.3.17
[INFO] [stderr]     Checking structopt v0.3.23
[INFO] [stderr]     Checking tracing v0.1.29
[INFO] [stderr]     Checking inferno v0.10.7
[INFO] [stderr]     Checking pin-project v0.4.28
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking contrafact v0.1.0-dev.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/check.rs:35:20
[INFO] [stdout]    |
[INFO] [stdout] 35 |             panic!(msg);
[INFO] [stdout]    |                    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 35 |             panic!("{}", msg);
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 35 |             std::panic::panic_any(msg);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/fact.rs:49:16
[INFO] [stdout]    |
[INFO] [stdout] 49 |           panic!(format!(
[INFO] [stdout]    |  ________________^
[INFO] [stdout] 50 | |             "Could not satisfy a constraint even after {} iterations. Last check failure: {:?}",
[INFO] [stdout] 51 | |             SATISFY_ATTEMPTS, last_failure
[INFO] [stdout] 52 | |         ));
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 49 |         panic!(
[INFO] [stdout] 50 |             "Could not satisfy a constraint even after {} iterations. Last check failure: {:?}",
[INFO] [stdout] 51 |             SATISFY_ATTEMPTS, last_failure
[INFO] [stdout] 52 |         );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-executor v0.3.17
[INFO] [stderr]     Checking futures v0.3.17
[INFO] [stderr]     Checking tracing-serde v0.1.2
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking rmp-serde v0.15.5
[INFO] [stderr]     Checking serde-transcode v1.1.1
[INFO] [stderr]     Checking opentelemetry v0.8.0
[INFO] [stderr]     Checking tracing-subscriber v0.2.25
[INFO] [stderr]     Checking holochain_serialized_bytes v0.0.51
[INFO] [stderr]     Checking tracing-opentelemetry v0.8.0
[INFO] [stderr]     Checking observability v0.1.3
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/check.rs:35:20
[INFO] [stdout]    |
[INFO] [stdout] 35 |             panic!(msg);
[INFO] [stdout]    |                    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 35 |             panic!("{}", msg);
[INFO] [stdout]    |                    ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 35 |             std::panic::panic_any(msg);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/fact.rs:49:16
[INFO] [stdout]    |
[INFO] [stdout] 49 |           panic!(format!(
[INFO] [stdout]    |  ________________^
[INFO] [stdout] 50 | |             "Could not satisfy a constraint even after {} iterations. Last check failure: {:?}",
[INFO] [stdout] 51 | |             SATISFY_ATTEMPTS, last_failure
[INFO] [stdout] 52 | |         ));
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]    |
[INFO] [stdout] 49 |         panic!(
[INFO] [stdout] 50 |             "Could not satisfy a constraint even after {} iterations. Last check failure: {:?}",
[INFO] [stdout] 51 |             SATISFY_ATTEMPTS, last_failure
[INFO] [stdout] 52 |         );
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.17s
[INFO] running `Command { std: "docker" "inspect" "743b17a214f11049d9cc4a7259189a6f1a36a445338bf7fb6dac95ecbcc05b2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "743b17a214f11049d9cc4a7259189a6f1a36a445338bf7fb6dac95ecbcc05b2e", kill_on_drop: false }`
[INFO] [stdout] 743b17a214f11049d9cc4a7259189a6f1a36a445338bf7fb6dac95ecbcc05b2e
