[INFO] fetching crate contrafact 0.1.0-dev.1...
[INFO] testing contrafact-0.1.0-dev.1 against 1.54.0 for beta-1.55-1
[INFO] extracting crate contrafact 0.1.0-dev.1 into /workspace/builds/worker-83/source
[INFO] validating manifest of crates.io crate contrafact 0.1.0-dev.1 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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-83/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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" "+1.54.0" "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-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f7c1a5e36b636fe1c2a152395443b9775bde7b95bc3ea70cedd47cd9090f963
[INFO] running `Command { std: "docker" "start" "-a" "9f7c1a5e36b636fe1c2a152395443b9775bde7b95bc3ea70cedd47cd9090f963", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f7c1a5e36b636fe1c2a152395443b9775bde7b95bc3ea70cedd47cd9090f963", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f7c1a5e36b636fe1c2a152395443b9775bde7b95bc3ea70cedd47cd9090f963", kill_on_drop: false }`
[INFO] [stdout] 9f7c1a5e36b636fe1c2a152395443b9775bde7b95bc3ea70cedd47cd9090f963
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 301c173adc6ffa97d28505b62f0d18b1cb0d48f5cb3ad1bcaf2f5ee9859d3bc7
[INFO] running `Command { std: "docker" "start" "-a" "301c173adc6ffa97d28505b62f0d18b1cb0d48f5cb3ad1bcaf2f5ee9859d3bc7", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling tracing-core v0.1.18
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling derive_arbitrary v1.0.1
[INFO] [stderr]    Compiling derive_more v0.99.16
[INFO] [stderr]    Compiling arbitrary v1.0.1
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling 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_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[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 is no longer accepted in Rust 2021
[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 18.24s
[INFO] running `Command { std: "docker" "inspect" "301c173adc6ffa97d28505b62f0d18b1cb0d48f5cb3ad1bcaf2f5ee9859d3bc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "301c173adc6ffa97d28505b62f0d18b1cb0d48f5cb3ad1bcaf2f5ee9859d3bc7", kill_on_drop: false }`
[INFO] [stdout] 301c173adc6ffa97d28505b62f0d18b1cb0d48f5cb3ad1bcaf2f5ee9859d3bc7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c044fdc14d68e190506bea3bc4239f8da26afd0d6d86bcc3ffde7355f78a2f6a
[INFO] running `Command { std: "docker" "start" "-a" "c044fdc14d68e190506bea3bc4239f8da26afd0d6d86bcc3ffde7355f78a2f6a", 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] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling futures-sink v0.3.16
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling slab v0.4.4
[INFO] [stderr]    Compiling futures-io v0.3.16
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling bytemuck v1.7.2
[INFO] [stderr]    Compiling str_stack v0.1.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling sharded-slab v0.1.3
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling quick-xml v0.20.0
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling holochain_serialized_bytes_derive v0.0.51
[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_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[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 is no longer accepted in Rust 2021
[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]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling rgb v0.8.27
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rmp v0.8.10
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling ahash v0.6.3
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling num-format v0.4.0
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling const-random-macro v0.1.13
[INFO] [stderr]    Compiling const-random v0.1.13
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling structopt-derive v0.4.15
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling dashmap v3.11.10
[INFO] [stderr]    Compiling pin-project v0.4.28
[INFO] [stderr]    Compiling structopt v0.3.22
[INFO] [stderr]    Compiling inferno v0.10.6
[INFO] [stderr]    Compiling futures-executor v0.3.16
[INFO] [stderr]    Compiling futures v0.3.16
[INFO] [stderr]    Compiling tracing-serde v0.1.2
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling rmp-serde v0.15.5
[INFO] [stderr]    Compiling serde_bytes v0.11.5
[INFO] [stderr]    Compiling serde-transcode v1.1.1
[INFO] [stderr]    Compiling opentelemetry v0.8.0
[INFO] [stderr]    Compiling tracing-subscriber v0.2.19
[INFO] [stderr]    Compiling holochain_serialized_bytes v0.0.51
[INFO] [stderr]    Compiling tracing-opentelemetry v0.8.0
[INFO] [stderr]    Compiling observability v0.1.3
[INFO] [stderr]    Compiling 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_panic)]` on by default
[INFO] [stdout]    = note: this is no longer accepted in Rust 2021
[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 is no longer accepted in Rust 2021
[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 test [unoptimized + debuginfo] target(s) in 23.97s
[INFO] running `Command { std: "docker" "inspect" "c044fdc14d68e190506bea3bc4239f8da26afd0d6d86bcc3ffde7355f78a2f6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c044fdc14d68e190506bea3bc4239f8da26afd0d6d86bcc3ffde7355f78a2f6a", kill_on_drop: false }`
[INFO] [stdout] c044fdc14d68e190506bea3bc4239f8da26afd0d6d86bcc3ffde7355f78a2f6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3b21ff10430a6861bad1afd9a90c3eb9005e86d3bc6233949b13dd92f189f8e1
[INFO] running `Command { std: "docker" "start" "-a" "3b21ff10430a6861bad1afd9a90c3eb9005e86d3bc6233949b13dd92f189f8e1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/check.rs:35:20
[INFO] [stderr]    |
[INFO] [stderr] 35 |             panic!(msg);
[INFO] [stderr]    |                    ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]    |
[INFO] [stderr] 35 |             panic!("{}", msg);
[INFO] [stderr]    |                    ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]    |
[INFO] [stderr] 35 |             std::panic::panic_any(msg);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/fact.rs:49:16
[INFO] [stderr]    |
[INFO] [stderr] 49 |           panic!(format!(
[INFO] [stderr]    |  ________________^
[INFO] [stderr] 50 | |             "Could not satisfy a constraint even after {} iterations. Last check failure: {:?}",
[INFO] [stderr] 51 | |             SATISFY_ATTEMPTS, last_failure
[INFO] [stderr] 52 | |         ));
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]    |
[INFO] [stderr] 49 |         panic!(
[INFO] [stderr] 50 |             "Could not satisfy a constraint even after {} iterations. Last check failure: {:?}",
[INFO] [stderr] 51 |             SATISFY_ATTEMPTS, last_failure
[INFO] [stderr] 52 |         );
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/check.rs:35:20
[INFO] [stderr]    |
[INFO] [stderr] 35 |             panic!(msg);
[INFO] [stderr]    |                    ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]    |
[INFO] [stderr] 35 |             panic!("{}", msg);
[INFO] [stderr]    |                    ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]    |
[INFO] [stderr] 35 |             std::panic::panic_any(msg);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> src/fact.rs:49:16
[INFO] [stderr]    |
[INFO] [stderr] 49 |           panic!(format!(
[INFO] [stderr]    |  ________________^
[INFO] [stderr] 50 | |             "Could not satisfy a constraint even after {} iterations. Last check failure: {:?}",
[INFO] [stderr] 51 | |             SATISFY_ATTEMPTS, last_failure
[INFO] [stderr] 52 | |         ));
[INFO] [stderr]    | |_________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this is no longer accepted in Rust 2021
[INFO] [stderr]    = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]    |
[INFO] [stderr] 49 |         panic!(
[INFO] [stderr] 50 |             "Could not satisfy a constraint even after {} iterations. Last check failure: {:?}",
[INFO] [stderr] 51 |             SATISFY_ATTEMPTS, last_failure
[INFO] [stderr] 52 |         );
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/contrafact-c924d3ecc740987e)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test check::tests::test_check_fallible ... ok
[INFO] [stdout] test impls::primitives::tests::test_eq ... ok
[INFO] [stdout] test impls::primitives::tests::test_or ... ok
[INFO] [stdout] test impls::primitives::tests::test_not ... ok
[INFO] [stdout] test impls::prism::tests::stateless ... ok
[INFO] [stdout] test impls::lens::tests::test ... ok
[INFO] [stdout] test impls::mapped::test_mapped_fact ... ok
[INFO] [stdout] test impls::prism::tests::stateful ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.90s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/chainlink.rs (/opt/rustwide/target/debug/deps/chainlink-a1365dc1c3601797)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_link ... ok
[INFO] [stdout] test test_wrapper ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.88s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/complex.rs (/opt/rustwide/target/debug/deps/complex-ab0b0b411638c4ec)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_omega_fact ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.87s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests contrafact
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test src/check.rs - check::Check::pass (line 81) ... ok
[INFO] [stdout] test src/check.rs - check_fallible (line 118) ... ok
[INFO] [stdout] test src/check.rs - check::Check::check (line 66) ... ok
[INFO] [stdout] test src/check.rs - check::Check::fail (line 93) ... ok
[INFO] [stdout] test src/impls/prism.rs - impls::prism::prism (line 21) ... ok
[INFO] [stdout] test src/impls/mapped.rs - impls::mapped::mapped (line 31) ... ok
[INFO] [stdout] test src/check.rs - check::Check::result (line 51) ... ok
[INFO] [stdout] test src/lib.rs - (line 13) ... ok
[INFO] [stdout] test src/impls/lens.rs - impls::lens::lens (line 18) ... ok
[INFO] [stdout] test src/impls/brute.rs - impls::brute::brute (line 37) ... ok
[INFO] [stdout] test src/satisfy.rs - facts (line 51) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.20s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3b21ff10430a6861bad1afd9a90c3eb9005e86d3bc6233949b13dd92f189f8e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b21ff10430a6861bad1afd9a90c3eb9005e86d3bc6233949b13dd92f189f8e1", kill_on_drop: false }`
[INFO] [stdout] 3b21ff10430a6861bad1afd9a90c3eb9005e86d3bc6233949b13dd92f189f8e1
