[INFO] cloning repository https://github.com/pexip/os-rust-quickcheck
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pexip/os-rust-quickcheck" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpexip%2Fos-rust-quickcheck", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpexip%2Fos-rust-quickcheck'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 68389b652315dfaf3fa60732672977930180dcad
[INFO] checking pexip/os-rust-quickcheck against master#094a6204f590e6b4770b5f26359dd17a07897adf for pr-121557-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpexip%2Fos-rust-quickcheck" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pexip/os-rust-quickcheck on toolchain 094a6204f590e6b4770b5f26359dd17a07897adf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+094a6204f590e6b4770b5f26359dd17a07897adf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pexip/os-rust-quickcheck
[INFO] finished tweaking git repo https://github.com/pexip/os-rust-quickcheck
[INFO] tweaked toml for git repo https://github.com/pexip/os-rust-quickcheck written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/pexip/os-rust-quickcheck already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+094a6204f590e6b4770b5f26359dd17a07897adf" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded env_logger v0.8.2
[INFO] [stderr]   Downloaded log v0.4.11
[INFO] [stderr]   Downloaded getrandom v0.2.0
[INFO] [stderr]   Downloaded rand_core v0.6.0
[INFO] [stderr]   Downloaded rand v0.8.0
[INFO] [stderr]   Downloaded regex v1.4.2
[INFO] [stderr]   Downloaded regex-syntax v0.6.21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+094a6204f590e6b4770b5f26359dd17a07897adf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b2c2cd94e50a4117ca5bd4e9e10debc15bf20169cd1e48380d05eb8d8dd4045
[INFO] running `Command { std: "docker" "start" "-a" "4b2c2cd94e50a4117ca5bd4e9e10debc15bf20169cd1e48380d05eb8d8dd4045", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b2c2cd94e50a4117ca5bd4e9e10debc15bf20169cd1e48380d05eb8d8dd4045", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b2c2cd94e50a4117ca5bd4e9e10debc15bf20169cd1e48380d05eb8d8dd4045", kill_on_drop: false }`
[INFO] [stdout] 4b2c2cd94e50a4117ca5bd4e9e10debc15bf20169cd1e48380d05eb8d8dd4045
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+094a6204f590e6b4770b5f26359dd17a07897adf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfbd35c84584c101f5835dc0a36c06687b2288df01da34e6ef2fa94b19dbc4b7
[INFO] running `Command { std: "docker" "start" "-a" "cfbd35c84584c101f5835dc0a36c06687b2288df01da34e6ef2fa94b19dbc4b7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking rand_core v0.6.0
[INFO] [stderr]     Checking rand v0.8.0
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking env_logger v0.8.2
[INFO] [stderr]     Checking quickcheck v1.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/arbitrary.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | use rand::{self, Rng, SeedableRng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/arbitrary.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | use rand::{self, Rng, SeedableRng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Ord` is imported redundantly
[INFO] [stdout]  --> src/tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::Ord;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/094a6204f590e6b4770b5f26359dd17a07897adf/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Ord` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AShow` is never used
[INFO] [stdout]    --> src/tester.rs:416:7
[INFO] [stdout]     |
[INFO] [stdout] 416 | trait AShow: Arbitrary + Debug {}
[INFO] [stdout]     |       ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/tester.rs:165:35
[INFO] [stdout]     |
[INFO] [stdout] 165 |             Err(result) => panic!(result.failed_msg()),
[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: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 165 |             Err(result) => panic!("{}", result.failed_msg()),
[INFO] [stdout]     |                                   +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AShow` is never used
[INFO] [stdout]    --> src/tester.rs:416:7
[INFO] [stdout]     |
[INFO] [stdout] 416 | trait AShow: Arbitrary + Debug {}
[INFO] [stdout]     |       ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/arbitrary.rs:1368:32
[INFO] [stdout]      |
[INFO] [stdout] 1368 |                           panic!(format!(
[INFO] [stdout]      |  ________________________________^
[INFO] [stdout] 1369 | |                             "Element {:?} was not found \
[INFO] [stdout] 1370 | |                              in shrink results {:?}",
[INFO] [stdout] 1371 | |                             n, shrunk
[INFO] [stdout] 1372 | |                         ));
[INFO] [stdout]      | |_________________________^
[INFO] [stdout] ...
[INFO] [stdout] 1381 |           define_float_eq!(f32);
[INFO] [stdout]      |           --------------------- in this macro invocation
[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]      = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]      = note: this warning originates in the macro `define_float_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]      |
[INFO] [stdout] 1368 ~                         panic!(
[INFO] [stdout] 1369 |                             "Element {:?} was not found \
[INFO] [stdout] 1370 |                              in shrink results {:?}",
[INFO] [stdout] 1371 |                             n, shrunk
[INFO] [stdout] 1372 ~                         );
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/arbitrary.rs:1368:32
[INFO] [stdout]      |
[INFO] [stdout] 1368 |                           panic!(format!(
[INFO] [stdout]      |  ________________________________^
[INFO] [stdout] 1369 | |                             "Element {:?} was not found \
[INFO] [stdout] 1370 | |                              in shrink results {:?}",
[INFO] [stdout] 1371 | |                             n, shrunk
[INFO] [stdout] 1372 | |                         ));
[INFO] [stdout]      | |_________________________^
[INFO] [stdout] ...
[INFO] [stdout] 1393 |           define_float_eq!(f64);
[INFO] [stdout]      |           --------------------- in this macro invocation
[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]      = note: this warning originates in the macro `define_float_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]      |
[INFO] [stdout] 1368 ~                         panic!(
[INFO] [stdout] 1369 |                             "Element {:?} was not found \
[INFO] [stdout] 1370 |                              in shrink results {:?}",
[INFO] [stdout] 1371 |                             n, shrunk
[INFO] [stdout] 1372 ~                         );
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/tester.rs:165:35
[INFO] [stdout]     |
[INFO] [stdout] 165 |             Err(result) => panic!(result.failed_msg()),
[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] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 165 |             Err(result) => panic!("{}", result.failed_msg()),
[INFO] [stdout]     |                                   +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.72s
[INFO] running `Command { std: "docker" "inspect" "cfbd35c84584c101f5835dc0a36c06687b2288df01da34e6ef2fa94b19dbc4b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfbd35c84584c101f5835dc0a36c06687b2288df01da34e6ef2fa94b19dbc4b7", kill_on_drop: false }`
[INFO] [stdout] cfbd35c84584c101f5835dc0a36c06687b2288df01da34e6ef2fa94b19dbc4b7
[INFO] checking pexip/os-rust-quickcheck against try#983b9dcd30ff3bfd46345f68ea89b90bc1457a15 for pr-121557-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpexip%2Fos-rust-quickcheck" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pexip/os-rust-quickcheck on toolchain 983b9dcd30ff3bfd46345f68ea89b90bc1457a15
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+983b9dcd30ff3bfd46345f68ea89b90bc1457a15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pexip/os-rust-quickcheck
[INFO] finished tweaking git repo https://github.com/pexip/os-rust-quickcheck
[INFO] tweaked toml for git repo https://github.com/pexip/os-rust-quickcheck written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/pexip/os-rust-quickcheck already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+983b9dcd30ff3bfd46345f68ea89b90bc1457a15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+983b9dcd30ff3bfd46345f68ea89b90bc1457a15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4362993e99c8e2c31dca990561382210e5b3030d741d401b22c278a35753823b
[INFO] running `Command { std: "docker" "start" "-a" "4362993e99c8e2c31dca990561382210e5b3030d741d401b22c278a35753823b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4362993e99c8e2c31dca990561382210e5b3030d741d401b22c278a35753823b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4362993e99c8e2c31dca990561382210e5b3030d741d401b22c278a35753823b", kill_on_drop: false }`
[INFO] [stdout] 4362993e99c8e2c31dca990561382210e5b3030d741d401b22c278a35753823b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+983b9dcd30ff3bfd46345f68ea89b90bc1457a15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 194e872ae26612df30dcb1ae5a7a7e07f21176f001e3d0f9784f3e88f78bb3df
[INFO] running `Command { std: "docker" "start" "-a" "194e872ae26612df30dcb1ae5a7a7e07f21176f001e3d0f9784f3e88f78bb3df", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking rand_core v0.6.0
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking rand v0.8.0
[INFO] [stderr]     Checking env_logger v0.8.2
[INFO] [stderr]     Checking quickcheck v1.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/arbitrary.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | use rand::{self, Rng, SeedableRng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]   --> src/arbitrary.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | use rand::{self, Rng, SeedableRng};
[INFO] [stdout]    |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Ord` is imported redundantly
[INFO] [stdout]  --> src/tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cmp::Ord;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/983b9dcd30ff3bfd46345f68ea89b90bc1457a15/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Ord` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AShow` is never used
[INFO] [stdout]    --> src/tester.rs:416:7
[INFO] [stdout]     |
[INFO] [stdout] 416 | trait AShow: Arbitrary + Debug {}
[INFO] [stdout]     |       ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/tester.rs:165:35
[INFO] [stdout]     |
[INFO] [stdout] 165 |             Err(result) => panic!(result.failed_msg()),
[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: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 165 |             Err(result) => panic!("{}", result.failed_msg()),
[INFO] [stdout]     |                                   +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `AShow` is never used
[INFO] [stdout]    --> src/tester.rs:416:7
[INFO] [stdout]     |
[INFO] [stdout] 416 | trait AShow: Arbitrary + Debug {}
[INFO] [stdout]     |       ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/arbitrary.rs:1368:32
[INFO] [stdout]      |
[INFO] [stdout] 1368 |                           panic!(format!(
[INFO] [stdout]      |  ________________________________^
[INFO] [stdout] 1369 | |                             "Element {:?} was not found \
[INFO] [stdout] 1370 | |                              in shrink results {:?}",
[INFO] [stdout] 1371 | |                             n, shrunk
[INFO] [stdout] 1372 | |                         ));
[INFO] [stdout]      | |_________________________^
[INFO] [stdout] ...
[INFO] [stdout] 1381 |           define_float_eq!(f32);
[INFO] [stdout]      |           --------------------- in this macro invocation
[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]      = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]      = note: this warning originates in the macro `define_float_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]      |
[INFO] [stdout] 1368 ~                         panic!(
[INFO] [stdout] 1369 |                             "Element {:?} was not found \
[INFO] [stdout] 1370 |                              in shrink results {:?}",
[INFO] [stdout] 1371 |                             n, shrunk
[INFO] [stdout] 1372 ~                         );
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/arbitrary.rs:1368:32
[INFO] [stdout]      |
[INFO] [stdout] 1368 |                           panic!(format!(
[INFO] [stdout]      |  ________________________________^
[INFO] [stdout] 1369 | |                             "Element {:?} was not found \
[INFO] [stdout] 1370 | |                              in shrink results {:?}",
[INFO] [stdout] 1371 | |                             n, shrunk
[INFO] [stdout] 1372 | |                         ));
[INFO] [stdout]      | |_________________________^
[INFO] [stdout] ...
[INFO] [stdout] 1393 |           define_float_eq!(f64);
[INFO] [stdout]      |           --------------------- in this macro invocation
[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]      = note: this warning originates in the macro `define_float_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]      |
[INFO] [stdout] 1368 ~                         panic!(
[INFO] [stdout] 1369 |                             "Element {:?} was not found \
[INFO] [stdout] 1370 |                              in shrink results {:?}",
[INFO] [stdout] 1371 |                             n, shrunk
[INFO] [stdout] 1372 ~                         );
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/tester.rs:165:35
[INFO] [stdout]     |
[INFO] [stdout] 165 |             Err(result) => panic!(result.failed_msg()),
[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] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 165 |             Err(result) => panic!("{}", result.failed_msg()),
[INFO] [stdout]     |                                   +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.23s
[INFO] running `Command { std: "docker" "inspect" "194e872ae26612df30dcb1ae5a7a7e07f21176f001e3d0f9784f3e88f78bb3df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "194e872ae26612df30dcb1ae5a7a7e07f21176f001e3d0f9784f3e88f78bb3df", kill_on_drop: false }`
[INFO] [stdout] 194e872ae26612df30dcb1ae5a7a7e07f21176f001e3d0f9784f3e88f78bb3df
