[INFO] fetching crate cool_asserts 1.1.0...
[INFO] checking cool_asserts-1.1.0 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate cool_asserts 1.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate cool_asserts 1.1.0 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cool_asserts 1.1.0
[INFO] finished tweaking crates.io crate cool_asserts 1.1.0
[INFO] tweaked toml for crates.io crate cool_asserts 1.1.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e5222c24b6f48a1dd96ebe4fbd463f305cfe9d7b5221b537c1e1048603bb8a6b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e5222c24b6f48a1dd96ebe4fbd463f305cfe9d7b5221b537c1e1048603bb8a6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e5222c24b6f48a1dd96ebe4fbd463f305cfe9d7b5221b537c1e1048603bb8a6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5222c24b6f48a1dd96ebe4fbd463f305cfe9d7b5221b537c1e1048603bb8a6b", kill_on_drop: false }`
[INFO] [stdout] e5222c24b6f48a1dd96ebe4fbd463f305cfe9d7b5221b537c1e1048603bb8a6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a13473d0de3d9c3bdf4ee6f748569e7b6ef052d269affbe49bb5741b9cbbb4f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9a13473d0de3d9c3bdf4ee6f748569e7b6ef052d269affbe49bb5741b9cbbb4f", kill_on_drop: false }`
[INFO] [stderr]     Checking cool_asserts v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:53:45
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let result = catch_unwind(|| panic!("Hello, World!".to_string()))
[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] 53 |         let result = catch_unwind(|| panic!("{}", "Hello, World!".to_string()))
[INFO] [stdout]    |                                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let result = catch_unwind(|| std::panic::panic_any("Hello, World!".to_string()))
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:67:45
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let result = catch_unwind(|| panic!(25)).expect_err("Function didn't panic????");
[INFO] [stdout]    |                                             ^^
[INFO] [stdout]    |
[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] 67 |         let result = catch_unwind(|| panic!("{}", 25)).expect_err("Function didn't panic????");
[INFO] [stdout]    |                                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let result = catch_unwind(|| std::panic::panic_any(25)).expect_err("Function didn't panic????");
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:682:35
[INFO] [stdout]     |
[INFO] [stdout] 682 |             assert_panics!(panic!(32), |_msg| {
[INFO] [stdout]     |                                   ^^
[INFO] [stdout]     |
[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] 682 |             assert_panics!(panic!("{}", 32), |_msg| {
[INFO] [stdout]     |                                   ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 682 |             assert_panics!(std::panic::panic_any(32), |_msg| {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:704:31
[INFO] [stdout]     |
[INFO] [stdout] 704 |         assert_panics!(panic!(244 as i32), |value: &i32| {
[INFO] [stdout]     |                               ^^^^^^^^^^
[INFO] [stdout]     |
[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] 704 |         assert_panics!(panic!("{}", 244 as i32), |value: &i32| {
[INFO] [stdout]     |                               ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 704 |         assert_panics!(std::panic::panic_any(244 as i32), |value: &i32| {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:712:35
[INFO] [stdout]     |
[INFO] [stdout] 712 |             assert_panics!(panic!(244 as i32), |_value: &i64| {
[INFO] [stdout]     |                                   ^^^^^^^^^^
[INFO] [stdout]     |
[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] 712 |             assert_panics!(panic!("{}", 244 as i32), |_value: &i64| {
[INFO] [stdout]     |                                   ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 712 |             assert_panics!(std::panic::panic_any(244 as i32), |_value: &i64| {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "9a13473d0de3d9c3bdf4ee6f748569e7b6ef052d269affbe49bb5741b9cbbb4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a13473d0de3d9c3bdf4ee6f748569e7b6ef052d269affbe49bb5741b9cbbb4f", kill_on_drop: false }`
[INFO] [stdout] 9a13473d0de3d9c3bdf4ee6f748569e7b6ef052d269affbe49bb5741b9cbbb4f