[INFO] fetching crate libcli 0.3.9...
[INFO] checking libcli-0.3.9 against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] extracting crate libcli 0.3.9 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate libcli 0.3.9 on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libcli 0.3.9
[INFO] finished tweaking crates.io crate libcli 0.3.9
[INFO] tweaked toml for crates.io crate libcli 0.3.9 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate libcli 0.3.9 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5d638d59ed7d5a747d01a7c860177413cb0da7fc2bf59af1420856529d9f22c
[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" "f5d638d59ed7d5a747d01a7c860177413cb0da7fc2bf59af1420856529d9f22c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5d638d59ed7d5a747d01a7c860177413cb0da7fc2bf59af1420856529d9f22c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5d638d59ed7d5a747d01a7c860177413cb0da7fc2bf59af1420856529d9f22c", kill_on_drop: false }`
[INFO] [stdout] f5d638d59ed7d5a747d01a7c860177413cb0da7fc2bf59af1420856529d9f22c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f11a9ca086254250b3925a90481604fd9e04f7295bd8ab9acb044213f5942fe
[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" "4f11a9ca086254250b3925a90481604fd9e04f7295bd8ab9acb044213f5942fe", kill_on_drop: false }`
[INFO] [stderr]     Checking libcli v0.3.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/argument_parsing.rs:60:87
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let config = args::Config::new(&args[..], &specs).unwrap_or_else(|err| panic!(err));
[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] 60 |         let config = args::Config::new(&args[..], &specs).unwrap_or_else(|err| panic!("{}", err));
[INFO] [stdout]    |                                                                                       ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 60 |         let config = args::Config::new(&args[..], &specs).unwrap_or_else(|err| std::panic::panic_any(err));
[INFO] [stdout]    |                                                                                ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> tests/argument_parsing.rs:91:74
[INFO] [stdout]    |
[INFO] [stdout] 91 |         args::Config::new(&args[..], &specs).unwrap_or_else(|err| panic!(err));
[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] 91 |         args::Config::new(&args[..], &specs).unwrap_or_else(|err| panic!("{}", err));
[INFO] [stdout]    |                                                                          ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 91 |         args::Config::new(&args[..], &specs).unwrap_or_else(|err| std::panic::panic_any(err));
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/argument_parsing.rs:106:74
[INFO] [stdout]     |
[INFO] [stdout] 106 |         args::Config::new(&args[..], &specs).unwrap_or_else(|err| panic!(err));
[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] 106 |         args::Config::new(&args[..], &specs).unwrap_or_else(|err| panic!("{}", err));
[INFO] [stdout]     |                                                                          ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 106 |         args::Config::new(&args[..], &specs).unwrap_or_else(|err| std::panic::panic_any(err));
[INFO] [stdout]     |                                                                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/argument_parsing.rs:130:74
[INFO] [stdout]     |
[INFO] [stdout] 130 |         args::Config::new(&args[..], &specs).unwrap_or_else(|err| panic!(err));
[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] 130 |         args::Config::new(&args[..], &specs).unwrap_or_else(|err| panic!("{}", err));
[INFO] [stdout]     |                                                                          ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 130 |         args::Config::new(&args[..], &specs).unwrap_or_else(|err| std::panic::panic_any(err));
[INFO] [stdout]     |                                                                   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> tests/argument_parsing.rs:160:74
[INFO] [stdout]     |
[INFO] [stdout] 160 |         args::Config::new(&args[..], &specs).unwrap_or_else(|err| panic!(err));
[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] 160 |         args::Config::new(&args[..], &specs).unwrap_or_else(|err| panic!("{}", err));
[INFO] [stdout]     |                                                                          ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 160 |         args::Config::new(&args[..], &specs).unwrap_or_else(|err| std::panic::panic_any(err));
[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 0.52s
[INFO] running `Command { std: "docker" "inspect" "4f11a9ca086254250b3925a90481604fd9e04f7295bd8ab9acb044213f5942fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f11a9ca086254250b3925a90481604fd9e04f7295bd8ab9acb044213f5942fe", kill_on_drop: false }`
[INFO] [stdout] 4f11a9ca086254250b3925a90481604fd9e04f7295bd8ab9acb044213f5942fe