[INFO] fetching crate libcli 0.3.9...
[INFO] testing libcli-0.3.9 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate libcli 0.3.9 into /workspace/builds/worker-3-tc2/source
[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-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate libcli 0.3.9 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate libcli 0.3.9 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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ebbf7e2488cd802a2975bd0fc96da218701638ec2b16dc1ea546fc6b1557aac
[INFO] running `Command { std: "docker" "start" "-a" "8ebbf7e2488cd802a2975bd0fc96da218701638ec2b16dc1ea546fc6b1557aac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ebbf7e2488cd802a2975bd0fc96da218701638ec2b16dc1ea546fc6b1557aac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ebbf7e2488cd802a2975bd0fc96da218701638ec2b16dc1ea546fc6b1557aac", kill_on_drop: false }`
[INFO] [stdout] 8ebbf7e2488cd802a2975bd0fc96da218701638ec2b16dc1ea546fc6b1557aac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fa4cb918febbc31a3be12257e5f5d5b5de2251db6657dfedd7611354f69c104
[INFO] running `Command { std: "docker" "start" "-a" "2fa4cb918febbc31a3be12257e5f5d5b5de2251db6657dfedd7611354f69c104", kill_on_drop: false }`
[INFO] [stderr]    Compiling libcli v0.3.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "2fa4cb918febbc31a3be12257e5f5d5b5de2251db6657dfedd7611354f69c104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fa4cb918febbc31a3be12257e5f5d5b5de2251db6657dfedd7611354f69c104", kill_on_drop: false }`
[INFO] [stdout] 2fa4cb918febbc31a3be12257e5f5d5b5de2251db6657dfedd7611354f69c104
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2232e9da47174a1989c1edebbab71b4cf1b489cd66dfd45a3477251320a8861a
[INFO] running `Command { std: "docker" "start" "-a" "2232e9da47174a1989c1edebbab71b4cf1b489cd66dfd45a3477251320a8861a", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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: 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/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] 60 |         let config = args::Config::new(&args[..], &specs).unwrap_or_else(|err| panic!("{}", 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 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/edition-guide/rust-2021/panic-macro-consistency.html>
[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] 
[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 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/edition-guide/rust-2021/panic-macro-consistency.html>
[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] 
[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 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/edition-guide/rust-2021/panic-macro-consistency.html>
[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] 
[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 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/edition-guide/rust-2021/panic-macro-consistency.html>
[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] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "2232e9da47174a1989c1edebbab71b4cf1b489cd66dfd45a3477251320a8861a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2232e9da47174a1989c1edebbab71b4cf1b489cd66dfd45a3477251320a8861a", kill_on_drop: false }`
[INFO] [stdout] 2232e9da47174a1989c1edebbab71b4cf1b489cd66dfd45a3477251320a8861a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9c2841ed3736af9704dd5fc2375d9498d52b6a7dae45dd7e562f81311353a08c
[INFO] running `Command { std: "docker" "start" "-a" "9c2841ed3736af9704dd5fc2375d9498d52b6a7dae45dd7e562f81311353a08c", kill_on_drop: false }`
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/argument_parsing.rs:60:87
[INFO] [stderr]    |
[INFO] [stderr] 60 |         let config = args::Config::new(&args[..], &specs).unwrap_or_else(|err| panic!(err));
[INFO] [stderr]    |                                                                                       ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]    |
[INFO] [stderr] 60 |         let config = args::Config::new(&args[..], &specs).unwrap_or_else(|err| panic!("{}", err));
[INFO] [stderr]    |                                                                                       +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> tests/argument_parsing.rs:91:74
[INFO] [stderr]    |
[INFO] [stderr] 91 |         args::Config::new(&args[..], &specs).unwrap_or_else(|err| panic!(err));
[INFO] [stderr]    |                                                                          ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]    |
[INFO] [stderr] 91 |         args::Config::new(&args[..], &specs).unwrap_or_else(|err| panic!("{}", err));
[INFO] [stderr]    |                                                                          +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/argument_parsing.rs:106:74
[INFO] [stderr]     |
[INFO] [stderr] 106 |         args::Config::new(&args[..], &specs).unwrap_or_else(|err| panic!(err));
[INFO] [stderr]     |                                                                          ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]     |
[INFO] [stderr] 106 |         args::Config::new(&args[..], &specs).unwrap_or_else(|err| panic!("{}", err));
[INFO] [stderr]     |                                                                          +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/argument_parsing.rs:130:74
[INFO] [stderr]     |
[INFO] [stderr] 130 |         args::Config::new(&args[..], &specs).unwrap_or_else(|err| panic!(err));
[INFO] [stderr]     |                                                                          ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]     |
[INFO] [stderr] 130 |         args::Config::new(&args[..], &specs).unwrap_or_else(|err| panic!("{}", err));
[INFO] [stderr]     |                                                                          +++++
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> tests/argument_parsing.rs:160:74
[INFO] [stderr]     |
[INFO] [stderr] 160 |         args::Config::new(&args[..], &specs).unwrap_or_else(|err| panic!(err));
[INFO] [stderr]     |                                                                          ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to `Display` the message
[INFO] [stderr]     |
[INFO] [stderr] 160 |         args::Config::new(&args[..], &specs).unwrap_or_else(|err| panic!("{}", err));
[INFO] [stderr]     |                                                                          +++++
[INFO] [stderr] 
[INFO] [stderr] warning: `libcli` (test "argument_parsing") generated 5 warnings (run `cargo fix --test "argument_parsing"` to apply 5 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/libcli-dc3f8c9fd8a8f44f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/libcli-523a55a41fc0cf07)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/argument_parsing.rs (/opt/rustwide/target/debug/deps/argument_parsing-9cfdb63a20f4604b)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::parse_0 ... ok
[INFO] [stdout] test tests::parse_dup_switch ... ok
[INFO] [stdout] test tests::parse_too_few - should panic ... ok
[INFO] [stdout] test tests::parse_dup - should panic ... ok
[INFO] [stdout] test tests::parse_too_many - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libcli
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/args.rs - args::OptionSpec (line 31) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9c2841ed3736af9704dd5fc2375d9498d52b6a7dae45dd7e562f81311353a08c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c2841ed3736af9704dd5fc2375d9498d52b6a7dae45dd7e562f81311353a08c", kill_on_drop: false }`
[INFO] [stdout] 9c2841ed3736af9704dd5fc2375d9498d52b6a7dae45dd7e562f81311353a08c