[INFO] fetching crate pingkeeper 3.2.0...
[INFO] checking pingkeeper-3.2.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate pingkeeper 3.2.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate pingkeeper 3.2.0
[INFO] finished tweaking crates.io crate pingkeeper 3.2.0
[INFO] tweaked toml for crates.io crate pingkeeper 3.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pingkeeper 3.2.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate pingkeeper 3.2.0 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa82eba99922992479dea82dfbf8ba50bffd74c322e87a923b36a6b5e8f7bfeb
[INFO] running `Command { std: "docker" "start" "-a" "fa82eba99922992479dea82dfbf8ba50bffd74c322e87a923b36a6b5e8f7bfeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa82eba99922992479dea82dfbf8ba50bffd74c322e87a923b36a6b5e8f7bfeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa82eba99922992479dea82dfbf8ba50bffd74c322e87a923b36a6b5e8f7bfeb", kill_on_drop: false }`
[INFO] [stdout] fa82eba99922992479dea82dfbf8ba50bffd74c322e87a923b36a6b5e8f7bfeb
[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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6db4b6df52da743466df611fdfeee12230bebbf281c040fc288efea6b848615
[INFO] running `Command { std: "docker" "start" "-a" "f6db4b6df52da743466df611fdfeee12230bebbf281c040fc288efea6b848615", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking pipeliner v1.0.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling structopt-derive v0.4.6
[INFO] [stderr]     Checking structopt v0.3.13
[INFO] [stderr]     Checking pingkeeper v3.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/pingkeeper/opt.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | /     /// Command to run.
[INFO] [stdout] 31 | |     #[structopt(name = "COMMAND")]
[INFO] [stdout] 32 | |     pub command: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/pingkeeper/opt.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     /// Space separated list of addresses or hosts (ping).
[INFO] [stdout] 34 | |     ///
[INFO] [stdout] 35 | |     /// For direct connection: List of IPv4 and IPv6, with or without port.
[INFO] [stdout] 36 | |     ///
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |     #[structopt(short = "H", long, default_value = "8.8.8.8 8.8.6.6 1.1.1.1 1.0.0.1")]
[INFO] [stdout] 41 | |     pub hosts: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/pingkeeper/opt.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | /     /// Options for `ping` command, requires `--use-ping`.
[INFO] [stdout] 57 | |     #[structopt(long, name = "opts", default_value = "-c1")]
[INFO] [stdout] 58 | |     pub ping_opt: String,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/pingkeeper/opt.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | /     /// Use a custom command to check.
[INFO] [stdout] 61 | |     ///
[INFO] [stdout] 62 | |     /// Check network or something else. This will trigger the execution / kill flow as if it was a network check.
[INFO] [stdout] 63 | |     /// Example: `--check-cmd "cat canary.txt"`
[INFO] [stdout] 64 | |     #[structopt(long)]
[INFO] [stdout] 65 | |     pub check_cmd: Option<String>,
[INFO] [stdout]    | |_________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/pingkeeper/opt.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 | /     /// Signal to kill <COMMAND>.
[INFO] [stdout] 82 | |     ///
[INFO] [stdout] 83 | |     /// Could be any unix signal: `SIGINT`, `SIGTERM`, etc.
[INFO] [stdout] 84 | |     #[structopt(short, long, default_value = "SIGINT")]
[INFO] [stdout] 85 | |     pub signal: String,
[INFO] [stdout]    | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/pingkeeper/opt.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 | /     /// Use a custom command to kill.
[INFO] [stdout] 87 | |     ///
[INFO] [stdout] 88 | |     /// Example: `--kill-cmd "echo \"My baby shot me down\" >> bang_bang.log"`
[INFO] [stdout] 89 | |     #[structopt(long)]
[INFO] [stdout] 90 | |     pub kill_cmd: Option<String>,
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/pingkeeper.rs:268:27
[INFO] [stdout]     |
[INFO] [stdout] 268 |             res => panic!(format!("Invalid result {:?}", res)),
[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: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 268 -             res => panic!(format!("Invalid result {:?}", res)),
[INFO] [stdout] 268 +             res => panic!("Invalid result {:?}", res),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/pingkeeper.rs:273:27
[INFO] [stdout]     |
[INFO] [stdout] 273 |             res => panic!(format!("Invalid result {:?}", res)),
[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: 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] 273 -             res => panic!(format!("Invalid result {:?}", res)),
[INFO] [stdout] 273 +             res => panic!("Invalid result {:?}", res),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/pingkeeper.rs:278:27
[INFO] [stdout]     |
[INFO] [stdout] 278 |             res => panic!(format!("Invalid result {:?}", res)),
[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: 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] 278 -             res => panic!(format!("Invalid result {:?}", res)),
[INFO] [stdout] 278 +             res => panic!("Invalid result {:?}", res),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pingkeeper` (bin "pingkeeper" test) due to 6 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/pingkeeper/opt.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | /     /// Command to run.
[INFO] [stdout] 31 | |     #[structopt(name = "COMMAND")]
[INFO] [stdout] 32 | |     pub command: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/pingkeeper/opt.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     /// Space separated list of addresses or hosts (ping).
[INFO] [stdout] 34 | |     ///
[INFO] [stdout] 35 | |     /// For direct connection: List of IPv4 and IPv6, with or without port.
[INFO] [stdout] 36 | |     ///
[INFO] [stdout] ...  |
[INFO] [stdout] 40 | |     #[structopt(short = "H", long, default_value = "8.8.8.8 8.8.6.6 1.1.1.1 1.0.0.1")]
[INFO] [stdout] 41 | |     pub hosts: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/pingkeeper/opt.rs:56:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | /     /// Options for `ping` command, requires `--use-ping`.
[INFO] [stdout] 57 | |     #[structopt(long, name = "opts", default_value = "-c1")]
[INFO] [stdout] 58 | |     pub ping_opt: String,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/pingkeeper/opt.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | /     /// Use a custom command to check.
[INFO] [stdout] 61 | |     ///
[INFO] [stdout] 62 | |     /// Check network or something else. This will trigger the execution / kill flow as if it was a network check.
[INFO] [stdout] 63 | |     /// Example: `--check-cmd "cat canary.txt"`
[INFO] [stdout] 64 | |     #[structopt(long)]
[INFO] [stdout] 65 | |     pub check_cmd: Option<String>,
[INFO] [stdout]    | |_________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/pingkeeper/opt.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 | /     /// Signal to kill <COMMAND>.
[INFO] [stdout] 82 | |     ///
[INFO] [stdout] 83 | |     /// Could be any unix signal: `SIGINT`, `SIGTERM`, etc.
[INFO] [stdout] 84 | |     #[structopt(short, long, default_value = "SIGINT")]
[INFO] [stdout] 85 | |     pub signal: String,
[INFO] [stdout]    | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/pingkeeper/opt.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 86 | /     /// Use a custom command to kill.
[INFO] [stdout] 87 | |     ///
[INFO] [stdout] 88 | |     /// Example: `--kill-cmd "echo \"My baby shot me down\" >> bang_bang.log"`
[INFO] [stdout] 89 | |     #[structopt(long)]
[INFO] [stdout] 90 | |     pub kill_cmd: Option<String>,
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pingkeeper` (bin "pingkeeper") due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "f6db4b6df52da743466df611fdfeee12230bebbf281c040fc288efea6b848615", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6db4b6df52da743466df611fdfeee12230bebbf281c040fc288efea6b848615", kill_on_drop: false }`
[INFO] [stdout] f6db4b6df52da743466df611fdfeee12230bebbf281c040fc288efea6b848615
