[INFO] fetching crate websocket-rs 0.1.4...
[INFO] checking websocket-rs-0.1.4 against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] extracting crate websocket-rs 0.1.4 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate websocket-rs 0.1.4
[INFO] finished tweaking crates.io crate websocket-rs 0.1.4
[INFO] tweaked toml for crates.io crate websocket-rs 0.1.4 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate websocket-rs 0.1.4 on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 106 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.12.3 (available: v0.22.1)
[INFO] [stderr]       Adding bytes v0.5.6 (available: v1.11.1)
[INFO] [stderr]       Adding http v0.2.12 (available: v1.4.0)
[INFO] [stderr]       Adding sha1 v0.6.1 (available: v0.11.0)
[INFO] [stderr]       Adding tokio v0.2.25 (available: v1.52.3)
[INFO] [stderr]       Adding tokio-util v0.3.1 (available: v0.7.18)
[INFO] [stderr]       Adding tracing-subscriber v0.2.25 (available: v0.3.23)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1d9377b64623ba59abc11dcfad7c5e3f352fa614e3c310c6aa750ba79621e27
[INFO] running `Command { std: "docker" "start" "-a" "b1d9377b64623ba59abc11dcfad7c5e3f352fa614e3c310c6aa750ba79621e27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1d9377b64623ba59abc11dcfad7c5e3f352fa614e3c310c6aa750ba79621e27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1d9377b64623ba59abc11dcfad7c5e3f352fa614e3c310c6aa750ba79621e27", kill_on_drop: false }`
[INFO] [stdout] b1d9377b64623ba59abc11dcfad7c5e3f352fa614e3c310c6aa750ba79621e27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 957f8cd69ecc7ae66fb54adbf739aa6475ef17fb04f3c4918441a87146eb9f68
[INFO] running `Command { std: "docker" "start" "-a" "957f8cd69ecc7ae66fb54adbf739aa6475ef17fb04f3c4918441a87146eb9f68", kill_on_drop: false }`
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]     Checking tracing-log v0.1.4
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling pin-project-internal v1.1.12
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]     Checking tracing-serde v0.1.3
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking futures-util v0.3.32
[INFO] [stderr]     Checking sha1 v0.6.1
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking pin-project v1.1.12
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking tracing-subscriber v0.2.25
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking futures-executor v0.3.32
[INFO] [stderr]     Checking futures v0.3.32
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking websocket-rs v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `key` is never read
[INFO] [stdout]   --> src/lib.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Websocket<S> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 29 |     key: Option<String>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Websocket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: feature `test` is declared but not used
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_features)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `key` is never read
[INFO] [stdout]   --> src/lib.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Websocket<S> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 29 |     key: Option<String>,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Websocket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]    --> src/codec.rs:272:9
[INFO] [stdout]     |
[INFO] [stdout] 272 |         frame!("8180e0350bbc", "", Opcode::Text);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be 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)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]     |
[INFO] [stdout] 265 |                 assert!(false, "failed to extract frame from '{:x}'", ...)
[INFO] [stdout]     |                                                                     +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 265 |                 assert!(false, "{}", "failed to extract frame from '{:x}'")
[INFO] [stdout]     |                                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]    --> src/codec.rs:277:9
[INFO] [stdout]     |
[INFO] [stdout] 277 |         frame!("8181f3dba99092", "a", Opcode::Text);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be 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 the missing argument
[INFO] [stdout]     |
[INFO] [stdout] 265 |                 assert!(false, "failed to extract frame from '{:x}'", ...)
[INFO] [stdout]     |                                                                     +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 265 |                 assert!(false, "{}", "failed to extract frame from '{:x}'")
[INFO] [stdout]     |                                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]    --> src/codec.rs:282:9
[INFO] [stdout]     |
[INFO] [stdout] 282 |         frame!("818bb013fc40d876902cdf338b2fc27f98", "hello world", Opcode::Text);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be 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 the missing argument
[INFO] [stdout]     |
[INFO] [stdout] 265 |                 assert!(false, "failed to extract frame from '{:x}'", ...)
[INFO] [stdout]     |                                                                     +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 265 |                 assert!(false, "{}", "failed to extract frame from '{:x}'")
[INFO] [stdout]     |                                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]    --> src/codec.rs:287:9
[INFO] [stdout]     |
[INFO] [stdout] 287 | / ...   frame!(
[INFO] [stdout] 288 | | ...       "81fd16f9d90b5795b52b6291b87f369eb562628dbc7965d9b0783697b67f369eb66772d99f6a7f8bf96265d9bf646395f52b7797bd2b7096ac6736...
[INFO] [stdout] 289 | | ...       "All that glitters is not gold Fair is foul, and foul is fair: Hover through the fog and filthy air.  These violent del...
[INFO] [stdout] 290 | | ...       Opcode::Text
[INFO] [stdout] 291 | | ...   );
[INFO] [stdout]     | |_______^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be 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 the missing argument
[INFO] [stdout]     |
[INFO] [stdout] 265 |                 assert!(false, "failed to extract frame from '{:x}'", ...)
[INFO] [stdout]     |                                                                     +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 265 |                 assert!(false, "{}", "failed to extract frame from '{:x}'")
[INFO] [stdout]     |                                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]    --> src/codec.rs:302:9
[INFO] [stdout]     |
[INFO] [stdout] 302 | /         frame!(
[INFO] [stdout] 303 | |             "81fe020d6742ba33262ed613132adb474725d65a1336df411462d340472cd5474725d55f0348fc520e309a5a1462dc5c122e9613062cde13012d...
[INFO] [stdout] 304 | |             "All that glitters is not gold
[INFO] [stdout] 305 | | Fair is foul, and foul is fair: Hover through the fog and filthy air.
[INFO] [stdout] ...   |
[INFO] [stdout] 314 | |             Opcode::Text
[INFO] [stdout] 315 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this message is not used as a format string when given without arguments, but will be 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 the missing argument
[INFO] [stdout]     |
[INFO] [stdout] 265 |                 assert!(false, "failed to extract frame from '{:x}'", ...)
[INFO] [stdout]     |                                                                     +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]     |
[INFO] [stdout] 265 |                 assert!(false, "{}", "failed to extract frame from '{:x}'")
[INFO] [stdout]     |                                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.23s
[INFO] running `Command { std: "docker" "inspect" "957f8cd69ecc7ae66fb54adbf739aa6475ef17fb04f3c4918441a87146eb9f68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "957f8cd69ecc7ae66fb54adbf739aa6475ef17fb04f3c4918441a87146eb9f68", kill_on_drop: false }`
[INFO] [stdout] 957f8cd69ecc7ae66fb54adbf739aa6475ef17fb04f3c4918441a87146eb9f68
