[INFO] fetching crate httptest 0.13.3...
[INFO] checking httptest-0.13.3 against try#8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346 for pr-86194
[INFO] extracting crate httptest 0.13.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate httptest 0.13.3 on toolchain 8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate httptest 0.13.3
[INFO] finished tweaking crates.io crate httptest 0.13.3
[INFO] tweaked toml for crates.io crate httptest 0.13.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a95d3a1fc7462432a05c6ee5813e37a372803f2d28d05f1e098c136cc3b80128
[INFO] running `Command { std: "docker" "start" "-a" "a95d3a1fc7462432a05c6ee5813e37a372803f2d28d05f1e098c136cc3b80128", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a95d3a1fc7462432a05c6ee5813e37a372803f2d28d05f1e098c136cc3b80128", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a95d3a1fc7462432a05c6ee5813e37a372803f2d28d05f1e098c136cc3b80128", kill_on_drop: false }`
[INFO] [stdout] a95d3a1fc7462432a05c6ee5813e37a372803f2d28d05f1e098c136cc3b80128
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+8552849d5ae3b6c66b89a0ac2e9c1e3ef5cde346" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c16713a6475174304238c3d2d18744b4f1aa2afb8197f24000188192b0bf8a06
[INFO] running `Command { std: "docker" "start" "-a" "c16713a6475174304238c3d2d18744b4f1aa2afb8197f24000188192b0bf8a06", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking hyper v0.13.10
[INFO] [stderr]     Checking httptest v0.13.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/server.rs:131:24
[INFO] [stdout]     |
[INFO] [stdout] 131 |                   panic!(format!(
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 132 | |                     "Unexpected number of requests for matcher '{:?}'; received {}; expected {}",
[INFO] [stdout] 133 | |                     matcher_name(&*expectation.matcher),
[INFO] [stdout] 134 | |                     expectation.hit_count,
[INFO] [stdout] 135 | |                     RangeDisplay(expectation.times),
[INFO] [stdout] 136 | |                 ));
[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]     = 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] 131 |                 panic!(
[INFO] [stdout] 132 |                     "Unexpected number of requests for matcher '{:?}'; received {}; expected {}",
[INFO] [stdout] 133 |                     matcher_name(&*expectation.matcher),
[INFO] [stdout] 134 |                     expectation.hit_count,
[INFO] [stdout] 135 |                     RangeDisplay(expectation.times),
[INFO] [stdout] 136 |                 );
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/server.rs:131:24
[INFO] [stdout]     |
[INFO] [stdout] 131 |                   panic!(format!(
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 132 | |                     "Unexpected number of requests for matcher '{:?}'; received {}; expected {}",
[INFO] [stdout] 133 | |                     matcher_name(&*expectation.matcher),
[INFO] [stdout] 134 | |                     expectation.hit_count,
[INFO] [stdout] 135 | |                     RangeDisplay(expectation.times),
[INFO] [stdout] 136 | |                 ));
[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]     = 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] 131 |                 panic!(
[INFO] [stdout] 132 |                     "Unexpected number of requests for matcher '{:?}'; received {}; expected {}",
[INFO] [stdout] 133 |                     matcher_name(&*expectation.matcher),
[INFO] [stdout] 134 |                     expectation.hit_count,
[INFO] [stdout] 135 |                     RangeDisplay(expectation.times),
[INFO] [stdout] 136 |                 );
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.58s
[INFO] running `Command { std: "docker" "inspect" "c16713a6475174304238c3d2d18744b4f1aa2afb8197f24000188192b0bf8a06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c16713a6475174304238c3d2d18744b4f1aa2afb8197f24000188192b0bf8a06", kill_on_drop: false }`
[INFO] [stdout] c16713a6475174304238c3d2d18744b4f1aa2afb8197f24000188192b0bf8a06