[INFO] fetching crate httptest 0.15.1...
[INFO] checking httptest-0.15.1 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate httptest 0.15.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate httptest 0.15.1 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate httptest 0.15.1
[INFO] finished tweaking crates.io crate httptest 0.15.1
[INFO] tweaked toml for crates.io crate httptest 0.15.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00eb0096a5a80336b98cc9e3c8932a2ea540d7a575e5e4123312aea63250532e
[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" "00eb0096a5a80336b98cc9e3c8932a2ea540d7a575e5e4123312aea63250532e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00eb0096a5a80336b98cc9e3c8932a2ea540d7a575e5e4123312aea63250532e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00eb0096a5a80336b98cc9e3c8932a2ea540d7a575e5e4123312aea63250532e", kill_on_drop: false }`
[INFO] [stdout] 00eb0096a5a80336b98cc9e3c8932a2ea540d7a575e5e4123312aea63250532e
[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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a3077d59617ac40a2887d403cbe8579f3930d33026e0b59504ceda0a8c9fe643
[INFO] running `Command { std: "docker" "start" "-a" "a3077d59617ac40a2887d403cbe8579f3930d33026e0b59504ceda0a8c9fe643", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking futures-sink v0.3.12
[INFO] [stderr]     Checking futures-core v0.3.12
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.12
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]     Checking futures-task v0.3.12
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]     Checking futures-channel v0.3.12
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]     Checking http v0.2.3
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking tracing v0.1.23
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.7
[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 pretty_env_logger v0.4.0
[INFO] [stderr]     Checking http-body v0.4.0
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling pin-project-internal v1.0.5
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]     Checking pin-project v1.0.5
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking tokio-util v0.6.3
[INFO] [stderr]     Checking futures v0.3.12
[INFO] [stderr]     Checking h2 v0.3.0
[INFO] [stderr]     Checking serde v1.0.123
[INFO] [stderr]     Checking hyper v0.14.4
[INFO] [stderr]     Checking serde_json v1.0.62
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking httptest v0.15.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/server.rs:130:24
[INFO] [stdout]     |
[INFO] [stdout] 130 |                   panic!(format!(
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 131 | |                     "Unexpected number of requests for matcher '{:?}'; received {}; expected {}",
[INFO] [stdout] 132 | |                     matcher_name(&*expectation.matcher),
[INFO] [stdout] 133 | |                     expectation.hit_count,
[INFO] [stdout] 134 | |                     RangeDisplay(expectation.times),
[INFO] [stdout] 135 | |                 ));
[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: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[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:130:24
[INFO] [stdout]     |
[INFO] [stdout] 130 |                   panic!(format!(
[INFO] [stdout]     |  ________________________^
[INFO] [stdout] 131 | |                     "Unexpected number of requests for matcher '{:?}'; received {}; expected {}",
[INFO] [stdout] 132 | |                     matcher_name(&*expectation.matcher),
[INFO] [stdout] 133 | |                     expectation.hit_count,
[INFO] [stdout] 134 | |                     RangeDisplay(expectation.times),
[INFO] [stdout] 135 | |                 ));
[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: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.97s
[INFO] running `Command { std: "docker" "inspect" "a3077d59617ac40a2887d403cbe8579f3930d33026e0b59504ceda0a8c9fe643", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3077d59617ac40a2887d403cbe8579f3930d33026e0b59504ceda0a8c9fe643", kill_on_drop: false }`
[INFO] [stdout] a3077d59617ac40a2887d403cbe8579f3930d33026e0b59504ceda0a8c9fe643