[INFO] fetching crate httptest 0.15.1...
[INFO] checking httptest-0.15.1 against master#f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 for pr-83312
[INFO] extracting crate httptest 0.15.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate httptest 0.15.1 on toolchain f5f33ec0e0455eefa72fc5567eb1280a4d5ee206
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "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-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "fetch" "--locked" "--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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 58c16139e2d19aa515dc2f3369882c34fa8bce49552538c35a4c970dd530b503
[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" "58c16139e2d19aa515dc2f3369882c34fa8bce49552538c35a4c970dd530b503", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58c16139e2d19aa515dc2f3369882c34fa8bce49552538c35a4c970dd530b503", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58c16139e2d19aa515dc2f3369882c34fa8bce49552538c35a4c970dd530b503", kill_on_drop: false }`
[INFO] [stdout] 58c16139e2d19aa515dc2f3369882c34fa8bce49552538c35a4c970dd530b503
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c333a0fac916593e261387cae14d0e25be90aa05c06589997bf7499025ff2eff
[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" "c333a0fac916593e261387cae14d0e25be90aa05c06589997bf7499025ff2eff", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling tokio v1.4.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling syn v1.0.64
[INFO] [stderr]     Checking http v0.2.3
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking http-body v0.4.1
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling pin-project-internal v1.0.5
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking pin-project v1.0.5
[INFO] [stderr]     Checking futures v0.3.13
[INFO] [stderr]     Checking tokio-util v0.6.5
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking h2 v0.3.1
[INFO] [stderr]     Checking hyper v0.14.4
[INFO] [stderr]     Checking serde_json v1.0.64
[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: 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] 130 |                 panic!(
[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] 
[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: 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] 130 |                 panic!(
[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] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.32s
[INFO] running `Command { std: "docker" "inspect" "c333a0fac916593e261387cae14d0e25be90aa05c06589997bf7499025ff2eff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c333a0fac916593e261387cae14d0e25be90aa05c06589997bf7499025ff2eff", kill_on_drop: false }`
[INFO] [stdout] c333a0fac916593e261387cae14d0e25be90aa05c06589997bf7499025ff2eff