[INFO] fetching crate echoloc 0.1.10...
[INFO] testing echoloc-0.1.10 against 1.49.0 for beta-1.50-1
[INFO] extracting crate echoloc 0.1.10 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate echoloc 0.1.10 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate echoloc 0.1.10
[INFO] finished tweaking crates.io crate echoloc 0.1.10
[INFO] tweaked toml for crates.io crate echoloc 0.1.10 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57eec287e3164b52af4c3987e07cfa015e54ed733bc1232cbcbd56cd42e53fe7
[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" "57eec287e3164b52af4c3987e07cfa015e54ed733bc1232cbcbd56cd42e53fe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57eec287e3164b52af4c3987e07cfa015e54ed733bc1232cbcbd56cd42e53fe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57eec287e3164b52af4c3987e07cfa015e54ed733bc1232cbcbd56cd42e53fe7", kill_on_drop: false }`
[INFO] [stdout] 57eec287e3164b52af4c3987e07cfa015e54ed733bc1232cbcbd56cd42e53fe7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--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] bc1c66bf2b2a89dbc2825f60b982f9129806ca4667a23b7f78523a4930f8bcca
[INFO] running `Command { std: "docker" "start" "-a" "bc1c66bf2b2a89dbc2825f60b982f9129806ca4667a23b7f78523a4930f8bcca", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling pin-project-lite v0.1.11
[INFO] [stderr]    Compiling openssl v0.10.32
[INFO] [stderr]    Compiling futures-sink v0.3.8
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling tower-service v0.3.0
[INFO] [stderr]    Compiling httpdate v0.3.2
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling ipnet v2.3.0
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling form_urlencoded v1.0.0
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling http v0.2.2
[INFO] [stderr]    Compiling tracing v0.1.22
[INFO] [stderr]    Compiling slog-try v0.2.0
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling openssl-sys v0.9.60
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling url v2.2.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tokio v0.2.24
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-tls v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling getset v0.1.1
[INFO] [stderr]    Compiling pin-project v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling pin-project v0.4.27
[INFO] [stderr]    Compiling tracing-futures v0.2.4
[INFO] [stderr]    Compiling h2 v0.2.7
[INFO] [stderr]    Compiling serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling hyper v0.13.9
[INFO] [stderr]    Compiling hyper-tls v0.4.3
[INFO] [stderr]    Compiling reqwest v0.10.10
[INFO] [stderr]    Compiling echoloc v0.1.10 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown lint: `question_mark_macro_sep`
[INFO] [stdout]   --> src/lib.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     question_mark_macro_sep,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![feature(crate_visibility_modifier)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `danger_accept_invalid_hostnames` found for struct `ClientBuilder` in the current scope
[INFO] [stdout]   --> src/echo.rs:86:14
[INFO] [stdout]    |
[INFO] [stdout] 86 |             .danger_accept_invalid_hostnames(true)
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: there is an associated function with a similar name: `danger_accept_invalid_certs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/error.rs:40:30
[INFO] [stdout]    |
[INFO] [stdout] 40 |         write!(f, "{}", self.description())?;
[INFO] [stdout]    |                              ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/error.rs:106:41
[INFO] [stdout]     |
[INFO] [stdout] 106 |             ErrKind::Io(inner) => inner.description(),
[INFO] [stdout]     |                                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `echoloc`
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/error.rs:108:42
[INFO] [stdout]     |
[INFO] [stdout] 108 |             ErrKind::Var(inner) => inner.description(),
[INFO] [stdout]     |                                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/error.rs:109:43
[INFO] [stdout]     |
[INFO] [stdout] 109 |             ErrKind::Json(inner) => inner.description(),
[INFO] [stdout]     |                                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/error.rs:110:46
[INFO] [stdout]     |
[INFO] [stdout] 110 |             ErrKind::Reqwest(inner) => inner.description(),
[INFO] [stdout]     |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/error.rs:132:30
[INFO] [stdout]     |
[INFO] [stdout] 132 |         write!(f, "{}", self.description())?;
[INFO] [stdout]     |                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "bc1c66bf2b2a89dbc2825f60b982f9129806ca4667a23b7f78523a4930f8bcca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc1c66bf2b2a89dbc2825f60b982f9129806ca4667a23b7f78523a4930f8bcca", kill_on_drop: false }`
[INFO] [stdout] bc1c66bf2b2a89dbc2825f60b982f9129806ca4667a23b7f78523a4930f8bcca