[INFO] fetching crate xflag 0.1.0...
[INFO] checking xflag-0.1.0 against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] extracting crate xflag 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate xflag 0.1.0 on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xflag 0.1.0
[INFO] finished tweaking crates.io crate xflag 0.1.0
[INFO] tweaked toml for crates.io crate xflag 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", 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] d31cf494aba5219cfad80b3b8bdd91d462a81580db39bec74cf9386860f9f873
[INFO] running `Command { std: "docker" "start" "-a" "d31cf494aba5219cfad80b3b8bdd91d462a81580db39bec74cf9386860f9f873", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d31cf494aba5219cfad80b3b8bdd91d462a81580db39bec74cf9386860f9f873", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d31cf494aba5219cfad80b3b8bdd91d462a81580db39bec74cf9386860f9f873", kill_on_drop: false }`
[INFO] [stdout] d31cf494aba5219cfad80b3b8bdd91d462a81580db39bec74cf9386860f9f873
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "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] b0c0ac374cc0d26a12e8f17eea9469212f0558d05afc262e3af07f38ea2e2c2a
[INFO] running `Command { std: "docker" "start" "-a" "b0c0ac374cc0d26a12e8f17eea9469212f0558d05afc262e3af07f38ea2e2c2a", kill_on_drop: false }`
[INFO] [stderr]     Checking xflag v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> xflag.rs:180:9
[INFO] [stdout]     |
[INFO] [stdout] 180 |                 b'0'...b'9' => {}
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> xflag.rs:194:9
[INFO] [stdout]     |
[INFO] [stdout] 194 |                 b'0'...b'9' => i64::from(b - b'0'),
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> xflag.rs:180:9
[INFO] [stdout]     |
[INFO] [stdout] 180 |                 b'0'...b'9' => {}
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> xflag.rs:194:9
[INFO] [stdout]     |
[INFO] [stdout] 194 |                 b'0'...b'9' => i64::from(b - b'0'),
[INFO] [stdout]     |                     ^^^ help: use `..=` for an inclusive range
[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]   --> xflag.rs:25:21
[INFO] [stdout]    |
[INFO] [stdout] 25 |             Overflow => self.description().to_string(),
[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]   --> xflag.rs:26:47
[INFO] [stdout]    |
[INFO] [stdout] 26 |             Unexpected(ch) => format!("{}: {:?}", self.description(), ch),
[INFO] [stdout]    |                                                        ^^^^^^^^^^^
[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]   --> xflag.rs:25:21
[INFO] [stdout]    |
[INFO] [stdout] 25 |             Overflow => self.description().to_string(),
[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]   --> xflag.rs:26:47
[INFO] [stdout]    |
[INFO] [stdout] 26 |             Unexpected(ch) => format!("{}: {:?}", self.description(), ch),
[INFO] [stdout]    |                                                        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "b0c0ac374cc0d26a12e8f17eea9469212f0558d05afc262e3af07f38ea2e2c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0c0ac374cc0d26a12e8f17eea9469212f0558d05afc262e3af07f38ea2e2c2a", kill_on_drop: false }`
[INFO] [stdout] b0c0ac374cc0d26a12e8f17eea9469212f0558d05afc262e3af07f38ea2e2c2a