[INFO] fetching crate xlsx 0.1.0...
[INFO] checking xlsx-0.1.0 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate xlsx 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate xlsx 0.1.0 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xlsx 0.1.0
[INFO] finished tweaking crates.io crate xlsx 0.1.0
[INFO] tweaked toml for crates.io crate xlsx 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded flate2 v0.2.20
[INFO] [stderr]   Downloaded miniz-sys v0.1.12
[INFO] [stderr]   Downloaded zip v0.1.19
[INFO] [stderr]   Downloaded xml_writer v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ceb87bb92c1b097cd7d60a9488e4e9b704cf6bc771b0ff93ff3720e45e48e2f2
[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" "ceb87bb92c1b097cd7d60a9488e4e9b704cf6bc771b0ff93ff3720e45e48e2f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ceb87bb92c1b097cd7d60a9488e4e9b704cf6bc771b0ff93ff3720e45e48e2f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ceb87bb92c1b097cd7d60a9488e4e9b704cf6bc771b0ff93ff3720e45e48e2f2", kill_on_drop: false }`
[INFO] [stdout] ceb87bb92c1b097cd7d60a9488e4e9b704cf6bc771b0ff93ff3720e45e48e2f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f50a43f6dfef259ce22202aec7d217e1e8ee458b56998d126b8279852644ec0
[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" "8f50a43f6dfef259ce22202aec7d217e1e8ee458b56998d126b8279852644ec0", kill_on_drop: false }`
[INFO] [stderr]     Checking xml_writer v0.1.4
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stdout] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xml_writer-0.1.4/src/xml_writer.rs:145:49
[INFO] [stdout]     |
[INFO] [stdout] 145 |                 _    => try!(self.write_slice(c.encode_utf8().as_slice()))
[INFO] [stdout]     |                                                 ^^^^^^^^^^^- supplied 0 arguments
[INFO] [stdout]     |                                                 |
[INFO] [stdout]     |                                                 expected 1 argument
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for mutable reference `&mut str` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/xml_writer-0.1.4/src/xml_writer.rs:145:63
[INFO] [stdout]     |
[INFO] [stdout] 145 |                 _    => try!(self.write_slice(c.encode_utf8().as_slice()))
[INFO] [stdout]     |                                                               ^^^^^^^^ method not found in `&mut str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0061, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `xml_writer`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "8f50a43f6dfef259ce22202aec7d217e1e8ee458b56998d126b8279852644ec0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f50a43f6dfef259ce22202aec7d217e1e8ee458b56998d126b8279852644ec0", kill_on_drop: false }`
[INFO] [stdout] 8f50a43f6dfef259ce22202aec7d217e1e8ee458b56998d126b8279852644ec0