[INFO] fetching crate xron 0.3.3...
[INFO] checking xron-0.3.3 against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] extracting crate xron 0.3.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate xron 0.3.3 on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xron 0.3.3
[INFO] finished tweaking crates.io crate xron 0.3.3
[INFO] tweaked toml for crates.io crate xron 0.3.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate xron 0.3.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zip v0.5.3
[INFO] [stderr]   Downloaded encoding_rs v0.8.21
[INFO] [stderr]   Downloaded err-derive v0.1.6
[INFO] [stderr]   Downloaded basic_xlsx_writer v0.1.2
[INFO] [stderr]   Downloaded calamine v0.15.6
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 176cf3c186803a177b4e482bd1b9d9e0e0463648b0f9adc9695b1e14f9b5923e
[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" "176cf3c186803a177b4e482bd1b9d9e0e0463648b0f9adc9695b1e14f9b5923e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "176cf3c186803a177b4e482bd1b9d9e0e0463648b0f9adc9695b1e14f9b5923e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "176cf3c186803a177b4e482bd1b9d9e0e0463648b0f9adc9695b1e14f9b5923e", kill_on_drop: false }`
[INFO] [stdout] 176cf3c186803a177b4e482bd1b9d9e0e0463648b0f9adc9695b1e14f9b5923e
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "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] 942ef3a162d04fc49fb65769ac194c80fbe9eb4e2364b2ed7e0c3bcf0247d559
[INFO] running `Command { std: "docker" "start" "-a" "942ef3a162d04fc49fb65769ac194c80fbe9eb4e2364b2ed7e0c3bcf0247d559", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling encoding_rs v0.8.21
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]     Checking podio v0.1.6
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]    Compiling err-derive v0.1.6
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking msdos_time v0.1.6
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking zip v0.5.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking codepage v0.1.1
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking zip v0.4.2
[INFO] [stderr]     Checking basic_xlsx_writer v0.1.2
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking quick-xml v0.16.1
[INFO] [stderr]     Checking ron v0.4.2
[INFO] [stderr]     Checking calamine v0.15.6
[INFO] [stderr]     Checking xron v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.51s
[INFO] running `Command { std: "docker" "inspect" "942ef3a162d04fc49fb65769ac194c80fbe9eb4e2364b2ed7e0c3bcf0247d559", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "942ef3a162d04fc49fb65769ac194c80fbe9eb4e2364b2ed7e0c3bcf0247d559", kill_on_drop: false }`
[INFO] [stdout] 942ef3a162d04fc49fb65769ac194c80fbe9eb4e2364b2ed7e0c3bcf0247d559