[INFO] fetching crate reboot-arch-btw 0.2.1...
[INFO] checking reboot-arch-btw-0.2.1 against try#99a443d6903f71d521237d8acb5a3016b534d17b for pr-83354
[INFO] extracting crate reboot-arch-btw 0.2.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate reboot-arch-btw 0.2.1 on toolchain 99a443d6903f71d521237d8acb5a3016b534d17b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate reboot-arch-btw 0.2.1
[INFO] finished tweaking crates.io crate reboot-arch-btw 0.2.1
[INFO] tweaked toml for crates.io crate reboot-arch-btw 0.2.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate reboot-arch-btw 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded objc v0.2.7
[INFO] [stderr]   Downloaded malloc_buf v0.0.6
[INFO] [stderr]   Downloaded objc-foundation v0.1.1
[INFO] [stderr]   Downloaded regex v1.3.7
[INFO] [stderr]   Downloaded alpm-sys-fork v1.0.0
[INFO] [stderr]   Downloaded num-traits v0.2.11
[INFO] [stderr]   Downloaded alpm v0.9.0
[INFO] [stderr]   Downloaded cc v1.0.52
[INFO] [stderr]   Downloaded dbus v0.6.5
[INFO] [stderr]   Downloaded regex-syntax v0.6.17
[INFO] [stderr]   Downloaded num-integer v0.1.42
[INFO] [stderr]   Downloaded mac-notification-sys v0.3.0
[INFO] [stderr]   Downloaded syn v1.0.20
[INFO] [stderr]   Downloaded notify-rust v3.6.3
[INFO] [stderr]   Downloaded chrono v0.4.11
[INFO] [stderr]   Downloaded serde v1.0.110
[INFO] [stderr]   Downloaded quote v1.0.4
[INFO] [stderr]   Downloaded serde_derive v1.0.110
[INFO] [stderr]   Downloaded objc_id v0.1.1
[INFO] [stderr]   Downloaded libdbus-sys v0.2.1
[INFO] [stderr]   Downloaded strsim v0.9.3
[INFO] [stderr]   Downloaded docopt v1.1.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ccfaaa308e6f509a4e576c19db7dc20e61015b1ff3a7a8a7bf0850a23a683023
[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" "ccfaaa308e6f509a4e576c19db7dc20e61015b1ff3a7a8a7bf0850a23a683023", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccfaaa308e6f509a4e576c19db7dc20e61015b1ff3a7a8a7bf0850a23a683023", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccfaaa308e6f509a4e576c19db7dc20e61015b1ff3a7a8a7bf0850a23a683023", kill_on_drop: false }`
[INFO] [stdout] ccfaaa308e6f509a4e576c19db7dc20e61015b1ff3a7a8a7bf0850a23a683023
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "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] 1c2078f4498805f74df0c97191fcbb00d1e42d751f6281a7e5352777d106dd5f
[INFO] running `Command { std: "docker" "start" "-a" "1c2078f4498805f74df0c97191fcbb00d1e42d751f6281a7e5352777d106dd5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling syn v1.0.20
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling alpm-sys-fork v1.0.0
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]    Compiling libdbus-sys v0.2.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking dbus v0.6.5
[INFO] [stderr]     Checking alpm v0.9.0
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking notify-rust v3.6.3
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]     Checking docopt v1.1.0
[INFO] [stderr]     Checking reboot-arch-btw v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.01s
[INFO] running `Command { std: "docker" "inspect" "1c2078f4498805f74df0c97191fcbb00d1e42d751f6281a7e5352777d106dd5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c2078f4498805f74df0c97191fcbb00d1e42d751f6281a7e5352777d106dd5f", kill_on_drop: false }`
[INFO] [stdout] 1c2078f4498805f74df0c97191fcbb00d1e42d751f6281a7e5352777d106dd5f