[INFO] fetching crate mpd-discord-rpc 1.1.3...
[INFO] checking mpd-discord-rpc-1.1.3 against master#d62d3f7fa9a91d933213cc10e20e740608983f64 for pr-77015
[INFO] extracting crate mpd-discord-rpc 1.1.3 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate mpd-discord-rpc 1.1.3 on toolchain d62d3f7fa9a91d933213cc10e20e740608983f64
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mpd-discord-rpc 1.1.3
[INFO] finished tweaking crates.io crate mpd-discord-rpc 1.1.3
[INFO] tweaked toml for crates.io crate mpd-discord-rpc 1.1.3 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate mpd-discord-rpc 1.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c807bce17b9411be07650ac66dbdef2ff87134a31b0dc61d859f962a80a58a1
[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" "1c807bce17b9411be07650ac66dbdef2ff87134a31b0dc61d859f962a80a58a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c807bce17b9411be07650ac66dbdef2ff87134a31b0dc61d859f962a80a58a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c807bce17b9411be07650ac66dbdef2ff87134a31b0dc61d859f962a80a58a1", kill_on_drop: false }`
[INFO] [stdout] 1c807bce17b9411be07650ac66dbdef2ff87134a31b0dc61d859f962a80a58a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b360f1696b6b0dab5ee808062725e7b745a63ef45debf0a37fbdcc876af6f206
[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" "b360f1696b6b0dab5ee808062725e7b745a63ef45debf0a37fbdcc876af6f206", kill_on_drop: false }`
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking regex-syntax v0.6.16
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking ryu v1.0.2
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking aho-corasick v0.7.9
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking mpd v0.0.12
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking serde_json v1.0.47
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking discord-rpc-client v0.3.0
[INFO] [stderr]     Checking mpd-discord-rpc v1.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.22s
[INFO] running `Command { std: "docker" "inspect" "b360f1696b6b0dab5ee808062725e7b745a63ef45debf0a37fbdcc876af6f206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b360f1696b6b0dab5ee808062725e7b745a63ef45debf0a37fbdcc876af6f206", kill_on_drop: false }`
[INFO] [stdout] b360f1696b6b0dab5ee808062725e7b745a63ef45debf0a37fbdcc876af6f206