[INFO] fetching crate grc 0.9.0-rc.1...
[INFO] checking grc-0.9.0-rc.1 against beta for pr-78714
[INFO] extracting crate grc 0.9.0-rc.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate grc 0.9.0-rc.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate grc 0.9.0-rc.1
[INFO] finished tweaking crates.io crate grc 0.9.0-rc.1
[INFO] tweaked toml for crates.io crate grc 0.9.0-rc.1 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate grc 0.9.0-rc.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] 53b3bcd533058e3a58d869de1d2f56332100203250847329d9e4f0a7bb932ef9
[INFO] running `Command { std: "docker" "start" "-a" "53b3bcd533058e3a58d869de1d2f56332100203250847329d9e4f0a7bb932ef9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53b3bcd533058e3a58d869de1d2f56332100203250847329d9e4f0a7bb932ef9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53b3bcd533058e3a58d869de1d2f56332100203250847329d9e4f0a7bb932ef9", kill_on_drop: false }`
[INFO] [stdout] 53b3bcd533058e3a58d869de1d2f56332100203250847329d9e4f0a7bb932ef9
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5eaebbc434f6ef11225d5e8994f7a1ccc9c5bf11e17a9677aedb84d9c553ee89
[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" "5eaebbc434f6ef11225d5e8994f7a1ccc9c5bf11e17a9677aedb84d9c553ee89", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]     Checking console v0.13.0
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking dialoguer v0.7.1
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling libssh2-sys v0.2.19
[INFO] [stderr]    Compiling libgit2-sys v0.12.14+1.1.0
[INFO] [stderr]     Checking git2 v0.13.12
[INFO] [stderr]     Checking grc v0.9.0-rc.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `push_arg`
[INFO] [stdout]   --> src/arguments.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn push_arg(params_name: &str) -> Arg {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from`
[INFO] [stdout]   --> src/extensions.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn from(filename: &str) -> Result<Self, Error> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PUSH_COMMAND`
[INFO] [stdout]   --> src/metadata.rs:40:1
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub const PUSH_COMMAND: &str = "push";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PUSH_COMMAND_SHORT`
[INFO] [stdout]   --> src/metadata.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub const PUSH_COMMAND_SHORT: &str = "p";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PUSH_COMMAND_HELP`
[INFO] [stdout]   --> src/metadata.rs:44:1
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub const PUSH_COMMAND_HELP: &str = "...";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push_arg`
[INFO] [stdout]   --> src/arguments.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn push_arg(params_name: &str) -> Arg {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PUSH_COMMAND`
[INFO] [stdout]   --> src/metadata.rs:40:1
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub const PUSH_COMMAND: &str = "push";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PUSH_COMMAND_SHORT`
[INFO] [stdout]   --> src/metadata.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub const PUSH_COMMAND_SHORT: &str = "p";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PUSH_COMMAND_HELP`
[INFO] [stdout]   --> src/metadata.rs:44:1
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub const PUSH_COMMAND_HELP: &str = "...";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.99s
[INFO] running `Command { std: "docker" "inspect" "5eaebbc434f6ef11225d5e8994f7a1ccc9c5bf11e17a9677aedb84d9c553ee89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5eaebbc434f6ef11225d5e8994f7a1ccc9c5bf11e17a9677aedb84d9c553ee89", kill_on_drop: false }`
[INFO] [stdout] 5eaebbc434f6ef11225d5e8994f7a1ccc9c5bf11e17a9677aedb84d9c553ee89