[INFO] fetching crate grc 0.9.1...
[INFO] checking grc-0.9.1 against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] extracting crate grc 0.9.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate grc 0.9.1 on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate grc 0.9.1
[INFO] finished tweaking crates.io crate grc 0.9.1
[INFO] tweaked toml for crates.io crate grc 0.9.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate grc 0.9.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "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 dialoguer v0.7.1
[INFO] [stderr]   Downloaded terminal_size v0.1.13
[INFO] [stderr]   Downloaded libssh2-sys v0.2.19
[INFO] [stderr]   Downloaded libgit2-sys v0.12.14+1.1.0
[INFO] [stderr]   Downloaded git2 v0.13.12
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37254a324ad189dba4068ac45bf5297e9a6a4064095e7e6de07512f4b64b6571
[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" "37254a324ad189dba4068ac45bf5297e9a6a4064095e7e6de07512f4b64b6571", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37254a324ad189dba4068ac45bf5297e9a6a4064095e7e6de07512f4b64b6571", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37254a324ad189dba4068ac45bf5297e9a6a4064095e7e6de07512f4b64b6571", kill_on_drop: false }`
[INFO] [stdout] 37254a324ad189dba4068ac45bf5297e9a6a4064095e7e6de07512f4b64b6571
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "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] 0bc78dd7a811f53e8b69704062e25e623c0394729e4beca844a2d85273efd3c6
[INFO] running `Command { std: "docker" "start" "-a" "0bc78dd7a811f53e8b69704062e25e623c0394729e4beca844a2d85273efd3c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking zeroize v0.9.3
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking terminal_size v0.1.13
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[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 console v0.13.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking dialoguer v0.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking git2 v0.13.12
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking grc v0.9.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> src/util.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use git2::{Error, Signature, Status, Statuses};
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]  --> src/util.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use git2::{Error, Signature, Status, Statuses};
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[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:45:1
[INFO] [stdout]    |
[INFO] [stdout] 45 | 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:47:1
[INFO] [stdout]    |
[INFO] [stdout] 47 | 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:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | pub const PUSH_COMMAND_HELP: &str = "...";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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:45:1
[INFO] [stdout]    |
[INFO] [stdout] 45 | 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:47:1
[INFO] [stdout]    |
[INFO] [stdout] 47 | 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:49:1
[INFO] [stdout]    |
[INFO] [stdout] 49 | 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: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 31s
[INFO] running `Command { std: "docker" "inspect" "0bc78dd7a811f53e8b69704062e25e623c0394729e4beca844a2d85273efd3c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bc78dd7a811f53e8b69704062e25e623c0394729e4beca844a2d85273efd3c6", kill_on_drop: false }`
[INFO] [stdout] 0bc78dd7a811f53e8b69704062e25e623c0394729e4beca844a2d85273efd3c6