[INFO] cloning repository https://github.com/mitchhentges/lcov-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mitchhentges/lcov-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitchhentges%2Flcov-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitchhentges%2Flcov-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 91156db347a6c35ecfb789db8672f1d0baae9df2
[INFO] checking mitchhentges/lcov-rs against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitchhentges%2Flcov-rs" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mitchhentges/lcov-rs on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mitchhentges/lcov-rs
[INFO] finished tweaking git repo https://github.com/mitchhentges/lcov-rs
[INFO] tweaked toml for git repo https://github.com/mitchhentges/lcov-rs written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/mitchhentges/lcov-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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] 4c4de1eb527b52a9fec26a38a9a7b331e051dd0b8ca31bcb88e408e2690124da
[INFO] running `Command { std: "docker" "start" "-a" "4c4de1eb527b52a9fec26a38a9a7b331e051dd0b8ca31bcb88e408e2690124da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c4de1eb527b52a9fec26a38a9a7b331e051dd0b8ca31bcb88e408e2690124da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c4de1eb527b52a9fec26a38a9a7b331e051dd0b8ca31bcb88e408e2690124da", kill_on_drop: false }`
[INFO] [stdout] 4c4de1eb527b52a9fec26a38a9a7b331e051dd0b8ca31bcb88e408e2690124da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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] 447dbe2c1a0eed6adda85d4d96a42323f291ad7216f65890e2c112a2d62d227e
[INFO] running `Command { std: "docker" "start" "-a" "447dbe2c1a0eed6adda85d4d96a42323f291ad7216f65890e2c112a2d62d227e", kill_on_drop: false }`
[INFO] [stderr]     Checking either v1.1.0
[INFO] [stderr]     Checking byteorder v1.0.0
[INFO] [stderr]     Checking itertools v0.5.10
[INFO] [stderr]     Checking lcov-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:43:79
[INFO] [stdout]    |
[INFO] [stdout] 43 |             writeln!(std::io::stderr(), "Failed to open {}:{}", &gcno_path, e.description()).unwrap();
[INFO] [stdout]    |                                                                               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/main.rs:152:79
[INFO] [stdout]     |
[INFO] [stdout] 152 |             writeln!(std::io::stderr(), "Failed to open {}:{}", &gcda_path, e.description()).unwrap();
[INFO] [stdout]     |                                                                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tmp_output_path`
[INFO] [stdout]    --> src/main.rs:148:31
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn read_gcda(gcda_path: &str, tmp_output_path: &str) {
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tmp_output_path`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ARC_ON_TREE`
[INFO] [stdout]   --> src/main.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | const ARC_ON_TREE: u32 = 1 << 0;
[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: `is_on_tree`
[INFO] [stdout]    --> src/main.rs:412:8
[INFO] [stdout]     |
[INFO] [stdout] 412 |     fn is_on_tree(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/main.rs:43:79
[INFO] [stdout]    |
[INFO] [stdout] 43 |             writeln!(std::io::stderr(), "Failed to open {}:{}", &gcno_path, e.description()).unwrap();
[INFO] [stdout]    |                                                                               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/main.rs:152:79
[INFO] [stdout]     |
[INFO] [stdout] 152 |             writeln!(std::io::stderr(), "Failed to open {}:{}", &gcda_path, e.description()).unwrap();
[INFO] [stdout]     |                                                                               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tmp_output_path`
[INFO] [stdout]    --> src/main.rs:148:31
[INFO] [stdout]     |
[INFO] [stdout] 148 | fn read_gcda(gcda_path: &str, tmp_output_path: &str) {
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tmp_output_path`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `ARC_ON_TREE`
[INFO] [stdout]   --> src/main.rs:23:1
[INFO] [stdout]    |
[INFO] [stdout] 23 | const ARC_ON_TREE: u32 = 1 << 0;
[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: `is_on_tree`
[INFO] [stdout]    --> src/main.rs:412:8
[INFO] [stdout]     |
[INFO] [stdout] 412 |     fn is_on_tree(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.54s
[INFO] running `Command { std: "docker" "inspect" "447dbe2c1a0eed6adda85d4d96a42323f291ad7216f65890e2c112a2d62d227e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "447dbe2c1a0eed6adda85d4d96a42323f291ad7216f65890e2c112a2d62d227e", kill_on_drop: false }`
[INFO] [stdout] 447dbe2c1a0eed6adda85d4d96a42323f291ad7216f65890e2c112a2d62d227e