[INFO] cloning repository https://github.com/c2hub/c2parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/c2hub/c2parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc2hub%2Fc2parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc2hub%2Fc2parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1d03d8fddac56fb71d27a463e08fc8c2b9a95a00
[INFO] checking c2hub/c2parser against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc2hub%2Fc2parser" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/c2hub/c2parser 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 git repo https://github.com/c2hub/c2parser
[INFO] finished tweaking git repo https://github.com/c2hub/c2parser
[INFO] tweaked toml for git repo https://github.com/c2hub/c2parser written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/c2hub/c2parser 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-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9fe23e3452b425b437cc35f404766b1968c22445f7537d6d24cf734f0f5103ff
[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" "9fe23e3452b425b437cc35f404766b1968c22445f7537d6d24cf734f0f5103ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9fe23e3452b425b437cc35f404766b1968c22445f7537d6d24cf734f0f5103ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fe23e3452b425b437cc35f404766b1968c22445f7537d6d24cf734f0f5103ff", kill_on_drop: false }`
[INFO] [stdout] 9fe23e3452b425b437cc35f404766b1968c22445f7537d6d24cf734f0f5103ff
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4232d5dd7b169d7ca0f0933306290abcf6b62f4aed19c6c8f2e17f80502ae748
[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" "4232d5dd7b169d7ca0f0933306290abcf6b62f4aed19c6c8f2e17f80502ae748", kill_on_drop: false }`
[INFO] [stderr]    Compiling pest v1.0.0-beta.16
[INFO] [stderr]    Compiling syn v0.10.8
[INFO] [stderr]    Compiling pest_derive v1.0.0-beta.16
[INFO] [stderr]     Checking c2parser 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/ast_builder/mod.rs:56:54
[INFO] [stdout]    |
[INFO] [stdout] 56 |             BuilderError::InvalidPair => write!(f, "{}", self.description()),
[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/ast_builder/mod.rs:56:54
[INFO] [stdout]    |
[INFO] [stdout] 56 |             BuilderError::InvalidPair => write!(f, "{}", self.description()),
[INFO] [stdout]    |                                                               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.00s
[INFO] running `Command { std: "docker" "inspect" "4232d5dd7b169d7ca0f0933306290abcf6b62f4aed19c6c8f2e17f80502ae748", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4232d5dd7b169d7ca0f0933306290abcf6b62f4aed19c6c8f2e17f80502ae748", kill_on_drop: false }`
[INFO] [stdout] 4232d5dd7b169d7ca0f0933306290abcf6b62f4aed19c6c8f2e17f80502ae748