[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 try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[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 b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pest v1.0.0-beta.16
[INFO] [stderr]   Downloaded pest_derive v1.0.0-beta.16
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "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] 9c6c0d96b32a39b5ad623a1dba91225baa18b8fab9f4f7101fb193e2c6a7a27a
[INFO] running `Command { std: "docker" "start" "-a" "9c6c0d96b32a39b5ad623a1dba91225baa18b8fab9f4f7101fb193e2c6a7a27a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c6c0d96b32a39b5ad623a1dba91225baa18b8fab9f4f7101fb193e2c6a7a27a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c6c0d96b32a39b5ad623a1dba91225baa18b8fab9f4f7101fb193e2c6a7a27a", kill_on_drop: false }`
[INFO] [stdout] 9c6c0d96b32a39b5ad623a1dba91225baa18b8fab9f4f7101fb193e2c6a7a27a
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "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] b37440e5ebe9a1403e6042f1aeabc10ced53db6f577b0c0961cd4fe30468483d
[INFO] running `Command { std: "docker" "start" "-a" "b37440e5ebe9a1403e6042f1aeabc10ced53db6f577b0c0961cd4fe30468483d", kill_on_drop: false }`
[INFO] [stderr]    Compiling pest v1.0.0-beta.16
[INFO] [stderr]     Checking ansi_term v0.10.2
[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 5.94s
[INFO] running `Command { std: "docker" "inspect" "b37440e5ebe9a1403e6042f1aeabc10ced53db6f577b0c0961cd4fe30468483d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b37440e5ebe9a1403e6042f1aeabc10ced53db6f577b0c0961cd4fe30468483d", kill_on_drop: false }`
[INFO] [stdout] b37440e5ebe9a1403e6042f1aeabc10ced53db6f577b0c0961cd4fe30468483d