[INFO] cloning repository https://github.com/0918nobita/forth-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0918nobita/forth-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0918nobita%2Fforth-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0918nobita%2Fforth-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 102c9faa5f6f3c825bfa3c5cf960458d8be853e7
[INFO] checking 0918nobita/forth-rs against master#c8551d3c63c51f290cf1dc9dc4714249ea849fd1 for pr-148946
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0918nobita%2Fforth-rs" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/0918nobita/forth-rs
[INFO] finished tweaking git repo https://github.com/0918nobita/forth-rs
[INFO] tweaked toml for git repo https://github.com/0918nobita/forth-rs written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/0918nobita/forth-rs on toolchain c8551d3c63c51f290cf1dc9dc4714249ea849fd1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c8551d3c63c51f290cf1dc9dc4714249ea849fd1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/0918nobita/forth-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c8551d3c63c51f290cf1dc9dc4714249ea849fd1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c8551d3c63c51f290cf1dc9dc4714249ea849fd1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5d6f5eacd3fb6b186a5197cb42e228b350e6d642f831aecff8ecf8ab664254a
[INFO] running `Command { std: "docker" "start" "-a" "b5d6f5eacd3fb6b186a5197cb42e228b350e6d642f831aecff8ecf8ab664254a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5d6f5eacd3fb6b186a5197cb42e228b350e6d642f831aecff8ecf8ab664254a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5d6f5eacd3fb6b186a5197cb42e228b350e6d642f831aecff8ecf8ab664254a", kill_on_drop: false }`
[INFO] [stdout] b5d6f5eacd3fb6b186a5197cb42e228b350e6d642f831aecff8ecf8ab664254a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c8551d3c63c51f290cf1dc9dc4714249ea849fd1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cd809515c1df7c6227f995c16bca520e1dd4cb93353557cdd2ebf602d190065
[INFO] running `Command { std: "docker" "start" "-a" "7cd809515c1df7c6227f995c16bca520e1dd4cb93353557cdd2ebf602d190065", kill_on_drop: false }`
[INFO] [stderr]     Checking forth-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `mem` is never read
[INFO] [stdout]   --> src/context.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct Context<'a> {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub mem: &'a mut Vec<u8>,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `mem` is never read
[INFO] [stdout]   --> src/context.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct Context<'a> {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 10 |     pub mem: &'a mut Vec<u8>,
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "7cd809515c1df7c6227f995c16bca520e1dd4cb93353557cdd2ebf602d190065", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cd809515c1df7c6227f995c16bca520e1dd4cb93353557cdd2ebf602d190065", kill_on_drop: false }`
[INFO] [stdout] 7cd809515c1df7c6227f995c16bca520e1dd4cb93353557cdd2ebf602d190065
