[INFO] cloning repository https://github.com/timglabisch/rust_cli_php_consumer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/timglabisch/rust_cli_php_consumer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimglabisch%2Frust_cli_php_consumer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimglabisch%2Frust_cli_php_consumer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fe26365f81df619d4c05ca020d72e949787ba012
[INFO] checking timglabisch/rust_cli_php_consumer against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimglabisch%2Frust_cli_php_consumer" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/timglabisch/rust_cli_php_consumer on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/timglabisch/rust_cli_php_consumer
[INFO] finished tweaking git repo https://github.com/timglabisch/rust_cli_php_consumer
[INFO] tweaked toml for git repo https://github.com/timglabisch/rust_cli_php_consumer written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/timglabisch/rust_cli_php_consumer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-2/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e73d5b747118f4f46632122c6dea69a90c2e048c070c3d0858e1aa4356c3e4a
[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" "3e73d5b747118f4f46632122c6dea69a90c2e048c070c3d0858e1aa4356c3e4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e73d5b747118f4f46632122c6dea69a90c2e048c070c3d0858e1aa4356c3e4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e73d5b747118f4f46632122c6dea69a90c2e048c070c3d0858e1aa4356c3e4a", kill_on_drop: false }`
[INFO] [stdout] 3e73d5b747118f4f46632122c6dea69a90c2e048c070c3d0858e1aa4356c3e4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d8dc2fc5b27f11cf6701fc12fa8c865f6841b61bea1e639c52f1d8b2141e583
[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" "0d8dc2fc5b27f11cf6701fc12fa8c865f6841b61bea1e639c52f1d8b2141e583", kill_on_drop: false }`
[INFO] [stderr]     Checking php_rust_cli_consumer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `BufWriter`
[INFO] [stdout]  --> src/main.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{BufWriter, Write};
[INFO] [stdout]   |               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]   --> src/main.rs:36:21
[INFO] [stdout]    |
[INFO] [stdout] 36 |                 let output = p.wait_with_output().ok().expect("Failed.");
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufWriter`
[INFO] [stdout]  --> src/main.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{BufWriter, Write};
[INFO] [stdout]   |               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `output`
[INFO] [stdout]   --> src/main.rs:36:21
[INFO] [stdout]    |
[INFO] [stdout] 36 |                 let output = p.wait_with_output().ok().expect("Failed.");
[INFO] [stdout]    |                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:33:21
[INFO] [stdout]    |
[INFO] [stdout] 33 |                     p.stdin.as_mut().unwrap().write_all(&format!("{},{}\n", i, data).as_bytes());
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:33:21
[INFO] [stdout]    |
[INFO] [stdout] 33 |                     p.stdin.as_mut().unwrap().write_all(&format!("{},{}\n", i, data).as_bytes());
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "0d8dc2fc5b27f11cf6701fc12fa8c865f6841b61bea1e639c52f1d8b2141e583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d8dc2fc5b27f11cf6701fc12fa8c865f6841b61bea1e639c52f1d8b2141e583", kill_on_drop: false }`
[INFO] [stdout] 0d8dc2fc5b27f11cf6701fc12fa8c865f6841b61bea1e639c52f1d8b2141e583