[INFO] cloning repository https://github.com/sandkoan/postfix
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sandkoan/postfix" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsandkoan%2Fpostfix", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsandkoan%2Fpostfix'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 117e2ac70527578cfdfc0bdc9aa1f57126c64428
[INFO] checking sandkoan/postfix against master#f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 for pr-83312
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsandkoan%2Fpostfix" "/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/sandkoan/postfix on toolchain f5f33ec0e0455eefa72fc5567eb1280a4d5ee206
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sandkoan/postfix
[INFO] finished tweaking git repo https://github.com/sandkoan/postfix
[INFO] tweaked toml for git repo https://github.com/sandkoan/postfix written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/sandkoan/postfix already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "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-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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 921e39d46326e865fcc1f6e6b00e322cac7b74d9cf78f9b5eb79da3f2c43f07b
[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" "921e39d46326e865fcc1f6e6b00e322cac7b74d9cf78f9b5eb79da3f2c43f07b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "921e39d46326e865fcc1f6e6b00e322cac7b74d9cf78f9b5eb79da3f2c43f07b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "921e39d46326e865fcc1f6e6b00e322cac7b74d9cf78f9b5eb79da3f2c43f07b", kill_on_drop: false }`
[INFO] [stdout] 921e39d46326e865fcc1f6e6b00e322cac7b74d9cf78f9b5eb79da3f2c43f07b
[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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba3d71ad181b70009f0381303a368991c2e4365c68fff24f13ceccefd9544183
[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" "ba3d71ad181b70009f0381303a368991c2e4365c68fff24f13ceccefd9544183", kill_on_drop: false }`
[INFO] [stderr]     Checking forth v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `data_stack`
[INFO] [stdout]    --> src/functions.rs:171:18
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub fn fnew_word(data_stack: &mut VecDeque<i32>, index: &usize, code: &[&str]) {
[INFO] [stdout]     |                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_stack`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/functions.rs:171:50
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub fn fnew_word(data_stack: &mut VecDeque<i32>, index: &usize, code: &[&str]) {
[INFO] [stdout]     |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]    --> src/functions.rs:171:65
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub fn fnew_word(data_stack: &mut VecDeque<i32>, index: &usize, code: &[&str]) {
[INFO] [stdout]     |                                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     io::stdout().flush();
[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: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         io::stdout().flush();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:199:5
[INFO] [stdout]     |
[INFO] [stdout] 199 |     io::stdout().flush();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data_stack`
[INFO] [stdout]    --> src/functions.rs:171:18
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub fn fnew_word(data_stack: &mut VecDeque<i32>, index: &usize, code: &[&str]) {
[INFO] [stdout]     |                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_data_stack`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/functions.rs:171:50
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub fn fnew_word(data_stack: &mut VecDeque<i32>, index: &usize, code: &[&str]) {
[INFO] [stdout]     |                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]    --> src/functions.rs:171:65
[INFO] [stdout]     |
[INFO] [stdout] 171 | pub fn fnew_word(data_stack: &mut VecDeque<i32>, index: &usize, code: &[&str]) {
[INFO] [stdout]     |                                                                 ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     io::stdout().flush();
[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: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |         io::stdout().flush();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:199:5
[INFO] [stdout]     |
[INFO] [stdout] 199 |     io::stdout().flush();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "ba3d71ad181b70009f0381303a368991c2e4365c68fff24f13ceccefd9544183", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba3d71ad181b70009f0381303a368991c2e4365c68fff24f13ceccefd9544183", kill_on_drop: false }`
[INFO] [stdout] ba3d71ad181b70009f0381303a368991c2e4365c68fff24f13ceccefd9544183