[INFO] fetching crate rce 0.0.3...
[INFO] building rce-0.0.3 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate rce 0.0.3 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate rce 0.0.3
[INFO] finished tweaking crates.io crate rce 0.0.3
[INFO] tweaked toml for crates.io crate rce 0.0.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rce 0.0.3 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4acc1cbc6369f9d200c621fe43e6aa80ce40ff0fc0ca68a9b8c3242b21538ec
[INFO] running `Command { std: "docker" "start" "-a" "b4acc1cbc6369f9d200c621fe43e6aa80ce40ff0fc0ca68a9b8c3242b21538ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4acc1cbc6369f9d200c621fe43e6aa80ce40ff0fc0ca68a9b8c3242b21538ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4acc1cbc6369f9d200c621fe43e6aa80ce40ff0fc0ca68a9b8c3242b21538ec", kill_on_drop: false }`
[INFO] [stdout] b4acc1cbc6369f9d200c621fe43e6aa80ce40ff0fc0ca68a9b8c3242b21538ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a0a5bce39b1864cb3185a338f60d5b9dcba9e3f0783101ea6073f0da95f991e
[INFO] running `Command { std: "docker" "start" "-a" "4a0a5bce39b1864cb3185a338f60d5b9dcba9e3f0783101ea6073f0da95f991e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rce v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/lib.rs:169:38
[INFO] [stdout]     |
[INFO] [stdout] 169 |         let (invoker, short_invoker, n) = invocation.to_full_and_short();
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/lib.rs:212:38
[INFO] [stdout]     |
[INFO] [stdout] 212 |         let (invoker, short_invoker, n) = invocation.to_full_and_short();
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `n_arguments` is never read
[INFO] [stdout]    --> src/lib.rs:127:5
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub struct CommandInterface {
[INFO] [stdout]     |            ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 127 |     n_arguments: HashMap<u8, ArgumentReference>,
[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 0.97s
[INFO] running `Command { std: "docker" "inspect" "4a0a5bce39b1864cb3185a338f60d5b9dcba9e3f0783101ea6073f0da95f991e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a0a5bce39b1864cb3185a338f60d5b9dcba9e3f0783101ea6073f0da95f991e", kill_on_drop: false }`
[INFO] [stdout] 4a0a5bce39b1864cb3185a338f60d5b9dcba9e3f0783101ea6073f0da95f991e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d13e3cfe1e853c4e667d378c07599758af20535864d398f34cb5504e5809037c
[INFO] running `Command { std: "docker" "start" "-a" "d13e3cfe1e853c4e667d378c07599758af20535864d398f34cb5504e5809037c", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/lib.rs:169:38
[INFO] [stdout]     |
[INFO] [stdout] 169 |         let (invoker, short_invoker, n) = invocation.to_full_and_short();
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/lib.rs:212:38
[INFO] [stdout]     |
[INFO] [stdout] 212 |         let (invoker, short_invoker, n) = invocation.to_full_and_short();
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `n_arguments` is never read
[INFO] [stdout]    --> src/lib.rs:127:5
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub struct CommandInterface {
[INFO] [stdout]     |            ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 127 |     n_arguments: HashMap<u8, ArgumentReference>,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rce v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/lib.rs:169:38
[INFO] [stdout]     |
[INFO] [stdout] 169 |         let (invoker, short_invoker, n) = invocation.to_full_and_short();
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/lib.rs:212:38
[INFO] [stdout]     |
[INFO] [stdout] 212 |         let (invoker, short_invoker, n) = invocation.to_full_and_short();
[INFO] [stdout]     |                                      ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `command2`
[INFO] [stdout]    --> src/lib.rs:493:13
[INFO] [stdout]     |
[INFO] [stdout] 493 |         let command2 = interface.add_command(Invoker::Word("yeah"), vec![arg2], "a command to do other! things");
[INFO] [stdout]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_command2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `flag`
[INFO] [stdout]    --> src/lib.rs:495:13
[INFO] [stdout]     |
[INFO] [stdout] 495 |         let flag = interface.add_flag(Invoker::DashAndDoubleDash("f", "flag"), "enables the flag");
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_flag`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `n_arguments` is never read
[INFO] [stdout]    --> src/lib.rs:127:5
[INFO] [stdout]     |
[INFO] [stdout] 114 | pub struct CommandInterface {
[INFO] [stdout]     |            ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 127 |     n_arguments: HashMap<u8, ArgumentReference>,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.30s
[INFO] running `Command { std: "docker" "inspect" "d13e3cfe1e853c4e667d378c07599758af20535864d398f34cb5504e5809037c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d13e3cfe1e853c4e667d378c07599758af20535864d398f34cb5504e5809037c", kill_on_drop: false }`
[INFO] [stdout] d13e3cfe1e853c4e667d378c07599758af20535864d398f34cb5504e5809037c