[INFO] fetching crate sfn-ng 0.2.25...
[INFO] checking sfn-ng-0.2.25 against try#024378d9203a4009ed73d6db2681b88a8d74ce7a for pr-112160
[INFO] extracting crate sfn-ng 0.2.25 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate sfn-ng 0.2.25 on toolchain 024378d9203a4009ed73d6db2681b88a8d74ce7a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sfn-ng 0.2.25
[INFO] finished tweaking crates.io crate sfn-ng 0.2.25
[INFO] tweaked toml for crates.io crate sfn-ng 0.2.25 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate sfn-ng 0.2.25 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" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "fetch" "--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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ddcbd67f0dff692e1039cec992191d542bc9ee928c0a16e8c57bb57ee61fdd06
[INFO] running `Command { std: "docker" "start" "-a" "ddcbd67f0dff692e1039cec992191d542bc9ee928c0a16e8c57bb57ee61fdd06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ddcbd67f0dff692e1039cec992191d542bc9ee928c0a16e8c57bb57ee61fdd06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddcbd67f0dff692e1039cec992191d542bc9ee928c0a16e8c57bb57ee61fdd06", kill_on_drop: false }`
[INFO] [stdout] ddcbd67f0dff692e1039cec992191d542bc9ee928c0a16e8c57bb57ee61fdd06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+024378d9203a4009ed73d6db2681b88a8d74ce7a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db4a3225b7ed76afd928fb4f60cd4adb8add6ec0f7696774864b139f123c5a5c
[INFO] running `Command { std: "docker" "start" "-a" "db4a3225b7ed76afd928fb4f60cd4adb8add6ec0f7696774864b139f123c5a5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
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[INFO] [stderr]    Compiling futures-core v0.3.25
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[INFO] [stderr]     Checking sfn-ng v0.2.25 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `template_body` is never read
[INFO] [stdout]    --> src/main.rs:772:3
[INFO] [stdout]     |
[INFO] [stdout] 767 | struct StackInput {
[INFO] [stdout]     |        ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 772 |   template_body: Option<String>,
[INFO] [stdout]     |   ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StackInput` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&std::string::String` instead of cloning the inner type
[INFO] [stdout]    --> src/main.rs:487:178
[INFO] [stdout]     |
[INFO] [stdout] 487 | ...())).into_group_map().iter().sorted_by_key(|(status, _)| status.clone()) {
[INFO] [stdout]     |                                                                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]     --> src/main.rs:1668:47
[INFO] [stdout]      |
[INFO] [stdout] 1668 |     print!("Do you want to execute {}?: ", msg.clone());
[INFO] [stdout]      |                                               ^^^^^^^^ unnecessary method call
[INFO] [stdout]      |
[INFO] [stdout]      = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]      = note: `#[deny(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `template_body` is never read
[INFO] [stdout]    --> src/main.rs:772:3
[INFO] [stdout]     |
[INFO] [stdout] 767 | struct StackInput {
[INFO] [stdout]     |        ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 772 |   template_body: Option<String>,
[INFO] [stdout]     |   ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `StackInput` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&std::string::String` instead of cloning the inner type
[INFO] [stdout]    --> src/main.rs:487:178
[INFO] [stdout]     |
[INFO] [stdout] 487 | ...())).into_group_map().iter().sorted_by_key(|(status, _)| status.clone()) {
[INFO] [stdout]     |                                                                   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]     --> src/main.rs:1668:47
[INFO] [stdout]      |
[INFO] [stdout] 1668 |     print!("Do you want to execute {}?: ", msg.clone());
[INFO] [stdout]      |                                               ^^^^^^^^ unnecessary method call
[INFO] [stdout]      |
[INFO] [stdout]      = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]      = note: `#[deny(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sfn-ng` (bin "sfn-ng" test) due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sfn-ng` (bin "sfn-ng") due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "db4a3225b7ed76afd928fb4f60cd4adb8add6ec0f7696774864b139f123c5a5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db4a3225b7ed76afd928fb4f60cd4adb8add6ec0f7696774864b139f123c5a5c", kill_on_drop: false }`
[INFO] [stdout] db4a3225b7ed76afd928fb4f60cd4adb8add6ec0f7696774864b139f123c5a5c