[INFO] fetching crate fltk 1.4.12... [INFO] checking fltk-1.4.12 against try#23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 for pr-115950 [INFO] extracting crate fltk 1.4.12 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate fltk 1.4.12 on toolchain 23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate fltk 1.4.12 [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate fltk 1.4.12 [INFO] tweaked toml for crates.io crate fltk 1.4.12 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate crates.io crate fltk 1.4.12 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" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e5f01f5a8ac4e1b5441c783793bcaef7fee4b40647ed5f63732cff2fd1fc3572 [INFO] running `Command { std: "docker" "start" "-a" "e5f01f5a8ac4e1b5441c783793bcaef7fee4b40647ed5f63732cff2fd1fc3572", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e5f01f5a8ac4e1b5441c783793bcaef7fee4b40647ed5f63732cff2fd1fc3572", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e5f01f5a8ac4e1b5441c783793bcaef7fee4b40647ed5f63732cff2fd1fc3572", kill_on_drop: false }` [INFO] [stdout] e5f01f5a8ac4e1b5441c783793bcaef7fee4b40647ed5f63732cff2fd1fc3572 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 62580f7a12ce265dd3acfe1ea12ebf92caad8035a12a23de2ec0eec1162b12c4 [INFO] running `Command { std: "docker" "start" "-a" "62580f7a12ce265dd3acfe1ea12ebf92caad8035a12a23de2ec0eec1162b12c4", kill_on_drop: false }` [INFO] [stderr] Compiling paste v1.0.14 [INFO] [stderr] Checking ttf-parser v0.19.1 [INFO] [stderr] Compiling cc v1.0.83 [INFO] [stderr] Compiling cmake v0.1.50 [INFO] [stderr] Compiling fltk-sys v1.4.12 [INFO] [stderr] Checking fltk v1.4.12 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/app/widget.rs:194:13 [INFO] [stdout] | [INFO] [stdout] 194 | let mut win = first; [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0506]: cannot assign to `win` because it is borrowed [INFO] [stdout] --> src/app/widget.rs:198:13 [INFO] [stdout] | [INFO] [stdout] 195 | while let Some(wind) = next_window(&win) { [INFO] [stdout] | ----------------- [INFO] [stdout] | | | [INFO] [stdout] | | `win` is borrowed here [INFO] [stdout] | a temporary with access to the borrow is created here ... [INFO] [stdout] ... [INFO] [stdout] 198 | win = w; [INFO] [stdout] | ^^^ `win` is assigned to here but it was already borrowed [INFO] [stdout] 199 | } [INFO] [stdout] | - ... and the borrow might be used here, when that temporary is dropped and runs the destructor for type `std::option::Option` [INFO] [stdout] | [INFO] [stdout] help: consider adding semicolon after the expression so its temporaries are dropped sooner, before the local variables declared by the block are dropped [INFO] [stdout] | [INFO] [stdout] 199 | }; [INFO] [stdout] | + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/app/widget.rs:194:13 [INFO] [stdout] | [INFO] [stdout] 194 | let mut win = first; [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0506]: cannot assign to `win` because it is borrowed [INFO] [stdout] --> src/app/widget.rs:198:13 [INFO] [stdout] | [INFO] [stdout] 195 | while let Some(wind) = next_window(&win) { [INFO] [stdout] | ----------------- [INFO] [stdout] | | | [INFO] [stdout] | | `win` is borrowed here [INFO] [stdout] | a temporary with access to the borrow is created here ... [INFO] [stdout] ... [INFO] [stdout] 198 | win = w; [INFO] [stdout] | ^^^ `win` is assigned to here but it was already borrowed [INFO] [stdout] 199 | } [INFO] [stdout] | - ... and the borrow might be used here, when that temporary is dropped and runs the destructor for type `std::option::Option` [INFO] [stdout] | [INFO] [stdout] help: consider adding semicolon after the expression so its temporaries are dropped sooner, before the local variables declared by the block are dropped [INFO] [stdout] | [INFO] [stdout] 199 | }; [INFO] [stdout] | + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0506`. [INFO] [stdout] [INFO] [stderr] error: could not compile `fltk` (lib test) due to 2 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0506`. [INFO] [stdout] [INFO] [stderr] error: could not compile `fltk` (lib) due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "62580f7a12ce265dd3acfe1ea12ebf92caad8035a12a23de2ec0eec1162b12c4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "62580f7a12ce265dd3acfe1ea12ebf92caad8035a12a23de2ec0eec1162b12c4", kill_on_drop: false }` [INFO] [stdout] 62580f7a12ce265dd3acfe1ea12ebf92caad8035a12a23de2ec0eec1162b12c4