[INFO] fetching crate cpclib-imgconverter 0.8.2...
[INFO] checking cpclib-imgconverter-0.8.2 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate cpclib-imgconverter 0.8.2 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate cpclib-imgconverter 0.8.2 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cpclib-imgconverter 0.8.2
[INFO] finished tweaking crates.io crate cpclib-imgconverter 0.8.2
[INFO] tweaked toml for crates.io crate cpclib-imgconverter 0.8.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate cpclib-imgconverter 0.8.2 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a67b5a649111bdf0c9a0615b5e0f6d1ff8320698520b99f87ec72462adf6b8d0
[INFO] running `Command { std: "docker" "start" "-a" "a67b5a649111bdf0c9a0615b5e0f6d1ff8320698520b99f87ec72462adf6b8d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a67b5a649111bdf0c9a0615b5e0f6d1ff8320698520b99f87ec72462adf6b8d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a67b5a649111bdf0c9a0615b5e0f6d1ff8320698520b99f87ec72462adf6b8d0", kill_on_drop: false }`
[INFO] [stdout] a67b5a649111bdf0c9a0615b5e0f6d1ff8320698520b99f87ec72462adf6b8d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail_expr_drop_order" "-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31192fbe357802fca30789028eed321919e79a25e27974807ff43097616c99dc
[INFO] running `Command { std: "docker" "start" "-a" "31192fbe357802fca30789028eed321919e79a25e27974807ff43097616c99dc", kill_on_drop: false }`
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[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/lib.rs:734:9
[INFO] [stdout]     |
[INFO] [stdout] 734 |           /// TODO manage the presence/absence of file in the dsk, the choice of filename and so on
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 735 | /         if sub_dsk.is_some() || sub_exec.is_some() {
[INFO] [stdout] 736 | |             let code = match &conversion {
[INFO] [stdout] 737 | |                 Output::CPCMemoryStandard(memory, pal) => {
[INFO] [stdout] 738 | |                     standard_linked_code(output_mode, pal, memory)
[INFO] [stdout] ...   |
[INFO] [stdout] 799 | |             }
[INFO] [stdout] 800 | |         }
[INFO] [stdout]     | |_________- rustdoc does not generate documentation for expressions
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/lib.rs:734:9
[INFO] [stdout]     |
[INFO] [stdout] 734 |           /// TODO manage the presence/absence of file in the dsk, the choice of filename and so on
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 735 | /         if sub_dsk.is_some() || sub_exec.is_some() {
[INFO] [stdout] 736 | |             let code = match &conversion {
[INFO] [stdout] 737 | |                 Output::CPCMemoryStandard(memory, pal) => {
[INFO] [stdout] 738 | |                     standard_linked_code(output_mode, pal, memory)
[INFO] [stdout] ...   |
[INFO] [stdout] 799 | |             }
[INFO] [stdout] 800 | |         }
[INFO] [stdout]     | |_________- rustdoc does not generate documentation for expressions
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]    --> src/lib.rs:204:24
[INFO] [stdout]     |
[INFO] [stdout] 204 |         let (mut data, header) = cpclib::disc::read(fname)?; // get the file content but skip the header
[INFO] [stdout]     |                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `header`
[INFO] [stdout]    --> src/lib.rs:204:24
[INFO] [stdout]     |
[INFO] [stdout] 204 |         let (mut data, header) = cpclib::disc::read(fname)?; // get the file content but skip the header
[INFO] [stdout]     |                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_header`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lz4_compress` is never used
[INFO] [stdout]    --> src/lib.rs:317:4
[INFO] [stdout]     |
[INFO] [stdout] 317 | fn lz4_compress(bytes: &[u8]) -> Vec<u8> {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `overscan_display_code` is never used
[INFO] [stdout]    --> src/lib.rs:477:4
[INFO] [stdout]     |
[INFO] [stdout] 477 | fn overscan_display_code(mode: u8, crtc_width: usize, pal: &Palette) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lz4_compress` is never used
[INFO] [stdout]    --> src/lib.rs:317:4
[INFO] [stdout]     |
[INFO] [stdout] 317 | fn lz4_compress(bytes: &[u8]) -> Vec<u8> {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `overscan_display_code` is never used
[INFO] [stdout]    --> src/lib.rs:477:4
[INFO] [stdout]     |
[INFO] [stdout] 477 | fn overscan_display_code(mode: u8, crtc_width: usize, pal: &Palette) -> String {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 27s
[INFO] running `Command { std: "docker" "inspect" "31192fbe357802fca30789028eed321919e79a25e27974807ff43097616c99dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31192fbe357802fca30789028eed321919e79a25e27974807ff43097616c99dc", kill_on_drop: false }`
[INFO] [stdout] 31192fbe357802fca30789028eed321919e79a25e27974807ff43097616c99dc