[INFO] fetching crate slit 0.0.2... [INFO] checking slit-0.0.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate slit 0.0.2 into /workspace/builds/worker-7-tc2/source [INFO] started tweaking crates.io crate slit 0.0.2 [INFO] finished tweaking crates.io crate slit 0.0.2 [INFO] tweaked toml for crates.io crate slit 0.0.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate slit 0.0.2 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate slit 0.0.2 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 573ca292f3ad32048e5188613a8184a57332c43879754b215c9d61f17d2ffa63 [INFO] running `Command { std: "docker" "start" "-a" "573ca292f3ad32048e5188613a8184a57332c43879754b215c9d61f17d2ffa63", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "573ca292f3ad32048e5188613a8184a57332c43879754b215c9d61f17d2ffa63", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "573ca292f3ad32048e5188613a8184a57332c43879754b215c9d61f17d2ffa63", kill_on_drop: false }` [INFO] [stdout] 573ca292f3ad32048e5188613a8184a57332c43879754b215c9d61f17d2ffa63 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 79199102d5301337c1919c4e5df420d3fb8029a302de89fbb9550cc7ea3b9d03 [INFO] running `Command { std: "docker" "start" "-a" "79199102d5301337c1919c4e5df420d3fb8029a302de89fbb9550cc7ea3b9d03", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.69 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling libc v0.2.93 [INFO] [stderr] Compiling serde v1.0.125 [INFO] [stderr] Checking regex-syntax v0.6.23 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking once_cell v1.7.2 [INFO] [stderr] Checking pin-project-lite v0.2.6 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Compiling unicode-segmentation v1.2.1 [INFO] [stderr] Checking tracing-core v0.1.17 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking sharded-slab v0.1.1 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling anyhow v1.0.40 [INFO] [stderr] Checking thread_local v1.1.3 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking tracing-log v0.1.2 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking regex v1.4.5 [INFO] [stderr] Checking matchers v0.0.1 [INFO] [stderr] Checking tracing-serde v0.1.2 [INFO] [stderr] Compiling tracing-attributes v0.1.15 [INFO] [stderr] Compiling structopt-derive v0.4.14 [INFO] [stderr] Checking tracing v0.1.25 [INFO] [stderr] Checking tracing-subscriber v0.2.17 [INFO] [stderr] Checking structopt v0.3.21 [INFO] [stderr] Checking jacklog v0.0.3 [INFO] [stderr] Checking slit v0.0.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `print_undelimited` is never read [INFO] [stdout] --> src/main.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 34 | struct Cli { [INFO] [stdout] | --- field in this struct [INFO] [stdout] ... [INFO] [stdout] 48 | print_undelimited: bool, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Cli` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 35 | / /// Select only these fields; also print any line that contains no [INFO] [stdout] 36 | | /// delimiter character, unless the -s option is specified. [INFO] [stdout] 37 | | #[structopt(short = "f", long = "fields")] [INFO] [stdout] 38 | | include: String, [INFO] [stdout] | |___________________^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:40:5 [INFO] [stdout] | [INFO] [stdout] 40 | / /// Exclude only these fields; also print any line that contains no [INFO] [stdout] 41 | | /// delimiter character, unless the -s option is specified. Takes precedence [INFO] [stdout] 42 | | /// over included fields selected with -f, --fields. [INFO] [stdout] 43 | | #[structopt(short = "F", long)] [INFO] [stdout] 44 | | exclude: Option, [INFO] [stdout] | |___________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:55:5 [INFO] [stdout] | [INFO] [stdout] 55 | / /// Delimiter to use instead of whitespace to split lines on when chunking [INFO] [stdout] 56 | | /// them up into fields. [INFO] [stdout] 57 | | #[structopt(short, long)] [INFO] [stdout] 58 | | delimiter: Option, [INFO] [stdout] | |_____________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:60:5 [INFO] [stdout] | [INFO] [stdout] 60 | / /// Delimiter to use when printing the line, instead of the input [INFO] [stdout] 61 | | /// delimiter. Can be useful to transform a separated line into a line [INFO] [stdout] 62 | | /// with a new separator. them up into fields. [INFO] [stdout] 63 | | #[structopt(short = "D", long)] [INFO] [stdout] 64 | | output_delimiter: Option, [INFO] [stdout] | |____________________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:71:5 [INFO] [stdout] | [INFO] [stdout] 71 | / /// Sum the values from a file. [INFO] [stdout] 72 | | file: Option, [INFO] [stdout] | |_________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `print_undelimited` is never read [INFO] [stdout] --> src/main.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 34 | struct Cli { [INFO] [stdout] | --- field in this struct [INFO] [stdout] ... [INFO] [stdout] 48 | print_undelimited: bool, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Cli` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 35 | / /// Select only these fields; also print any line that contains no [INFO] [stdout] 36 | | /// delimiter character, unless the -s option is specified. [INFO] [stdout] 37 | | #[structopt(short = "f", long = "fields")] [INFO] [stdout] 38 | | include: String, [INFO] [stdout] | |___________________^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:40:5 [INFO] [stdout] | [INFO] [stdout] 40 | / /// Exclude only these fields; also print any line that contains no [INFO] [stdout] 41 | | /// delimiter character, unless the -s option is specified. Takes precedence [INFO] [stdout] 42 | | /// over included fields selected with -f, --fields. [INFO] [stdout] 43 | | #[structopt(short = "F", long)] [INFO] [stdout] 44 | | exclude: Option, [INFO] [stdout] | |___________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:55:5 [INFO] [stdout] | [INFO] [stdout] 55 | / /// Delimiter to use instead of whitespace to split lines on when chunking [INFO] [stdout] 56 | | /// them up into fields. [INFO] [stdout] 57 | | #[structopt(short, long)] [INFO] [stdout] 58 | | delimiter: Option, [INFO] [stdout] | |_____________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:60:5 [INFO] [stdout] | [INFO] [stdout] 60 | / /// Delimiter to use when printing the line, instead of the input [INFO] [stdout] 61 | | /// delimiter. Can be useful to transform a separated line into a line [INFO] [stdout] 62 | | /// with a new separator. them up into fields. [INFO] [stdout] 63 | | #[structopt(short = "D", long)] [INFO] [stdout] 64 | | output_delimiter: Option, [INFO] [stdout] | |____________________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:71:5 [INFO] [stdout] | [INFO] [stdout] 71 | / /// Sum the values from a file. [INFO] [stdout] 72 | | file: Option, [INFO] [stdout] | |_________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `slit` (bin "slit" test) due to 5 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `slit` (bin "slit") due to 5 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "79199102d5301337c1919c4e5df420d3fb8029a302de89fbb9550cc7ea3b9d03", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "79199102d5301337c1919c4e5df420d3fb8029a302de89fbb9550cc7ea3b9d03", kill_on_drop: false }` [INFO] [stdout] 79199102d5301337c1919c4e5df420d3fb8029a302de89fbb9550cc7ea3b9d03