[INFO] fetching crate rargs 0.3.0... [INFO] checking rargs-0.3.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate rargs 0.3.0 into /workspace/builds/worker-1-tc2/source [INFO] started tweaking crates.io crate rargs 0.3.0 [INFO] finished tweaking crates.io crate rargs 0.3.0 [INFO] tweaked toml for crates.io crate rargs 0.3.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate rargs 0.3.0 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 rargs 0.3.0 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 381d41c8140c89176dbc1528fc1ae2449f42cbc18c6235754883292da2f7c335 [INFO] running `Command { std: "docker" "start" "-a" "381d41c8140c89176dbc1528fc1ae2449f42cbc18c6235754883292da2f7c335", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "381d41c8140c89176dbc1528fc1ae2449f42cbc18c6235754883292da2f7c335", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "381d41c8140c89176dbc1528fc1ae2449f42cbc18c6235754883292da2f7c335", kill_on_drop: false }` [INFO] [stdout] 381d41c8140c89176dbc1528fc1ae2449f42cbc18c6235754883292da2f7c335 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] eb6500f455b096ae7d20c1e9c78333ffe3fe0aeb3e460a9d854f80b973bbb56a [INFO] running `Command { std: "docker" "start" "-a" "eb6500f455b096ae7d20c1e9c78333ffe3fe0aeb3e460a9d854f80b973bbb56a", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.12 [INFO] [stderr] Compiling syn v1.0.18 [INFO] [stderr] Compiling cc v1.0.9 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.2 [INFO] [stderr] Compiling proc-macro-error v1.0.2 [INFO] [stderr] Compiling unicode-segmentation v1.6.0 [INFO] [stderr] Checking unicode-width v0.1.4 [INFO] [stderr] Checking atty v0.2.8 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking vec_map v0.8.0 [INFO] [stderr] Checking bitflags v1.0.1 [INFO] [stderr] Checking cfg-if v0.1.2 [INFO] [stderr] Checking rustc-demangle v0.1.7 [INFO] [stderr] Checking aho-corasick v0.7.10 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking regex-syntax v0.6.17 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Checking dtoa v0.4.2 [INFO] [stderr] Checking itoa v0.4.1 [INFO] [stderr] Checking serde v1.0.37 [INFO] [stderr] Checking num-traits v0.2.2 [INFO] [stderr] Checking colored v1.6.0 [INFO] [stderr] Checking threadpool v1.8.0 [INFO] [stderr] Checking environment v0.1.1 [INFO] [stderr] Compiling quote v1.0.4 [INFO] [stderr] Compiling backtrace-sys v0.1.16 [INFO] [stderr] Checking regex v1.3.7 [INFO] [stderr] Checking serde_json v1.0.13 [INFO] [stderr] Compiling syn-mid v0.5.0 [INFO] [stderr] Compiling synstructure v0.12.3 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Compiling structopt-derive v0.4.7 [INFO] [stderr] Checking backtrace v0.3.5 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking assert_cli v0.6.3 [INFO] [stderr] Checking structopt v0.3.14 [INFO] [stderr] Checking rargs v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:118:5 [INFO] [stdout] | [INFO] [stdout] 118 | / #[structopt( [INFO] [stdout] 119 | | long = "pattern", [INFO] [stdout] 120 | | short = "p", [INFO] [stdout] 121 | | help = "regex pattern that captures the input" [INFO] [stdout] 122 | | )] [INFO] [stdout] 123 | | pattern: Option, [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:125:5 [INFO] [stdout] | [INFO] [stdout] 125 | / #[structopt( [INFO] [stdout] 126 | | long = "separator", [INFO] [stdout] 127 | | short = "s", [INFO] [stdout] 128 | | default_value = " ", [INFO] [stdout] 129 | | help = "separator for ranged fields" [INFO] [stdout] 130 | | )] [INFO] [stdout] 131 | | separator: String, [INFO] [stdout] | |_____________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:141:5 [INFO] [stdout] | [INFO] [stdout] 141 | / #[structopt( [INFO] [stdout] 142 | | long = "delimiter", [INFO] [stdout] 143 | | short = "d", [INFO] [stdout] 144 | | conflicts_with = "pattern", [INFO] [stdout] 145 | | help = "regex pattern used as delimiter (conflict with pattern)" [INFO] [stdout] 146 | | )] [INFO] [stdout] 147 | | 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:156:5 [INFO] [stdout] | [INFO] [stdout] 156 | / #[structopt(required = true, help = "command to execute and its arguments")] [INFO] [stdout] 157 | | cmd_and_args: Vec, [INFO] [stdout] | |_____________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rargs` (bin "rargs") due to 4 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:118:5 [INFO] [stdout] | [INFO] [stdout] 118 | / #[structopt( [INFO] [stdout] 119 | | long = "pattern", [INFO] [stdout] 120 | | short = "p", [INFO] [stdout] 121 | | help = "regex pattern that captures the input" [INFO] [stdout] 122 | | )] [INFO] [stdout] 123 | | pattern: Option, [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:125:5 [INFO] [stdout] | [INFO] [stdout] 125 | / #[structopt( [INFO] [stdout] 126 | | long = "separator", [INFO] [stdout] 127 | | short = "s", [INFO] [stdout] 128 | | default_value = " ", [INFO] [stdout] 129 | | help = "separator for ranged fields" [INFO] [stdout] 130 | | )] [INFO] [stdout] 131 | | separator: String, [INFO] [stdout] | |_____________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/main.rs:141:5 [INFO] [stdout] | [INFO] [stdout] 141 | / #[structopt( [INFO] [stdout] 142 | | long = "delimiter", [INFO] [stdout] 143 | | short = "d", [INFO] [stdout] 144 | | conflicts_with = "pattern", [INFO] [stdout] 145 | | help = "regex pattern used as delimiter (conflict with pattern)" [INFO] [stdout] 146 | | )] [INFO] [stdout] 147 | | 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:156:5 [INFO] [stdout] | [INFO] [stdout] 156 | / #[structopt(required = true, help = "command to execute and its arguments")] [INFO] [stdout] 157 | | cmd_and_args: Vec, [INFO] [stdout] | |_____________________________^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rargs` (bin "rargs" test) due to 4 previous errors [INFO] running `Command { std: "docker" "inspect" "eb6500f455b096ae7d20c1e9c78333ffe3fe0aeb3e460a9d854f80b973bbb56a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eb6500f455b096ae7d20c1e9c78333ffe3fe0aeb3e460a9d854f80b973bbb56a", kill_on_drop: false }` [INFO] [stdout] eb6500f455b096ae7d20c1e9c78333ffe3fe0aeb3e460a9d854f80b973bbb56a