[INFO] fetching crate optargs 0.1.0... [INFO] checking optargs-0.1.0 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744 [INFO] extracting crate optargs 0.1.0 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate optargs 0.1.0 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate optargs 0.1.0 [INFO] finished tweaking crates.io crate optargs 0.1.0 [INFO] tweaked toml for crates.io crate optargs 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate crates.io crate optargs 0.1.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded optargs-macro v0.1.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] ec8e092008a8fbdc71d5606c7336aea75855e801f33aa65cdd6e85d9c5a52b06 [INFO] running `Command { std: "docker" "start" "-a" "ec8e092008a8fbdc71d5606c7336aea75855e801f33aa65cdd6e85d9c5a52b06", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ec8e092008a8fbdc71d5606c7336aea75855e801f33aa65cdd6e85d9c5a52b06", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ec8e092008a8fbdc71d5606c7336aea75855e801f33aa65cdd6e85d9c5a52b06", kill_on_drop: false }` [INFO] [stdout] ec8e092008a8fbdc71d5606c7336aea75855e801f33aa65cdd6e85d9c5a52b06 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c41f91a62cbbf47a9e66fb5c6874bcf952efee8006d5d1a92b9ce52fa4a33af1 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "c41f91a62cbbf47a9e66fb5c6874bcf952efee8006d5d1a92b9ce52fa4a33af1", kill_on_drop: false }` [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.67 [INFO] [stderr] Compiling once_cell v1.7.2 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling optargs-macro v0.1.0 [INFO] [stderr] Checking optargs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `to_the_moon` [INFO] [stdout] --> examples/demo.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | to_the_moon: Option, [INFO] [stdout] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_to_the_moon` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rocket_ships` [INFO] [stdout] --> examples/demo.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | rocket_ships: Option, [INFO] [stdout] | ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rocket_ships` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `doges` [INFO] [stdout] --> examples/demo.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | doges: Option, [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_doges` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `diamond_hands` [INFO] [stdout] --> examples/demo.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | diamond_hands: Option<&str>, [INFO] [stdout] | ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_diamond_hands` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tendies` [INFO] [stdout] --> examples/demo.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | tendies: Option, [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tendies` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `go_gme` [INFO] [stdout] --> examples/demo.rs:9:4 [INFO] [stdout] | [INFO] [stdout] 9 | fn go_gme( [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> examples/plot.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | x: Vec, [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> examples/plot.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | y: Option>, [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `title` [INFO] [stdout] --> examples/plot.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | title: Option<&str>, [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_title` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `xlabel` [INFO] [stdout] --> examples/plot.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | xlabel: Option<&str>, [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_xlabel` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ylabel` [INFO] [stdout] --> examples/plot.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | ylabel: Option<&str>, [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_ylabel` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `x` [INFO] [stdout] --> examples/plot.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let x = vec![1, 2, 3]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> examples/plot.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let y = vec![1, 2, 3]; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 15.98s [INFO] running `Command { std: "docker" "inspect" "c41f91a62cbbf47a9e66fb5c6874bcf952efee8006d5d1a92b9ce52fa4a33af1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c41f91a62cbbf47a9e66fb5c6874bcf952efee8006d5d1a92b9ce52fa4a33af1", kill_on_drop: false }` [INFO] [stdout] c41f91a62cbbf47a9e66fb5c6874bcf952efee8006d5d1a92b9ce52fa4a33af1