[INFO] fetching crate clap_up 0.0.0...
[INFO] checking clap_up-0.0.0 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate clap_up 0.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate clap_up 0.0.0 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate clap_up 0.0.0
[INFO] finished tweaking crates.io crate clap_up 0.0.0
[INFO] tweaked toml for crates.io crate clap_up 0.0.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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] ad528c53bc6610be1a8ed807f1e5fac4571851e818bd5fe42b352db47648a3d6
[INFO] running `Command { std: "docker" "start" "-a" "ad528c53bc6610be1a8ed807f1e5fac4571851e818bd5fe42b352db47648a3d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad528c53bc6610be1a8ed807f1e5fac4571851e818bd5fe42b352db47648a3d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad528c53bc6610be1a8ed807f1e5fac4571851e818bd5fe42b352db47648a3d6", kill_on_drop: false }`
[INFO] [stdout] ad528c53bc6610be1a8ed807f1e5fac4571851e818bd5fe42b352db47648a3d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c37d09524ea32d7423177976ec4ad4195e2de6d5830f4488c781adba6cc86f02
[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" "c37d09524ea32d7423177976ec4ad4195e2de6d5830f4488c781adba6cc86f02", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
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[INFO] [stderr]    Compiling chalk-derive v0.27.0
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[INFO] [stderr]     Checking cargo-up v0.0.4
[INFO] [stderr]     Checking clap_up v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `name_ref`
[INFO] [stdout]   --> src/lib.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |     if let Some(name_ref) = method_call_expr.name_ref() {
[INFO] [stdout]    |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_name_ref`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `upgrader`
[INFO] [stdout]   --> src/lib.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     upgrader: &mut Upgrader,
[INFO] [stdout]    |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_upgrader`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `semantics`
[INFO] [stdout]   --> src/lib.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     semantics: &Semantics,
[INFO] [stdout]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_semantics`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name_ref`
[INFO] [stdout]   --> src/lib.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |     if let Some(name_ref) = method_call_expr.name_ref() {
[INFO] [stdout]    |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_name_ref`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `upgrader`
[INFO] [stdout]   --> src/lib.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     upgrader: &mut Upgrader,
[INFO] [stdout]    |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_upgrader`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `semantics`
[INFO] [stdout]   --> src/lib.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     semantics: &Semantics,
[INFO] [stdout]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_semantics`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 28s
[INFO] running `Command { std: "docker" "inspect" "c37d09524ea32d7423177976ec4ad4195e2de6d5830f4488c781adba6cc86f02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c37d09524ea32d7423177976ec4ad4195e2de6d5830f4488c781adba6cc86f02", kill_on_drop: false }`
[INFO] [stdout] c37d09524ea32d7423177976ec4ad4195e2de6d5830f4488c781adba6cc86f02