[INFO] fetching crate collection 0.1.1...
[INFO] checking collection-0.1.1 against master#de32266a1780aa4ef748ce7f6200a1554fad0aca for pr-75585
[INFO] extracting crate collection 0.1.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate collection 0.1.1 on toolchain de32266a1780aa4ef748ce7f6200a1554fad0aca
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate collection 0.1.1
[INFO] finished tweaking crates.io crate collection 0.1.1
[INFO] tweaked toml for crates.io crate collection 0.1.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "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] 188c19422eeb199f3972ece3e559dc159c05619db7835d1d73fa03ecf49b101c
[INFO] running `Command { std: "docker" "start" "-a" "188c19422eeb199f3972ece3e559dc159c05619db7835d1d73fa03ecf49b101c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "188c19422eeb199f3972ece3e559dc159c05619db7835d1d73fa03ecf49b101c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "188c19422eeb199f3972ece3e559dc159c05619db7835d1d73fa03ecf49b101c", kill_on_drop: false }`
[INFO] [stdout] 188c19422eeb199f3972ece3e559dc159c05619db7835d1d73fa03ecf49b101c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+de32266a1780aa4ef748ce7f6200a1554fad0aca" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 286495a06fcd261a56fef9fa4e6f3414058355dd334a0d198ec65cdc05d47511
[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" "286495a06fcd261a56fef9fa4e6f3414058355dd334a0d198ec65cdc05d47511", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking trait-group v0.1.0
[INFO] [stderr]     Checking seahash v3.0.7
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking collection v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/collection/mod.rs:271:1
[INFO] [stdout]     |
[INFO] [stdout] 271 | / macro_rules! collection {
[INFO] [stdout] 272 | |     ($collection:ident<$t:ident>
[INFO] [stdout] 273 | |      {
[INFO] [stdout] 274 | |          $( $slot:ident: $submeta:ident<$subtype:ty>, )*
[INFO] [stdout] ...   |
[INFO] [stdout] 327 | |     )
[INFO] [stdout] 328 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.67s
[INFO] running `Command { std: "docker" "inspect" "286495a06fcd261a56fef9fa4e6f3414058355dd334a0d198ec65cdc05d47511", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "286495a06fcd261a56fef9fa4e6f3414058355dd334a0d198ec65cdc05d47511", kill_on_drop: false }`
[INFO] [stdout] 286495a06fcd261a56fef9fa4e6f3414058355dd334a0d198ec65cdc05d47511