[INFO] fetching crate collection 0.1.1...
[INFO] checking collection-0.1.1 against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] extracting crate collection 0.1.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate collection 0.1.1 on toolchain 05c8870159e4f328578a970e125aa76d24f03b56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "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-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded seahash v3.0.7
[INFO] [stderr]   Downloaded trait-group 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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "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] ac3b09c81e4fdaf9916df89205d1cdf24083073a03dc1e8d662774d9c7acac6d
[INFO] running `Command { std: "docker" "start" "-a" "ac3b09c81e4fdaf9916df89205d1cdf24083073a03dc1e8d662774d9c7acac6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac3b09c81e4fdaf9916df89205d1cdf24083073a03dc1e8d662774d9c7acac6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac3b09c81e4fdaf9916df89205d1cdf24083073a03dc1e8d662774d9c7acac6d", kill_on_drop: false }`
[INFO] [stdout] ac3b09c81e4fdaf9916df89205d1cdf24083073a03dc1e8d662774d9c7acac6d
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] a46c29ceb842d9ae31ebd04740c72d5fc5b5eeaa6d7b748523eac8478ca22eab
[INFO] running `Command { std: "docker" "start" "-a" "a46c29ceb842d9ae31ebd04740c72d5fc5b5eeaa6d7b748523eac8478ca22eab", kill_on_drop: false }`
[INFO] [stderr]     Checking seahash v3.0.7
[INFO] [stderr]     Checking trait-group v0.1.0
[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 1.26s
[INFO] running `Command { std: "docker" "inspect" "a46c29ceb842d9ae31ebd04740c72d5fc5b5eeaa6d7b748523eac8478ca22eab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a46c29ceb842d9ae31ebd04740c72d5fc5b5eeaa6d7b748523eac8478ca22eab", kill_on_drop: false }`
[INFO] [stdout] a46c29ceb842d9ae31ebd04740c72d5fc5b5eeaa6d7b748523eac8478ca22eab