[INFO] fetching crate buf-min 0.4.0...
[INFO] testing buf-min-0.4.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate buf-min 0.4.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate buf-min 0.4.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate buf-min 0.4.0
[INFO] finished tweaking crates.io crate buf-min 0.4.0
[INFO] tweaked toml for crates.io crate buf-min 0.4.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bytes v0.5.6
[INFO] [stderr]   Downloaded bytes v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fca01e48d95af1500b053edac49d89a2de935da6df392489382e608d3f0a9c80
[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" "fca01e48d95af1500b053edac49d89a2de935da6df392489382e608d3f0a9c80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fca01e48d95af1500b053edac49d89a2de935da6df392489382e608d3f0a9c80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fca01e48d95af1500b053edac49d89a2de935da6df392489382e608d3f0a9c80", kill_on_drop: false }`
[INFO] [stdout] fca01e48d95af1500b053edac49d89a2de935da6df392489382e608d3f0a9c80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] afccc83d8823f45e75844073a3e44e653cdd998a35813d8453e9ec47913a6608
[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" "afccc83d8823f45e75844073a3e44e653cdd998a35813d8453e9ec47913a6608", kill_on_drop: false }`
[INFO] [stderr]    Compiling buf-min v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/lib.rs:99:1
[INFO] [stdout]     |
[INFO] [stdout] 99  | / macro_rules! implement {
[INFO] [stdout] 100 | |     ($base:path) => {
[INFO] [stdout] 101 | |         pub use $base::{Bytes, BytesMut};
[INFO] [stdout] 102 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 173 | |     };
[INFO] [stdout] 174 | | }
[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 0.48s
[INFO] running `Command { std: "docker" "inspect" "afccc83d8823f45e75844073a3e44e653cdd998a35813d8453e9ec47913a6608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afccc83d8823f45e75844073a3e44e653cdd998a35813d8453e9ec47913a6608", kill_on_drop: false }`
[INFO] [stdout] afccc83d8823f45e75844073a3e44e653cdd998a35813d8453e9ec47913a6608
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52bd3f847056f92528fc85c7d7b685a398fc97b601e6514dc04c899f6c855114
[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" "52bd3f847056f92528fc85c7d7b685a398fc97b601e6514dc04c899f6c855114", kill_on_drop: false }`
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/lib.rs:99:1
[INFO] [stdout]     |
[INFO] [stdout] 99  | / macro_rules! implement {
[INFO] [stdout] 100 | |     ($base:path) => {
[INFO] [stdout] 101 | |         pub use $base::{Bytes, BytesMut};
[INFO] [stdout] 102 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 173 | |     };
[INFO] [stdout] 174 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling buf-min v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/lib.rs:99:1
[INFO] [stdout]     |
[INFO] [stdout] 99  | / macro_rules! implement {
[INFO] [stdout] 100 | |     ($base:path) => {
[INFO] [stdout] 101 | |         pub use $base::{Bytes, BytesMut};
[INFO] [stdout] 102 | |
[INFO] [stdout] ...   |
[INFO] [stdout] 173 | |     };
[INFO] [stdout] 174 | | }
[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 test [unoptimized + debuginfo] target(s) in 0.62s
[INFO] running `Command { std: "docker" "inspect" "52bd3f847056f92528fc85c7d7b685a398fc97b601e6514dc04c899f6c855114", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52bd3f847056f92528fc85c7d7b685a398fc97b601e6514dc04c899f6c855114", kill_on_drop: false }`
[INFO] [stdout] 52bd3f847056f92528fc85c7d7b685a398fc97b601e6514dc04c899f6c855114
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 35c96fc27c47bc4ea5612063536c863d46a773d7609da9c2ad06e5b4e554c6d7
[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" "35c96fc27c47bc4ea5612063536c863d46a773d7609da9c2ad06e5b4e554c6d7", kill_on_drop: false }`
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/lib.rs:99:1
[INFO] [stderr]     |
[INFO] [stderr] 99  | / macro_rules! implement {
[INFO] [stderr] 100 | |     ($base:path) => {
[INFO] [stderr] 101 | |         pub use $base::{Bytes, BytesMut};
[INFO] [stderr] 102 | |
[INFO] [stderr] ...   |
[INFO] [stderr] 173 | |     };
[INFO] [stderr] 174 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/lib.rs:99:1
[INFO] [stderr]     |
[INFO] [stderr] 99  | / macro_rules! implement {
[INFO] [stderr] 100 | |     ($base:path) => {
[INFO] [stderr] 101 | |         pub use $base::{Bytes, BytesMut};
[INFO] [stderr] 102 | |
[INFO] [stderr] ...   |
[INFO] [stderr] 173 | |     };
[INFO] [stderr] 174 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/buf_min-58db482342b97b97
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests buf-min
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "35c96fc27c47bc4ea5612063536c863d46a773d7609da9c2ad06e5b4e554c6d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35c96fc27c47bc4ea5612063536c863d46a773d7609da9c2ad06e5b4e554c6d7", kill_on_drop: false }`
[INFO] [stdout] 35c96fc27c47bc4ea5612063536c863d46a773d7609da9c2ad06e5b4e554c6d7