[INFO] fetching crate diffmetrik 0.3.0...
[INFO] testing diffmetrik-0.3.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate diffmetrik 0.3.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate diffmetrik 0.3.0 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 diffmetrik 0.3.0
[INFO] finished tweaking crates.io crate diffmetrik 0.3.0
[INFO] tweaked toml for crates.io crate diffmetrik 0.3.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate diffmetrik 0.3.0 already has a lockfile, it will not be regenerated
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded human_format v1.0.3
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e022d81624fad74a0f90308d2e28a5e67a39f3c4bcef7b114d9e5ef9c0b82e3
[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" "1e022d81624fad74a0f90308d2e28a5e67a39f3c4bcef7b114d9e5ef9c0b82e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e022d81624fad74a0f90308d2e28a5e67a39f3c4bcef7b114d9e5ef9c0b82e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e022d81624fad74a0f90308d2e28a5e67a39f3c4bcef7b114d9e5ef9c0b82e3", kill_on_drop: false }`
[INFO] [stdout] 1e022d81624fad74a0f90308d2e28a5e67a39f3c4bcef7b114d9e5ef9c0b82e3
[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=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] 14bf0514bdac9db048bfb72fe6e40ee36cf4557448d08ec32899ceee8f6ea0d3
[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" "14bf0514bdac9db048bfb72fe6e40ee36cf4557448d08ec32899ceee8f6ea0d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.7
[INFO] [stderr]    Compiling syn v1.0.13
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling human_format v1.0.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling backtrace v0.3.41
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn-mid v0.4.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling rustversion v1.0.1
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling proc-macro-error v0.4.4
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.3
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling sysctl v0.4.0
[INFO] [stderr]    Compiling structopt-derive v0.4.0
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling structopt v0.3.7
[INFO] [stderr]    Compiling serde_json v1.0.44
[INFO] [stderr]    Compiling diffmetrik v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]    --> src/metrics/network.rs:260:14
[INFO] [stdout]     |
[INFO] [stdout] 260 |         .map({ |line| LinuxProcNetDevLine::new(line) })
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]    --> src/metrics/network.rs:259:17
[INFO] [stdout]     |
[INFO] [stdout] 259 |         .filter({ |line| line.starts_with("eth") })
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]    --> src/metrics/network.rs:258:14
[INFO] [stdout]     |
[INFO] [stdout] 258 |         .map({ |line| line.trim() })
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/metrics/mod.rs:63:38
[INFO] [stdout]    |
[INFO] [stdout] 63 |         metrics.sort_unstable_by_key({ |a| a.time });
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.03s
[INFO] running `Command { std: "docker" "inspect" "14bf0514bdac9db048bfb72fe6e40ee36cf4557448d08ec32899ceee8f6ea0d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14bf0514bdac9db048bfb72fe6e40ee36cf4557448d08ec32899ceee8f6ea0d3", kill_on_drop: false }`
[INFO] [stdout] 14bf0514bdac9db048bfb72fe6e40ee36cf4557448d08ec32899ceee8f6ea0d3
[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=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] 0b683da92ca076980eacbbd1a346d515c7733367a98b7ec7acec29a9573e2f65
[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" "0b683da92ca076980eacbbd1a346d515c7733367a98b7ec7acec29a9573e2f65", kill_on_drop: false }`
[INFO] [stderr]    Compiling diffmetrik v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]    --> src/metrics/network.rs:260:14
[INFO] [stdout]     |
[INFO] [stdout] 260 |         .map({ |line| LinuxProcNetDevLine::new(line) })
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]    --> src/metrics/network.rs:259:17
[INFO] [stdout]     |
[INFO] [stdout] 259 |         .filter({ |line| line.starts_with("eth") })
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]    --> src/metrics/network.rs:258:14
[INFO] [stdout]     |
[INFO] [stdout] 258 |         .map({ |line| line.trim() })
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/metrics/mod.rs:63:38
[INFO] [stdout]    |
[INFO] [stdout] 63 |         metrics.sort_unstable_by_key({ |a| a.time });
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.66s
[INFO] running `Command { std: "docker" "inspect" "0b683da92ca076980eacbbd1a346d515c7733367a98b7ec7acec29a9573e2f65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b683da92ca076980eacbbd1a346d515c7733367a98b7ec7acec29a9573e2f65", kill_on_drop: false }`
[INFO] [stdout] 0b683da92ca076980eacbbd1a346d515c7733367a98b7ec7acec29a9573e2f65
[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=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] 769f3acf1c82f838b5941126d9c88c4874e7109797cdb15038f53d7e3f9610f7
[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" "769f3acf1c82f838b5941126d9c88c4874e7109797cdb15038f53d7e3f9610f7", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary braces around method argument
[INFO] [stderr]    --> src/metrics/network.rs:260:14
[INFO] [stderr]     |
[INFO] [stderr] 260 |         .map({ |line| LinuxProcNetDevLine::new(line) })
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around method argument
[INFO] [stderr]    --> src/metrics/network.rs:259:17
[INFO] [stderr]     |
[INFO] [stderr] 259 |         .filter({ |line| line.starts_with("eth") })
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around method argument
[INFO] [stderr]    --> src/metrics/network.rs:258:14
[INFO] [stderr]     |
[INFO] [stderr] 258 |         .map({ |line| line.trim() })
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around method argument
[INFO] [stderr]   --> src/metrics/mod.rs:63:38
[INFO] [stderr]    |
[INFO] [stderr] 63 |         metrics.sort_unstable_by_key({ |a| a.time });
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/diffmetrik-9067391eb0266289
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test metrics::network::tests::test_formatter ... ok
[INFO] [stdout] test storage::tests::path_set_correctly ... ok
[INFO] [stdout] test storage::tests::file_reset ... ok
[INFO] [stdout] test storage::tests::file_write ... ok
[INFO] [stdout] test storage::tests::file_read ... ok
[INFO] [stdout] test metrics::network::tests::test_linux ... ok
[INFO] [stdout] test storage::tests::file_write_len ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "769f3acf1c82f838b5941126d9c88c4874e7109797cdb15038f53d7e3f9610f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "769f3acf1c82f838b5941126d9c88c4874e7109797cdb15038f53d7e3f9610f7", kill_on_drop: false }`
[INFO] [stdout] 769f3acf1c82f838b5941126d9c88c4874e7109797cdb15038f53d7e3f9610f7