[INFO] fetching crate stronghold-communication 0.4.1...
[INFO] testing stronghold-communication-0.4.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate stronghold-communication 0.4.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate stronghold-communication 0.4.1
[INFO] finished tweaking crates.io crate stronghold-communication 0.4.1
[INFO] tweaked toml for crates.io crate stronghold-communication 0.4.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate stronghold-communication 0.4.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate stronghold-communication 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0cb822c8206e5739c49c38cd655337e1d7d59d82232048816f30c56b54ad53b
[INFO] running `Command { std: "docker" "start" "-a" "d0cb822c8206e5739c49c38cd655337e1d7d59d82232048816f30c56b54ad53b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0cb822c8206e5739c49c38cd655337e1d7d59d82232048816f30c56b54ad53b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0cb822c8206e5739c49c38cd655337e1d7d59d82232048816f30c56b54ad53b", kill_on_drop: false }`
[INFO] [stdout] d0cb822c8206e5739c49c38cd655337e1d7d59d82232048816f30c56b54ad53b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c09e7c44fd0d469414710f3a9091f09c274a37f6dbff9abc74dc42921148589
[INFO] running `Command { std: "docker" "start" "-a" "8c09e7c44fd0d469414710f3a9091f09c274a37f6dbff9abc74dc42921148589", kill_on_drop: false }`
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[INFO] [stderr]    Compiling regex v1.4.5
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[INFO] [stderr]    Compiling async-std v1.9.0
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[INFO] [stderr]    Compiling if-watch v0.2.2
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[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling multihash v0.13.2
[INFO] [stderr]    Compiling config v0.10.1
[INFO] [stderr]    Compiling chrono v0.4.19
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[INFO] [stderr]    Compiling minicbor v0.8.1
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[INFO] [stderr]    Compiling futures-rustls v0.21.1
[INFO] [stderr]    Compiling slog-stdlog v4.1.0
[INFO] [stderr]    Compiling webpki-roots v0.21.1
[INFO] [stderr]    Compiling dns-parser v0.8.0
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[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling textwrap v0.12.1
[INFO] [stderr]    Compiling stronghold-derive v0.2.0
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]    Compiling riker v0.4.2
[INFO] [stderr]    Compiling libp2p-swarm-derive v0.23.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling os_str_bytes v2.4.0
[INFO] [stderr]    Compiling libp2p-swarm v0.29.0
[INFO] [stderr]    Compiling libp2p-dns v0.28.1
[INFO] [stderr]    Compiling libp2p-websocket v0.29.0
[INFO] [stderr]    Compiling libp2p-tcp v0.28.0
[INFO] [stderr]    Compiling libp2p-yamux v0.32.0
[INFO] [stderr]    Compiling stronghold-utils v0.3.0
[INFO] [stderr]    Compiling clap v3.0.0-beta.2
[INFO] [stderr]    Compiling libp2p-request-response v0.11.0
[INFO] [stderr]    Compiling libp2p-mdns v0.30.1
[INFO] [stderr]    Compiling libp2p v0.37.1
[INFO] [stderr]    Compiling stronghold-communication v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `start`, `connected_point`, and `is_relay` are never read
[INFO] [stdout]   --> src/actor/types.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub struct EstablishedConnection {
[INFO] [stdout]    |            --------------------- fields in this struct
[INFO] [stdout] 86 |     start: Instant,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 87 |     connected_point: ConnectedPoint,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 88 |     is_relay: Option<RelayDirection>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EstablishedConnection` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 38s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v5.1.2, snow v0.7.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "8c09e7c44fd0d469414710f3a9091f09c274a37f6dbff9abc74dc42921148589", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c09e7c44fd0d469414710f3a9091f09c274a37f6dbff9abc74dc42921148589", kill_on_drop: false }`
[INFO] [stdout] 8c09e7c44fd0d469414710f3a9091f09c274a37f6dbff9abc74dc42921148589
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9316be38fad98414fc591fbc7e9304b3474c59bedada7d4e4a0dcbf7288064e9
[INFO] running `Command { std: "docker" "start" "-a" "9316be38fad98414fc591fbc7e9304b3474c59bedada7d4e4a0dcbf7288064e9", kill_on_drop: false }`
[INFO] [stdout] warning: fields `start`, `connected_point`, and `is_relay` are never read
[INFO] [stdout]   --> src/actor/types.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub struct EstablishedConnection {
[INFO] [stdout]    |            --------------------- fields in this struct
[INFO] [stdout] 86 |     start: Instant,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 87 |     connected_point: ConnectedPoint,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 88 |     is_relay: Option<RelayDirection>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EstablishedConnection` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling stronghold-communication v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> tests/test_macro.rs:11:11
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Tuple(String),
[INFO] [stdout]    |     ----- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 11 -     Tuple(String),
[INFO] [stdout] 11 +     Tuple(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `listening_addr` is never read
[INFO] [stdout]    --> tests/test_actor.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |     struct ActorB {
[INFO] [stdout]     |            ------ field in this struct
[INFO] [stdout] 142 |         listening_addr: Multiaddr,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ActorB` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `start`, `connected_point`, and `is_relay` are never read
[INFO] [stdout]   --> src/actor/types.rs:86:5
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub struct EstablishedConnection {
[INFO] [stdout]    |            --------------------- fields in this struct
[INFO] [stdout] 86 |     start: Instant,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 87 |     connected_point: ConnectedPoint,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 88 |     is_relay: Option<RelayDirection>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `EstablishedConnection` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v5.1.2, snow v0.7.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "9316be38fad98414fc591fbc7e9304b3474c59bedada7d4e4a0dcbf7288064e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9316be38fad98414fc591fbc7e9304b3474c59bedada7d4e4a0dcbf7288064e9", kill_on_drop: false }`
[INFO] [stdout] 9316be38fad98414fc591fbc7e9304b3474c59bedada7d4e4a0dcbf7288064e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f3125b190e63a573718c384dbd73e15679f89fc7b9d7872a2634b9b593af1951
[INFO] running `Command { std: "docker" "start" "-a" "f3125b190e63a573718c384dbd73e15679f89fc7b9d7872a2634b9b593af1951", kill_on_drop: false }`
[INFO] [stderr] warning: fields `start`, `connected_point`, and `is_relay` are never read
[INFO] [stderr]   --> src/actor/types.rs:86:5
[INFO] [stderr]    |
[INFO] [stderr] 85 | pub struct EstablishedConnection {
[INFO] [stderr]    |            --------------------- fields in this struct
[INFO] [stderr] 86 |     start: Instant,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 87 |     connected_point: ConnectedPoint,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 88 |     is_relay: Option<RelayDirection>,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `EstablishedConnection` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `stronghold-communication` (lib) generated 1 warning
[INFO] [stderr] warning: `stronghold-communication` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: field `listening_addr` is never read
[INFO] [stderr]    --> tests/test_actor.rs:142:9
[INFO] [stderr]     |
[INFO] [stderr] 141 |     struct ActorB {
[INFO] [stderr]     |            ------ field in this struct
[INFO] [stderr] 142 |         listening_addr: Multiaddr,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `ActorB` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> tests/test_macro.rs:11:11
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Tuple(String),
[INFO] [stderr]    |     ----- ^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 11 -     Tuple(String),
[INFO] [stderr] 11 +     Tuple(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `stronghold-communication` (test "test_actor") generated 1 warning
[INFO] [stderr] warning: `stronghold-communication` (test "test_macro") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.59s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v5.1.2, snow v0.7.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/communication-3c5da4865c6ef84a)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test behaviour::protocol::test::send_response ... ok
[INFO] [stdout] test behaviour::protocol::test::send_request ... ok
[INFO] [stdout] test behaviour::protocol::test::corrupt_request - should panic ... ok
[INFO] [stdout] test behaviour::protocol::test::corrupt_response - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.53s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_actor.rs (/opt/rustwide/target/debug/deps/test_actor-882ec2db118b5c7c)
[INFO] [stdout] running 10 tests
[INFO] [stdout] test ask_swarm_info ... ok
[INFO] [stdout] test connect_invalid - should panic ... ok
[INFO] [stdout] test no_soliloquize ... ok
[INFO] [stdout] test ask_request ... ok
[INFO] [stdout] test firewall_forbid_out ... ok
[INFO] [stdout] test manage_connection ... ok
[INFO] [stdout] test msg_external_actor ... ok
[INFO] [stdout] test firewall_rules_selective ... ok
[INFO] [stdout] test firewall_forbid_in ... ok
[INFO] [stdout] test relay ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 20.71s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_behaviour.rs (/opt/rustwide/target/debug/deps/test_behaviour-38054339513a4bd9)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test listen_addr ... ok
[INFO] [stdout] test add_peer ... ok
[INFO] [stdout] test new_behaviour ... ok
[INFO] [stdout] test zeroed_addr ... ok
[INFO] [stdout] test request_response ... ok
[INFO] [stdout] test relay ... ok
[INFO] [stdout] test identify_event ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 40.18s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_macro.rs (/opt/rustwide/target/debug/deps/test_macro-f94f970d633cccd6)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test enum_permissions ... ok
[INFO] [stdout] test struct_permission ... ok
[INFO] [stdout] test union_permission ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests communication
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/behaviour.rs - behaviour::P2PNetworkBehaviour<Req,Res>::init_swarm (line 184) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 32) - compile ... ok
[INFO] [stdout] test src/actor.rs - actor (line 18) - compile ... ok
[INFO] [stdout] test src/behaviour.rs - behaviour (line 15) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.75s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f3125b190e63a573718c384dbd73e15679f89fc7b9d7872a2634b9b593af1951", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3125b190e63a573718c384dbd73e15679f89fc7b9d7872a2634b9b593af1951", kill_on_drop: false }`
[INFO] [stdout] f3125b190e63a573718c384dbd73e15679f89fc7b9d7872a2634b9b593af1951