[INFO] cloning repository https://github.com/bIgBV/autobhan
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bIgBV/autobhan" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FbIgBV%2Fautobhan", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FbIgBV%2Fautobhan'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f6bf88b7ca38af43a481f6109ae2baf0335337f0
[INFO] testing bIgBV/autobhan against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FbIgBV%2Fautobhan" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bIgBV/autobhan on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bIgBV/autobhan
[INFO] finished tweaking git repo https://github.com/bIgBV/autobhan
[INFO] tweaked toml for git repo https://github.com/bIgBV/autobhan written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/bIgBV/autobhan already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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] c345157b2106c1ace990948b0029cf05c0865daa7a65fa2e727bac73b6a5e89d
[INFO] running `Command { std: "docker" "start" "-a" "c345157b2106c1ace990948b0029cf05c0865daa7a65fa2e727bac73b6a5e89d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c345157b2106c1ace990948b0029cf05c0865daa7a65fa2e727bac73b6a5e89d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c345157b2106c1ace990948b0029cf05c0865daa7a65fa2e727bac73b6a5e89d", kill_on_drop: false }`
[INFO] [stdout] c345157b2106c1ace990948b0029cf05c0865daa7a65fa2e727bac73b6a5e89d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--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] 8fd3f5b5d908b04b4c37467a5f4a60f9e91c0347d45a644941eafc36ed3e42e8
[INFO] running `Command { std: "docker" "start" "-a" "8fd3f5b5d908b04b4c37467a5f4a60f9e91c0347d45a644941eafc36ed3e42e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling tracing-core v0.1.18
[INFO] [stderr]    Compiling sharded-slab v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling generator v0.6.25
[INFO] [stderr]    Compiling loom v0.2.15
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling tracing-serde v0.1.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling tracing-subscriber v0.2.19
[INFO] [stderr]    Compiling monza v0.1.0 (/opt/rustwide/workdir/monza)
[INFO] [stdout] warning: unused imports: `AtomicBool`, `RwLock`
[INFO] [stdout]  --> monza/src/lib.rs:6:24
[INFO] [stdout]   |
[INFO] [stdout] 6 |         atomic::{self, AtomicBool, AtomicU32, Ordering},
[INFO] [stdout]   |                        ^^^^^^^^^^
[INFO] [stdout] 7 |         RwLock,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `loom::sync::CausalCell`
[INFO] [stdout]   --> monza/src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use loom::sync::CausalCell;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]    --> monza/src/lib.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |             atomic::spin_loop_hint();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]    --> monza/src/lib.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |             atomic::spin_loop_hint()
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU32::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> monza/src/lib.rs:100:26
[INFO] [stdout]     |
[INFO] [stdout] 100 |                         .compare_and_swap(tail, tail.wrapping_add(1), Ordering::SeqCst);
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU32::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> monza/src/lib.rs:136:18
[INFO] [stdout]     |
[INFO] [stdout] 136 |                 .compare_and_swap(head, head.wrapping_add(1), Ordering::SeqCst);
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BUF_SIZE`
[INFO] [stdout]   --> monza/src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | const BUF_SIZE: usize = 256;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling autobahn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.97s
[INFO] running `Command { std: "docker" "inspect" "8fd3f5b5d908b04b4c37467a5f4a60f9e91c0347d45a644941eafc36ed3e42e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fd3f5b5d908b04b4c37467a5f4a60f9e91c0347d45a644941eafc36ed3e42e8", kill_on_drop: false }`
[INFO] [stdout] 8fd3f5b5d908b04b4c37467a5f4a60f9e91c0347d45a644941eafc36ed3e42e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d4ef5d0a3d0ba7a6cbed111da44b98a28f67b4c4be9f13aa4c98127db9a2522
[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" "2d4ef5d0a3d0ba7a6cbed111da44b98a28f67b4c4be9f13aa4c98127db9a2522", kill_on_drop: false }`
[INFO] [stderr]    Compiling autobahn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `AtomicBool`, `RwLock`
[INFO] [stdout]  --> monza/src/lib.rs:6:24
[INFO] [stdout]   |
[INFO] [stdout] 6 |         atomic::{self, AtomicBool, AtomicU32, Ordering},
[INFO] [stdout]   |                        ^^^^^^^^^^
[INFO] [stdout] 7 |         RwLock,
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `loom::sync::CausalCell`
[INFO] [stdout]   --> monza/src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use loom::sync::CausalCell;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]    --> monza/src/lib.rs:109:13
[INFO] [stdout]     |
[INFO] [stdout] 109 |             atomic::spin_loop_hint();
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stdout]    --> monza/src/lib.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |             atomic::spin_loop_hint()
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU32::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> monza/src/lib.rs:100:26
[INFO] [stdout]     |
[INFO] [stdout] 100 |                         .compare_and_swap(tail, tail.wrapping_add(1), Ordering::SeqCst);
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::sync::atomic::AtomicU32::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> monza/src/lib.rs:136:18
[INFO] [stdout]     |
[INFO] [stdout] 136 |                 .compare_and_swap(head, head.wrapping_add(1), Ordering::SeqCst);
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BUF_SIZE`
[INFO] [stdout]   --> monza/src/lib.rs:14:1
[INFO] [stdout]    |
[INFO] [stdout] 14 | const BUF_SIZE: usize = 256;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "2d4ef5d0a3d0ba7a6cbed111da44b98a28f67b4c4be9f13aa4c98127db9a2522", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d4ef5d0a3d0ba7a6cbed111da44b98a28f67b4c4be9f13aa4c98127db9a2522", kill_on_drop: false }`
[INFO] [stdout] 2d4ef5d0a3d0ba7a6cbed111da44b98a28f67b4c4be9f13aa4c98127db9a2522
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", 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] 043d7c6f3251adcecc6c3ad463c72ad1e63abfab0b1db8daf0d55bd3a6351f78
[INFO] running `Command { std: "docker" "start" "-a" "043d7c6f3251adcecc6c3ad463c72ad1e63abfab0b1db8daf0d55bd3a6351f78", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused imports: `AtomicBool`, `RwLock`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> monza/src/lib.rs:6:24
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 6 |         atomic::{self, AtomicBool, AtomicU32, Ordering},
[INFO] [stdout] 
[INFO] [stderr]   |                        ^^^^^^^^^^
[INFO] [stderr] 7 |         RwLock,
[INFO] [stderr]   |         ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `loom::sync::CausalCell`
[INFO] [stderr]   --> monza/src/lib.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use loom::sync::CausalCell;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stderr]    --> monza/src/lib.rs:109:13
[INFO] [stderr]     |
[INFO] [stderr] 109 |             atomic::spin_loop_hint();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated function `std::sync::atomic::spin_loop_hint`: use hint::spin_loop instead
[INFO] [stderr]    --> monza/src/lib.rs:145:13
[INFO] [stderr]     |
[INFO] [stderr] 145 |             atomic::spin_loop_hint()
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::sync::atomic::AtomicU32::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]    --> monza/src/lib.rs:100:26
[INFO] [stderr]     |
[INFO] [stderr] 100 |                         .compare_and_swap(tail, tail.wrapping_add(1), Ordering::SeqCst);
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::sync::atomic::AtomicU32::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]    --> monza/src/lib.rs:136:18
[INFO] [stderr]     |
[INFO] [stderr] 136 |                 .compare_and_swap(head, head.wrapping_add(1), Ordering::SeqCst);
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `BUF_SIZE`
[INFO] [stderr]   --> monza/src/lib.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | const BUF_SIZE: usize = 256;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/autobahn-233d2226d5e1c4c6)
[INFO] running `Command { std: "docker" "inspect" "043d7c6f3251adcecc6c3ad463c72ad1e63abfab0b1db8daf0d55bd3a6351f78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "043d7c6f3251adcecc6c3ad463c72ad1e63abfab0b1db8daf0d55bd3a6351f78", kill_on_drop: false }`
[INFO] [stdout] 043d7c6f3251adcecc6c3ad463c72ad1e63abfab0b1db8daf0d55bd3a6351f78