[INFO] fetching crate servant 0.1.0... [INFO] testing servant-0.1.0 against beta-2021-01-01 for beta-1.50-1 [INFO] extracting crate servant 0.1.0 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate servant 0.1.0 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 servant 0.1.0 [INFO] finished tweaking crates.io crate servant 0.1.0 [INFO] tweaked toml for crates.io crate servant 0.1.0 written to /workspace/builds/worker-7/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 servant-log v0.1.0 [INFO] [stderr] Downloaded servant-codec v0.1.0 [INFO] [stderr] Downloaded servant-macro 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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 6007c00356f63252ab4610362340ddcfec49a838757186868806682339f6f869 [INFO] running `Command { std: "docker" "start" "-a" "6007c00356f63252ab4610362340ddcfec49a838757186868806682339f6f869", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6007c00356f63252ab4610362340ddcfec49a838757186868806682339f6f869", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6007c00356f63252ab4610362340ddcfec49a838757186868806682339f6f869", kill_on_drop: false }` [INFO] [stdout] 6007c00356f63252ab4610362340ddcfec49a838757186868806682339f6f869 [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=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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 89151f9d167a0dc01900deaecf0255c179668bde84c32528219b577634a834a2 [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" "89151f9d167a0dc01900deaecf0255c179668bde84c32528219b577634a834a2", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.57 [INFO] [stderr] Compiling once_cell v1.5.2 [INFO] [stderr] Compiling futures-io v0.3.8 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling parking v2.0.0 [INFO] [stderr] Compiling waker-fn v1.1.0 [INFO] [stderr] Compiling fastrand v1.4.0 [INFO] [stderr] Compiling futures-sink-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling futures-sink v0.3.8 [INFO] [stderr] Compiling futures-core-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling vec-arena v1.0.0 [INFO] [stderr] Compiling event-listener v2.5.1 [INFO] [stderr] Compiling futures-io-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling termcolor v1.1.2 [INFO] [stderr] Compiling atomic-waker v1.0.0 [INFO] [stderr] Compiling crossbeam-utils v0.6.6 [INFO] [stderr] Compiling futures-channel v0.3.8 [INFO] [stderr] Compiling futures-channel-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling async-channel v1.5.1 [INFO] [stderr] Compiling async-mutex v1.4.0 [INFO] [stderr] Compiling nb-connect v1.0.2 [INFO] [stderr] Compiling signal-hook-registry v1.3.0 [INFO] [stderr] Compiling smallvec v0.6.13 [INFO] [stderr] Compiling futures-task v0.3.8 [INFO] [stderr] Compiling ring v0.16.19 [INFO] [stderr] Compiling futures-lite v1.11.3 [INFO] [stderr] Compiling futures-util-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling signal-hook v0.1.17 [INFO] [stderr] Compiling crossbeam-queue v0.1.2 [INFO] [stderr] Compiling polling v2.0.2 [INFO] [stderr] Compiling kv-log-macro v1.0.7 [INFO] [stderr] Compiling env_logger v0.7.1 [INFO] [stderr] Compiling async-io v1.3.1 [INFO] [stderr] Compiling async-executor v1.4.0 [INFO] [stderr] Compiling blocking v1.0.2 [INFO] [stderr] Compiling async-global-executor v1.4.3 [INFO] [stderr] Compiling async-process v1.0.1 [INFO] [stderr] Compiling async-std v1.8.0 [INFO] [stderr] Compiling futures-executor-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling futures-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling derivative v1.0.4 [INFO] [stderr] Compiling pin-project-internal v1.0.2 [INFO] [stderr] Compiling futures-macro v0.3.8 [INFO] [stderr] Compiling serde_derive v1.0.118 [INFO] [stderr] Compiling pin-project-internal v0.4.27 [INFO] [stderr] Compiling servant-macro v0.1.0 [INFO] [stderr] Compiling ring-channel v0.7.0 [INFO] [stderr] Compiling servant-log v0.1.0 [INFO] [stderr] Compiling pin-project v1.0.2 [INFO] [stderr] Compiling futures-util v0.3.8 [INFO] [stderr] Compiling pin-project v0.4.27 [INFO] [stderr] Compiling serde v1.0.118 [INFO] [stderr] Compiling futures-executor v0.3.8 [INFO] [stderr] Compiling futures v0.3.8 [INFO] [stderr] Compiling futures_codec v0.3.4 [INFO] [stderr] Compiling bincode v1.3.1 [INFO] [stderr] Compiling servant-codec v0.1.0 [INFO] [stderr] Compiling servant v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `record` [INFO] [stdout] --> src/accept.rs:38:22 [INFO] [stdout] | [INFO] [stdout] 38 | Some(record) => unreachable!(), [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `tail` [INFO] [stdout] --> src/list.rs:43:5 [INFO] [stdout] | [INFO] [stdout] 43 | tail: Option>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/list.rs:47:12 [INFO] [stdout] | [INFO] [stdout] 47 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `len` [INFO] [stdout] --> src/list.rs:54:12 [INFO] [stdout] | [INFO] [stdout] 54 | pub fn len(&self) -> usize { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `top` [INFO] [stdout] --> src/list.rs:57:12 [INFO] [stdout] | [INFO] [stdout] 57 | pub fn top(&mut self, node: Node) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `bottom` [INFO] [stdout] --> src/list.rs:81:12 [INFO] [stdout] | [INFO] [stdout] 81 | pub fn bottom(&mut self, node: Node) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `remove` [INFO] [stdout] --> src/list.rs:105:12 [INFO] [stdout] | [INFO] [stdout] 105 | pub fn remove(&mut self, node: Node) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `push_head` [INFO] [stdout] --> src/list.rs:118:12 [INFO] [stdout] | [INFO] [stdout] 118 | pub fn push_head(&mut self, val: T) -> Node { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `push_back` [INFO] [stdout] --> src/list.rs:134:12 [INFO] [stdout] | [INFO] [stdout] 134 | pub fn push_back(&mut self, val: T) -> Node { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `pop_head` [INFO] [stdout] --> src/list.rs:150:12 [INFO] [stdout] | [INFO] [stdout] 150 | pub fn pop_head(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `pop_back` [INFO] [stdout] --> src/list.rs:165:12 [INFO] [stdout] | [INFO] [stdout] 165 | pub fn pop_back(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `DEFAULT_TIMEOUT_MS` [INFO] [stdout] --> src/servant.rs:63:1 [INFO] [stdout] | [INFO] [stdout] 63 | const DEFAULT_TIMEOUT_MS: usize = 5000; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 21s [INFO] running `Command { std: "docker" "inspect" "89151f9d167a0dc01900deaecf0255c179668bde84c32528219b577634a834a2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "89151f9d167a0dc01900deaecf0255c179668bde84c32528219b577634a834a2", kill_on_drop: false }` [INFO] [stdout] 89151f9d167a0dc01900deaecf0255c179668bde84c32528219b577634a834a2 [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=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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] da99e8bb135c1b089cd63460c1e1639203aa52c6f0a7224535aa82ff690c6277 [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" "da99e8bb135c1b089cd63460c1e1639203aa52c6f0a7224535aa82ff690c6277", kill_on_drop: false }` [INFO] [stdout] warning: unused variable: `record` [INFO] [stdout] --> src/accept.rs:38:22 [INFO] [stdout] | [INFO] [stdout] 38 | Some(record) => unreachable!(), [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `tail` [INFO] [stdout] --> src/list.rs:43:5 [INFO] [stdout] | [INFO] [stdout] 43 | tail: Option>, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `new` [INFO] [stdout] --> src/list.rs:47:12 [INFO] [stdout] | [INFO] [stdout] 47 | pub fn new() -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `len` [INFO] [stdout] --> src/list.rs:54:12 [INFO] [stdout] | [INFO] [stdout] 54 | pub fn len(&self) -> usize { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `top` [INFO] [stdout] --> src/list.rs:57:12 [INFO] [stdout] | [INFO] [stdout] 57 | pub fn top(&mut self, node: Node) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `bottom` [INFO] [stdout] --> src/list.rs:81:12 [INFO] [stdout] | [INFO] [stdout] 81 | pub fn bottom(&mut self, node: Node) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `remove` [INFO] [stdout] --> src/list.rs:105:12 [INFO] [stdout] | [INFO] [stdout] 105 | pub fn remove(&mut self, node: Node) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `push_head` [INFO] [stdout] --> src/list.rs:118:12 [INFO] [stdout] | [INFO] [stdout] 118 | pub fn push_head(&mut self, val: T) -> Node { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `push_back` [INFO] [stdout] --> src/list.rs:134:12 [INFO] [stdout] | [INFO] [stdout] 134 | pub fn push_back(&mut self, val: T) -> Node { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `pop_head` [INFO] [stdout] --> src/list.rs:150:12 [INFO] [stdout] | [INFO] [stdout] 150 | pub fn pop_head(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `pop_back` [INFO] [stdout] --> src/list.rs:165:12 [INFO] [stdout] | [INFO] [stdout] 165 | pub fn pop_back(&mut self) -> Option { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `DEFAULT_TIMEOUT_MS` [INFO] [stdout] --> src/servant.rs:63:1 [INFO] [stdout] | [INFO] [stdout] 63 | const DEFAULT_TIMEOUT_MS: usize = 5000; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling servant v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `record` [INFO] [stdout] --> src/accept.rs:38:22 [INFO] [stdout] | [INFO] [stdout] 38 | Some(record) => unreachable!(), [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `len` [INFO] [stdout] --> src/list.rs:54:12 [INFO] [stdout] | [INFO] [stdout] 54 | pub fn len(&self) -> usize { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `DEFAULT_TIMEOUT_MS` [INFO] [stdout] --> src/servant.rs:63:1 [INFO] [stdout] | [INFO] [stdout] 63 | const DEFAULT_TIMEOUT_MS: usize = 5000; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 3.82s [INFO] running `Command { std: "docker" "inspect" "da99e8bb135c1b089cd63460c1e1639203aa52c6f0a7224535aa82ff690c6277", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "da99e8bb135c1b089cd63460c1e1639203aa52c6f0a7224535aa82ff690c6277", kill_on_drop: false }` [INFO] [stdout] da99e8bb135c1b089cd63460c1e1639203aa52c6f0a7224535aa82ff690c6277 [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=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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 0a7ae309477dee21c5bc525f37a3d382c7825c8751ed0247f83a8c84c725567d [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" "0a7ae309477dee21c5bc525f37a3d382c7825c8751ed0247f83a8c84c725567d", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: unused variable: `record` [INFO] [stderr] --> src/accept.rs:38:22 [INFO] [stderr] | [INFO] [stderr] 38 | Some(record) => unreachable!(), [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `tail` [INFO] [stderr] --> src/list.rs:43:5 [INFO] [stderr] | [INFO] [stderr] 43 | tail: Option>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `new` [INFO] [stderr] --> src/list.rs:47:12 [INFO] [stderr] | [INFO] [stderr] 47 | pub fn new() -> Self { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `len` [INFO] [stderr] --> src/list.rs:54:12 [INFO] [stderr] | [INFO] [stderr] 54 | pub fn len(&self) -> usize { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `top` [INFO] [stderr] --> src/list.rs:57:12 [INFO] [stderr] | [INFO] [stderr] 57 | pub fn top(&mut self, node: Node) { [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `bottom` [INFO] [stderr] --> src/list.rs:81:12 [INFO] [stderr] | [INFO] [stderr] 81 | pub fn bottom(&mut self, node: Node) { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `remove` [INFO] [stderr] --> src/list.rs:105:12 [INFO] [stderr] | [INFO] [stderr] 105 | pub fn remove(&mut self, node: Node) { [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `push_head` [INFO] [stderr] --> src/list.rs:118:12 [INFO] [stderr] | [INFO] [stderr] 118 | pub fn push_head(&mut self, val: T) -> Node { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `push_back` [INFO] [stderr] --> src/list.rs:134:12 [INFO] [stderr] | [INFO] [stderr] 134 | pub fn push_back(&mut self, val: T) -> Node { [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `pop_head` [INFO] [stderr] --> src/list.rs:150:12 [INFO] [stderr] | [INFO] [stderr] 150 | pub fn pop_head(&mut self) -> Option { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `pop_back` [INFO] [stderr] --> src/list.rs:165:12 [INFO] [stderr] | [INFO] [stderr] 165 | pub fn pop_back(&mut self) -> Option { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: constant is never used: `DEFAULT_TIMEOUT_MS` [INFO] [stderr] --> src/servant.rs:63:1 [INFO] [stderr] | [INFO] [stderr] 63 | const DEFAULT_TIMEOUT_MS: usize = 5000; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 12 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused variable: `record` [INFO] [stderr] --> src/accept.rs:38:22 [INFO] [stderr] | [INFO] [stderr] 38 | Some(record) => unreachable!(), [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_record` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `len` [INFO] [stderr] --> src/list.rs:54:12 [INFO] [stderr] | [INFO] [stderr] 54 | pub fn len(&self) -> usize { [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: constant is never used: `DEFAULT_TIMEOUT_MS` [INFO] [stderr] --> src/servant.rs:63:1 [INFO] [stderr] | [INFO] [stderr] 63 | const DEFAULT_TIMEOUT_MS: usize = 5000; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.88s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/servant-56ffb870c48425ad [INFO] [stdout] [INFO] [stdout] running 8 tests [INFO] [stdout] test drop_guard::tests::it_works ... ok [INFO] [stdout] test drop_guard::tests::keep_send_shared_data ... ok [INFO] [stdout] test drop_guard::tests::keep_sync_shared_data ... ok [INFO] [stdout] test drop_guard::tests::drop_change ... ok [INFO] [stdout] test drop_guard::tests::deref_mut ... ok [INFO] [stdout] test list::test::test2 ... ok [INFO] [stdout] test drop_guard::tests::deref ... ok [INFO] [stdout] test list::test::test1 ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- list::test::test1 stdout ---- [INFO] [stdout] [src/list.rs:197] &l = [1]-(|1|) [INFO] [stdout] [src/list.rs:199] &l = [2]-(|4>)-(<1|) [INFO] [stdout] [src/list.rs:201] &l = [3]-(|4>)-(<1>)-(<2|) [INFO] [stdout] [src/list.rs:203] &l = [4]-(|5>)-(<4>)-(<1>)-(<2|) [INFO] [stdout] [src/list.rs:205] &l = [5]-(|5>)-(<4>)-(<1>)-(<2>)-(<3|) [INFO] [stdout] [src/list.rs:208] &l = [4]-(|5>)-(<4>)-(<2>)-(<3|) [INFO] [stdout] [src/list.rs:210] &l = [2]-(|4>)-(<2>)-(<3|) [INFO] [stdout] [src/list.rs:212] &l = [1]-(|4>)-(<3|) [INFO] [stdout] thread 'list::test::test1' panicked at 'attempt to subtract with overflow', src/list.rs:116:9 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x564e66713477 - std::backtrace_rs::backtrace::libunwind::trace::hcd6e187547b8deec [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stdout] 1: 0x564e66713477 - std::backtrace_rs::backtrace::trace_unsynchronized::hde10036eb783fbc7 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x564e66713477 - std::sys_common::backtrace::_print_fmt::h63987b8f86dfc82a [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x564e66713477 - ::fmt::hc33f3ac4cc9c4196 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stdout] 4: 0x564e6673348c - core::fmt::write::hfdcdeb08fb2b3afa [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/fmt/mod.rs:1078:17 [INFO] [stdout] 5: 0x564e6670f8f2 - std::io::Write::write_fmt::h28c53dc51251a293 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/io/mod.rs:1519:15 [INFO] [stdout] 6: 0x564e66715725 - std::sys_common::backtrace::_print::hf179508b01f66878 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stdout] 7: 0x564e66715725 - std::sys_common::backtrace::print::ha97d11adb39266a6 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stdout] 8: 0x564e66715725 - std::panicking::default_hook::{{closure}}::h8da9985a98bd1582 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:208:50 [INFO] [stdout] 9: 0x564e667152b2 - std::panicking::default_hook::hbc0ee792993c2ef2 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:222:9 [INFO] [stdout] 10: 0x564e66715ec1 - std::panicking::rust_panic_with_hook::h9fb9cda33a10f084 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:591:17 [INFO] [stdout] 11: 0x564e667159d7 - std::panicking::begin_panic_handler::{{closure}}::hf3e83396e085962e [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:495:13 [INFO] [stdout] 12: 0x564e6671393c - std::sys_common::backtrace::__rust_end_short_backtrace::hac151ac4c1e3252d [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stdout] 13: 0x564e66715969 - rust_begin_unwind [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:493:5 [INFO] [stdout] 14: 0x564e66731e41 - core::panicking::panic_fmt::hf6d8a92b065b8f97 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/panicking.rs:92:14 [INFO] [stdout] 15: 0x564e66731d8d - core::panicking::panic::h95b17729da7179c5 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/panicking.rs:50:5 [INFO] [stdout] 16: 0x564e666ac471 - servant::list::List::remove::h5c8047b4b5e269ae [INFO] [stdout] at /opt/rustwide/workdir/src/list.rs:116:9 [INFO] [stdout] 17: 0x564e666a4e90 - servant::list::test::test1::hb6fdc33ba20c77fd [INFO] [stdout] at /opt/rustwide/workdir/src/list.rs:213:9 [INFO] [stdout] 18: 0x564e666a317a - servant::list::test::test1::{{closure}}::hd2ceed860438ee25 [INFO] [stdout] at /opt/rustwide/workdir/src/list.rs:189:5 [INFO] [stdout] 19: 0x564e666a7eee - core::ops::function::FnOnce::call_once::h78d89bba3ebedd92 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 20: 0x564e666da993 - core::ops::function::FnOnce::call_once::ha61d5393ae51ae22 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 21: 0x564e666da993 - test::__rust_begin_short_backtrace::h4a8691b5281c1f3b [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/test/src/lib.rs:516:5 [INFO] [stdout] 22: 0x564e666d9286 - as core::ops::function::FnOnce>::call_once::hd25ba61494055ad3 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/alloc/src/boxed.rs:1328:9 [INFO] [stdout] 23: 0x564e666d9286 - as core::ops::function::FnOnce<()>>::call_once::h052fde7b846767ba [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panic.rs:322:9 [INFO] [stdout] 24: 0x564e666d9286 - std::panicking::try::do_call::h04571a1da6838ba1 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:379:40 [INFO] [stdout] 25: 0x564e666d9286 - std::panicking::try::h758f090614125cbe [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:343:19 [INFO] [stdout] 26: 0x564e666d9286 - std::panic::catch_unwind::h0c48513d5a021d3c [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panic.rs:396:14 [INFO] [stdout] 27: 0x564e666d9286 - test::run_test_in_process::hee75babaaac3822f [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/test/src/lib.rs:538:18 [INFO] [stdout] 28: 0x564e666d9286 - test::run_test::run_test_inner::{{closure}}::h2920dea75d7f0c1e [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/test/src/lib.rs:449:39 [INFO] [stdout] 29: 0x564e666b1596 - std::sys_common::backtrace::__rust_begin_short_backtrace::ha23dff608830db13 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stdout] 30: 0x564e666b632d - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hacce322dead3a799 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/thread/mod.rs:474:17 [INFO] [stdout] 31: 0x564e666b632d - as core::ops::function::FnOnce<()>>::call_once::h4f0bc9c26ead0a27 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panic.rs:322:9 [INFO] [stdout] 32: 0x564e666b632d - std::panicking::try::do_call::h1b9f282fb0c383b3 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:379:40 [INFO] [stdout] 33: 0x564e666b632d - std::panicking::try::hed1ebed51b133ee4 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:343:19 [INFO] [stdout] 34: 0x564e666b632d - std::panic::catch_unwind::h072a2b19fd39a474 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panic.rs:396:14 [INFO] [stdout] 35: 0x564e666b632d - std::thread::Builder::spawn_unchecked::{{closure}}::hb02c6b2d3ff18bc2 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/thread/mod.rs:473:30 [INFO] [stdout] 36: 0x564e666b632d - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb512c5d27b4adb83 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 37: 0x564e6671ba1a - as core::ops::function::FnOnce>::call_once::hdbb9ff71143eaad6 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/alloc/src/boxed.rs:1328:9 [INFO] [stdout] 38: 0x564e6671ba1a - as core::ops::function::FnOnce>::call_once::h9dbde95cefb8368c [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/alloc/src/boxed.rs:1328:9 [INFO] [stdout] 39: 0x564e6671ba1a - std::sys::unix::thread::Thread::new::thread_start::hc76032c38affd972 [INFO] [stdout] at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys/unix/thread.rs:71:17 [INFO] [stdout] 40: 0x7fa39afdb609 - start_thread [INFO] [stdout] 41: 0x7fa39adad293 - clone [INFO] [stdout] 42: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] list::test::test1 [INFO] [stdout] [INFO] [stdout] test result: FAILED. 7 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--lib' [INFO] running `Command { std: "docker" "inspect" "0a7ae309477dee21c5bc525f37a3d382c7825c8751ed0247f83a8c84c725567d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0a7ae309477dee21c5bc525f37a3d382c7825c8751ed0247f83a8c84c725567d", kill_on_drop: false }` [INFO] [stdout] 0a7ae309477dee21c5bc525f37a3d382c7825c8751ed0247f83a8c84c725567d