[INFO] fetching crate servant 0.1.0... [INFO] testing servant-0.1.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031 [INFO] extracting crate servant 0.1.0 into /workspace/builds/worker-1/source [INFO] validating manifest of crates.io crate servant 0.1.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-1/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 42753d7b49beca74596bae336381cd50929edcdc2cb1bf990b91a67a6b91e720 [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" "42753d7b49beca74596bae336381cd50929edcdc2cb1bf990b91a67a6b91e720", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "42753d7b49beca74596bae336381cd50929edcdc2cb1bf990b91a67a6b91e720", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "42753d7b49beca74596bae336381cd50929edcdc2cb1bf990b91a67a6b91e720", kill_on_drop: false }` [INFO] [stdout] 42753d7b49beca74596bae336381cd50929edcdc2cb1bf990b91a67a6b91e720 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f95acac2685c5a9a9fd21ae80a6c07e28f80a8d4db1e2f717d80f89322cb8b2d [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" "f95acac2685c5a9a9fd21ae80a6c07e28f80a8d4db1e2f717d80f89322cb8b2d", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.32 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.81 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling libc v0.2.107 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling futures-core v0.3.17 [INFO] [stderr] Compiling slab v0.4.5 [INFO] [stderr] Compiling pin-project-lite v0.2.7 [INFO] [stderr] Compiling futures-io v0.3.17 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling pin-utils v0.1.0 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling once_cell v1.8.0 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling cache-padded v1.1.1 [INFO] [stderr] Compiling proc-macro-nested v0.1.7 [INFO] [stderr] Compiling fastrand v1.5.0 [INFO] [stderr] Compiling waker-fn v1.1.0 [INFO] [stderr] Compiling parking v2.0.0 [INFO] [stderr] Compiling event-listener v2.5.1 [INFO] [stderr] Compiling futures-task v0.3.17 [INFO] [stderr] Compiling futures-core-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling futures-sink-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling futures-sink v0.3.17 [INFO] [stderr] Compiling pin-project-internal v0.4.28 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Compiling futures-io-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling signal-hook v0.3.10 [INFO] [stderr] Compiling cc v1.0.72 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling spin v0.5.2 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Compiling quick-error v1.2.3 [INFO] [stderr] Compiling termcolor v1.1.2 [INFO] [stderr] Compiling untrusted v0.7.1 [INFO] [stderr] Compiling byteorder v1.4.3 [INFO] [stderr] Compiling concurrent-queue v1.2.2 [INFO] [stderr] Compiling async-mutex v1.4.0 [INFO] [stderr] Compiling async-lock v2.4.0 [INFO] [stderr] Compiling futures-channel-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling crossbeam-utils v0.6.6 [INFO] [stderr] Compiling humantime v1.3.0 [INFO] [stderr] Compiling value-bag v1.0.0-alpha.8 [INFO] [stderr] Compiling futures-macro v0.3.17 [INFO] [stderr] Compiling futures-util v0.3.17 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling futures-channel v0.3.17 [INFO] [stderr] Compiling async-channel v1.6.1 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling crossbeam-queue v0.1.2 [INFO] [stderr] Compiling futures-lite v1.12.0 [INFO] [stderr] Compiling futures-util-preview v0.3.0-alpha.19 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Compiling num_cpus v1.13.0 [INFO] [stderr] Compiling socket2 v0.4.2 [INFO] [stderr] Compiling signal-hook-registry v1.4.0 [INFO] [stderr] Compiling time v0.1.44 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling ring v0.16.20 [INFO] [stderr] Compiling async-executor v1.4.1 [INFO] [stderr] Compiling blocking v1.1.0 [INFO] [stderr] Compiling chrono v0.4.19 [INFO] [stderr] Compiling regex v1.5.4 [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 ctor v0.1.21 [INFO] [stderr] Compiling servant-macro v0.1.0 [INFO] [stderr] Compiling ring-channel v0.7.0 [INFO] [stderr] Compiling polling v2.2.0 [INFO] [stderr] Compiling env_logger v0.7.1 [INFO] [stderr] Compiling kv-log-macro v1.0.7 [INFO] [stderr] Compiling async-io v1.6.0 [INFO] [stderr] Compiling servant-log v0.1.0 [INFO] [stderr] Compiling pin-project v0.4.28 [INFO] [stderr] Compiling async-process v1.3.0 [INFO] [stderr] Compiling async-global-executor v2.0.2 [INFO] [stderr] Compiling async-std v1.10.0 [INFO] [stderr] Compiling futures-executor v0.3.17 [INFO] [stderr] Compiling futures v0.3.17 [INFO] [stderr] Compiling futures_codec v0.3.4 [INFO] [stderr] Compiling bincode v1.3.3 [INFO] [stderr] Compiling servant-codec v0.1.0 [INFO] [stderr] Compiling servant v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/accept.rs:22:6 [INFO] [stdout] | [INFO] [stdout] 22 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/adapter.rs:91:10 [INFO] [stdout] | [INFO] [stdout] 91 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] [INFO] [stdout] [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: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2m 08s [INFO] running `Command { std: "docker" "inspect" "f95acac2685c5a9a9fd21ae80a6c07e28f80a8d4db1e2f717d80f89322cb8b2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f95acac2685c5a9a9fd21ae80a6c07e28f80a8d4db1e2f717d80f89322cb8b2d", kill_on_drop: false }` [INFO] [stdout] f95acac2685c5a9a9fd21ae80a6c07e28f80a8d4db1e2f717d80f89322cb8b2d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a26c6c96668da594ec3b5c391867587d9f2bd1b0ff595572428d122f6ea0c1bc [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" "a26c6c96668da594ec3b5c391867587d9f2bd1b0ff595572428d122f6ea0c1bc", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling servant v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/accept.rs:22:6 [INFO] [stdout] | [INFO] [stdout] 22 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/adapter.rs:91:10 [INFO] [stdout] | [INFO] [stdout] 91 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] [INFO] [stdout] [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: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/accept.rs:22:6 [INFO] [stdout] | [INFO] [stdout] 22 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/adapter.rs:91:10 [INFO] [stdout] | [INFO] [stdout] 91 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] [INFO] [stdout] [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: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 5.16s [INFO] running `Command { std: "docker" "inspect" "a26c6c96668da594ec3b5c391867587d9f2bd1b0ff595572428d122f6ea0c1bc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a26c6c96668da594ec3b5c391867587d9f2bd1b0ff595572428d122f6ea0c1bc", kill_on_drop: false }` [INFO] [stdout] a26c6c96668da594ec3b5c391867587d9f2bd1b0ff595572428d122f6ea0c1bc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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] e399a601b70efd7212f83709c110e3ecc58959dfb5687bf87c0e0c7170854321 [INFO] running `Command { std: "docker" "start" "-a" "e399a601b70efd7212f83709c110e3ecc58959dfb5687bf87c0e0c7170854321", kill_on_drop: false }` [INFO] [stderr] warning: unnecessary trailing semicolon [INFO] [stderr] --> src/accept.rs:22:6 [INFO] [stderr] | [INFO] [stderr] 22 | }; [INFO] [stderr] | ^ help: remove this semicolon [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary trailing semicolon [INFO] [stderr] --> src/adapter.rs:91:10 [INFO] [stderr] | [INFO] [stderr] 91 | }; [INFO] [stderr] | ^ help: remove this semicolon [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: 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: 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: `servant` (lib) generated 14 warnings [INFO] [stderr] warning: `servant` (lib test) generated 5 warnings (4 duplicates) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.12s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/servant-44fbff967cf64027) [INFO] [stdout] [INFO] [stdout] running 8 tests [INFO] [stdout] test drop_guard::tests::deref ... ok [INFO] [stdout] test drop_guard::tests::drop_change ... ok [INFO] [stdout] test drop_guard::tests::deref_mut ... ok [INFO] [stdout] test drop_guard::tests::it_works ... ok [INFO] [stdout] test list::test::test2 ... ok [INFO] [stdout] test drop_guard::tests::keep_send_shared_data ... ok [INFO] [stdout] test drop_guard::tests::keep_sync_shared_data ... ok [INFO] [stderr] error: test failed, to rerun pass '--lib' [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: 0x56503e7e5a7c - std::backtrace_rs::backtrace::libunwind::trace::h7630ba4cba718aa0 [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x56503e7e5a7c - std::backtrace_rs::backtrace::trace_unsynchronized::he7498e79c157f5ac [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x56503e7e5a7c - std::sys_common::backtrace::_print_fmt::hdaebadaee17bca49 [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x56503e7e5a7c - ::fmt::h82b0e3aaf8a96140 [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stdout] 4: 0x56503e80882c - core::fmt::write::h72801a82c94e6ff1 [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/fmt/mod.rs:1149:17 [INFO] [stdout] 5: 0x56503e7e19b5 - std::io::Write::write_fmt::h21d7683cabdb4c35 [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/io/mod.rs:1697:15 [INFO] [stdout] 6: 0x56503e7e74d0 - std::sys_common::backtrace::_print::h1c9a1d19c48821c1 [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stdout] 7: 0x56503e7e74d0 - std::sys_common::backtrace::print::h7ce8802039fa9d0e [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stdout] 8: 0x56503e7e74d0 - std::panicking::default_hook::{{closure}}::hb2a74a8c1499c326 [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:211:50 [INFO] [stdout] 9: 0x56503e7e70b6 - std::panicking::default_hook::hf4f180b00076f2b2 [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:225:9 [INFO] [stdout] 10: 0x56503e7e7b84 - std::panicking::rust_panic_with_hook::he85ce8435493b711 [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:606:17 [INFO] [stdout] 11: 0x56503e7e7632 - std::panicking::begin_panic_handler::{{closure}}::h31e15f69e6235bd2 [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:500:13 [INFO] [stdout] 12: 0x56503e7e5f34 - std::sys_common::backtrace::__rust_end_short_backtrace::hfce2fadb61aaa3ae [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:139:18 [INFO] [stdout] 13: 0x56503e7e75c9 - rust_begin_unwind [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:498:5 [INFO] [stdout] 14: 0x56503e77f861 - core::panicking::panic_fmt::h7b8580d81fcbbacd [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/panicking.rs:107:14 [INFO] [stdout] 15: 0x56503e77f7ad - core::panicking::panic::h50b51d19800453c0 [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/panicking.rs:48:5 [INFO] [stdout] 16: 0x56503e78935a - servant::list::List::remove::h463e7f318384c59e [INFO] [stdout] at /opt/rustwide/workdir/src/list.rs:116:9 [INFO] [stdout] 17: 0x56503e781986 - servant::list::test::test1::h60a18708f19492ac [INFO] [stdout] at /opt/rustwide/workdir/src/list.rs:213:9 [INFO] [stdout] 18: 0x56503e7800aa - servant::list::test::test1::{{closure}}::h05e76f4eeb6b6034 [INFO] [stdout] at /opt/rustwide/workdir/src/list.rs:189:5 [INFO] [stdout] 19: 0x56503e78cace - core::ops::function::FnOnce::call_once::h67be73b42f5106be [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 20: 0x56503e7c1713 - core::ops::function::FnOnce::call_once::h449577f1c5b077cb [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 21: 0x56503e7c1713 - test::__rust_begin_short_backtrace::h8c2a0a5090591869 [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/test/src/lib.rs:585:5 [INFO] [stdout] 22: 0x56503e7c02a7 - as core::ops::function::FnOnce>::call_once::hea00a22128a38543 [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/alloc/src/boxed.rs:1694:9 [INFO] [stdout] 23: 0x56503e7c02a7 - as core::ops::function::FnOnce<()>>::call_once::he10b35c3c50d78a0 [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 24: 0x56503e7c02a7 - std::panicking::try::do_call::hc868e78bbc5af2ab [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:406:40 [INFO] [stdout] 25: 0x56503e7c02a7 - std::panicking::try::he468aede74df1b04 [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:370:19 [INFO] [stdout] 26: 0x56503e7c02a7 - std::panic::catch_unwind::hce3c9152e1cf772d [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panic.rs:133:14 [INFO] [stdout] 27: 0x56503e7c02a7 - test::run_test_in_process::h9c4ab8162080cf8c [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/test/src/lib.rs:608:18 [INFO] [stdout] 28: 0x56503e7c02a7 - test::run_test::run_test_inner::{{closure}}::he9483433cef16afe [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/test/src/lib.rs:500:39 [INFO] [stdout] 29: 0x56503e78d5ee - test::run_test::run_test_inner::{{closure}}::h479f1f872a5501ea [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/test/src/lib.rs:527:37 [INFO] [stdout] 30: 0x56503e78d5ee - std::sys_common::backtrace::__rust_begin_short_backtrace::h0f1e9b1f279687bc [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys_common/backtrace.rs:123:18 [INFO] [stdout] 31: 0x56503e792418 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::he5560613c5f5cb83 [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/thread/mod.rs:484:17 [INFO] [stdout] 32: 0x56503e792418 - as core::ops::function::FnOnce<()>>::call_once::h8190a68cb05ab92f [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 33: 0x56503e792418 - std::panicking::try::do_call::h6ae22f5ac22596e4 [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:406:40 [INFO] [stdout] 34: 0x56503e792418 - std::panicking::try::h2381c25487d6a7c2 [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panicking.rs:370:19 [INFO] [stdout] 35: 0x56503e792418 - std::panic::catch_unwind::hfe902f4d5c9d7b6d [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/panic.rs:133:14 [INFO] [stdout] 36: 0x56503e792418 - std::thread::Builder::spawn_unchecked::{{closure}}::h547fad40771a584e [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/thread/mod.rs:483:30 [INFO] [stdout] 37: 0x56503e792418 - core::ops::function::FnOnce::call_once{{vtable.shim}}::he8602a9971738410 [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 38: 0x56503e7ec613 - as core::ops::function::FnOnce>::call_once::he162a5c338a10a39 [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/alloc/src/boxed.rs:1694:9 [INFO] [stdout] 39: 0x56503e7ec613 - as core::ops::function::FnOnce>::call_once::hb27497b21740dd97 [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/alloc/src/boxed.rs:1694:9 [INFO] [stdout] 40: 0x56503e7ec613 - std::sys::unix::thread::Thread::new::thread_start::he467e990e49c5136 [INFO] [stdout] at /rustc/a77da2d454e6caa227a85b16410b95f93495e7e0/library/std/src/sys/unix/thread.rs:106:17 [INFO] [stdout] 41: 0x7fe287370609 - start_thread [INFO] [stdout] 42: 0x7fe287142293 - clone [INFO] [stdout] 43: 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 0.05s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "e399a601b70efd7212f83709c110e3ecc58959dfb5687bf87c0e0c7170854321", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e399a601b70efd7212f83709c110e3ecc58959dfb5687bf87c0e0c7170854321", kill_on_drop: false }` [INFO] [stdout] e399a601b70efd7212f83709c110e3ecc58959dfb5687bf87c0e0c7170854321