[INFO] cloning repository https://github.com/myFavShrimp/arc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/myFavShrimp/arc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmyFavShrimp%2Farc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmyFavShrimp%2Farc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e54b9807a886e450e2888a5a2eaaa8b425a17f54
[INFO] checking myFavShrimp/arc against master#ca77504943887037504c7fc0b9bf06dab3910373 for pr-145181
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FmyFavShrimp%2Farc" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/myFavShrimp/arc
[INFO] finished tweaking git repo https://github.com/myFavShrimp/arc
[INFO] tweaked toml for git repo https://github.com/myFavShrimp/arc written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/myFavShrimp/arc on toolchain ca77504943887037504c7fc0b9bf06dab3910373
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ca77504943887037504c7fc0b9bf06dab3910373" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/myFavShrimp/arc 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" "+ca77504943887037504c7fc0b9bf06dab3910373" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded luau0-src v0.12.3+luau663
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+ca77504943887037504c7fc0b9bf06dab3910373" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2c558232b35ef5dc5231f239c3daec40316942d7957a5e5dd881d6eeee00cf2
[INFO] running `Command { std: "docker" "start" "-a" "a2c558232b35ef5dc5231f239c3daec40316942d7957a5e5dd881d6eeee00cf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2c558232b35ef5dc5231f239c3daec40316942d7957a5e5dd881d6eeee00cf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2c558232b35ef5dc5231f239c3daec40316942d7957a5e5dd881d6eeee00cf2", kill_on_drop: false }`
[INFO] [stdout] a2c558232b35ef5dc5231f239c3daec40316942d7957a5e5dd881d6eeee00cf2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid" "-e" "RUSTDOCFLAGS=--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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+ca77504943887037504c7fc0b9bf06dab3910373" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94b2796784b4a122ef563751fcad0800124a416e97e4a37ace664e380dda92df
[INFO] running `Command { std: "docker" "start" "-a" "94b2796784b4a122ef563751fcad0800124a416e97e4a37ace664e380dda92df", kill_on_drop: false }`
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[INFO] [stderr]    Compiling pest_derive v2.7.15
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[INFO] [stderr]     Checking arc-engine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `verbosity`
[INFO] [stdout]   --> src/engine.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         verbosity: u8,
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_verbosity`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `verbosity`
[INFO] [stdout]   --> src/engine.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         verbosity: u8,
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_verbosity`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileReadResult` is never constructed
[INFO] [stdout]   --> src/engine/delegator/executor.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct FileReadResult {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileWriteResult` is never constructed
[INFO] [stdout]   --> src/engine/delegator/executor.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct FileWriteResult {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UninitializedSshClientError` is never constructed
[INFO] [stdout]    --> src/engine/delegator/operator.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout] 116 | pub struct UninitializedSshClientError;
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TaskError` is never used
[INFO] [stdout]    --> src/engine/delegator/operator.rs:120:10
[INFO] [stdout]     |
[INFO] [stdout] 120 | pub enum TaskError {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TargetsAcquisitionError` is never used
[INFO] [stdout]   --> src/engine/modules/targets.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub enum TargetsAcquisitionError {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TargetsValidationError` is never used
[INFO] [stdout]   --> src/engine/modules/targets.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub enum TargetsValidationError {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GroupMembersNotDefinedError` is never constructed
[INFO] [stdout]   --> src/engine/modules/targets.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct GroupMembersNotDefinedError(String, pub Vec<String>);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GroupsRetrievalError` is never constructed
[INFO] [stdout]   --> src/engine/modules/targets/groups.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub struct GroupsRetrievalError(#[from] MutexLockError);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DuplicateGroupError` is never constructed
[INFO] [stdout]   --> src/engine/modules/targets/groups.rs:89:12
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub struct DuplicateGroupError(pub String);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GroupNotDefinedError` is never constructed
[INFO] [stdout]    --> src/engine/modules/targets/groups.rs:100:12
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub struct GroupNotDefinedError(String);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DuplicateSystemError` is never constructed
[INFO] [stdout]   --> src/engine/modules/targets/systems.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 | pub struct DuplicateSystemError(pub String);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SystemNotDefinedError` is never constructed
[INFO] [stdout]    --> src/engine/modules/targets/systems.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub struct SystemNotDefinedError(String);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TaskNotDefinedError` is never constructed
[INFO] [stdout]    --> src/engine/modules/tasks.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub struct TaskNotDefinedError(String);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnregisteredDependenciesError` is never constructed
[INFO] [stdout]    --> src/engine/modules/tasks.rs:121:12
[INFO] [stdout]     |
[INFO] [stdout] 121 | pub struct UnregisteredDependenciesError(pub Vec<String>);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DuplicateTaskError` is never constructed
[INFO] [stdout]    --> src/engine/modules/tasks.rs:125:12
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub struct DuplicateTaskError(pub String);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileReadResult` is never constructed
[INFO] [stdout]   --> src/engine/delegator/executor.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct FileReadResult {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileWriteResult` is never constructed
[INFO] [stdout]   --> src/engine/delegator/executor.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct FileWriteResult {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UninitializedSshClientError` is never constructed
[INFO] [stdout]    --> src/engine/delegator/operator.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout] 116 | pub struct UninitializedSshClientError;
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TaskError` is never used
[INFO] [stdout]    --> src/engine/delegator/operator.rs:120:10
[INFO] [stdout]     |
[INFO] [stdout] 120 | pub enum TaskError {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TargetsAcquisitionError` is never used
[INFO] [stdout]   --> src/engine/modules/targets.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub enum TargetsAcquisitionError {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TargetsValidationError` is never used
[INFO] [stdout]   --> src/engine/modules/targets.rs:26:10
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub enum TargetsValidationError {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GroupMembersNotDefinedError` is never constructed
[INFO] [stdout]   --> src/engine/modules/targets.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct GroupMembersNotDefinedError(String, pub Vec<String>);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GroupsRetrievalError` is never constructed
[INFO] [stdout]   --> src/engine/modules/targets/groups.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub struct GroupsRetrievalError(#[from] MutexLockError);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DuplicateGroupError` is never constructed
[INFO] [stdout]   --> src/engine/modules/targets/groups.rs:89:12
[INFO] [stdout]    |
[INFO] [stdout] 89 | pub struct DuplicateGroupError(pub String);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GroupNotDefinedError` is never constructed
[INFO] [stdout]    --> src/engine/modules/targets/groups.rs:100:12
[INFO] [stdout]     |
[INFO] [stdout] 100 | pub struct GroupNotDefinedError(String);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DuplicateSystemError` is never constructed
[INFO] [stdout]   --> src/engine/modules/targets/systems.rs:97:12
[INFO] [stdout]    |
[INFO] [stdout] 97 | pub struct DuplicateSystemError(pub String);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SystemNotDefinedError` is never constructed
[INFO] [stdout]    --> src/engine/modules/targets/systems.rs:108:12
[INFO] [stdout]     |
[INFO] [stdout] 108 | pub struct SystemNotDefinedError(String);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TaskNotDefinedError` is never constructed
[INFO] [stdout]    --> src/engine/modules/tasks.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 117 | pub struct TaskNotDefinedError(String);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnregisteredDependenciesError` is never constructed
[INFO] [stdout]    --> src/engine/modules/tasks.rs:121:12
[INFO] [stdout]     |
[INFO] [stdout] 121 | pub struct UnregisteredDependenciesError(pub Vec<String>);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DuplicateTaskError` is never constructed
[INFO] [stdout]    --> src/engine/modules/tasks.rs:125:12
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub struct DuplicateTaskError(pub String);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 25s
[INFO] running `Command { std: "docker" "inspect" "94b2796784b4a122ef563751fcad0800124a416e97e4a37ace664e380dda92df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94b2796784b4a122ef563751fcad0800124a416e97e4a37ace664e380dda92df", kill_on_drop: false }`
[INFO] [stdout] 94b2796784b4a122ef563751fcad0800124a416e97e4a37ace664e380dda92df