[INFO] cloning repository https://github.com/Tymster/EchoLearning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tymster/EchoLearning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTymster%2FEchoLearning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTymster%2FEchoLearning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 41e32c26682b311e851bf6c07692884297739c58
[INFO] testing Tymster/EchoLearning against 1.75.0 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTymster%2FEchoLearning" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tymster/EchoLearning on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Tymster/EchoLearning
[INFO] finished tweaking git repo https://github.com/Tymster/EchoLearning
[INFO] tweaked toml for git repo https://github.com/Tymster/EchoLearning written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Tymster/EchoLearning already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded scoped-futures v0.1.3
[INFO] [stderr]   Downloaded bcrypt v0.15.0
[INFO] [stderr]   Downloaded mobc v0.8.2
[INFO] [stderr]   Downloaded metrics v0.18.1
[INFO] [stderr]   Downloaded diesel-async v0.4.1
[INFO] [stderr]   Downloaded diesel v2.1.1
[INFO] [stderr]   Downloaded metrics-macros v0.5.1
[INFO] [stderr]   Downloaded diesel_derives v2.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1ef85a70dc5a0d1924520434ab39d7379865730d12b7d06860c60814a79375f
[INFO] running `Command { std: "docker" "start" "-a" "f1ef85a70dc5a0d1924520434ab39d7379865730d12b7d06860c60814a79375f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1ef85a70dc5a0d1924520434ab39d7379865730d12b7d06860c60814a79375f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1ef85a70dc5a0d1924520434ab39d7379865730d12b7d06860c60814a79375f", kill_on_drop: false }`
[INFO] [stdout] f1ef85a70dc5a0d1924520434ab39d7379865730d12b7d06860c60814a79375f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 406eec6e0f946b7da71c1ff468838135e6dddece1608f83f10a5cf037d84fd68
[INFO] running `Command { std: "docker" "start" "-a" "406eec6e0f946b7da71c1ff468838135e6dddece1608f83f10a5cf037d84fd68", kill_on_drop: false }`
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[INFO] [stderr]    Compiling thiserror-impl v1.0.48
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[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]    Compiling darling_macro v0.20.3
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[INFO] [stderr]    Compiling frunk_proc_macros v0.1.2
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[INFO] [stderr]    Compiling lexical v6.1.1
[INFO] [stderr]    Compiling diesel_table_macro_syntax v0.1.0
[INFO] [stderr]    Compiling sha2 v0.10.7
[INFO] [stderr]    Compiling darling v0.20.3
[INFO] [stderr]    Compiling sha1 v0.10.5
[INFO] [stderr]    Compiling inout v0.1.3
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling uuid v1.4.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling simple-mutex v1.1.5
[INFO] [stderr]    Compiling pest v2.7.3
[INFO] [stderr]    Compiling mysql-common-derive v0.30.2
[INFO] [stderr]    Compiling frunk v0.4.2
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling saturating v0.1.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
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[INFO] [stderr]    Compiling pin-project v1.1.3
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling arrayref v0.3.7
[INFO] [stderr]    Compiling crossbeam v0.8.2
[INFO] [stderr]    Compiling async-dup v1.2.2
[INFO] [stderr]    Compiling cipher v0.4.4
[INFO] [stderr]    Compiling diesel_derives v2.1.1
[INFO] [stderr]    Compiling lru v0.10.1
[INFO] [stderr]    Compiling hmac v0.8.1
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]    Compiling pem v2.0.1
[INFO] [stderr]    Compiling twox-hash v1.6.3
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling futures-timer v3.0.2
[INFO] [stderr]    Compiling match_cfg v0.1.0
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling blowfish v0.9.1
[INFO] [stderr]    Compiling email-encoding v0.2.0
[INFO] [stderr]    Compiling idna v0.3.0
[INFO] [stderr]    Compiling scoped-futures v0.1.3
[INFO] [stderr]    Compiling learning-project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling httpdate v1.0.3
[INFO] [stderr]    Compiling pest_meta v2.7.3
[INFO] [stdout] warning: unused import: `std::process::Command`
[INFO] [stdout]  --> build.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::process::Command;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mime v0.3.17
[INFO] [stderr]    Compiling route-recognizer v0.2.0
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling zeroize v1.6.0
[INFO] [stderr]    Compiling quoted_printable v0.4.8
[INFO] [stderr]    Compiling email_address v0.2.4
[INFO] [stderr]    Compiling bcrypt v0.15.0
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]    Compiling pest_generator v2.7.3
[INFO] [stderr]    Compiling mysql_common v0.30.6
[INFO] [stderr]    Compiling pest_derive v2.7.3
[INFO] [stderr]    Compiling serde_fmt v1.0.3
[INFO] [stderr]    Compiling erased-serde v0.3.31
[INFO] [stderr]    Compiling url v2.4.1
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling serde_qs v0.8.5
[INFO] [stderr]    Compiling chrono v0.4.31
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling diesel v2.1.1
[INFO] [stderr]    Compiling value-bag-serde1 v1.4.1
[INFO] [stderr]    Compiling value-bag v1.4.1
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling mio v0.8.8
[INFO] [stderr]    Compiling blocking v1.3.1
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling tracing-log v0.1.3
[INFO] [stderr]    Compiling femme v2.2.1
[INFO] [stderr]    Compiling handlebars v4.4.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.17
[INFO] [stderr]    Compiling tokio v1.32.0
[INFO] [stderr]    Compiling async-global-executor v2.3.1
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling tokio-util v0.7.8
[INFO] [stderr]    Compiling bb8 v0.8.1
[INFO] [stderr]    Compiling mobc v0.8.2
[INFO] [stderr]    Compiling lettre v0.10.4
[INFO] [stderr]    Compiling async-std v1.12.0
[INFO] [stderr]    Compiling mysql_async v0.32.2
[INFO] [stderr]    Compiling async-session v2.0.1
[INFO] [stderr]    Compiling async-h1 v2.3.3
[INFO] [stderr]    Compiling http-client v6.5.3
[INFO] [stderr]    Compiling async-sse v4.1.0
[INFO] [stderr]    Compiling tide v0.16.0
[INFO] [stderr]    Compiling diesel-async v0.4.1
[INFO] [stdout] warning: unused import: `info`
[INFO] [stdout]   --> src/main.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |     log::{self, info},
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Subject` is never used
[INFO] [stdout]  --> src/questions/mod.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Subject {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Question` is never constructed
[INFO] [stdout]  --> src/questions/question.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Question {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Formula` is never constructed
[INFO] [stdout]  --> src/questions/question.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Formula {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expression` is never used
[INFO] [stdout]   --> src/questions/question.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum Expression {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Value` is never used
[INFO] [stdout]   --> src/questions/question.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub enum Value {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 57.75s
[INFO] running `Command { std: "docker" "inspect" "406eec6e0f946b7da71c1ff468838135e6dddece1608f83f10a5cf037d84fd68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "406eec6e0f946b7da71c1ff468838135e6dddece1608f83f10a5cf037d84fd68", kill_on_drop: false }`
[INFO] [stdout] 406eec6e0f946b7da71c1ff468838135e6dddece1608f83f10a5cf037d84fd68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f8bb575aec6a37d4a457b579e1da6f8f39a5e579a916ff8908ab0aa2fcd7fb9
[INFO] running `Command { std: "docker" "start" "-a" "2f8bb575aec6a37d4a457b579e1da6f8f39a5e579a916ff8908ab0aa2fcd7fb9", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::process::Command`
[INFO] [stdout]  --> build.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::process::Command;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling learning-project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `info`
[INFO] [stdout]   --> src/main.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 |     log::{self, info},
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Subject` is never used
[INFO] [stdout]  --> src/questions/mod.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Subject {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Question` is never constructed
[INFO] [stdout]  --> src/questions/question.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct Question {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Formula` is never constructed
[INFO] [stdout]  --> src/questions/question.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Formula {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expression` is never used
[INFO] [stdout]   --> src/questions/question.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum Expression {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Value` is never used
[INFO] [stdout]   --> src/questions/question.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub enum Value {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.98s
[INFO] running `Command { std: "docker" "inspect" "2f8bb575aec6a37d4a457b579e1da6f8f39a5e579a916ff8908ab0aa2fcd7fb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f8bb575aec6a37d4a457b579e1da6f8f39a5e579a916ff8908ab0aa2fcd7fb9", kill_on_drop: false }`
[INFO] [stdout] 2f8bb575aec6a37d4a457b579e1da6f8f39a5e579a916ff8908ab0aa2fcd7fb9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 108a07ed430b8975d87b26159eb26684a7aeb9af5b169d158f7759614469825a
[INFO] running `Command { std: "docker" "start" "-a" "108a07ed430b8975d87b26159eb26684a7aeb9af5b169d158f7759614469825a", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::process::Command`
[INFO] [stderr]  --> build.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::process::Command;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `learning-project` (build script) generated 1 warning
[INFO] [stderr] warning: unused import: `info`
[INFO] [stderr]   --> src/main.rs:18:17
[INFO] [stderr]    |
[INFO] [stderr] 18 |     log::{self, info},
[INFO] [stderr]    |                 ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Subject` is never used
[INFO] [stderr]  --> src/questions/mod.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub enum Subject {
[INFO] [stderr]   |          ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Question` is never constructed
[INFO] [stderr]  --> src/questions/question.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub struct Question {
[INFO] [stderr]   |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Formula` is never constructed
[INFO] [stderr]  --> src/questions/question.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct Formula {
[INFO] [stderr]   |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Expression` is never used
[INFO] [stderr]   --> src/questions/question.rs:11:10
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub enum Expression {
[INFO] [stderr]    |          ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `Value` is never used
[INFO] [stderr]   --> src/questions/question.rs:17:10
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub enum Value {
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `learning-project` (bin "learning-project" test) generated 6 warnings (run `cargo fix --bin "learning-project" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/learning_project-1cda08e756accfed)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "108a07ed430b8975d87b26159eb26684a7aeb9af5b169d158f7759614469825a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "108a07ed430b8975d87b26159eb26684a7aeb9af5b169d158f7759614469825a", kill_on_drop: false }`
[INFO] [stdout] 108a07ed430b8975d87b26159eb26684a7aeb9af5b169d158f7759614469825a
[INFO] testing Tymster/EchoLearning against beta-2023-12-22 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTymster%2FEchoLearning" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tymster/EchoLearning on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Tymster/EchoLearning
[INFO] finished tweaking git repo https://github.com/Tymster/EchoLearning
[INFO] tweaked toml for git repo https://github.com/Tymster/EchoLearning written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Tymster/EchoLearning 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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2db0026a5c04cd999d682af4235d4845306f87ee9296719a657ce17b93503eae
[INFO] running `Command { std: "docker" "start" "-a" "2db0026a5c04cd999d682af4235d4845306f87ee9296719a657ce17b93503eae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2db0026a5c04cd999d682af4235d4845306f87ee9296719a657ce17b93503eae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2db0026a5c04cd999d682af4235d4845306f87ee9296719a657ce17b93503eae", kill_on_drop: false }`
[INFO] [stdout] 2db0026a5c04cd999d682af4235d4845306f87ee9296719a657ce17b93503eae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5545891ee36bf27d6e4580f6bfd057eee7dfdbd6cb6512310739708950145c7b
[INFO] running `Command { std: "docker" "start" "-a" "5545891ee36bf27d6e4580f6bfd057eee7dfdbd6cb6512310739708950145c7b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling memchr v2.6.3
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling smallvec v1.11.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling thiserror v1.0.48
[INFO] [stderr]    Compiling subtle v2.5.0
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling event-listener v2.5.3
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[INFO] [stderr]    Compiling fastrand v1.9.0
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[INFO] [stderr]    Compiling io-lifetimes v1.0.11
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[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling futures-lite v1.13.0
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[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling getrandom v0.1.16
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[INFO] [stderr]    Compiling syn v2.0.35
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[INFO] [stderr]    Compiling time-macros v0.2.14
[INFO] [stderr]    Compiling regex-automata v0.3.8
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling lexical-parse-float v0.8.5
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling lexical-write-float v0.8.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stderr]    Compiling subprocess v0.2.9
[INFO] [stderr]    Compiling aho-corasick v1.0.5
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling darling_core v0.20.3
[INFO] [stderr]    Compiling rust_decimal v1.32.0
[INFO] [stderr]    Compiling infer v0.2.3
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling frunk_proc_macro_helpers v0.1.2
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling crossbeam-queue v0.3.8
[INFO] [stderr]    Compiling deranged v0.3.8
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling lexical-core v0.8.5
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling blake3 v0.3.8
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling priority-queue v1.3.2
[INFO] [stderr]    Compiling metrics v0.18.1
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling regex v1.9.5
[INFO] [stderr]    Compiling time v0.3.28
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling arrayvec v0.7.4
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2023-12-22-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/syn-2.0.35/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit-mut"' -C metadata=41fb00a030965f6a -C extra-filename=-41fb00a030965f6a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-22b5a8c769ad63f3.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-2dd2cbf0f8147b96.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-074c333503047827.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5545891ee36bf27d6e4580f6bfd057eee7dfdbd6cb6512310739708950145c7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5545891ee36bf27d6e4580f6bfd057eee7dfdbd6cb6512310739708950145c7b", kill_on_drop: false }`
[INFO] [stdout] 5545891ee36bf27d6e4580f6bfd057eee7dfdbd6cb6512310739708950145c7b
