[INFO] fetching crate rust-tour 0.1.17...
[INFO] testing rust-tour-0.1.17 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-2
[INFO] extracting crate rust-tour 0.1.17 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate rust-tour 0.1.17
[INFO] finished tweaking crates.io crate rust-tour 0.1.17
[INFO] tweaked toml for crates.io crate rust-tour 0.1.17 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust-tour 0.1.17 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rust-tour 0.1.17 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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f36078a6577b547953dc01b519731ba3c42d6ef24cc43a6dfcf8ebf07b03cf5
[INFO] running `Command { std: "docker" "start" "-a" "6f36078a6577b547953dc01b519731ba3c42d6ef24cc43a6dfcf8ebf07b03cf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f36078a6577b547953dc01b519731ba3c42d6ef24cc43a6dfcf8ebf07b03cf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f36078a6577b547953dc01b519731ba3c42d6ef24cc43a6dfcf8ebf07b03cf5", kill_on_drop: false }`
[INFO] [stdout] 6f36078a6577b547953dc01b519731ba3c42d6ef24cc43a6dfcf8ebf07b03cf5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75b1840f8a088e43b0f434d5c9a85dd7c1e7c378f5ebb1d684035c0da7acc26e
[INFO] running `Command { std: "docker" "start" "-a" "75b1840f8a088e43b0f434d5c9a85dd7c1e7c378f5ebb1d684035c0da7acc26e", kill_on_drop: false }`
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[INFO] [stderr] warning: rust-tour@0.1.17: Using pre-copied assets for packaging
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[INFO] [stderr]    Compiling uuid v1.17.0
[INFO] [stderr]    Compiling tower v0.4.13
[INFO] [stderr]    Compiling git2 v0.19.0
[INFO] [stdout] warning: field `session_id` is never read
[INFO] [stdout]    --> src/main.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 107 | struct TerminalSession {
[INFO] [stdout]     |        --------------- field in this struct
[INFO] [stdout] 108 |     session_id: String,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TerminalSession` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `error` is never used
[INFO] [stdout]    --> src/main.rs:398:8
[INFO] [stdout]     |
[INFO] [stdout] 377 | impl<T> ApiResponse<T> {
[INFO] [stdout]     | ---------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 398 |     fn error(message: String) -> ApiResponse<()> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_total_exercises` is never used
[INFO] [stdout]     --> src/main.rs:1901:10
[INFO] [stdout]      |
[INFO] [stdout] 1901 | async fn count_total_exercises(exercises_path: &std::path::Path) -> anyhow::Result<u32> {
[INFO] [stdout]      |          ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:619:5
[INFO] [stdout]     |
[INFO] [stdout] 619 |     cleanup_terminal_sessions(&state, connection_id).await;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 619 |     let _ = cleanup_terminal_sessions(&state, connection_id).await;
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6m 06s
[INFO] running `Command { std: "docker" "inspect" "75b1840f8a088e43b0f434d5c9a85dd7c1e7c378f5ebb1d684035c0da7acc26e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75b1840f8a088e43b0f434d5c9a85dd7c1e7c378f5ebb1d684035c0da7acc26e", kill_on_drop: false }`
[INFO] [stdout] 75b1840f8a088e43b0f434d5c9a85dd7c1e7c378f5ebb1d684035c0da7acc26e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15d06c38f31145ba59bda2e1542134330487e84fa5f3383315979de976072f1b
[INFO] running `Command { std: "docker" "start" "-a" "15d06c38f31145ba59bda2e1542134330487e84fa5f3383315979de976072f1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-tour v0.1.17 (/opt/rustwide/workdir)
[INFO] [stderr] warning: rust-tour@0.1.17: Using pre-copied assets for packaging
[INFO] [stdout] warning: field `session_id` is never read
[INFO] [stdout]    --> src/main.rs:108:5
[INFO] [stdout]     |
[INFO] [stdout] 107 | struct TerminalSession {
[INFO] [stdout]     |        --------------- field in this struct
[INFO] [stdout] 108 |     session_id: String,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TerminalSession` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `error` is never used
[INFO] [stdout]    --> src/main.rs:398:8
[INFO] [stdout]     |
[INFO] [stdout] 377 | impl<T> ApiResponse<T> {
[INFO] [stdout]     | ---------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 398 |     fn error(message: String) -> ApiResponse<()> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_total_exercises` is never used
[INFO] [stdout]     --> src/main.rs:1901:10
[INFO] [stdout]      |
[INFO] [stdout] 1901 | async fn count_total_exercises(exercises_path: &std::path::Path) -> anyhow::Result<u32> {
[INFO] [stdout]      |          ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:619:5
[INFO] [stdout]     |
[INFO] [stdout] 619 |     cleanup_terminal_sessions(&state, connection_id).await;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 619 |     let _ = cleanup_terminal_sessions(&state, connection_id).await;
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.39s
[INFO] running `Command { std: "docker" "inspect" "15d06c38f31145ba59bda2e1542134330487e84fa5f3383315979de976072f1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15d06c38f31145ba59bda2e1542134330487e84fa5f3383315979de976072f1b", kill_on_drop: false }`
[INFO] [stdout] 15d06c38f31145ba59bda2e1542134330487e84fa5f3383315979de976072f1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 40ef07b99cff8d4356e66fd7a1b8b0f80c482967ebf799321d584e0f3933eff7
[INFO] running `Command { std: "docker" "start" "-a" "40ef07b99cff8d4356e66fd7a1b8b0f80c482967ebf799321d584e0f3933eff7", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-tour v0.1.17 (/opt/rustwide/workdir)
[INFO] [stderr] warning: rust-tour@0.1.17: Using pre-copied assets for packaging
[INFO] [stderr] warning: field `session_id` is never read
[INFO] [stderr]    --> src/main.rs:108:5
[INFO] [stderr]     |
[INFO] [stderr] 107 | struct TerminalSession {
[INFO] [stderr]     |        --------------- field in this struct
[INFO] [stderr] 108 |     session_id: String,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `TerminalSession` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `error` is never used
[INFO] [stderr]    --> src/main.rs:398:8
[INFO] [stderr]     |
[INFO] [stderr] 377 | impl<T> ApiResponse<T> {
[INFO] [stderr]     | ---------------------- associated function in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 398 |     fn error(message: String) -> ApiResponse<()> {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `count_total_exercises` is never used
[INFO] [stderr]     --> src/main.rs:1901:10
[INFO] [stderr]      |
[INFO] [stderr] 1901 | async fn count_total_exercises(exercises_path: &std::path::Path) -> anyhow::Result<u32> {
[INFO] [stderr]      |          ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/main.rs:619:5
[INFO] [stderr]     |
[INFO] [stderr] 619 |     cleanup_terminal_sessions(&state, connection_id).await;
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 619 |     let _ = cleanup_terminal_sessions(&state, connection_id).await;
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-tour` (bin "rust-tour" test) generated 4 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.86s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_tour-3e204c99ab08bf2f)
[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" "40ef07b99cff8d4356e66fd7a1b8b0f80c482967ebf799321d584e0f3933eff7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40ef07b99cff8d4356e66fd7a1b8b0f80c482967ebf799321d584e0f3933eff7", kill_on_drop: false }`
[INFO] [stdout] 40ef07b99cff8d4356e66fd7a1b8b0f80c482967ebf799321d584e0f3933eff7
