[INFO] cloning repository https://github.com/wezm/rust-intro-talk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wezm/rust-intro-talk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwezm%2Frust-intro-talk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwezm%2Frust-intro-talk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 978872c31d714aa413ee86a7c6b5ccdbc8966caa
[INFO] testing wezm/rust-intro-talk against 1.64.0 for beta-1.65-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwezm%2Frust-intro-talk" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wezm/rust-intro-talk on toolchain 1.64.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.64.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wezm/rust-intro-talk
[INFO] finished tweaking git repo https://github.com/wezm/rust-intro-talk
[INFO] tweaked toml for git repo https://github.com/wezm/rust-intro-talk written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/wezm/rust-intro-talk already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.64.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded winapi v0.2.8
[INFO] [stderr]   Downloaded bytecount v0.2.0
[INFO] [stderr]   Downloaded synom v0.11.3
[INFO] [stderr]   Downloaded winapi-build v0.1.1
[INFO] [stderr]   Downloaded bitflags v1.0.1
[INFO] [stderr]   Downloaded fuchsia-zircon-sys v0.3.2
[INFO] [stderr]   Downloaded fuchsia-zircon v0.3.2
[INFO] [stderr]   Downloaded cfg-if v0.1.2
[INFO] [stderr]   Downloaded bitflags v0.9.1
[INFO] [stderr]   Downloaded pulldown-cmark v0.1.0
[INFO] [stderr]   Downloaded cargo_metadata v0.3.3
[INFO] [stderr]   Downloaded dtoa v0.4.2
[INFO] [stderr]   Downloaded semver v0.8.0
[INFO] [stderr]   Downloaded rustc-demangle v0.1.5
[INFO] [stderr]   Downloaded backtrace v0.3.5
[INFO] [stderr]   Downloaded serde_derive_internals v0.19.0
[INFO] [stderr]   Downloaded serde_derive v1.0.27
[INFO] [stderr]   Downloaded num-traits v0.1.41
[INFO] [stderr]   Downloaded backtrace-sys v0.1.16
[INFO] [stderr]   Downloaded serde v1.0.27
[INFO] [stderr]   Downloaded same-file v0.1.3
[INFO] [stderr]   Downloaded walkdir v1.0.7
[INFO] [stderr]   Downloaded winapi v0.3.3
[INFO] [stderr]   Downloaded syn v0.11.11
[INFO] [stderr]   Downloaded error-chain v0.11.0
[INFO] [stderr]   Downloaded winapi-i686-pc-windows-gnu v0.3.2
[INFO] [stderr]   Downloaded glob v0.2.11
[INFO] [stderr]   Downloaded winapi-x86_64-pc-windows-gnu v0.3.2
[INFO] [stderr]   Downloaded itoa v0.3.4
[INFO] [stderr]   Downloaded cc v1.0.3
[INFO] [stderr]   Downloaded serde_json v1.0.9
[INFO] [stderr]   Downloaded libc v0.2.35
[INFO] [stderr]   Downloaded rand v0.3.19
[INFO] [stderr]   Downloaded tempdir v0.3.5
[INFO] [stderr]   Downloaded kernel32-sys v0.2.2
[INFO] [stderr]   Downloaded skeptic v0.13.2
[INFO] [stderr]   Downloaded quote v0.3.15
[INFO] [stderr]   Downloaded unicode-xid v0.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6767a8c30c7745ad6916427cea5e1d25fcf6050b007ae6133623848af3a67272
[INFO] running `Command { std: "docker" "start" "-a" "6767a8c30c7745ad6916427cea5e1d25fcf6050b007ae6133623848af3a67272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6767a8c30c7745ad6916427cea5e1d25fcf6050b007ae6133623848af3a67272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6767a8c30c7745ad6916427cea5e1d25fcf6050b007ae6133623848af3a67272", kill_on_drop: false }`
[INFO] [stdout] 6767a8c30c7745ad6916427cea5e1d25fcf6050b007ae6133623848af3a67272
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2164a0a5d1437648d60f7f84fd4939fa8f1582c3df30df365d1fd45aa077486f
[INFO] running `Command { std: "docker" "start" "-a" "2164a0a5d1437648d60f7f84fd4939fa8f1582c3df30df365d1fd45aa077486f", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.3
[INFO] [stderr]    Compiling libc v0.2.35
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling serde v1.0.27
[INFO] [stderr]    Compiling rustc-demangle v0.1.5
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling num-traits v0.1.41
[INFO] [stderr]    Compiling pulldown-cmark v0.1.0
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling same-file v0.1.3
[INFO] [stderr]    Compiling bitflags v0.9.1
[INFO] [stderr]    Compiling bytecount v0.2.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling walkdir v1.0.7
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling rand v0.3.19
[INFO] [stderr]    Compiling tempdir v0.3.5
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling semver v0.8.0
[INFO] [stderr]    Compiling serde_json v1.0.9
[INFO] [stderr]    Compiling serde_derive v1.0.27
[INFO] [stderr]    Compiling backtrace v0.3.5
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling cargo_metadata v0.3.3
[INFO] [stderr]    Compiling skeptic v0.13.2
[INFO] [stderr]    Compiling demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.35s
[INFO] running `Command { std: "docker" "inspect" "2164a0a5d1437648d60f7f84fd4939fa8f1582c3df30df365d1fd45aa077486f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2164a0a5d1437648d60f7f84fd4939fa8f1582c3df30df365d1fd45aa077486f", kill_on_drop: false }`
[INFO] [stdout] 2164a0a5d1437648d60f7f84fd4939fa8f1582c3df30df365d1fd45aa077486f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3161f8e05022bb3aad15ec2648120b3ae1166d125b635044acc419dbb632e18f
[INFO] running `Command { std: "docker" "start" "-a" "3161f8e05022bb3aad15ec2648120b3ae1166d125b635044acc419dbb632e18f", kill_on_drop: false }`
[INFO] [stderr]    Compiling demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "3161f8e05022bb3aad15ec2648120b3ae1166d125b635044acc419dbb632e18f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3161f8e05022bb3aad15ec2648120b3ae1166d125b635044acc419dbb632e18f", kill_on_drop: false }`
[INFO] [stdout] 3161f8e05022bb3aad15ec2648120b3ae1166d125b635044acc419dbb632e18f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e914e175f4c919e7cc466a9be86b9a5375df67e0555a8e85e9a265d512491a7e
[INFO] running `Command { std: "docker" "start" "-a" "e914e175f4c919e7cc466a9be86b9a5375df67e0555a8e85e9a265d512491a7e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/demo-818d8f2b8af0c489)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test_file_type_missing ... ok
[INFO] [stdout] test test_file_type_rust ... ok
[INFO] [stdout] test test_file_type_toml ... ok
[INFO] [stdout] test test_file_type_html ... ok
[INFO] [stdout] test test_file_type_unknown ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/slides.rs (/opt/rustwide/target/debug/deps/slides-dfe52609188b7097)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] Wesley is happy
[INFO] [stdout] test slides_in_sect_conditionals_if_line_231 ... ok
[INFO] [stdout] Rust Introduction
[INFO] [stdout] test slides_in_sect_introduction_line_25 ... ok
[INFO] [stderr] warning: enum `SerialProtocol` is never used
[INFO] [stderr]  --> /tmp/rust-skeptic.hj067WEWvnBN/test.rs:2:6
[INFO] [stderr]   |
[INFO] [stderr] 2 | enum SerialProtocol {
[INFO] [stderr]   |      ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] test slides_in_sect_enums_line_324 ... ok
[INFO] [stdout] test slides_in_sect_functional_or_imperative_line_304 ... ok
[INFO] [stderr] warning: enum `Result` is never used
[INFO] [stderr]  --> /tmp/rust-skeptic.LtIisXMsB6P4/test.rs:2:6
[INFO] [stderr]   |
[INFO] [stderr] 2 | enum Result<T, E> {
[INFO] [stderr]   |      ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sum`
[INFO] [stderr]  --> /tmp/rust-skeptic.Ytj3pwTbt7KT/test.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let sum = add(2, 3);
[INFO] [stderr]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_sum`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] test slides_in_sect_result_line_377 ... ok
[INFO] [stdout] test slides_in_sect_functions_line_217 ... ok
[INFO] [stderr] warning: enum `Option` is never used
[INFO] [stderr]  --> /tmp/rust-skeptic.Y2JCbYwhPeB6/test.rs:2:6
[INFO] [stderr]   |
[INFO] [stderr] 2 | enum Option<T> {
[INFO] [stderr]   |      ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] test slides_in_sect_option_line_362 ... ok
[INFO] [stdout] test slides_in_sect_conditionals_match_line_248 ... ok
[INFO] [stdout] test slides_in_sect_functional_or_imperative_line_286 ... ok
[INFO] [stderr] warning: enum `SerialProtocol` is never used
[INFO] [stderr]  --> /tmp/rust-skeptic.zKRfGu9FaFLG/test.rs:2:6
[INFO] [stderr]   |
[INFO] [stderr] 2 | enum SerialProtocol {
[INFO] [stderr]   |      ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Person` is never constructed
[INFO] [stderr]   --> /tmp/rust-skeptic.zKRfGu9FaFLG/test.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | struct Person {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `name_and_age` is never used
[INFO] [stderr]   --> /tmp/rust-skeptic.zKRfGu9FaFLG/test.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 17 |     fn name_and_age(&self) -> String {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] test slides_in_sect_structs_line_340 ... ok
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]  --> /tmp/rust-skeptic.6PEcSH60S2aR/test.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | for i in numbers.iter() {
[INFO] [stderr]   |     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]  --> /tmp/rust-skeptic.6PEcSH60S2aR/test.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | for i in 0..10 {
[INFO] [stderr]   |     ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] test slides_in_sect_loops_line_268 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 11.89s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e914e175f4c919e7cc466a9be86b9a5375df67e0555a8e85e9a265d512491a7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e914e175f4c919e7cc466a9be86b9a5375df67e0555a8e85e9a265d512491a7e", kill_on_drop: false }`
[INFO] [stdout] e914e175f4c919e7cc466a9be86b9a5375df67e0555a8e85e9a265d512491a7e