Dec 12 21:26:12.244 INFO testing wezm/rust-intro-talk against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 12 21:26:12.244 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 21:26:12.572 INFO [stdout] 0280e91bbb713d77d4729bfe365b0e8b82875d66ab33259dc74009f017d5c870
Dec 12 21:26:12.578 INFO running `"docker" "start" "-a" "0280e91bbb713d77d4729bfe365b0e8b82875d66ab33259dc74009f017d5c870"`
Dec 12 21:26:13.486 INFO [stderr] usermod: no changes
Dec 12 21:26:13.603 INFO [stderr]    Compiling cc v1.0.3
Dec 12 21:26:13.603 INFO [stderr]    Compiling libc v0.2.35
Dec 12 21:26:13.603 INFO [stderr]    Compiling rustc-demangle v0.1.5
Dec 12 21:26:13.612 INFO [stderr]    Compiling num-traits v0.1.41
Dec 12 21:26:13.612 INFO [stderr]    Compiling serde v1.0.27
Dec 12 21:26:13.612 INFO [stderr]    Compiling pulldown-cmark v0.1.0
Dec 12 21:26:13.612 INFO [stderr]    Compiling serde_derive_internals v0.19.0
Dec 12 21:26:16.327 INFO [stderr]    Compiling rand v0.3.19
Dec 12 21:26:22.519 INFO [stderr]    Compiling serde_derive v1.0.27
Dec 12 21:26:23.291 INFO [stderr]    Compiling backtrace-sys v0.1.16
Dec 12 21:26:27.748 INFO [stderr]    Compiling tempdir v0.3.5
Dec 12 21:26:48.103 INFO [stderr]    Compiling backtrace v0.3.5
Dec 12 21:26:48.990 INFO [stderr]    Compiling semver v0.8.0
Dec 12 21:26:48.990 INFO [stderr]    Compiling serde_json v1.0.9
Dec 12 21:26:49.955 INFO [stderr]    Compiling error-chain v0.11.0
Dec 12 21:26:55.000 INFO [stderr]    Compiling cargo_metadata v0.3.3
Dec 12 21:26:58.397 INFO [stderr]    Compiling skeptic v0.13.2
Dec 12 21:27:01.415 INFO [stderr]    Compiling demo v0.1.0 (/source)
Dec 12 21:27:03.931 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.42s
Dec 12 21:27:03.938 INFO [stderr] su: No module specific data is present
Dec 12 21:27:05.187 INFO running `"docker" "inspect" "0280e91bbb713d77d4729bfe365b0e8b82875d66ab33259dc74009f017d5c870"`
Dec 12 21:27:05.575 INFO running `"docker" "rm" "-f" "0280e91bbb713d77d4729bfe365b0e8b82875d66ab33259dc74009f017d5c870"`
Dec 12 21:27:05.943 INFO [stdout] 0280e91bbb713d77d4729bfe365b0e8b82875d66ab33259dc74009f017d5c870
Dec 12 21:27:05.945 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 21:27:06.388 INFO [stdout] d29590721f176ac5ece6791ef6c0a4b616e7868ec6f21cc20f7cf7c587d806ab
Dec 12 21:27:06.395 INFO running `"docker" "start" "-a" "d29590721f176ac5ece6791ef6c0a4b616e7868ec6f21cc20f7cf7c587d806ab"`
Dec 12 21:27:08.366 INFO [stderr] usermod: no changes
Dec 12 21:27:08.507 INFO [stderr]    Compiling demo v0.1.0 (/source)
Dec 12 21:27:10.592 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.19s
Dec 12 21:27:10.605 INFO [stderr] su: No module specific data is present
Dec 12 21:27:11.735 INFO running `"docker" "inspect" "d29590721f176ac5ece6791ef6c0a4b616e7868ec6f21cc20f7cf7c587d806ab"`
Dec 12 21:27:12.005 INFO running `"docker" "rm" "-f" "d29590721f176ac5ece6791ef6c0a4b616e7868ec6f21cc20f7cf7c587d806ab"`
Dec 12 21:27:12.358 INFO [stdout] d29590721f176ac5ece6791ef6c0a4b616e7868ec6f21cc20f7cf7c587d806ab
Dec 12 21:27:12.361 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 21:27:12.913 INFO [stdout] a37284f0870c8316968023e4f070eebf69f0bdac56dc6b7666197ed583e7833b
Dec 12 21:27:12.916 INFO running `"docker" "start" "-a" "a37284f0870c8316968023e4f070eebf69f0bdac56dc6b7666197ed583e7833b"`
Dec 12 21:27:14.607 INFO [stderr] usermod: no changes
Dec 12 21:27:14.767 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
Dec 12 21:27:14.770 INFO [stderr]      Running /target/debug/deps/demo-eb73e6209b5fdee8
Dec 12 21:27:14.775 INFO [stdout] 
Dec 12 21:27:14.775 INFO [stdout] running 5 tests
Dec 12 21:27:14.775 INFO [stdout] test test_file_type_unknown ... ok
Dec 12 21:27:14.775 INFO [stdout] test test_file_type_toml ... ok
Dec 12 21:27:14.775 INFO [stdout] test test_file_type_rust ... ok
Dec 12 21:27:14.775 INFO [stdout] test test_file_type_html ... ok
Dec 12 21:27:14.775 INFO [stdout] test test_file_type_missing ... ok
Dec 12 21:27:14.775 INFO [stdout] 
Dec 12 21:27:14.775 INFO [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 12 21:27:14.775 INFO [stdout] 
Dec 12 21:27:14.783 INFO [stderr]      Running /target/debug/deps/slides-18d95beac60b9e2c
Dec 12 21:27:14.787 INFO [stdout] 
Dec 12 21:27:14.787 INFO [stdout] running 11 tests
Dec 12 21:27:52.972 INFO [stdout] Rust Introduction
Dec 12 21:27:52.974 INFO [stdout] test slides_in_sect_introduction_line_25 ... ok
Dec 12 21:27:53.254 INFO [stderr] warning: unused variable: `i`
Dec 12 21:27:53.254 INFO [stderr]  --> /tmp/rust-skeptic.6wwMWjYgCink/test.rs:5:5
Dec 12 21:27:53.254 INFO [stderr]   |
Dec 12 21:27:53.254 INFO [stderr] 5 | for i in numbers.iter() {
Dec 12 21:27:53.254 INFO [stderr]   |     ^ help: consider using `_i` instead
Dec 12 21:27:53.254 INFO [stderr]   |
Dec 12 21:27:53.254 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 12 21:27:53.254 INFO [stderr] 
Dec 12 21:27:53.254 INFO [stderr] warning: unused variable: `i`
Dec 12 21:27:53.254 INFO [stderr]  --> /tmp/rust-skeptic.6wwMWjYgCink/test.rs:9:5
Dec 12 21:27:53.254 INFO [stderr]   |
Dec 12 21:27:53.254 INFO [stderr] 9 | for i in 0..10 {
Dec 12 21:27:53.254 INFO [stderr]   |     ^ help: consider using `_i` instead
Dec 12 21:27:53.254 INFO [stderr] 
Dec 12 21:27:53.319 INFO [stdout] test slides_in_sect_loops_line_268 ... ok
Dec 12 21:27:53.328 INFO [stdout] test slides_in_sect_functional_or_imperative_line_304 ... ok
Dec 12 21:27:53.387 INFO [stdout] test slides_in_sect_conditionals_match_line_248 ... ok
Dec 12 21:27:53.389 INFO [stdout] Wesley is happy
Dec 12 21:27:53.391 INFO [stdout] test slides_in_sect_conditionals_if_line_231 ... ok
Dec 12 21:27:53.614 INFO [stdout] test slides_in_sect_functional_or_imperative_line_286 ... ok
Dec 12 21:27:53.671 INFO [stderr] warning: unused variable: `sum`
Dec 12 21:27:53.671 INFO [stderr]  --> /tmp/rust-skeptic.YC9Qasdl3FWl/test.rs:7:9
Dec 12 21:27:53.671 INFO [stderr]   |
Dec 12 21:27:53.671 INFO [stderr] 7 |     let sum = add(2, 3);
Dec 12 21:27:53.671 INFO [stderr]   |         ^^^ help: consider using `_sum` instead
Dec 12 21:27:53.671 INFO [stderr]   |
Dec 12 21:27:53.671 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 12 21:27:53.671 INFO [stderr] 
Dec 12 21:27:53.683 INFO [stdout] test slides_in_sect_functions_line_217 ... ok
Dec 12 21:27:53.697 INFO [stderr] warning: enum is never used: `SerialProtocol`
Dec 12 21:27:53.697 INFO [stderr]  --> /tmp/rust-skeptic.3Eu1y1UFfFAM/test.rs:2:1
Dec 12 21:27:53.697 INFO [stderr]   |
Dec 12 21:27:53.697 INFO [stderr] 2 | enum SerialProtocol {
Dec 12 21:27:53.697 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^
Dec 12 21:27:53.697 INFO [stderr]   |
Dec 12 21:27:53.697 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 21:27:53.697 INFO [stderr] 
Dec 12 21:27:53.731 INFO [stdout] test slides_in_sect_enums_line_324 ... ok
Dec 12 21:28:07.291 INFO [stderr] warning: enum is never used: `Result`
Dec 12 21:28:07.291 INFO [stderr]  --> /tmp/rust-skeptic.VrDzVVmE9lkJ/test.rs:2:1
Dec 12 21:28:07.291 INFO [stderr]   |
Dec 12 21:28:07.291 INFO [stderr] 2 | enum Result<T, E> {
Dec 12 21:28:07.291 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 12 21:28:07.291 INFO [stderr]   |
Dec 12 21:28:07.291 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 21:28:07.291 INFO [stderr] 
Dec 12 21:28:07.315 INFO [stdout] test slides_in_sect_result_line_377 ... ok
Dec 12 21:28:07.579 INFO [stderr] warning: enum is never used: `Option`
Dec 12 21:28:07.579 INFO [stderr]  --> /tmp/rust-skeptic.l1NeKIjXNCh8/test.rs:2:1
Dec 12 21:28:07.579 INFO [stderr]   |
Dec 12 21:28:07.579 INFO [stderr] 2 | enum Option<T> {
Dec 12 21:28:07.579 INFO [stderr]   | ^^^^^^^^^^^^^^
Dec 12 21:28:07.579 INFO [stderr]   |
Dec 12 21:28:07.579 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 21:28:07.579 INFO [stderr] 
Dec 12 21:28:07.585 INFO [stdout] test slides_in_sect_option_line_362 ... ok
Dec 12 21:28:07.676 INFO [stderr] warning: enum is never used: `SerialProtocol`
Dec 12 21:28:07.676 INFO [stderr]  --> /tmp/rust-skeptic.7v4Pjb0PUzqn/test.rs:2:1
Dec 12 21:28:07.676 INFO [stderr]   |
Dec 12 21:28:07.676 INFO [stderr] 2 | enum SerialProtocol {
Dec 12 21:28:07.676 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^
Dec 12 21:28:07.676 INFO [stderr]   |
Dec 12 21:28:07.676 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 21:28:07.676 INFO [stderr] 
Dec 12 21:28:07.676 INFO [stderr] warning: struct is never constructed: `Person`
Dec 12 21:28:07.676 INFO [stderr]   --> /tmp/rust-skeptic.7v4Pjb0PUzqn/test.rs:10:1
Dec 12 21:28:07.676 INFO [stderr]    |
Dec 12 21:28:07.676 INFO [stderr] 10 | struct Person {
Dec 12 21:28:07.676 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 12 21:28:07.676 INFO [stderr] 
Dec 12 21:28:07.676 INFO [stderr] warning: method is never used: `name_and_age`
Dec 12 21:28:07.676 INFO [stderr]   --> /tmp/rust-skeptic.7v4Pjb0PUzqn/test.rs:17:5
Dec 12 21:28:07.676 INFO [stderr]    |
Dec 12 21:28:07.676 INFO [stderr] 17 |     fn name_and_age(&self) -> String {
Dec 12 21:28:07.676 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 21:28:07.676 INFO [stderr] 
Dec 12 21:28:07.679 INFO [stdout] test slides_in_sect_structs_line_340 ... ok
Dec 12 21:28:07.679 INFO [stdout] 
Dec 12 21:28:07.679 INFO [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 12 21:28:07.679 INFO [stdout] 
Dec 12 21:28:07.695 INFO [stderr] su: No module specific data is present
Dec 12 21:28:09.289 INFO running `"docker" "inspect" "a37284f0870c8316968023e4f070eebf69f0bdac56dc6b7666197ed583e7833b"`
Dec 12 21:28:09.611 INFO running `"docker" "rm" "-f" "a37284f0870c8316968023e4f070eebf69f0bdac56dc6b7666197ed583e7833b"`
Dec 12 21:28:09.923 INFO [stdout] a37284f0870c8316968023e4f070eebf69f0bdac56dc6b7666197ed583e7833b