Dec 05 01:53:34.360 INFO testing wezm/rust-intro-talk against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 05 01:53:34.360 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 05 01:53:34.870 INFO [stdout] 3b262cd68e1e798a69df20fe5dd9c2dc8925119df6eb33c83ff359f5c04b8bd1
Dec 05 01:53:34.878 INFO running `"docker" "start" "-a" "3b262cd68e1e798a69df20fe5dd9c2dc8925119df6eb33c83ff359f5c04b8bd1"`
Dec 05 01:53:36.186 INFO [stderr] usermod: no changes
Dec 05 01:53:36.384 INFO [stderr]    Compiling pulldown-cmark v0.1.0
Dec 05 01:53:36.384 INFO [stderr]    Compiling bytecount v0.2.0
Dec 05 01:53:36.417 INFO [stderr]    Compiling rand v0.3.19
Dec 05 01:53:36.417 INFO [stderr]    Compiling semver v0.8.0
Dec 05 01:53:36.417 INFO [stderr]    Compiling serde_json v1.0.9
Dec 05 01:53:36.429 INFO [stderr]    Compiling backtrace-sys v0.1.16
Dec 05 01:53:37.108 INFO [stderr]    Compiling backtrace v0.3.5
Dec 05 01:53:39.560 INFO [stderr]    Compiling error-chain v0.11.0
Dec 05 01:53:42.328 INFO [stderr]    Compiling tempdir v0.3.5
Dec 05 01:53:46.489 INFO [stderr]    Compiling cargo_metadata v0.3.3
Dec 05 01:53:49.802 INFO [stderr]    Compiling skeptic v0.13.2
Dec 05 01:53:52.628 INFO [stderr]    Compiling demo v0.1.0 (/source)
Dec 05 01:53:55.148 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.93s
Dec 05 01:53:55.148 INFO [stderr] su: No module specific data is present
Dec 05 01:53:56.257 INFO running `"docker" "inspect" "3b262cd68e1e798a69df20fe5dd9c2dc8925119df6eb33c83ff359f5c04b8bd1"`
Dec 05 01:53:56.574 INFO running `"docker" "rm" "-f" "3b262cd68e1e798a69df20fe5dd9c2dc8925119df6eb33c83ff359f5c04b8bd1"`
Dec 05 01:53:56.846 INFO [stdout] 3b262cd68e1e798a69df20fe5dd9c2dc8925119df6eb33c83ff359f5c04b8bd1
Dec 05 01:53:56.848 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 05 01:53:57.372 INFO [stdout] c5fa4d7ccff25e13fafd4d30558db6ede0ee8443c250ff85277aef6ffab21d52
Dec 05 01:53:57.374 INFO running `"docker" "start" "-a" "c5fa4d7ccff25e13fafd4d30558db6ede0ee8443c250ff85277aef6ffab21d52"`
Dec 05 01:53:58.196 INFO [stderr] usermod: no changes
Dec 05 01:53:58.321 INFO [stderr]    Compiling demo v0.1.0 (/source)
Dec 05 01:54:00.305 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.07s
Dec 05 01:54:00.317 INFO [stderr] su: No module specific data is present
Dec 05 01:54:01.700 INFO running `"docker" "inspect" "c5fa4d7ccff25e13fafd4d30558db6ede0ee8443c250ff85277aef6ffab21d52"`
Dec 05 01:54:02.084 INFO running `"docker" "rm" "-f" "c5fa4d7ccff25e13fafd4d30558db6ede0ee8443c250ff85277aef6ffab21d52"`
Dec 05 01:54:02.535 INFO [stdout] c5fa4d7ccff25e13fafd4d30558db6ede0ee8443c250ff85277aef6ffab21d52
Dec 05 01:54:02.539 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-3/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-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 05 01:54:02.999 INFO [stdout] f9d15a72d2dd213a90971c262121ba13f8585305ad8061dc5ca5536e170d0df7
Dec 05 01:54:03.001 INFO running `"docker" "start" "-a" "f9d15a72d2dd213a90971c262121ba13f8585305ad8061dc5ca5536e170d0df7"`
Dec 05 01:54:04.264 INFO [stderr] usermod: no changes
Dec 05 01:54:04.488 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.17s
Dec 05 01:54:04.488 INFO [stderr]      Running /target/debug/deps/demo-4756bf7aa7eb0094
Dec 05 01:54:04.489 INFO [stdout] 
Dec 05 01:54:04.489 INFO [stdout] running 5 tests
Dec 05 01:54:04.489 INFO [stdout] test test_file_type_html ... ok
Dec 05 01:54:04.489 INFO [stdout] test test_file_type_unknown ... ok
Dec 05 01:54:04.489 INFO [stdout] test test_file_type_toml ... ok
Dec 05 01:54:04.493 INFO [stdout] test test_file_type_rust ... ok
Dec 05 01:54:04.493 INFO [stdout] test test_file_type_missing ... ok
Dec 05 01:54:04.493 INFO [stdout] 
Dec 05 01:54:04.493 INFO [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 01:54:04.493 INFO [stdout] 
Dec 05 01:54:04.504 INFO [stderr]      Running /target/debug/deps/slides-21d9b37130987077
Dec 05 01:54:04.504 INFO [stdout] 
Dec 05 01:54:04.504 INFO [stdout] running 11 tests
Dec 05 01:54:40.420 INFO [stderr] warning: unused variable: `sum`
Dec 05 01:54:40.420 INFO [stderr]  --> /tmp/rust-skeptic.mztMWE4T3H6M/test.rs:7:9
Dec 05 01:54:40.420 INFO [stderr]   |
Dec 05 01:54:40.420 INFO [stderr] 7 |     let sum = add(2, 3);
Dec 05 01:54:40.420 INFO [stderr]   |         ^^^ help: consider using `_sum` instead
Dec 05 01:54:40.420 INFO [stderr]   |
Dec 05 01:54:40.420 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 05 01:54:40.420 INFO [stderr] 
Dec 05 01:54:40.428 INFO [stdout] test slides_in_sect_functions_line_217 ... ok
Dec 05 01:54:41.580 INFO [stdout] Wesley is happy
Dec 05 01:54:41.582 INFO [stdout] test slides_in_sect_conditionals_if_line_231 ... ok
Dec 05 01:54:41.752 INFO [stdout] test slides_in_sect_functional_or_imperative_line_304 ... ok
Dec 05 01:54:41.756 INFO [stderr] warning: enum is never used: `SerialProtocol`
Dec 05 01:54:41.756 INFO [stderr]  --> /tmp/rust-skeptic.sBpx9KPTnUvS/test.rs:2:1
Dec 05 01:54:41.756 INFO [stderr]   |
Dec 05 01:54:41.756 INFO [stderr] 2 | enum SerialProtocol {
Dec 05 01:54:41.756 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^
Dec 05 01:54:41.756 INFO [stderr]   |
Dec 05 01:54:41.756 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 01:54:41.756 INFO [stderr] 
Dec 05 01:54:41.800 INFO [stdout] test slides_in_sect_enums_line_324 ... ok
Dec 05 01:54:41.853 INFO [stdout] test slides_in_sect_functional_or_imperative_line_286 ... ok
Dec 05 01:54:41.982 INFO [stdout] Rust Introduction
Dec 05 01:54:41.988 INFO [stdout] test slides_in_sect_introduction_line_25 ... ok
Dec 05 01:54:42.012 INFO [stdout] test slides_in_sect_conditionals_match_line_248 ... ok
Dec 05 01:54:42.100 INFO [stderr] warning: unused variable: `i`
Dec 05 01:54:42.100 INFO [stderr]  --> /tmp/rust-skeptic.OThZ0ob91lUD/test.rs:5:5
Dec 05 01:54:42.100 INFO [stderr]   |
Dec 05 01:54:42.100 INFO [stderr] 5 | for i in numbers.iter() {
Dec 05 01:54:42.100 INFO [stderr]   |     ^ help: consider using `_i` instead
Dec 05 01:54:42.100 INFO [stderr]   |
Dec 05 01:54:42.100 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Dec 05 01:54:42.100 INFO [stderr] 
Dec 05 01:54:42.100 INFO [stderr] warning: unused variable: `i`
Dec 05 01:54:42.100 INFO [stderr]  --> /tmp/rust-skeptic.OThZ0ob91lUD/test.rs:9:5
Dec 05 01:54:42.100 INFO [stderr]   |
Dec 05 01:54:42.100 INFO [stderr] 9 | for i in 0..10 {
Dec 05 01:54:42.100 INFO [stderr]   |     ^ help: consider using `_i` instead
Dec 05 01:54:42.100 INFO [stderr] 
Dec 05 01:54:42.135 INFO [stdout] test slides_in_sect_loops_line_268 ... ok
Dec 05 01:54:55.820 INFO [stderr] warning: enum is never used: `Option`
Dec 05 01:54:55.820 INFO [stderr]  --> /tmp/rust-skeptic.vvRMhQOsx0Ki/test.rs:2:1
Dec 05 01:54:55.820 INFO [stderr]   |
Dec 05 01:54:55.820 INFO [stderr] 2 | enum Option<T> {
Dec 05 01:54:55.820 INFO [stderr]   | ^^^^^^^^^^^^^^
Dec 05 01:54:55.820 INFO [stderr]   |
Dec 05 01:54:55.820 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 01:54:55.820 INFO [stderr] 
Dec 05 01:54:55.827 INFO [stdout] test slides_in_sect_option_line_362 ... ok
Dec 05 01:54:56.443 INFO [stderr] warning: enum is never used: `SerialProtocol`
Dec 05 01:54:56.443 INFO [stderr]  --> /tmp/rust-skeptic.b78BClnnOvry/test.rs:2:1
Dec 05 01:54:56.443 INFO [stderr]   |
Dec 05 01:54:56.443 INFO [stderr] 2 | enum SerialProtocol {
Dec 05 01:54:56.443 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^
Dec 05 01:54:56.443 INFO [stderr]   |
Dec 05 01:54:56.443 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 01:54:56.443 INFO [stderr] 
Dec 05 01:54:56.443 INFO [stderr] warning: struct is never constructed: `Person`
Dec 05 01:54:56.443 INFO [stderr]   --> /tmp/rust-skeptic.b78BClnnOvry/test.rs:10:1
Dec 05 01:54:56.443 INFO [stderr]    |
Dec 05 01:54:56.443 INFO [stderr] 10 | struct Person {
Dec 05 01:54:56.443 INFO [stderr]    | ^^^^^^^^^^^^^
Dec 05 01:54:56.443 INFO [stderr] 
Dec 05 01:54:56.443 INFO [stderr] warning: method is never used: `name_and_age`
Dec 05 01:54:56.443 INFO [stderr]   --> /tmp/rust-skeptic.b78BClnnOvry/test.rs:17:5
Dec 05 01:54:56.443 INFO [stderr]    |
Dec 05 01:54:56.443 INFO [stderr] 17 |     fn name_and_age(&self) -> String {
Dec 05 01:54:56.443 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 01:54:56.443 INFO [stderr] 
Dec 05 01:54:56.448 INFO [stdout] test slides_in_sect_structs_line_340 ... ok
Dec 05 01:54:56.472 INFO [stderr] warning: enum is never used: `Result`
Dec 05 01:54:56.472 INFO [stderr]  --> /tmp/rust-skeptic.dcuHgBeBKFFm/test.rs:2:1
Dec 05 01:54:56.472 INFO [stderr]   |
Dec 05 01:54:56.472 INFO [stderr] 2 | enum Result<T, E> {
Dec 05 01:54:56.472 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 05 01:54:56.472 INFO [stderr]   |
Dec 05 01:54:56.472 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 01:54:56.472 INFO [stderr] 
Dec 05 01:54:56.479 INFO [stdout] test slides_in_sect_result_line_377 ... ok
Dec 05 01:54:56.479 INFO [stdout] 
Dec 05 01:54:56.479 INFO [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 01:54:56.479 INFO [stdout] 
Dec 05 01:54:56.484 INFO [stderr] su: No module specific data is present
Dec 05 01:54:57.657 INFO running `"docker" "inspect" "f9d15a72d2dd213a90971c262121ba13f8585305ad8061dc5ca5536e170d0df7"`
Dec 05 01:54:58.018 INFO running `"docker" "rm" "-f" "f9d15a72d2dd213a90971c262121ba13f8585305ad8061dc5ca5536e170d0df7"`
Dec 05 01:54:58.395 INFO [stdout] f9d15a72d2dd213a90971c262121ba13f8585305ad8061dc5ca5536e170d0df7