[INFO] updating cached repository davidpdrsn/oops-lang
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/davidpdrsn/oops-lang
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/davidpdrsn/oops-lang" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/davidpdrsn/oops-lang"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/davidpdrsn/oops-lang'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/davidpdrsn/oops-lang" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/davidpdrsn/oops-lang"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/davidpdrsn/oops-lang'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9ddd382d00ae7fcc3b2bcb4de1054265b9fcd0f5
[INFO] sha for GitHub repo davidpdrsn/oops-lang: 9ddd382d00ae7fcc3b2bcb4de1054265b9fcd0f5
[INFO] validating manifest of davidpdrsn/oops-lang on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of davidpdrsn/oops-lang on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing davidpdrsn/oops-lang
[INFO] finished frobbing davidpdrsn/oops-lang
[INFO] frobbed toml for davidpdrsn/oops-lang written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/davidpdrsn/oops-lang/Cargo.toml
[INFO] started frobbing davidpdrsn/oops-lang
[INFO] finished frobbing davidpdrsn/oops-lang
[INFO] frobbed toml for davidpdrsn/oops-lang written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/davidpdrsn/oops-lang/Cargo.toml
[INFO] crate davidpdrsn/oops-lang already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking davidpdrsn/oops-lang against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-6/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/davidpdrsn/oops-lang:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c6625b6873b885b12ef1bc7f3636708da436a8f5bafdc6f951697b25e28b1ea5
[INFO] running `"docker" "start" "-a" "c6625b6873b885b12ef1bc7f3636708da436a8f5bafdc6f951697b25e28b1ea5"`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling syn v0.15.40
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking ucd-util v0.1.5
[INFO] [stderr]     Checking regex-syntax v0.6.10
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking regex v1.2.0
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking oops v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/error.rs:170:1
[INFO] [stderr]     |
[INFO] [stderr] 170 | / macro_rules! assert_error {
[INFO] [stderr] 171 | |     ($result:expr, $pat:pat) => {
[INFO] [stderr] 172 | |         match $result {
[INFO] [stderr] 173 | |             Err($pat) => {}
[INFO] [stderr] ...   |
[INFO] [stderr] 176 | |     };
[INFO] [stderr] 177 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Field`
[INFO] [stderr]  --> src/interpret/mod.rs:1:32
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::prep::{self, Class, Field};
[INFO] [stderr]   |                                ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hash_map::Keys`
[INFO] [stderr]  --> src/interpret/mod.rs:8:19
[INFO] [stderr]   |
[INFO] [stderr] 8 |     collections::{hash_map::Keys, HashMap},
[INFO] [stderr]   |                   ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ClassVTable`
[INFO] [stderr]  --> src/prep/mod.rs:5:17
[INFO] [stderr]   |
[INFO] [stderr] 5 |     interpret::{ClassVTable, VTable},
[INFO] [stderr]   |                 ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/error.rs:170:1
[INFO] [stderr]     |
[INFO] [stderr] 170 | / macro_rules! assert_error {
[INFO] [stderr] 171 | |     ($result:expr, $pat:pat) => {
[INFO] [stderr] 172 | |         match $result {
[INFO] [stderr] 173 | |             Err($pat) => {}
[INFO] [stderr] ...   |
[INFO] [stderr] 176 | |     };
[INFO] [stderr] 177 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Field`
[INFO] [stderr]  --> src/interpret/mod.rs:1:32
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::prep::{self, Class, Field};
[INFO] [stderr]   |                                ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `hash_map::Keys`
[INFO] [stderr]  --> src/interpret/mod.rs:8:19
[INFO] [stderr]   |
[INFO] [stderr] 8 |     collections::{hash_map::Keys, HashMap},
[INFO] [stderr]   |                   ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ClassVTable`
[INFO] [stderr]  --> src/prep/mod.rs:5:17
[INFO] [stderr]   |
[INFO] [stderr] 5 |     interpret::{ClassVTable, VTable},
[INFO] [stderr]   |                 ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `node`
[INFO] [stderr]   --> src/interpret/mod.rs:78:34
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn visit_let_ivar(&mut self, node: &'a LetIVar<'a>) -> Result<'a, ()> {
[INFO] [stderr]    |                                  ^^^^ help: consider prefixing with an underscore: `_node`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `node`
[INFO] [stderr]   --> src/interpret/mod.rs:78:34
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn visit_let_ivar(&mut self, node: &'a LetIVar<'a>) -> Result<'a, ()> {
[INFO] [stderr]    |                                  ^^^^ help: consider prefixing with an underscore: `_node`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `IVarAccessedWithoutSelf`
[INFO] [stderr]   --> src/error.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     IVarAccessedWithoutSelf(Span),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `IVarAccessedOnNonInstanceValue`
[INFO] [stderr]   --> src/error.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     IVarAccessedOnNonInstanceValue(Span),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_specific_class_name`
[INFO] [stderr]   --> src/parse/mod.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     pub fn parse_specific_class_name(&mut self, name: &str) -> Result<'a, ClassName<'a>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `IVarAccessedWithoutSelf`
[INFO] [stderr]   --> src/error.rs:43:5
[INFO] [stderr]    |
[INFO] [stderr] 43 |     IVarAccessedWithoutSelf(Span),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `IVarAccessedOnNonInstanceValue`
[INFO] [stderr]   --> src/error.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     IVarAccessedOnNonInstanceValue(Span),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_specific_class_name`
[INFO] [stderr]   --> src/parse/mod.rs:89:5
[INFO] [stderr]    |
[INFO] [stderr] 89 |     pub fn parse_specific_class_name(&mut self, name: &str) -> Result<'a, ClassName<'a>> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.21s
[INFO] running `"docker" "inspect" "c6625b6873b885b12ef1bc7f3636708da436a8f5bafdc6f951697b25e28b1ea5"`
[INFO] running `"docker" "rm" "-f" "c6625b6873b885b12ef1bc7f3636708da436a8f5bafdc6f951697b25e28b1ea5"`
[INFO] [stdout] c6625b6873b885b12ef1bc7f3636708da436a8f5bafdc6f951697b25e28b1ea5