[INFO] updating cached repository Ryan1729/prop-proc-prog-puzz
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Ryan1729/prop-proc-prog-puzz
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Ryan1729/prop-proc-prog-puzz" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/Ryan1729/prop-proc-prog-puzz"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/Ryan1729/prop-proc-prog-puzz'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Ryan1729/prop-proc-prog-puzz" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/Ryan1729/prop-proc-prog-puzz"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/Ryan1729/prop-proc-prog-puzz'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cde2a1afb4ca6edbf59d8ad7e518d2b11b3c7304
[INFO] sha for GitHub repo Ryan1729/prop-proc-prog-puzz: cde2a1afb4ca6edbf59d8ad7e518d2b11b3c7304
[INFO] validating manifest of Ryan1729/prop-proc-prog-puzz 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 Ryan1729/prop-proc-prog-puzz 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 Ryan1729/prop-proc-prog-puzz
[INFO] finished frobbing Ryan1729/prop-proc-prog-puzz
[INFO] frobbed toml for Ryan1729/prop-proc-prog-puzz written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/Ryan1729/prop-proc-prog-puzz/Cargo.toml
[INFO] started frobbing Ryan1729/prop-proc-prog-puzz
[INFO] finished frobbing Ryan1729/prop-proc-prog-puzz
[INFO] frobbed toml for Ryan1729/prop-proc-prog-puzz written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/Ryan1729/prop-proc-prog-puzz/Cargo.toml
[INFO] crate Ryan1729/prop-proc-prog-puzz 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] checking Ryan1729/prop-proc-prog-puzz against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-5/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/Ryan1729/prop-proc-prog-puzz:/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] 97f8aca68201e9b885af3dd9ef085ba7d1a2af8964556c17d82eeaacf3a0b4e5
[INFO] running `"docker" "start" "-a" "97f8aca68201e9b885af3dd9ef085ba7d1a2af8964556c17d82eeaacf3a0b4e5"`
[INFO] [stderr]     Checking prop_proc_prog_puzz v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Checking quickcheck v0.3.2
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/code_gen.rs:212:22
[INFO] [stderr]     |
[INFO] [stderr] 212 |     pub example: &'a Fn(&mut StdRng) -> String,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut StdRng) -> String`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/code_gen.rs:217:46
[INFO] [stderr]     |
[INFO] [stderr] 217 |     pub fn built_in(name: &str, example: &'a Fn(&mut StdRng) -> String) -> Self {
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut StdRng) -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:38:25
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let input_example: &Fn(&mut StdRng) -> String = &|rng: &mut StdRng| rng.gen::<u8>().to_string();
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut StdRng) -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:69:20
[INFO] [stderr]    |
[INFO] [stderr] 69 |         example: &|mut rng| match rng.gen::<u8>() % 3 {
[INFO] [stderr]    |                    ----^^^
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/code_gen.rs:212:22
[INFO] [stderr]     |
[INFO] [stderr] 212 |     pub example: &'a Fn(&mut StdRng) -> String,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut StdRng) -> String`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/code_gen.rs:217:46
[INFO] [stderr]     |
[INFO] [stderr] 217 |     pub fn built_in(name: &str, example: &'a Fn(&mut StdRng) -> String) -> Self {
[INFO] [stderr]     |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut StdRng) -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:38:25
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let input_example: &Fn(&mut StdRng) -> String = &|rng: &mut StdRng| rng.gen::<u8>().to_string();
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut StdRng) -> String`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:69:20
[INFO] [stderr]    |
[INFO] [stderr] 69 |         example: &|mut rng| match rng.gen::<u8>() % 3 {
[INFO] [stderr]    |                    ----^^^
[INFO] [stderr]    |                    |
[INFO] [stderr]    |                    help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.44s
[INFO] running `"docker" "inspect" "97f8aca68201e9b885af3dd9ef085ba7d1a2af8964556c17d82eeaacf3a0b4e5"`
[INFO] running `"docker" "rm" "-f" "97f8aca68201e9b885af3dd9ef085ba7d1a2af8964556c17d82eeaacf3a0b4e5"`
[INFO] [stdout] 97f8aca68201e9b885af3dd9ef085ba7d1a2af8964556c17d82eeaacf3a0b4e5