[INFO] crate flot 0.1.3 is already in cache
[INFO] extracting crate flot 0.1.3 into work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/flot/0.1.3
[INFO] extracting crate flot 0.1.3 into work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/flot/0.1.3
[INFO] validating manifest of flot-0.1.3 on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of flot-0.1.3 on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing flot-0.1.3
[INFO] finished frobbing flot-0.1.3
[INFO] frobbed toml for flot-0.1.3 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/flot/0.1.3/Cargo.toml
[INFO] started frobbing flot-0.1.3
[INFO] finished frobbing flot-0.1.3
[INFO] frobbed toml for flot-0.1.3 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/flot/0.1.3/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking flot-0.1.3 against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-4/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/flot/0.1.3:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 87798edb089f3a5a02435b98a28098d873091acc53d0e80356e6f4ad8bf6d019
[INFO] running `"docker" "start" "-a" "87798edb089f3a5a02435b98a28098d873091acc53d0e80356e6f4ad8bf6d019"`
[INFO] [stderr]     Checking typed-arena v1.5.0
[INFO] [stderr]     Checking flot v0.1.3 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:133:49
[INFO] [stderr]     |
[INFO] [stderr] 133 | pub fn zip<'a,I1,I2,T1,T2>(x: I1, y: I2) -> Box<Iterator<Item=(f64,f64)>+'a>
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=(f64,f64)>+'a`
[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/lib.rs:142:41
[INFO] [stderr]     |
[INFO] [stderr] 142 | pub fn to_f64 <'a,I,T1,T2>(x: I) -> Box<Iterator<Item=(f64,f64)>+'a>
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=(f64,f64)>+'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:152:34
[INFO] [stderr]     |
[INFO] [stderr] 152 | pub fn valr<'a,I,T>(y: I) -> Box<Iterator<Item=(f64,f64)>+'a>
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=(f64,f64)>+'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:162:42
[INFO] [stderr]     |
[INFO] [stderr] 162 | pub fn mapr<'a,I,T,F>(x: I, f: F) -> Box<Iterator<Item=(f64,f64)>+'a>
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=(f64,f64)>+'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:171:42
[INFO] [stderr]     |
[INFO] [stderr] 171 | pub fn mapv<'a,I,T,F>(x: I, f: F) -> Box<Iterator<Item=(f64,f64)>+'a>
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=(f64,f64)>+'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:133:49
[INFO] [stderr]     |
[INFO] [stderr] 133 | pub fn zip<'a,I1,I2,T1,T2>(x: I1, y: I2) -> Box<Iterator<Item=(f64,f64)>+'a>
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=(f64,f64)>+'a`
[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/lib.rs:142:41
[INFO] [stderr]     |
[INFO] [stderr] 142 | pub fn to_f64 <'a,I,T1,T2>(x: I) -> Box<Iterator<Item=(f64,f64)>+'a>
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=(f64,f64)>+'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:152:34
[INFO] [stderr]     |
[INFO] [stderr] 152 | pub fn valr<'a,I,T>(y: I) -> Box<Iterator<Item=(f64,f64)>+'a>
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=(f64,f64)>+'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:162:42
[INFO] [stderr]     |
[INFO] [stderr] 162 | pub fn mapr<'a,I,T,F>(x: I, f: F) -> Box<Iterator<Item=(f64,f64)>+'a>
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=(f64,f64)>+'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:171:42
[INFO] [stderr]     |
[INFO] [stderr] 171 | pub fn mapv<'a,I,T,F>(x: I, f: F) -> Box<Iterator<Item=(f64,f64)>+'a>
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=(f64,f64)>+'a`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:713:42
[INFO] [stderr]     |
[INFO] [stderr] 713 |     fn render_placeholder(&self, f: &mut Write) -> io::Result<()> {
[INFO] [stderr]     |                                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:727:36
[INFO] [stderr]     |
[INFO] [stderr] 727 |     fn render_script(self, f: &mut Write) -> io::Result<()> {
[INFO] [stderr]     |                                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:713:42
[INFO] [stderr]     |
[INFO] [stderr] 713 |     fn render_placeholder(&self, f: &mut Write) -> io::Result<()> {
[INFO] [stderr]     |                                          ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:727:36
[INFO] [stderr]     |
[INFO] [stderr] 727 |     fn render_script(self, f: &mut Write) -> io::Result<()> {
[INFO] [stderr]     |                                    ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:504:17
[INFO] [stderr]     |
[INFO] [stderr] 504 |             let mut arr = self.markings();
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:504:17
[INFO] [stderr]     |
[INFO] [stderr] 504 |             let mut arr = self.markings();
[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 1.90s
[INFO] running `"docker" "inspect" "87798edb089f3a5a02435b98a28098d873091acc53d0e80356e6f4ad8bf6d019"`
[INFO] running `"docker" "rm" "-f" "87798edb089f3a5a02435b98a28098d873091acc53d0e80356e6f4ad8bf6d019"`
[INFO] [stdout] 87798edb089f3a5a02435b98a28098d873091acc53d0e80356e6f4ad8bf6d019