[INFO] crate tiny 0.4.4 is already in cache
[INFO] extracting crate tiny 0.4.4 into work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/tiny/0.4.4
[INFO] extracting crate tiny 0.4.4 into work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/tiny/0.4.4
[INFO] validating manifest of tiny-0.4.4 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 tiny-0.4.4 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 tiny-0.4.4
[INFO] finished frobbing tiny-0.4.4
[INFO] frobbed toml for tiny-0.4.4 written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/reg/tiny/0.4.4/Cargo.toml
[INFO] started frobbing tiny-0.4.4
[INFO] finished frobbing tiny-0.4.4
[INFO] frobbed toml for tiny-0.4.4 written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/reg/tiny/0.4.4/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] [stderr]     Blocking waiting for file lock on package cache
[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 tiny-0.4.4 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/tiny/0.4.4:/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] cf4d4665d3e0dbf20adca9531aeaa3b057ed99e5aeb66d85ef9bb8db4524e1cd
[INFO] running `"docker" "start" "-a" "cf4d4665d3e0dbf20adca9531aeaa3b057ed99e5aeb66d85ef9bb8db4524e1cd"`
[INFO] [stderr]    Compiling termbox_simple v0.2.3
[INFO] [stderr]     Checking nix v0.7.0
[INFO] [stderr]     Checking notify-rust v3.6.0
[INFO] [stderr]     Checking quickcheck v0.3.2
[INFO] [stderr]     Checking term_input v0.1.5
[INFO] [stderr]     Checking tiny v0.4.4 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/utils.rs:4:27
[INFO] [stderr]   |
[INFO] [stderr] 4 |     iter_orig: &'iter mut Iterator<Item = A>,
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = 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/utils.rs:5:29
[INFO] [stderr]   |
[INFO] [stderr] 5 |     iter_insert: &'iter mut Iterator<Item = A>,
[INFO] [stderr]   |                             ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = A>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/utils.rs:26:27
[INFO] [stderr]    |
[INFO] [stderr] 26 |     iter_orig: &'iter mut Iterator<Item = A>,
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = A>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/utils.rs:27:29
[INFO] [stderr]    |
[INFO] [stderr] 27 |     iter_insert: &'iter mut Iterator<Item = A>,
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = A>`
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Write` is imported redundantly
[INFO] [stderr]    --> src/conn.rs:476:17
[INFO] [stderr]     |
[INFO] [stderr] 5   | use std::io::Write;
[INFO] [stderr]     |     -------------- the item `Write` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 476 |             use std::io::Write;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/logger.rs:43:29
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn init_log_file(file: &mut Write) {
[INFO] [stderr]    |                             ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/stream/mod.rs:58:37
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn source(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/trie.rs:80:41
[INFO] [stderr]    |
[INFO] [stderr] 80 |     pub fn drop_pfx(&self, prefix: &mut Iterator<Item = char>) -> Vec<String> {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = char>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/utils.rs:4:27
[INFO] [stderr]   |
[INFO] [stderr] 4 |     iter_orig: &'iter mut Iterator<Item = A>,
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = 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/utils.rs:5:29
[INFO] [stderr]   |
[INFO] [stderr] 5 |     iter_insert: &'iter mut Iterator<Item = A>,
[INFO] [stderr]   |                             ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = A>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/utils.rs:26:27
[INFO] [stderr]    |
[INFO] [stderr] 26 |     iter_orig: &'iter mut Iterator<Item = A>,
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = A>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/utils.rs:27:29
[INFO] [stderr]    |
[INFO] [stderr] 27 |     iter_insert: &'iter mut Iterator<Item = A>,
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = A>`
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Write` is imported redundantly
[INFO] [stderr]    --> src/conn.rs:476:17
[INFO] [stderr]     |
[INFO] [stderr] 5   | use std::io::Write;
[INFO] [stderr]     |     -------------- the item `Write` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 476 |             use std::io::Write;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/logger.rs:43:29
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn init_log_file(file: &mut Write) {
[INFO] [stderr]    |                             ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/stream/mod.rs:58:37
[INFO] [stderr]    |
[INFO] [stderr] 58 |     pub fn source(&self) -> Option<&error::Error> {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/trie.rs:80:41
[INFO] [stderr]    |
[INFO] [stderr] 80 |     pub fn drop_pfx(&self, prefix: &mut Iterator<Item = char>) -> Vec<String> {
[INFO] [stderr]    |                                         ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = char>`
[INFO] [stderr] 
[INFO] [stderr] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/conn.rs:406:13
[INFO] [stderr]     |
[INFO] [stderr] 405 |         if let Some(ref pwd) = self.nickserv_ident {
[INFO] [stderr]     |                     ------- immutable borrow occurs here
[INFO] [stderr] 406 |             self.privmsg("NickServ", &format!("identify {}", pwd));
[INFO] [stderr]     |             ^^^^ mutable borrow occurs here                  --- immutable borrow later used here
[INFO] [stderr] 
[INFO] [stderr] error[E0502]: cannot borrow `*self` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/conn.rs:406:13
[INFO] [stderr]     |
[INFO] [stderr] 405 |         if let Some(ref pwd) = self.nickserv_ident {
[INFO] [stderr]     |                     ------- immutable borrow occurs here
[INFO] [stderr] 406 |             self.privmsg("NickServ", &format!("identify {}", pwd));
[INFO] [stderr]     |             ^^^^ mutable borrow occurs here                  --- immutable borrow later used here
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0502`.
[INFO] [stderr] error: Could not compile `tiny`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0502`.
[INFO] [stderr] error: Could not compile `tiny`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "cf4d4665d3e0dbf20adca9531aeaa3b057ed99e5aeb66d85ef9bb8db4524e1cd"`
[INFO] running `"docker" "rm" "-f" "cf4d4665d3e0dbf20adca9531aeaa3b057ed99e5aeb66d85ef9bb8db4524e1cd"`
[INFO] [stdout] cf4d4665d3e0dbf20adca9531aeaa3b057ed99e5aeb66d85ef9bb8db4524e1cd