[INFO] cloning repository msekletar/prefixdevname
[INFO] running `"git" "clone" "--bare" "git://github.com/msekletar/prefixdevname.git" "work/cache/sources/gh/msekletar/prefixdevname"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/msekletar/prefixdevname'...
[INFO] running `"git" "clone" "work/cache/sources/gh/msekletar/prefixdevname" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/msekletar/prefixdevname"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/msekletar/prefixdevname'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/msekletar/prefixdevname" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/msekletar/prefixdevname"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/msekletar/prefixdevname'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8ca3b9137f7b362396fe4708f8280953a0ac1de6
[INFO] sha for GitHub repo msekletar/prefixdevname: 8ca3b9137f7b362396fe4708f8280953a0ac1de6
[INFO] validating manifest of msekletar/prefixdevname on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of msekletar/prefixdevname on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing msekletar/prefixdevname
[INFO] finished frobbing msekletar/prefixdevname
[INFO] frobbed toml for msekletar/prefixdevname written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/msekletar/prefixdevname/Cargo.toml
[INFO] started frobbing msekletar/prefixdevname
[INFO] finished frobbing msekletar/prefixdevname
[INFO] frobbed toml for msekletar/prefixdevname written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/msekletar/prefixdevname/Cargo.toml
[INFO] crate msekletar/prefixdevname already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking msekletar/prefixdevname against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-2/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/msekletar/prefixdevname:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1ec7cc67d80a040e77f39b8f3381d7cb99d3afc90cbba3bdfee65ff4a2016f3e
[INFO] running `"docker" "start" "-a" "1ec7cc67d80a040e77f39b8f3381d7cb99d3afc90cbba3bdfee65ff4a2016f3e"`
[INFO] [stderr]     Checking regex v1.0.1
[INFO] [stderr]     Checking env_logger v0.5.10
[INFO] [stderr]     Checking prefixdevname v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/config.rs:29:72
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn new<T: ToString>(link_name: &T) -> Result<PrefixedLink, Box<Error>> {
[INFO] [stderr]    |                                                                        ^^^^^ help: use `dyn`: `dyn Error`
[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/config.rs:53:96
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub fn new_with_hwaddr<T: ToString>(link_name: &T, hwaddr: &T) -> Result<PrefixedLink, Box<Error>> {
[INFO] [stderr]    |                                                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/config.rs:77:73
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn link_name_sane<T: ToString>(link_name: &T) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/config.rs:98:53
[INFO] [stderr]    |
[INFO] [stderr] 98 |     pub fn write_link_file(&self) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/config.rs:142:46
[INFO] [stderr]     |
[INFO] [stderr] 142 |     pub fn load(&mut self) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/config.rs:163:56
[INFO] [stderr]     |
[INFO] [stderr] 163 |     pub fn next_link_name(&self) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/config.rs:174:89
[INFO] [stderr]     |
[INFO] [stderr] 174 |     fn match_ethernet_links(udev_enumerate: &mut libudev::Enumerator) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/config.rs:181:63
[INFO] [stderr]     |
[INFO] [stderr] 181 |     fn enumerate_links_from_udev(&mut self) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/config.rs:215:64
[INFO] [stderr]     |
[INFO] [stderr] 215 |     fn enumerate_links_from_files(&mut self) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sema.rs:14:63
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new_with_name(name: &str) -> Result<Semaphore, Box<Error>> {
[INFO] [stderr]    |                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util.rs:14:70
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn rename_needed(ifname: &str, prefix: &str) -> Result<bool, Box<Error>> {
[INFO] [stderr]    |                                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util.rs:57:72
[INFO] [stderr]    |
[INFO] [stderr] 57 | pub fn hwaddr_normalize<T: ToString>(hwaddr: &T) -> Result<String, Box<Error>> {
[INFO] [stderr]    |                                                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util.rs:72:57
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub fn hwaddr_from_event_device() -> Result<String, Box<Error>> {
[INFO] [stderr]    |                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util.rs:85:63
[INFO] [stderr]    |
[INFO] [stderr] 85 | pub fn get_prefix_from_file(path: &str) -> Result<String, Box<Error>> {
[INFO] [stderr]    |                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/config.rs:29:72
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn new<T: ToString>(link_name: &T) -> Result<PrefixedLink, Box<Error>> {
[INFO] [stderr]    |                                                                        ^^^^^ help: use `dyn`: `dyn Error`
[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/config.rs:53:96
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub fn new_with_hwaddr<T: ToString>(link_name: &T, hwaddr: &T) -> Result<PrefixedLink, Box<Error>> {
[INFO] [stderr]    |                                                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/config.rs:77:73
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn link_name_sane<T: ToString>(link_name: &T) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/config.rs:98:53
[INFO] [stderr]    |
[INFO] [stderr] 98 |     pub fn write_link_file(&self) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/config.rs:142:46
[INFO] [stderr]     |
[INFO] [stderr] 142 |     pub fn load(&mut self) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/config.rs:163:56
[INFO] [stderr]     |
[INFO] [stderr] 163 |     pub fn next_link_name(&self) -> Result<String, Box<Error>> {
[INFO] [stderr]     |                                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/config.rs:174:89
[INFO] [stderr]     |
[INFO] [stderr] 174 |     fn match_ethernet_links(udev_enumerate: &mut libudev::Enumerator) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/config.rs:181:63
[INFO] [stderr]     |
[INFO] [stderr] 181 |     fn enumerate_links_from_udev(&mut self) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/config.rs:215:64
[INFO] [stderr]     |
[INFO] [stderr] 215 |     fn enumerate_links_from_files(&mut self) -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/config.rs:324:39
[INFO] [stderr]     |
[INFO] [stderr] 324 |     fn mock_sysfs() -> Result<(), Box<Error>> {
[INFO] [stderr]     |                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/sema.rs:14:63
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub fn new_with_name(name: &str) -> Result<Semaphore, Box<Error>> {
[INFO] [stderr]    |                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util.rs:14:70
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn rename_needed(ifname: &str, prefix: &str) -> Result<bool, Box<Error>> {
[INFO] [stderr]    |                                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util.rs:57:72
[INFO] [stderr]    |
[INFO] [stderr] 57 | pub fn hwaddr_normalize<T: ToString>(hwaddr: &T) -> Result<String, Box<Error>> {
[INFO] [stderr]    |                                                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util.rs:72:57
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub fn hwaddr_from_event_device() -> Result<String, Box<Error>> {
[INFO] [stderr]    |                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/util.rs:85:63
[INFO] [stderr]    |
[INFO] [stderr] 85 | pub fn get_prefix_from_file(path: &str) -> Result<String, Box<Error>> {
[INFO] [stderr]    |                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]   --> src/config.rs:42:22
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let i = name.trim_left_matches(&prefix).parse::<u64>()?;
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]   --> src/config.rs:66:22
[INFO] [stderr]    |
[INFO] [stderr] 66 |         let i = name.trim_left_matches(&prefix).parse::<u64>()?;
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]   --> src/config.rs:42:22
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let i = name.trim_left_matches(&prefix).parse::<u64>()?;
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(deprecated)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]   --> src/config.rs:66:22
[INFO] [stderr]    |
[INFO] [stderr] 66 |         let i = name.trim_left_matches(&prefix).parse::<u64>()?;
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]    --> src/config.rs:169:36
[INFO] [stderr]     |
[INFO] [stderr] 169 |         let last_index = last.name.trim_left_matches(&self.ifname_prefix).parse::<u64>()?;
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'core::str::<impl str>::trim_left_matches': superseded by `trim_start_matches`
[INFO] [stderr]    --> src/config.rs:169:36
[INFO] [stderr]     |
[INFO] [stderr] 169 |         let last_index = last.name.trim_left_matches(&self.ifname_prefix).parse::<u64>()?;
[INFO] [stderr]     |                                    ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `trim_start_matches`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.37s
[INFO] running `"docker" "inspect" "1ec7cc67d80a040e77f39b8f3381d7cb99d3afc90cbba3bdfee65ff4a2016f3e"`
[INFO] running `"docker" "rm" "-f" "1ec7cc67d80a040e77f39b8f3381d7cb99d3afc90cbba3bdfee65ff4a2016f3e"`
[INFO] [stdout] 1ec7cc67d80a040e77f39b8f3381d7cb99d3afc90cbba3bdfee65ff4a2016f3e