[INFO] cloning repository https://github.com/msekletar/prefixdevname
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/msekletar/prefixdevname" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmsekletar%2Fprefixdevname", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmsekletar%2Fprefixdevname'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8ca3b9137f7b362396fe4708f8280953a0ac1de6
[INFO] testing msekletar/prefixdevname against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmsekletar%2Fprefixdevname" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/msekletar/prefixdevname on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/msekletar/prefixdevname
[INFO] finished tweaking git repo https://github.com/msekletar/prefixdevname
[INFO] tweaked toml for git repo https://github.com/msekletar/prefixdevname written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/msekletar/prefixdevname already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63e3a3179224d210dbbf668f355fbbc625ff23c7defbc52757dbbd3c03c79600
[INFO] running `Command { std: "docker" "start" "-a" "63e3a3179224d210dbbf668f355fbbc625ff23c7defbc52757dbbd3c03c79600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63e3a3179224d210dbbf668f355fbbc625ff23c7defbc52757dbbd3c03c79600", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63e3a3179224d210dbbf668f355fbbc625ff23c7defbc52757dbbd3c03c79600", kill_on_drop: false }`
[INFO] [stdout] 63e3a3179224d210dbbf668f355fbbc625ff23c7defbc52757dbbd3c03c79600
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86ae47f09a0627d390b83b8c0feaab4ee59e811714d06e2bf136e51fba2d1af7
[INFO] running `Command { std: "docker" "start" "-a" "86ae47f09a0627d390b83b8c0feaab4ee59e811714d06e2bf136e51fba2d1af7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.42
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]    Compiling regex v1.0.1
[INFO] [stderr]    Compiling lazy_static v1.0.1
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling rust-ini v0.12.2
[INFO] [stderr]    Compiling regex-syntax v0.6.1
[INFO] [stderr]    Compiling log v0.4.3
[INFO] [stderr]    Compiling humantime v1.1.1
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling atty v0.2.10
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling libudev v0.2.0
[INFO] [stderr]    Compiling env_logger v0.5.10
[INFO] [stderr]    Compiling prefixdevname v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/config.rs:29:72
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn new<T: ToString>(link_name: &T) -> Result<PrefixedLink, Box<Error>> {
[INFO] [stdout]    |                                                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/config.rs:53:96
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn new_with_hwaddr<T: ToString>(link_name: &T, hwaddr: &T) -> Result<PrefixedLink, Box<Error>> {
[INFO] [stdout]    |                                                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/config.rs:77:73
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn link_name_sane<T: ToString>(link_name: &T) -> Result<(), Box<Error>> {
[INFO] [stdout]    |                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/config.rs:98:53
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn write_link_file(&self) -> Result<(), Box<Error>> {
[INFO] [stdout]    |                                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/config.rs:142:46
[INFO] [stdout]     |
[INFO] [stdout] 142 |     pub fn load(&mut self) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/config.rs:163:56
[INFO] [stdout]     |
[INFO] [stdout] 163 |     pub fn next_link_name(&self) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/config.rs:174:89
[INFO] [stdout]     |
[INFO] [stdout] 174 |     fn match_ethernet_links(udev_enumerate: &mut libudev::Enumerator) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/config.rs:181:63
[INFO] [stdout]     |
[INFO] [stdout] 181 |     fn enumerate_links_from_udev(&mut self) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/config.rs:215:64
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn enumerate_links_from_files(&mut self) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sema.rs:14:63
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn new_with_name(name: &str) -> Result<Semaphore, Box<Error>> {
[INFO] [stdout]    |                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/util.rs:14:70
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn rename_needed(ifname: &str, prefix: &str) -> Result<bool, Box<Error>> {
[INFO] [stdout]    |                                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/util.rs:57:72
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub fn hwaddr_normalize<T: ToString>(hwaddr: &T) -> Result<String, Box<Error>> {
[INFO] [stdout]    |                                                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/util.rs:72:57
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub fn hwaddr_from_event_device() -> Result<String, Box<Error>> {
[INFO] [stdout]    |                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/util.rs:85:63
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub fn get_prefix_from_file(path: &str) -> Result<String, Box<Error>> {
[INFO] [stdout]    |                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/config.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | /         lazy_static! {
[INFO] [stdout] 34 | |             static ref RE: Regex = Regex::new(r"([[:alpha:]]+)\d+").unwrap();
[INFO] [stdout] 35 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/config.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 | /         lazy_static! {
[INFO] [stdout] 59 | |             static ref RE: Regex = Regex::new(r"([[:alpha:]]+)\d+").unwrap();
[INFO] [stdout] 60 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]   --> src/config.rs:42:22
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let i = name.trim_left_matches(&prefix).parse::<u64>()?;
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]   --> src/config.rs:66:22
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let i = name.trim_left_matches(&prefix).parse::<u64>()?;
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]    --> src/config.rs:169:36
[INFO] [stdout]     |
[INFO] [stdout] 169 |         let last_index = last.name.trim_left_matches(&self.ifname_prefix).parse::<u64>()?;
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.66s
[INFO] running `Command { std: "docker" "inspect" "86ae47f09a0627d390b83b8c0feaab4ee59e811714d06e2bf136e51fba2d1af7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86ae47f09a0627d390b83b8c0feaab4ee59e811714d06e2bf136e51fba2d1af7", kill_on_drop: false }`
[INFO] [stdout] 86ae47f09a0627d390b83b8c0feaab4ee59e811714d06e2bf136e51fba2d1af7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc249de283bdf7a6335f996becbecfbeda682adedaad5cae0c9b6f9efcfdfb59
[INFO] running `Command { std: "docker" "start" "-a" "fc249de283bdf7a6335f996becbecfbeda682adedaad5cae0c9b6f9efcfdfb59", kill_on_drop: false }`
[INFO] [stderr]    Compiling prefixdevname v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/config.rs:29:72
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn new<T: ToString>(link_name: &T) -> Result<PrefixedLink, Box<Error>> {
[INFO] [stdout]    |                                                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/config.rs:53:96
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub fn new_with_hwaddr<T: ToString>(link_name: &T, hwaddr: &T) -> Result<PrefixedLink, Box<Error>> {
[INFO] [stdout]    |                                                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/config.rs:77:73
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn link_name_sane<T: ToString>(link_name: &T) -> Result<(), Box<Error>> {
[INFO] [stdout]    |                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/config.rs:98:53
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn write_link_file(&self) -> Result<(), Box<Error>> {
[INFO] [stdout]    |                                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/config.rs:142:46
[INFO] [stdout]     |
[INFO] [stdout] 142 |     pub fn load(&mut self) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/config.rs:163:56
[INFO] [stdout]     |
[INFO] [stdout] 163 |     pub fn next_link_name(&self) -> Result<String, Box<Error>> {
[INFO] [stdout]     |                                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/config.rs:174:89
[INFO] [stdout]     |
[INFO] [stdout] 174 |     fn match_ethernet_links(udev_enumerate: &mut libudev::Enumerator) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/config.rs:181:63
[INFO] [stdout]     |
[INFO] [stdout] 181 |     fn enumerate_links_from_udev(&mut self) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/config.rs:215:64
[INFO] [stdout]     |
[INFO] [stdout] 215 |     fn enumerate_links_from_files(&mut self) -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/config.rs:324:39
[INFO] [stdout]     |
[INFO] [stdout] 324 |     fn mock_sysfs() -> Result<(), Box<Error>> {
[INFO] [stdout]     |                                       ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sema.rs:14:63
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn new_with_name(name: &str) -> Result<Semaphore, Box<Error>> {
[INFO] [stdout]    |                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/util.rs:14:70
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub fn rename_needed(ifname: &str, prefix: &str) -> Result<bool, Box<Error>> {
[INFO] [stdout]    |                                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/util.rs:57:72
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub fn hwaddr_normalize<T: ToString>(hwaddr: &T) -> Result<String, Box<Error>> {
[INFO] [stdout]    |                                                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/util.rs:72:57
[INFO] [stdout]    |
[INFO] [stdout] 72 | pub fn hwaddr_from_event_device() -> Result<String, Box<Error>> {
[INFO] [stdout]    |                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/util.rs:85:63
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub fn get_prefix_from_file(path: &str) -> Result<String, Box<Error>> {
[INFO] [stdout]    |                                                               ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/config.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | /         lazy_static! {
[INFO] [stdout] 34 | |             static ref RE: Regex = Regex::new(r"([[:alpha:]]+)\d+").unwrap();
[INFO] [stdout] 35 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> src/config.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 | /         lazy_static! {
[INFO] [stdout] 59 | |             static ref RE: Regex = Regex::new(r"([[:alpha:]]+)\d+").unwrap();
[INFO] [stdout] 60 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]   --> src/config.rs:42:22
[INFO] [stdout]    |
[INFO] [stdout] 42 |         let i = name.trim_left_matches(&prefix).parse::<u64>()?;
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]   --> src/config.rs:66:22
[INFO] [stdout]    |
[INFO] [stdout] 66 |         let i = name.trim_left_matches(&prefix).parse::<u64>()?;
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]    --> src/config.rs:169:36
[INFO] [stdout]     |
[INFO] [stdout] 169 |         let last_index = last.name.trim_left_matches(&self.ifname_prefix).parse::<u64>()?;
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/deps/prefixdevname-609b6a1568b4a380.prefixdevname.2wua7n0m-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/prefixdevname-609b6a1568b4a380.prefixdevname.2wua7n0m-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/prefixdevname-609b6a1568b4a380.prefixdevname.2wua7n0m-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/prefixdevname-609b6a1568b4a380.prefixdevname.2wua7n0m-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/prefixdevname-609b6a1568b4a380.prefixdevname.2wua7n0m-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/prefixdevname-609b6a1568b4a380.prefixdevname.2wua7n0m-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/prefixdevname-609b6a1568b4a380.prefixdevname.2wua7n0m-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/prefixdevname-609b6a1568b4a380.prefixdevname.2wua7n0m-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/prefixdevname-609b6a1568b4a380.prefixdevname.2wua7n0m-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/prefixdevname-609b6a1568b4a380.prefixdevname.2wua7n0m-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/prefixdevname-609b6a1568b4a380.prefixdevname.2wua7n0m-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/prefixdevname-609b6a1568b4a380.prefixdevname.2wua7n0m-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/prefixdevname-609b6a1568b4a380.prefixdevname.2wua7n0m-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/prefixdevname-609b6a1568b4a380.prefixdevname.2wua7n0m-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/prefixdevname-609b6a1568b4a380.prefixdevname.2wua7n0m-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/prefixdevname-609b6a1568b4a380.prefixdevname.2wua7n0m-cgu.9.rcgu.o" "/opt/rustwide/target/debug/deps/prefixdevname-609b6a1568b4a380.4fw8i9smlyw7eqnb.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/lib/x86_64-linux-gnu" "-L" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lumockdev" "-Wl,-Bstatic" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libtest-3599c5491d44663f.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libterm-1d56ea45a67842c8.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgetopts-9749f7c936ebf9a7.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunicode_width-627a220173eefff1.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_std-16ed15e5bfe21b9b.rlib" "/opt/rustwide/target/debug/deps/libini-bc2ef636933bf839.rlib" "/opt/rustwide/target/debug/deps/liblibudev-f297f0652a6b6e64.rlib" "/opt/rustwide/target/debug/deps/liblibudev_sys-71bc8ca063fcc3d9.rlib" "/opt/rustwide/target/debug/deps/libenv_logger-21747112c001ed56.rlib" "/opt/rustwide/target/debug/deps/libregex-741f5ff10a604097.rlib" "/opt/rustwide/target/debug/deps/libutf8_ranges-c12f4957e28cb571.rlib" "/opt/rustwide/target/debug/deps/libregex_syntax-2b28929c7043783f.rlib" "/opt/rustwide/target/debug/deps/libucd_util-7a3ba18e50d2fa53.rlib" "/opt/rustwide/target/debug/deps/libthread_local-c55eb657e46e713b.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-5bc0ddbcc724dbdd.rlib" "/opt/rustwide/target/debug/deps/libunreachable-cea1dc93adc384b2.rlib" "/opt/rustwide/target/debug/deps/libvoid-7069755a5b9b2d3f.rlib" "/opt/rustwide/target/debug/deps/libaho_corasick-3e7834e69651a9bf.rlib" "/opt/rustwide/target/debug/deps/libmemchr-7c4c4c3ca1844a18.rlib" "/opt/rustwide/target/debug/deps/libatty-2c0ce44718fe8154.rlib" "/opt/rustwide/target/debug/deps/liblibc-853b6cb442b1724a.rlib" "/opt/rustwide/target/debug/deps/libhumantime-3644d6ba7a7e042e.rlib" "/opt/rustwide/target/debug/deps/libquick_error-9b5d59530daa3d27.rlib" "/opt/rustwide/target/debug/deps/libtermcolor-e9ae5ef6b467c3d0.rlib" "/opt/rustwide/target/debug/deps/liblog-483cb612442f54ed.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-c6e96304176f941d.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-2420485b9e5ef5e1.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-785e3cb61c4b1960.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-087191a88bdaa22d.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-9981842c02975178.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-6fb405869b015fde.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-d05c5c3c56004b7b.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-42d74d2097528b38.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-fb36534c113d2209.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-b56b9042c12b6535.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-491902d6cb3e76df.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-61834e0981b8c367.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-f78aa99d613a55bc.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-53ee54cd7fed2c57.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-544ecdbd6cda3c58.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-379cc252b6943a79.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-8063eea38dcc5e62.rlib" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-5b228734afae15ee.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-d6c7a399d95d173f.rlib" "-Wl,-Bdynamic" "-ludev" "-lutil" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/1.54.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/deps/prefixdevname-609b6a1568b4a380" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lumockdev
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `prefixdevname`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "fc249de283bdf7a6335f996becbecfbeda682adedaad5cae0c9b6f9efcfdfb59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc249de283bdf7a6335f996becbecfbeda682adedaad5cae0c9b6f9efcfdfb59", kill_on_drop: false }`
[INFO] [stdout] fc249de283bdf7a6335f996becbecfbeda682adedaad5cae0c9b6f9efcfdfb59
