[INFO] cloning repository https://github.com/hyone/rust-wc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hyone/rust-wc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhyone%2Frust-wc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhyone%2Frust-wc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 93502b4b37386a1b8c1770bb90ab98a60d641b48
[INFO] testing hyone/rust-wc against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhyone%2Frust-wc" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hyone/rust-wc on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hyone/rust-wc
[INFO] finished tweaking git repo https://github.com/hyone/rust-wc
[INFO] tweaked toml for git repo https://github.com/hyone/rust-wc written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/hyone/rust-wc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1f74b3db2c4ebc5ffd924fb10cf874bd0c91486f2984fe9b39e3c559666ca70
[INFO] running `Command { std: "docker" "start" "-a" "d1f74b3db2c4ebc5ffd924fb10cf874bd0c91486f2984fe9b39e3c559666ca70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1f74b3db2c4ebc5ffd924fb10cf874bd0c91486f2984fe9b39e3c559666ca70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1f74b3db2c4ebc5ffd924fb10cf874bd0c91486f2984fe9b39e3c559666ca70", kill_on_drop: false }`
[INFO] [stdout] d1f74b3db2c4ebc5ffd924fb10cf874bd0c91486f2984fe9b39e3c559666ca70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3a81578313d4e4d767a39bdc79d513ceb6c1a2b346351590d7148931d96f996
[INFO] running `Command { std: "docker" "start" "-a" "d3a81578313d4e4d767a39bdc79d513ceb6c1a2b346351590d7148931d96f996", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling libc v0.2.26
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling lazy_static v0.2.1
[INFO] [stderr]    Compiling regex-syntax v0.4.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling serde v1.0.10
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling bytecount v0.1.7
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling serde_derive_internals v0.15.1
[INFO] [stderr]    Compiling serde_derive v1.0.10
[INFO] [stderr]    Compiling docopt v0.8.1
[INFO] [stderr]    Compiling wc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/result.rs:4:44
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type Result<T> = result::Result<T, Box<StdError>>;
[INFO] [stdout]   |                                            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 - pub type Result<T> = result::Result<T, Box<StdError>>;
[INFO] [stdout] 4 + pub type Result<T> = result::Result<T, Box<dyn StdError>>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/report.rs:43:44
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn results_ok<'a>(&'a self) -> Box<Iterator<Item=&'a CountStat> + 'a> {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 43 -     pub fn results_ok<'a>(&'a self) -> Box<Iterator<Item=&'a CountStat> + 'a> {
[INFO] [stdout] 43 +     pub fn results_ok<'a>(&'a self) -> Box<dyn Iterator<Item=&'a CountStat> + 'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/report.rs:47:38
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn iter<'a>(&'a self) -> Box<Iterator<Item=&'a Report<T>> + 'a> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 47 -     pub fn iter<'a>(&'a self) -> Box<Iterator<Item=&'a Report<T>> + 'a> {
[INFO] [stdout] 47 +     pub fn iter<'a>(&'a self) -> Box<dyn Iterator<Item=&'a Report<T>> + 'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/result.rs:4:44
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type Result<T> = result::Result<T, Box<StdError>>;
[INFO] [stdout]   |                                            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 - pub type Result<T> = result::Result<T, Box<StdError>>;
[INFO] [stdout] 4 + pub type Result<T> = result::Result<T, Box<dyn StdError>>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/report.rs:43:44
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn results_ok<'a>(&'a self) -> Box<Iterator<Item=&'a CountStat> + 'a> {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 43 -     pub fn results_ok<'a>(&'a self) -> Box<Iterator<Item=&'a CountStat> + 'a> {
[INFO] [stdout] 43 +     pub fn results_ok<'a>(&'a self) -> Box<dyn Iterator<Item=&'a CountStat> + 'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/report.rs:47:38
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn iter<'a>(&'a self) -> Box<Iterator<Item=&'a Report<T>> + 'a> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 47 -     pub fn iter<'a>(&'a self) -> Box<Iterator<Item=&'a Report<T>> + 'a> {
[INFO] [stdout] 47 +     pub fn iter<'a>(&'a self) -> Box<dyn Iterator<Item=&'a Report<T>> + 'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.78s
[INFO] running `Command { std: "docker" "inspect" "d3a81578313d4e4d767a39bdc79d513ceb6c1a2b346351590d7148931d96f996", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3a81578313d4e4d767a39bdc79d513ceb6c1a2b346351590d7148931d96f996", kill_on_drop: false }`
[INFO] [stdout] d3a81578313d4e4d767a39bdc79d513ceb6c1a2b346351590d7148931d96f996
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5374ecaaefd95039865ca188b561b6a709cf3ecb4b72561508b8db3bddc092fe
[INFO] running `Command { std: "docker" "start" "-a" "5374ecaaefd95039865ca188b561b6a709cf3ecb4b72561508b8db3bddc092fe", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/result.rs:4:44
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type Result<T> = result::Result<T, Box<StdError>>;
[INFO] [stdout]   |                                            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 - pub type Result<T> = result::Result<T, Box<StdError>>;
[INFO] [stdout] 4 + pub type Result<T> = result::Result<T, Box<dyn StdError>>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/report.rs:43:44
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn results_ok<'a>(&'a self) -> Box<Iterator<Item=&'a CountStat> + 'a> {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 43 -     pub fn results_ok<'a>(&'a self) -> Box<Iterator<Item=&'a CountStat> + 'a> {
[INFO] [stdout] 43 +     pub fn results_ok<'a>(&'a self) -> Box<dyn Iterator<Item=&'a CountStat> + 'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling wc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/report.rs:47:38
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn iter<'a>(&'a self) -> Box<Iterator<Item=&'a Report<T>> + 'a> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 47 -     pub fn iter<'a>(&'a self) -> Box<Iterator<Item=&'a Report<T>> + 'a> {
[INFO] [stdout] 47 +     pub fn iter<'a>(&'a self) -> Box<dyn Iterator<Item=&'a Report<T>> + 'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/result.rs:4:44
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type Result<T> = result::Result<T, Box<StdError>>;
[INFO] [stdout]   |                                            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 - pub type Result<T> = result::Result<T, Box<StdError>>;
[INFO] [stdout] 4 + pub type Result<T> = result::Result<T, Box<dyn StdError>>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/report.rs:43:44
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn results_ok<'a>(&'a self) -> Box<Iterator<Item=&'a CountStat> + 'a> {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 43 -     pub fn results_ok<'a>(&'a self) -> Box<Iterator<Item=&'a CountStat> + 'a> {
[INFO] [stdout] 43 +     pub fn results_ok<'a>(&'a self) -> Box<dyn Iterator<Item=&'a CountStat> + 'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/report.rs:47:38
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn iter<'a>(&'a self) -> Box<Iterator<Item=&'a Report<T>> + 'a> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 47 -     pub fn iter<'a>(&'a self) -> Box<Iterator<Item=&'a Report<T>> + 'a> {
[INFO] [stdout] 47 +     pub fn iter<'a>(&'a self) -> Box<dyn Iterator<Item=&'a Report<T>> + 'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/report.rs:73:36
[INFO] [stdout]    |
[INFO] [stdout] 73 |         fn cause(&self) -> Option<&StdError> { None }
[INFO] [stdout]    |                                    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 73 -         fn cause(&self) -> Option<&StdError> { None }
[INFO] [stdout] 73 +         fn cause(&self) -> Option<&dyn StdError> { None }
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/result.rs:4:44
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type Result<T> = result::Result<T, Box<StdError>>;
[INFO] [stdout]   |                                            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 - pub type Result<T> = result::Result<T, Box<StdError>>;
[INFO] [stdout] 4 + pub type Result<T> = result::Result<T, Box<dyn StdError>>;
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/report.rs:43:44
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn results_ok<'a>(&'a self) -> Box<Iterator<Item=&'a CountStat> + 'a> {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 43 -     pub fn results_ok<'a>(&'a self) -> Box<Iterator<Item=&'a CountStat> + 'a> {
[INFO] [stdout] 43 +     pub fn results_ok<'a>(&'a self) -> Box<dyn Iterator<Item=&'a CountStat> + 'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/report.rs:47:38
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn iter<'a>(&'a self) -> Box<Iterator<Item=&'a Report<T>> + 'a> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 47 -     pub fn iter<'a>(&'a self) -> Box<Iterator<Item=&'a Report<T>> + 'a> {
[INFO] [stdout] 47 +     pub fn iter<'a>(&'a self) -> Box<dyn Iterator<Item=&'a Report<T>> + 'a> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/report.rs:73:36
[INFO] [stdout]    |
[INFO] [stdout] 73 |         fn cause(&self) -> Option<&StdError> { None }
[INFO] [stdout]    |                                    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 73 -         fn cause(&self) -> Option<&StdError> { None }
[INFO] [stdout] 73 +         fn cause(&self) -> Option<&dyn StdError> { None }
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "5374ecaaefd95039865ca188b561b6a709cf3ecb4b72561508b8db3bddc092fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5374ecaaefd95039865ca188b561b6a709cf3ecb4b72561508b8db3bddc092fe", kill_on_drop: false }`
[INFO] [stdout] 5374ecaaefd95039865ca188b561b6a709cf3ecb4b72561508b8db3bddc092fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 35d92455b04e37480ad3b0a5a00738054a8e227092f0f510be1c196ee5a405f8
[INFO] running `Command { std: "docker" "start" "-a" "35d92455b04e37480ad3b0a5a00738054a8e227092f0f510be1c196ee5a405f8", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/result.rs:4:44
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub type Result<T> = result::Result<T, Box<StdError>>;
[INFO] [stderr]   |                                            ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]   |
[INFO] [stderr] 4 - pub type Result<T> = result::Result<T, Box<StdError>>;
[INFO] [stderr] 4 + pub type Result<T> = result::Result<T, Box<dyn StdError>>;
[INFO] [stderr]   | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/report.rs:43:44
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn results_ok<'a>(&'a self) -> Box<Iterator<Item=&'a CountStat> + 'a> {
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 43 -     pub fn results_ok<'a>(&'a self) -> Box<Iterator<Item=&'a CountStat> + 'a> {
[INFO] [stderr] 43 +     pub fn results_ok<'a>(&'a self) -> Box<dyn Iterator<Item=&'a CountStat> + 'a> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/report.rs:47:38
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn iter<'a>(&'a self) -> Box<Iterator<Item=&'a Report<T>> + 'a> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 47 -     pub fn iter<'a>(&'a self) -> Box<Iterator<Item=&'a Report<T>> + 'a> {
[INFO] [stderr] 47 +     pub fn iter<'a>(&'a self) -> Box<dyn Iterator<Item=&'a Report<T>> + 'a> {
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/report.rs:73:36
[INFO] [stderr]    |
[INFO] [stderr] 73 |         fn cause(&self) -> Option<&StdError> { None }
[INFO] [stderr]    |                                    ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 73 -         fn cause(&self) -> Option<&StdError> { None }
[INFO] [stderr] 73 +         fn cause(&self) -> Option<&dyn StdError> { None }
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: `wc` (lib) generated 3 warnings
[INFO] [stderr] warning: `wc` (lib test) generated 4 warnings (3 duplicates)
[INFO] [stderr] warning: `wc` (bin "rust-wc" test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/wc-25965f94e02d1e70)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test count::tests::test_count_bytes ... ok
[INFO] [stdout] test count::tests::test_count_chars ... ok
[INFO] [stdout] test count::tests::test_count_lines ... ok
[INFO] [stdout] test count::tests::test_max_field_width ... ok
[INFO] [stdout] test report::tests::test_field_width ... ok
[INFO] [stdout] test count::tests::test_count_words ... ok
[INFO] [stdout] test report::tests::test_reports_has_error ... ok
[INFO] [stdout] test report::tests::test_results_ok ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_wc-61e53899f0a2eadb)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test count::tests::test_count_bytes ... ok
[INFO] [stdout] test count::tests::test_count_lines ... ok
[INFO] [stdout] test count::tests::test_count_chars ... ok
[INFO] [stdout] test count::tests::test_max_field_width ... ok
[INFO] [stdout] test report::tests::test_field_width ... ok
[INFO] [stdout] test report::tests::test_reports_has_error ... ok
[INFO] [stdout] test report::tests::test_results_ok ... ok
[INFO] [stdout] test count::tests::test_count_words ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests wc
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "35d92455b04e37480ad3b0a5a00738054a8e227092f0f510be1c196ee5a405f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35d92455b04e37480ad3b0a5a00738054a8e227092f0f510be1c196ee5a405f8", kill_on_drop: false }`
[INFO] [stdout] 35d92455b04e37480ad3b0a5a00738054a8e227092f0f510be1c196ee5a405f8