[INFO] cloning repository https://github.com/lzhelyaskov/wc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lzhelyaskov/wc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flzhelyaskov%2Fwc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flzhelyaskov%2Fwc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 88fc384707ddeddb2ab9675927a49bbee13a304b
[INFO] testing lzhelyaskov/wc against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flzhelyaskov%2Fwc" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lzhelyaskov/wc on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lzhelyaskov/wc
[INFO] finished tweaking git repo https://github.com/lzhelyaskov/wc
[INFO] tweaked toml for git repo https://github.com/lzhelyaskov/wc written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/lzhelyaskov/wc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e0ad5a385389926df01b95797c4c18d1542b7736080a7399a1d2026be15e118
[INFO] running `Command { std: "docker" "start" "-a" "9e0ad5a385389926df01b95797c4c18d1542b7736080a7399a1d2026be15e118", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e0ad5a385389926df01b95797c4c18d1542b7736080a7399a1d2026be15e118", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e0ad5a385389926df01b95797c4c18d1542b7736080a7399a1d2026be15e118", kill_on_drop: false }`
[INFO] [stdout] 9e0ad5a385389926df01b95797c4c18d1542b7736080a7399a1d2026be15e118
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=forbid" "-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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f99d7e399a481c5e63dd63bac12cbcf27dcbe5e045963ea1722c2b8624232b26
[INFO] running `Command { std: "docker" "start" "-a" "f99d7e399a481c5e63dd63bac12cbcf27dcbe5e045963ea1722c2b8624232b26", kill_on_drop: false }`
[INFO] [stderr]    Compiling getopts v0.2.19
[INFO] [stderr]    Compiling wc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:14:40
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub type Format = fn(WordCountVec, Box<Write>) -> Result<(), io::Error>;
[INFO] [stdout]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/main.rs:270:21
[INFO] [stdout]     |
[INFO] [stdout] 270 |     let writer: Box<Write> = {
[INFO] [stdout]     |                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/main.rs:294:47
[INFO] [stdout]     |
[INFO] [stdout] 294 | fn plain(items: WordCountVec, mut writer: Box<Write>) -> Result<(), io::Error> {
[INFO] [stdout]     |                                               ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/main.rs:302:45
[INFO] [stdout]     |
[INFO] [stdout] 302 | fn csv(items: WordCountVec, mut writer: Box<Write>) -> Result<(), io::Error> {
[INFO] [stdout]     |                                             ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/main.rs:311:46
[INFO] [stdout]     |
[INFO] [stdout] 311 | fn json(items: WordCountVec, mut writer: Box<Write>) -> Result<(), io::Error> {
[INFO] [stdout]     |                                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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 associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/main.rs:278:31
[INFO] [stdout]     |
[INFO] [stdout] 278 |                         error.description()
[INFO] [stdout]     |                               ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.50s
[INFO] running `Command { std: "docker" "inspect" "f99d7e399a481c5e63dd63bac12cbcf27dcbe5e045963ea1722c2b8624232b26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f99d7e399a481c5e63dd63bac12cbcf27dcbe5e045963ea1722c2b8624232b26", kill_on_drop: false }`
[INFO] [stdout] f99d7e399a481c5e63dd63bac12cbcf27dcbe5e045963ea1722c2b8624232b26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=forbid" "-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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc7f8df48e1063a49fa7d15d37174f4958db206003bc3ddb9366d5e1bbc88d18
[INFO] running `Command { std: "docker" "start" "-a" "cc7f8df48e1063a49fa7d15d37174f4958db206003bc3ddb9366d5e1bbc88d18", kill_on_drop: false }`
[INFO] [stderr]    Compiling wc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:14:40
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub type Format = fn(WordCountVec, Box<Write>) -> Result<(), io::Error>;
[INFO] [stdout]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/main.rs:270:21
[INFO] [stdout]     |
[INFO] [stdout] 270 |     let writer: Box<Write> = {
[INFO] [stdout]     |                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/main.rs:294:47
[INFO] [stdout]     |
[INFO] [stdout] 294 | fn plain(items: WordCountVec, mut writer: Box<Write>) -> Result<(), io::Error> {
[INFO] [stdout]     |                                               ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/main.rs:302:45
[INFO] [stdout]     |
[INFO] [stdout] 302 | fn csv(items: WordCountVec, mut writer: Box<Write>) -> Result<(), io::Error> {
[INFO] [stdout]     |                                             ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/main.rs:311:46
[INFO] [stdout]     |
[INFO] [stdout] 311 | fn json(items: WordCountVec, mut writer: Box<Write>) -> Result<(), io::Error> {
[INFO] [stdout]     |                                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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 associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/main.rs:278:31
[INFO] [stdout]     |
[INFO] [stdout] 278 |                         error.description()
[INFO] [stdout]     |                               ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cc7f8df48e1063a49fa7d15d37174f4958db206003bc3ddb9366d5e1bbc88d18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc7f8df48e1063a49fa7d15d37174f4958db206003bc3ddb9366d5e1bbc88d18", kill_on_drop: false }`
[INFO] [stdout] cc7f8df48e1063a49fa7d15d37174f4958db206003bc3ddb9366d5e1bbc88d18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=forbid" "-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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] da7e0d74e9c8c0deafb9b74a6e39ceb6bb9ec64394ffd958c61e56c6a75e649a
[INFO] running `Command { std: "docker" "start" "-a" "da7e0d74e9c8c0deafb9b74a6e39ceb6bb9ec64394ffd958c61e56c6a75e649a", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:14:40
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub type Format = fn(WordCountVec, Box<Write>) -> Result<(), io::Error>;
[INFO] [stderr]    |                                        ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:270:21
[INFO] [stderr]     |
[INFO] [stderr] 270 |     let writer: Box<Write> = {
[INFO] [stderr]     |                     ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:294:47
[INFO] [stderr]     |
[INFO] [stderr] 294 | fn plain(items: WordCountVec, mut writer: Box<Write>) -> Result<(), io::Error> {
[INFO] [stderr]     |                                               ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:302:45
[INFO] [stderr]     |
[INFO] [stderr] 302 | fn csv(items: WordCountVec, mut writer: Box<Write>) -> Result<(), io::Error> {
[INFO] [stderr]     |                                             ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:311:46
[INFO] [stderr]     |
[INFO] [stderr] 311 | fn json(items: WordCountVec, mut writer: Box<Write>) -> Result<(), io::Error> {
[INFO] [stderr]     |                                              ^^^^^ help: use `dyn`: `dyn Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/main.rs:278:31
[INFO] [stderr]     |
[INFO] [stderr] 278 |                         error.description()
[INFO] [stderr]     |                               ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/wc-cadaa377f5541574)
[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" "da7e0d74e9c8c0deafb9b74a6e39ceb6bb9ec64394ffd958c61e56c6a75e649a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da7e0d74e9c8c0deafb9b74a6e39ceb6bb9ec64394ffd958c61e56c6a75e649a", kill_on_drop: false }`
[INFO] [stdout] da7e0d74e9c8c0deafb9b74a6e39ceb6bb9ec64394ffd958c61e56c6a75e649a