[INFO] cloning repository https://github.com/sindreij/rust_irc_client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sindreij/rust_irc_client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsindreij%2Frust_irc_client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsindreij%2Frust_irc_client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5a7be4229324054918f6aaf217e78f4a674c508f
[INFO] testing sindreij/rust_irc_client against try#c3758fdc4730d7700b25a13cccff296a08f42c00 for pr-91743
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsindreij%2Frust_irc_client" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sindreij/rust_irc_client on toolchain c3758fdc4730d7700b25a13cccff296a08f42c00
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c3758fdc4730d7700b25a13cccff296a08f42c00" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sindreij/rust_irc_client
[INFO] finished tweaking git repo https://github.com/sindreij/rust_irc_client
[INFO] tweaked toml for git repo https://github.com/sindreij/rust_irc_client written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate git repo https://github.com/sindreij/rust_irc_client already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c3758fdc4730d7700b25a13cccff296a08f42c00" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+c3758fdc4730d7700b25a13cccff296a08f42c00" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24bf80bbf11f45d5fae128f8101de6e38bf2fcf24506d6c196b94ff846025d04
[INFO] running `Command { std: "docker" "start" "-a" "24bf80bbf11f45d5fae128f8101de6e38bf2fcf24506d6c196b94ff846025d04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24bf80bbf11f45d5fae128f8101de6e38bf2fcf24506d6c196b94ff846025d04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24bf80bbf11f45d5fae128f8101de6e38bf2fcf24506d6c196b94ff846025d04", kill_on_drop: false }`
[INFO] [stdout] 24bf80bbf11f45d5fae128f8101de6e38bf2fcf24506d6c196b94ff846025d04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+c3758fdc4730d7700b25a13cccff296a08f42c00" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0edb335dab07067b794d08e510b9082d6f2d91306e7280a95b2c4acbae3be0f
[INFO] running `Command { std: "docker" "start" "-a" "b0edb335dab07067b794d08e510b9082d6f2d91306e7280a95b2c4acbae3be0f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.8
[INFO] [stderr]    Compiling nom v1.2.2
[INFO] [stderr]    Compiling rand v0.3.14
[INFO] [stderr]    Compiling challenge_258_irc_making_a_connection v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:142:31
[INFO] [stdout]     |
[INFO] [stdout] 142 |     fn messages(&self) -> Box<Iterator<Item=Message>> {
[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] 142 -     fn messages(&self) -> Box<Iterator<Item=Message>> {
[INFO] [stdout] 142 +     fn messages(&self) -> Box<dyn Iterator<Item=Message>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.70s
[INFO] running `Command { std: "docker" "inspect" "b0edb335dab07067b794d08e510b9082d6f2d91306e7280a95b2c4acbae3be0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0edb335dab07067b794d08e510b9082d6f2d91306e7280a95b2c4acbae3be0f", kill_on_drop: false }`
[INFO] [stdout] b0edb335dab07067b794d08e510b9082d6f2d91306e7280a95b2c4acbae3be0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+c3758fdc4730d7700b25a13cccff296a08f42c00" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc4db33e52298d23fcbe59250a0e030d625d3cd4247a3b09f6321ce7a8791c9d
[INFO] running `Command { std: "docker" "start" "-a" "bc4db33e52298d23fcbe59250a0e030d625d3cd4247a3b09f6321ce7a8791c9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling challenge_258_irc_making_a_connection v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/main.rs:142:31
[INFO] [stdout]     |
[INFO] [stdout] 142 |     fn messages(&self) -> Box<Iterator<Item=Message>> {
[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] 142 -     fn messages(&self) -> Box<Iterator<Item=Message>> {
[INFO] [stdout] 142 +     fn messages(&self) -> Box<dyn Iterator<Item=Message>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.48s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/challenge_258_irc_making_a_connection-44fe0c36d6efe590)
[INFO] running `Command { std: "docker" "inspect" "bc4db33e52298d23fcbe59250a0e030d625d3cd4247a3b09f6321ce7a8791c9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc4db33e52298d23fcbe59250a0e030d625d3cd4247a3b09f6321ce7a8791c9d", kill_on_drop: false }`
[INFO] [stdout] bc4db33e52298d23fcbe59250a0e030d625d3cd4247a3b09f6321ce7a8791c9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+c3758fdc4730d7700b25a13cccff296a08f42c00" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2ba73eb2515e6c637762e3f875cd1f45cf3e694b1d5941cddb9ea70ae97b493a
[INFO] running `Command { std: "docker" "start" "-a" "2ba73eb2515e6c637762e3f875cd1f45cf3e694b1d5941cddb9ea70ae97b493a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "2ba73eb2515e6c637762e3f875cd1f45cf3e694b1d5941cddb9ea70ae97b493a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ba73eb2515e6c637762e3f875cd1f45cf3e694b1d5941cddb9ea70ae97b493a", kill_on_drop: false }`
[INFO] [stdout] 2ba73eb2515e6c637762e3f875cd1f45cf3e694b1d5941cddb9ea70ae97b493a