[INFO] fetching crate read_chars 0.3.0...
[INFO] testing read_chars-0.3.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate read_chars 0.3.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate read_chars 0.3.0
[INFO] finished tweaking crates.io crate read_chars 0.3.0
[INFO] tweaked toml for crates.io crate read_chars 0.3.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate read_chars 0.3.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d15c3c3592cefaed51c9b4a6f81e8bb3a42e841c10ce81005cc3c6b15fb129c
[INFO] running `Command { std: "docker" "start" "-a" "9d15c3c3592cefaed51c9b4a6f81e8bb3a42e841c10ce81005cc3c6b15fb129c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d15c3c3592cefaed51c9b4a6f81e8bb3a42e841c10ce81005cc3c6b15fb129c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d15c3c3592cefaed51c9b4a6f81e8bb3a42e841c10ce81005cc3c6b15fb129c", kill_on_drop: false }`
[INFO] [stdout] 9d15c3c3592cefaed51c9b4a6f81e8bb3a42e841c10ce81005cc3c6b15fb129c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c4446eafb33b9b45367fbeca7a1fd1862ebb0962b2548eefae531e456e373a1
[INFO] running `Command { std: "docker" "start" "-a" "3c4446eafb33b9b45367fbeca7a1fd1862ebb0962b2548eefae531e456e373a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling read_chars v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "3c4446eafb33b9b45367fbeca7a1fd1862ebb0962b2548eefae531e456e373a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c4446eafb33b9b45367fbeca7a1fd1862ebb0962b2548eefae531e456e373a1", kill_on_drop: false }`
[INFO] [stdout] 3c4446eafb33b9b45367fbeca7a1fd1862ebb0962b2548eefae531e456e373a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6563484dfcb5fa70b1d7201f7d9e00fbeeb15d2c948f5a1db78a79e9849ce131
[INFO] running `Command { std: "docker" "start" "-a" "6563484dfcb5fa70b1d7201f7d9e00fbeeb15d2c948f5a1db78a79e9849ce131", kill_on_drop: false }`
[INFO] [stderr]    Compiling read_chars v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "6563484dfcb5fa70b1d7201f7d9e00fbeeb15d2c948f5a1db78a79e9849ce131", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6563484dfcb5fa70b1d7201f7d9e00fbeeb15d2c948f5a1db78a79e9849ce131", kill_on_drop: false }`
[INFO] [stdout] 6563484dfcb5fa70b1d7201f7d9e00fbeeb15d2c948f5a1db78a79e9849ce131
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] baf47796f2cd996651076b80c5f3086718c62f8094b4ad6aa55fce6c89d7ad9d
[INFO] running `Command { std: "docker" "start" "-a" "baf47796f2cd996651076b80c5f3086718c62f8094b4ad6aa55fce6c89d7ad9d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/read_chars-2294965391372b3d)
[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] [stderr]    Doc-tests read_chars
[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" "baf47796f2cd996651076b80c5f3086718c62f8094b4ad6aa55fce6c89d7ad9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "baf47796f2cd996651076b80c5f3086718c62f8094b4ad6aa55fce6c89d7ad9d", kill_on_drop: false }`
[INFO] [stdout] baf47796f2cd996651076b80c5f3086718c62f8094b4ad6aa55fce6c89d7ad9d