[INFO] fetching crate four-char-code 2.3.0...
[INFO] testing four-char-code-2.3.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate four-char-code 2.3.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate four-char-code 2.3.0
[INFO] finished tweaking crates.io crate four-char-code 2.3.0
[INFO] tweaked toml for crates.io crate four-char-code 2.3.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate four-char-code 2.3.0 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] crate crates.io crate four-char-code 2.3.0 already has a lockfile, it will not be regenerated
[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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 972932b0c7935fbe4ec8bc2da8c0a99192b85b75e1b6f958eda7f21ce9e6222d
[INFO] running `Command { std: "docker" "start" "-a" "972932b0c7935fbe4ec8bc2da8c0a99192b85b75e1b6f958eda7f21ce9e6222d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "972932b0c7935fbe4ec8bc2da8c0a99192b85b75e1b6f958eda7f21ce9e6222d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "972932b0c7935fbe4ec8bc2da8c0a99192b85b75e1b6f958eda7f21ce9e6222d", kill_on_drop: false }`
[INFO] [stdout] 972932b0c7935fbe4ec8bc2da8c0a99192b85b75e1b6f958eda7f21ce9e6222d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 5282e19305179e426df4c88af093d3a46ee0c65c7f604f0e8ea7211ad10f9127
[INFO] running `Command { std: "docker" "start" "-a" "5282e19305179e426df4c88af093d3a46ee0c65c7f604f0e8ea7211ad10f9127", kill_on_drop: false }`
[INFO] [stderr]    Compiling four-char-code v2.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "5282e19305179e426df4c88af093d3a46ee0c65c7f604f0e8ea7211ad10f9127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5282e19305179e426df4c88af093d3a46ee0c65c7f604f0e8ea7211ad10f9127", kill_on_drop: false }`
[INFO] [stdout] 5282e19305179e426df4c88af093d3a46ee0c65c7f604f0e8ea7211ad10f9127
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ecb56baf798f15aaaab8506ac90d2ffe2620bf026c39f7bc65172669acf6468a
[INFO] running `Command { std: "docker" "start" "-a" "ecb56baf798f15aaaab8506ac90d2ffe2620bf026c39f7bc65172669acf6468a", kill_on_drop: false }`
[INFO] [stderr]    Compiling four-char-code v2.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "ecb56baf798f15aaaab8506ac90d2ffe2620bf026c39f7bc65172669acf6468a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecb56baf798f15aaaab8506ac90d2ffe2620bf026c39f7bc65172669acf6468a", kill_on_drop: false }`
[INFO] [stdout] ecb56baf798f15aaaab8506ac90d2ffe2620bf026c39f7bc65172669acf6468a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 96a7710d884ad2f09000d1c0d1cfc4f037fe367b02707221bfc69c02d69431ef
[INFO] running `Command { std: "docker" "start" "-a" "96a7710d884ad2f09000d1c0d1cfc4f037fe367b02707221bfc69c02d69431ef", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/four_char_code-e0517b05acae7382)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::format ... ok
[INFO] [stdout] test tests::invalid ... ok
[INFO] [stdout] test tests::valid ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests four_char_code
[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" "96a7710d884ad2f09000d1c0d1cfc4f037fe367b02707221bfc69c02d69431ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96a7710d884ad2f09000d1c0d1cfc4f037fe367b02707221bfc69c02d69431ef", kill_on_drop: false }`
[INFO] [stdout] 96a7710d884ad2f09000d1c0d1cfc4f037fe367b02707221bfc69c02d69431ef