[INFO] fetching crate destream 0.9.0...
[INFO] testing destream-0.9.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate destream 0.9.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate destream 0.9.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate destream 0.9.0
[INFO] tweaked toml for crates.io crate destream 0.9.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate destream 0.9.0 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 destream 0.9.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uuid v1.13.1
[INFO] [stderr]   Downloaded unicode-ident v1.0.16
[INFO] [stderr]   Downloaded quote v1.0.38
[INFO] [stderr]   Downloaded proc-macro2 v1.0.93
[INFO] [stderr]   Downloaded smallvec v1.14.0
[INFO] [stderr]   Downloaded trait-variant v0.1.2
[INFO] [stderr]   Downloaded bytes v1.10.0
[INFO] [stderr]   Downloaded syn v2.0.98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 81cd24f6987f9588242eb3ca639fdb81bdaacc4cfd216f2e03436f6667429a46
[INFO] running `Command { std: "docker" "start" "-a" "81cd24f6987f9588242eb3ca639fdb81bdaacc4cfd216f2e03436f6667429a46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81cd24f6987f9588242eb3ca639fdb81bdaacc4cfd216f2e03436f6667429a46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81cd24f6987f9588242eb3ca639fdb81bdaacc4cfd216f2e03436f6667429a46", kill_on_drop: false }`
[INFO] [stdout] 81cd24f6987f9588242eb3ca639fdb81bdaacc4cfd216f2e03436f6667429a46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 7e21ca46558857d46d040fdd472bde69d3543b8af59abf3172057193ad7458df
[INFO] running `Command { std: "docker" "start" "-a" "7e21ca46558857d46d040fdd472bde69d3543b8af59abf3172057193ad7458df", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.16
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling base64 v0.22.1
[INFO] [stderr]    Compiling uuid v1.13.1
[INFO] [stderr]    Compiling bytes v1.10.0
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling trait-variant v0.1.2
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling destream v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.77s
[INFO] running `Command { std: "docker" "inspect" "7e21ca46558857d46d040fdd472bde69d3543b8af59abf3172057193ad7458df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e21ca46558857d46d040fdd472bde69d3543b8af59abf3172057193ad7458df", kill_on_drop: false }`
[INFO] [stdout] 7e21ca46558857d46d040fdd472bde69d3543b8af59abf3172057193ad7458df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 222831a0832cf4c71b78d20cd3b15425375df309c7fa177cd53e05db6f0e0a69
[INFO] running `Command { std: "docker" "start" "-a" "222831a0832cf4c71b78d20cd3b15425375df309c7fa177cd53e05db6f0e0a69", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling destream v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Fibonacci` is never constructed
[INFO] [stdout]  --> examples/fibonacci.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Fibonacci {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 8.77s
[INFO] running `Command { std: "docker" "inspect" "222831a0832cf4c71b78d20cd3b15425375df309c7fa177cd53e05db6f0e0a69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "222831a0832cf4c71b78d20cd3b15425375df309c7fa177cd53e05db6f0e0a69", kill_on_drop: false }`
[INFO] [stdout] 222831a0832cf4c71b78d20cd3b15425375df309c7fa177cd53e05db6f0e0a69
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] fc86c5ccf69f6dd3ead74c3975c94cb5f890a5e8e98d8d3015183768c976775f
[INFO] running `Command { std: "docker" "start" "-a" "fc86c5ccf69f6dd3ead74c3975c94cb5f890a5e8e98d8d3015183768c976775f", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Fibonacci` is never constructed
[INFO] [stderr]  --> examples/fibonacci.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | struct Fibonacci {
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `destream` (example "fibonacci") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/destream-3475e7e568f6c42d)
[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 destream
[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" "fc86c5ccf69f6dd3ead74c3975c94cb5f890a5e8e98d8d3015183768c976775f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc86c5ccf69f6dd3ead74c3975c94cb5f890a5e8e98d8d3015183768c976775f", kill_on_drop: false }`
[INFO] [stdout] fc86c5ccf69f6dd3ead74c3975c94cb5f890a5e8e98d8d3015183768c976775f