[INFO] fetching crate amfnwasm 0.3.6...
[INFO] testing amfnwasm-0.3.6 against 1.59.0 for beta-1.60-1
[INFO] extracting crate amfnwasm 0.3.6 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate amfnwasm 0.3.6 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate amfnwasm 0.3.6
[INFO] finished tweaking crates.io crate amfnwasm 0.3.6
[INFO] tweaked toml for crates.io crate amfnwasm 0.3.6 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bd67dc41a6ee7885af7a058bee03131306fcd17e43d8f1206a49f2467fad2c1c
[INFO] running `Command { std: "docker" "start" "-a" "bd67dc41a6ee7885af7a058bee03131306fcd17e43d8f1206a49f2467fad2c1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd67dc41a6ee7885af7a058bee03131306fcd17e43d8f1206a49f2467fad2c1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd67dc41a6ee7885af7a058bee03131306fcd17e43d8f1206a49f2467fad2c1c", kill_on_drop: false }`
[INFO] [stdout] bd67dc41a6ee7885af7a058bee03131306fcd17e43d8f1206a49f2467fad2c1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d13c4e86773613bc09aefc185ecfbec7945a23aa563c7aee20b31855c02398dd
[INFO] running `Command { std: "docker" "start" "-a" "d13c4e86773613bc09aefc185ecfbec7945a23aa563c7aee20b31855c02398dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.79
[INFO] [stderr]    Compiling bumpalo v3.9.1
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling wasm-bindgen v0.2.79
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling json v0.12.4
[INFO] [stderr]    Compiling compare v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling regex v1.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling libmath v0.2.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling rust_decimal v1.10.3
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.79
[INFO] [stderr]    Compiling amfnengine v0.3.3
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.79
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.79
[INFO] [stderr]    Compiling js-sys v0.3.56
[INFO] [stderr]    Compiling amfnwasm v0.3.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]     --> src/lib.rs:2531:29
[INFO] [stdout]      |
[INFO] [stdout] 2531 | ...                   String::from("");
[INFO] [stdout]      |                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.63s
[INFO] running `Command { std: "docker" "inspect" "d13c4e86773613bc09aefc185ecfbec7945a23aa563c7aee20b31855c02398dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d13c4e86773613bc09aefc185ecfbec7945a23aa563c7aee20b31855c02398dd", kill_on_drop: false }`
[INFO] [stdout] d13c4e86773613bc09aefc185ecfbec7945a23aa563c7aee20b31855c02398dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a0ca29e7a0325f1e7be3bc37e51953ce154fb565266da5939e23d4dcd614155
[INFO] running `Command { std: "docker" "start" "-a" "0a0ca29e7a0325f1e7be3bc37e51953ce154fb565266da5939e23d4dcd614155", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling amfnwasm v0.3.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]     --> src/lib.rs:2531:29
[INFO] [stdout]      |
[INFO] [stdout] 2531 | ...                   String::from("");
[INFO] [stdout]      |                       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.94s
[INFO] running `Command { std: "docker" "inspect" "0a0ca29e7a0325f1e7be3bc37e51953ce154fb565266da5939e23d4dcd614155", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a0ca29e7a0325f1e7be3bc37e51953ce154fb565266da5939e23d4dcd614155", kill_on_drop: false }`
[INFO] [stdout] 0a0ca29e7a0325f1e7be3bc37e51953ce154fb565266da5939e23d4dcd614155
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e07fa03bac3b1a8320cc48fc5b8010079d7b22d0a26174552ebed6d3bcb0e85c
[INFO] running `Command { std: "docker" "start" "-a" "e07fa03bac3b1a8320cc48fc5b8010079d7b22d0a26174552ebed6d3bcb0e85c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]     --> src/lib.rs:2531:29
[INFO] [stderr]      |
[INFO] [stderr] 2531 | ...                   String::from("");
[INFO] [stderr]      |                       ^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `amfnwasm` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/amfnwasm-9181f3cbe0a659e1)
[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" "e07fa03bac3b1a8320cc48fc5b8010079d7b22d0a26174552ebed6d3bcb0e85c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e07fa03bac3b1a8320cc48fc5b8010079d7b22d0a26174552ebed6d3bcb0e85c", kill_on_drop: false }`
[INFO] [stdout] e07fa03bac3b1a8320cc48fc5b8010079d7b22d0a26174552ebed6d3bcb0e85c