[INFO] fetching crate fractran_rs 0.6.1...
[INFO] testing fractran_rs-0.6.1 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate fractran_rs 0.6.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate fractran_rs 0.6.1
[INFO] finished tweaking crates.io crate fractran_rs 0.6.1
[INFO] tweaked toml for crates.io crate fractran_rs 0.6.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fractran_rs 0.6.1 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fractran_rs 0.6.1 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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1134896db577a332eee4cd2f8fee5c1ba3de848e528c87b33055e13bad8552f
[INFO] running `Command { std: "docker" "start" "-a" "b1134896db577a332eee4cd2f8fee5c1ba3de848e528c87b33055e13bad8552f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1134896db577a332eee4cd2f8fee5c1ba3de848e528c87b33055e13bad8552f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1134896db577a332eee4cd2f8fee5c1ba3de848e528c87b33055e13bad8552f", kill_on_drop: false }`
[INFO] [stdout] b1134896db577a332eee4cd2f8fee5c1ba3de848e528c87b33055e13bad8552f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 544c05814bf0622a006dff70927a28e699f1e4a4d977f35bea988b881ae42c29
[INFO] running `Command { std: "docker" "start" "-a" "544c05814bf0622a006dff70927a28e699f1e4a4d977f35bea988b881ae42c29", kill_on_drop: false }`
[INFO] [stderr]    Compiling fractran_rs v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "544c05814bf0622a006dff70927a28e699f1e4a4d977f35bea988b881ae42c29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "544c05814bf0622a006dff70927a28e699f1e4a4d977f35bea988b881ae42c29", kill_on_drop: false }`
[INFO] [stdout] 544c05814bf0622a006dff70927a28e699f1e4a4d977f35bea988b881ae42c29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] afdfaf0d3c79a6ec691fd4336bd62b7e4a4c30837593834b0c214df547eda6e2
[INFO] running `Command { std: "docker" "start" "-a" "afdfaf0d3c79a6ec691fd4336bd62b7e4a4c30837593834b0c214df547eda6e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling fractran_rs v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> examples/multiply.rs:12:23
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct MultiplyOutput(u32);
[INFO] [stdout]    |        -------------- ^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `MultiplyOutput` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> examples/add.rs:12:18
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct AddOutput(u32);
[INFO] [stdout]    |        --------- ^^^
[INFO] [stdout]    |        |
[INFO] [stdout]    |        field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `AddOutput` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "afdfaf0d3c79a6ec691fd4336bd62b7e4a4c30837593834b0c214df547eda6e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afdfaf0d3c79a6ec691fd4336bd62b7e4a4c30837593834b0c214df547eda6e2", kill_on_drop: false }`
[INFO] [stdout] afdfaf0d3c79a6ec691fd4336bd62b7e4a4c30837593834b0c214df547eda6e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 611fd750e80735bf8b8ecd1ce316efb46fd3b83dcdc783ea148c6987e6458544
[INFO] running `Command { std: "docker" "start" "-a" "611fd750e80735bf8b8ecd1ce316efb46fd3b83dcdc783ea148c6987e6458544", kill_on_drop: false }`
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> examples/add.rs:12:18
[INFO] [stderr]    |
[INFO] [stderr] 12 | struct AddOutput(u32);
[INFO] [stderr]    |        --------- ^^^
[INFO] [stderr]    |        |
[INFO] [stderr]    |        field in this struct
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider removing this field
[INFO] [stderr]    = note: `AddOutput` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `fractran_rs` (example "add") generated 1 warning
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> examples/multiply.rs:12:23
[INFO] [stderr]    |
[INFO] [stderr] 12 | struct MultiplyOutput(u32);
[INFO] [stderr]    |        -------------- ^^^
[INFO] [stderr]    |        |
[INFO] [stderr]    |        field in this struct
[INFO] [stderr]    |
[INFO] [stderr]    = help: consider removing this field
[INFO] [stderr]    = note: `MultiplyOutput` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `fractran_rs` (example "multiply") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fractran_rs-3e63569e9cc3f013)
[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 fractran_rs
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - (line 48) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 72) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 83) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 39) ... ok
[INFO] [stdout] test src/lib.rs - fractran (line 75) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.35s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "611fd750e80735bf8b8ecd1ce316efb46fd3b83dcdc783ea148c6987e6458544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "611fd750e80735bf8b8ecd1ce316efb46fd3b83dcdc783ea148c6987e6458544", kill_on_drop: false }`
[INFO] [stdout] 611fd750e80735bf8b8ecd1ce316efb46fd3b83dcdc783ea148c6987e6458544