[INFO] fetching crate turingmachine-rs 0.2.0...
[INFO] testing turingmachine-rs-0.2.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate turingmachine-rs 0.2.0 into /workspace/builds/worker-105/source
[INFO] validating manifest of crates.io crate turingmachine-rs 0.2.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate turingmachine-rs 0.2.0
[INFO] finished tweaking crates.io crate turingmachine-rs 0.2.0
[INFO] tweaked toml for crates.io crate turingmachine-rs 0.2.0 written to /workspace/builds/worker-105/source/Cargo.toml
[INFO] crate crates.io crate turingmachine-rs 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80535c84448f2a07324c36ce781ba7666d1b1f9a2b47192433abd7cd07e6b6ce
[INFO] running `Command { std: "docker" "start" "-a" "80535c84448f2a07324c36ce781ba7666d1b1f9a2b47192433abd7cd07e6b6ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80535c84448f2a07324c36ce781ba7666d1b1f9a2b47192433abd7cd07e6b6ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80535c84448f2a07324c36ce781ba7666d1b1f9a2b47192433abd7cd07e6b6ce", kill_on_drop: false }`
[INFO] [stdout] 80535c84448f2a07324c36ce781ba7666d1b1f9a2b47192433abd7cd07e6b6ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 62713fbf08747537848d51983bee27bc01ddcbee2a03640ebcd26246b624fe5f
[INFO] running `Command { std: "docker" "start" "-a" "62713fbf08747537848d51983bee27bc01ddcbee2a03640ebcd26246b624fe5f", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling turingmachine-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "62713fbf08747537848d51983bee27bc01ddcbee2a03640ebcd26246b624fe5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62713fbf08747537848d51983bee27bc01ddcbee2a03640ebcd26246b624fe5f", kill_on_drop: false }`
[INFO] [stdout] 62713fbf08747537848d51983bee27bc01ddcbee2a03640ebcd26246b624fe5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2961930b96304ad677d12ab2916e8879b9073339b558545e61c1e9999deb34cd
[INFO] running `Command { std: "docker" "start" "-a" "2961930b96304ad677d12ab2916e8879b9073339b558545e61c1e9999deb34cd", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling turingmachine-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `iter::Cycle`
[INFO] [stdout]   --> examples/divisibility.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 | use std::{fmt, iter::Cycle};
[INFO] [stdout]    |                ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `MarkedOne`
[INFO] [stdout]   --> examples/divisibility.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     MarkedOne,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Halt`
[INFO] [stdout]   --> examples/divisibility.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     Halt,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Found1InDenominator`
[INFO] [stdout]   --> examples/divisibility.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     Found1InDenominator,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Found1InNuminator`
[INFO] [stdout]   --> examples/divisibility.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     Found1InNuminator,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `Command { std: "docker" "inspect" "2961930b96304ad677d12ab2916e8879b9073339b558545e61c1e9999deb34cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2961930b96304ad677d12ab2916e8879b9073339b558545e61c1e9999deb34cd", kill_on_drop: false }`
[INFO] [stdout] 2961930b96304ad677d12ab2916e8879b9073339b558545e61c1e9999deb34cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c4471d609098b9de5b11bd1b1252de8a2d30b6d70d40dd1f2ff08d3867f64753
[INFO] running `Command { std: "docker" "start" "-a" "c4471d609098b9de5b11bd1b1252de8a2d30b6d70d40dd1f2ff08d3867f64753", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] warning: unused import: `iter::Cycle`
[INFO] [stderr]   --> examples/divisibility.rs:14:16
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::{fmt, iter::Cycle};
[INFO] [stderr]    |                ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `MarkedOne`
[INFO] [stderr]   --> examples/divisibility.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     MarkedOne,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Halt`
[INFO] [stderr]   --> examples/divisibility.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     Halt,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Found1InDenominator`
[INFO] [stderr]   --> examples/divisibility.rs:45:5
[INFO] [stderr]    |
[INFO] [stderr] 45 |     Found1InDenominator,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Found1InNuminator`
[INFO] [stderr]   --> examples/divisibility.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     Found1InNuminator,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `turingmachine-rs` (example "divisibility") generated 5 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/turingmachine_rs-b0235fe542b27c3e)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::fetch_cursor ... ok
[INFO] [stdout] test tests::set_cursor ... ok
[INFO] [stdout] test tests::turing_stepping ... ok
[INFO] [stdout] test tests::turing_into_vec ... ok
[INFO] [stdout] test tests::turing_tape_new ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/exactly-two.rs (/opt/rustwide/target/debug/deps/exactly_two-2576fbb177a03f13)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test exactly_two_proper_output ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/replace-ones.rs (/opt/rustwide/target/debug/deps/replace_ones-12d194c398e1091e)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test replace_ones_proper_output ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests turingmachine-rs
[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" "c4471d609098b9de5b11bd1b1252de8a2d30b6d70d40dd1f2ff08d3867f64753", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4471d609098b9de5b11bd1b1252de8a2d30b6d70d40dd1f2ff08d3867f64753", kill_on_drop: false }`
[INFO] [stdout] c4471d609098b9de5b11bd1b1252de8a2d30b6d70d40dd1f2ff08d3867f64753