[INFO] cloning repository https://github.com/hypen-emdash/Turing-Machine-Simulator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hypen-emdash/Turing-Machine-Simulator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhypen-emdash%2FTuring-Machine-Simulator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhypen-emdash%2FTuring-Machine-Simulator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 93b9d13be9ec992c4280c10f48a3c7adfe2f646f
[INFO] testing hypen-emdash/Turing-Machine-Simulator against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhypen-emdash%2FTuring-Machine-Simulator" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hypen-emdash/Turing-Machine-Simulator on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hypen-emdash/Turing-Machine-Simulator
[INFO] finished tweaking git repo https://github.com/hypen-emdash/Turing-Machine-Simulator
[INFO] tweaked toml for git repo https://github.com/hypen-emdash/Turing-Machine-Simulator written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/hypen-emdash/Turing-Machine-Simulator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ddf7b6db8285c26d3872e60fc367b490da6b8a754da8fb90bd7cc49bd6d7fc2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8ddf7b6db8285c26d3872e60fc367b490da6b8a754da8fb90bd7cc49bd6d7fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ddf7b6db8285c26d3872e60fc367b490da6b8a754da8fb90bd7cc49bd6d7fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ddf7b6db8285c26d3872e60fc367b490da6b8a754da8fb90bd7cc49bd6d7fc2", kill_on_drop: false }`
[INFO] [stdout] 8ddf7b6db8285c26d3872e60fc367b490da6b8a754da8fb90bd7cc49bd6d7fc2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f40e73344856f9754ee90a22ded93f61bb2228bad11ef7c0f7086fe7372ee3d0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f40e73344856f9754ee90a22ded93f61bb2228bad11ef7c0f7086fe7372ee3d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling smol_str v0.1.15
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]    Compiling structopt v0.3.14
[INFO] [stderr]    Compiling ron v0.5.1
[INFO] [stderr]    Compiling turing-machine v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: warn(rust_2018_idioms) is ignored unless specified at crate level
[INFO] [stdout]  --> src/main.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[warn(rust_2018_idioms)]
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 03s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f40e73344856f9754ee90a22ded93f61bb2228bad11ef7c0f7086fe7372ee3d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f40e73344856f9754ee90a22ded93f61bb2228bad11ef7c0f7086fe7372ee3d0", kill_on_drop: false }`
[INFO] [stdout] f40e73344856f9754ee90a22ded93f61bb2228bad11ef7c0f7086fe7372ee3d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 831cb2c8ae2fad2d6c7126ed8af5e5bdaac90474e813d0aef1c3b921618bd8c3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "831cb2c8ae2fad2d6c7126ed8af5e5bdaac90474e813d0aef1c3b921618bd8c3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling turing-machine v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: warn(rust_2018_idioms) is ignored unless specified at crate level
[INFO] [stdout]  --> src/main.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[warn(rust_2018_idioms)]
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` 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 3.15s
[INFO] running `Command { std: "docker" "inspect" "831cb2c8ae2fad2d6c7126ed8af5e5bdaac90474e813d0aef1c3b921618bd8c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "831cb2c8ae2fad2d6c7126ed8af5e5bdaac90474e813d0aef1c3b921618bd8c3", kill_on_drop: false }`
[INFO] [stdout] 831cb2c8ae2fad2d6c7126ed8af5e5bdaac90474e813d0aef1c3b921618bd8c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 07655da5fb957b92069296861f184af6c92fd32e0eb21fd6cc27cad3c248f9d3
[INFO] running `Command { std: "docker" "start" "-a" "07655da5fb957b92069296861f184af6c92fd32e0eb21fd6cc27cad3c248f9d3", kill_on_drop: false }`
[INFO] [stderr] warning: warn(rust_2018_idioms) is ignored unless specified at crate level
[INFO] [stderr]  --> src/main.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[warn(rust_2018_idioms)]
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `turing-machine` (bin "turing-machine" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/turing_machine-c935d262c72a0f25)
[INFO] [stdout] 
[INFO] [stdout] running 24 tests
[INFO] [stdout] test program::tests::empty ... ok
[INFO] [stdout] test program_ron::tests::valid_program ... ok
[INFO] [stdout] test turing_machine::tests::ones_twos_threes::reject_no_enough_twos ... ok
[INFO] [stdout] test turing_machine::tests::ones_twos_threes::reject_no_ones ... ok
[INFO] [stdout] test turing_machine::tests::ones_twos_threes::reject_no_enough_threes ... ok
[INFO] [stdout] test turing_machine::tests::ones_twos_threes::reject_no_threes ... ok
[INFO] [stdout] test turing_machine::tests::ones_twos_threes::reject_no_twos ... ok
[INFO] [stdout] test turing_machine::tests::ones_twos_threes::reject_too_many_ones ... ok
[INFO] [stdout] test turing_machine::tests::ones_twos_threes::reject_too_many_threes ... ok
[INFO] [stdout] test turing_machine::tests::ones_twos_threes::reject_too_many_twos ... ok
[INFO] [stdout] test tape::tests::it_works ... ok
[INFO] [stdout] test turing_machine::tests::even_zeros::accept_empty ... ok
[INFO] [stdout] test turing_machine::tests::construct ... ok
[INFO] [stdout] test turing_machine::tests::even_zeros::reject_nontrivial ... ok
[INFO] [stdout] test turing_machine::tests::ones_twos_threes::accept_large ... ok
[INFO] [stdout] test turing_machine::tests::ones_twos_threes::reject_no_enough_ones ... ok
[INFO] [stdout] test turing_machine::tests::even_zeros::accept_nontrivial ... ok
[INFO] [stdout] test program_ron::tests::degenerate_program ... ok
[INFO] [stdout] test program::tests::nonempty ... ok
[INFO] [stdout] test turing_machine::tests::ones_twos_threes::accept_empty ... ok
[INFO] [stdout] test turing_machine::tests::ones_twos_threes::accept_small ... ok
[INFO] [stdout] test program_ron::tests::empty_string - should panic ... ok
[INFO] [stdout] test program_ron::tests::empty_program - should panic ... ok
[INFO] [stdout] test program_ron::tests::no_initial - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 24 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "07655da5fb957b92069296861f184af6c92fd32e0eb21fd6cc27cad3c248f9d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07655da5fb957b92069296861f184af6c92fd32e0eb21fd6cc27cad3c248f9d3", kill_on_drop: false }`
[INFO] [stdout] 07655da5fb957b92069296861f184af6c92fd32e0eb21fd6cc27cad3c248f9d3