[INFO] cloning repository https://github.com/asleep-cult/shred-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/asleep-cult/shred-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasleep-cult%2Fshred-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasleep-cult%2Fshred-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 038a219bd697fc004704a65f0e03c10b072b3310
[INFO] checking asleep-cult/shred-rs against 895980e0290783bb09b1ccf1b11f14eb09b10430 for pr-160186
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasleep-cult%2Fshred-rs" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/asleep-cult/shred-rs
[INFO] finished tweaking git repo https://github.com/asleep-cult/shred-rs
[INFO] tweaked toml for git repo https://github.com/asleep-cult/shred-rs written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/asleep-cult/shred-rs on toolchain 895980e0290783bb09b1ccf1b11f14eb09b10430
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/asleep-cult/shred-rs 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" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 0ad2886c2ccb2ea3e3ca2f5544903377390437811578eb742b90b8cec3d8e2c0
[INFO] running `Command { std: "docker" "start" "0ad2886c2ccb2ea3e3ca2f5544903377390437811578eb742b90b8cec3d8e2c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ad2886c2ccb2ea3e3ca2f5544903377390437811578eb742b90b8cec3d8e2c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0ad2886c2ccb2ea3e3ca2f5544903377390437811578eb742b90b8cec3d8e2c0" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ad2886c2ccb2ea3e3ca2f5544903377390437811578eb742b90b8cec3d8e2c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0ad2886c2ccb2ea3e3ca2f5544903377390437811578eb742b90b8cec3d8e2c0" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.13.5
[INFO] [stderr]     Checking rustc-hash v2.1.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]     Checking shred-core v0.1.0 (/opt/rustwide/workdir/crates/shred-core)
[INFO] [stderr]     Checking shred-automaton v0.1.0 (/opt/rustwide/workdir/crates/shred-automaton)
[INFO] [stderr]     Checking shred-generator v0.1.0 (/opt/rustwide/workdir/crates/shred-generator)
[INFO] [stderr]    Compiling pyo3-build-config v0.29.2
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> crates/shred-generator/src/generator.rs:47:21
[INFO] [stdout]    |
[INFO] [stdout] 47 |                     table.add_shift(*from_state, *symbol_id, *to_state);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 47 |                     let _ = table.add_shift(*from_state, *symbol_id, *to_state);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> crates/shred-generator/src/generator.rs:50:21
[INFO] [stdout]    |
[INFO] [stdout] 50 |                     table.add_goto(*from_state, *symbol_id, *to_state);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 50 |                     let _ = table.add_goto(*from_state, *symbol_id, *to_state);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> crates/shred-generator/src/generator.rs:70:25
[INFO] [stdout]    |
[INFO] [stdout] 70 |                         table.add_accept(state_id, production_id);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 70 |                         let _ = table.add_accept(state_id, production_id);
[INFO] [stdout]    |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> crates/shred-generator/src/generator.rs:77:29
[INFO] [stdout]    |
[INFO] [stdout] 77 | ...                   table.add_reduce(state_id, lookahead_symbol, production_id);
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 77 |                             let _ = table.add_reduce(state_id, lookahead_symbol, production_id);
[INFO] [stdout]    |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> crates/shred-generator/src/generator.rs:103:17
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 table.add_reduce(*state_id, lookahead_symbol, production_id);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 let _ = table.add_reduce(*state_id, lookahead_symbol, production_id);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.47
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> crates/shred-generator/src/generator.rs:47:21
[INFO] [stdout]    |
[INFO] [stdout] 47 |                     table.add_shift(*from_state, *symbol_id, *to_state);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 47 |                     let _ = table.add_shift(*from_state, *symbol_id, *to_state);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> crates/shred-generator/src/generator.rs:50:21
[INFO] [stdout]    |
[INFO] [stdout] 50 |                     table.add_goto(*from_state, *symbol_id, *to_state);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 50 |                     let _ = table.add_goto(*from_state, *symbol_id, *to_state);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> crates/shred-generator/src/generator.rs:70:25
[INFO] [stdout]    |
[INFO] [stdout] 70 |                         table.add_accept(state_id, production_id);
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 70 |                         let _ = table.add_accept(state_id, production_id);
[INFO] [stdout]    |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> crates/shred-generator/src/generator.rs:77:29
[INFO] [stdout]    |
[INFO] [stdout] 77 | ...                   table.add_reduce(state_id, lookahead_symbol, production_id);
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 77 |                             let _ = table.add_reduce(state_id, lookahead_symbol, production_id);
[INFO] [stdout]    |                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> crates/shred-generator/src/generator.rs:103:17
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 table.add_reduce(*state_id, lookahead_symbol, production_id);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 103 |                 let _ = table.add_reduce(*state_id, lookahead_symbol, production_id);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tester v0.1.0 (/opt/rustwide/workdir/tester)
[INFO] [stdout] warning: unused variable: `state_id`
[INFO] [stdout]   --> tester/src/main.rs:85:85
[INFO] [stdout]    |
[INFO] [stdout] 85 |         Err(shred_automaton::automaton::AutomatonErrorKind::UnexpectedToken { item, state_id }) => {
[INFO] [stdout]    |                                                                                     ^^^^^^^^ help: try ignoring the field: `state_id: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state_id`
[INFO] [stdout]   --> tester/src/main.rs:85:85
[INFO] [stdout]    |
[INFO] [stdout] 85 |         Err(shred_automaton::automaton::AutomatonErrorKind::UnexpectedToken { item, state_id }) => {
[INFO] [stdout]    |                                                                                     ^^^^^^^^ help: try ignoring the field: `state_id: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling pyo3-ffi v0.29.2
[INFO] [stderr]    Compiling pyo3 v0.29.2
[INFO] [stderr]    Compiling pyo3-macros-backend v0.29.2
[INFO] [stderr]    Compiling pyo3-macros v0.29.2
[INFO] [stderr]     Checking python-bindings v0.1.0 (/opt/rustwide/workdir/crates/python-bindings)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.04s
[INFO] running `Command { std: "docker" "inspect" "0ad2886c2ccb2ea3e3ca2f5544903377390437811578eb742b90b8cec3d8e2c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ad2886c2ccb2ea3e3ca2f5544903377390437811578eb742b90b8cec3d8e2c0", kill_on_drop: false }`
[INFO] [stdout] 0ad2886c2ccb2ea3e3ca2f5544903377390437811578eb742b90b8cec3d8e2c0
