[INFO] updating cached repository https://github.com/FukudaTaiga/solver_with_symbolic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f2a587a1670b08dea167bfead4a83396cbd65999
[INFO] checking FukudaTaiga/solver_with_symbolic/f2a587a1670b08dea167bfead4a83396cbd65999 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFukudaTaiga%2Fsolver_with_symbolic" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FukudaTaiga/solver_with_symbolic on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/FukudaTaiga/solver_with_symbolic
[INFO] finished tweaking git repo https://github.com/FukudaTaiga/solver_with_symbolic
[INFO] tweaked toml for git repo https://github.com/FukudaTaiga/solver_with_symbolic written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/FukudaTaiga/solver_with_symbolic 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b371dbf8eb9c270a4486994ef845ef90a4dd182d3380fb3a2e029834415b0cc5
[INFO] running `Command { std: "docker" "start" "-a" "b371dbf8eb9c270a4486994ef845ef90a4dd182d3380fb3a2e029834415b0cc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b371dbf8eb9c270a4486994ef845ef90a4dd182d3380fb3a2e029834415b0cc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b371dbf8eb9c270a4486994ef845ef90a4dd182d3380fb3a2e029834415b0cc5", kill_on_drop: false }`
[INFO] [stdout] b371dbf8eb9c270a4486994ef845ef90a4dd182d3380fb3a2e029834415b0cc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54a068bb36f7973d3eec52a7366ee43478a2c1c104ba88e1b2adbbcc042ca54e
[INFO] running `Command { std: "docker" "start" "-a" "54a068bb36f7973d3eec52a7366ee43478a2c1c104ba88e1b2adbbcc042ca54e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.77
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling fst v0.4.7
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking permutation_iterator v0.1.2
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]    Compiling pomelo-impl v0.1.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]     Checking thiserror v1.0.29
[INFO] [stderr]     Checking strum v0.21.0
[INFO] [stderr]     Checking structopt v0.3.23
[INFO] [stderr]     Checking pomelo v0.1.5
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]     Checking smt2parser v0.6.1
[INFO] [stderr]     Checking solver_with_symbolic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `initial_state_mut` is never used
[INFO] [stdout]   --> src/state.rs:83:6
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub trait StateMachine: Sized {
[INFO] [stdout]    |           ------------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 83 |   fn initial_state_mut(&mut self) -> &mut Self::StateType;
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `HashSetExt` is never used
[INFO] [stdout]    --> src/util.rs:117:20
[INFO] [stdout]     |
[INFO] [stdout] 117 |   pub(crate) trait HashSetExt: std::marker::Sized {
[INFO] [stdout]     |                    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `initial_state_mut` is never used
[INFO] [stdout]   --> src/state.rs:83:6
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub trait StateMachine: Sized {
[INFO] [stdout]    |           ------------ method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 83 |   fn initial_state_mut(&mut self) -> &mut Self::StateType;
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `HashSetExt` is never used
[INFO] [stdout]    --> src/util.rs:117:20
[INFO] [stdout]     |
[INFO] [stdout] 117 |   pub(crate) trait HashSetExt: std::marker::Sized {
[INFO] [stdout]     |                    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.20s
[INFO] running `Command { std: "docker" "inspect" "54a068bb36f7973d3eec52a7366ee43478a2c1c104ba88e1b2adbbcc042ca54e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54a068bb36f7973d3eec52a7366ee43478a2c1c104ba88e1b2adbbcc042ca54e", kill_on_drop: false }`
[INFO] [stdout] 54a068bb36f7973d3eec52a7366ee43478a2c1c104ba88e1b2adbbcc042ca54e